Abstract

The present invention relates to a structure comprising (i) a layer or profile (A) composed of a first material, and (ii) a polyolefin layer or profile (B) adjacent to layer or profile (A) which is composed of a composition comprising a base resin comprising a polyolefin, characterized in that the surface of any or both of layer or profile (A) and layer or profile (B) has/have been treated with a composition comprising an organosilicon compound before (A) and (B) are brought adjacent to each other, to a process for the production of such a structure, to an article, in particular a coated pipe, comprising such a structure and to the use of a composition comprising an organosilicon compound as an adhesion promoter in such a structure.

IPC Classes  ?

• B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
• B32B 1/08 - Tubular products
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• F16L 9/147 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
• B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
• F16L 58/04 - Coatings characterised by the materials used
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
• B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
• B32B 15/085 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyolefins
• B32B 15/18 - Layered products essentially comprising metal comprising iron or steel

Abstract

3 and a comonomer content of less than 2.5 mol %.

IPC Classes  ?

• C08L 23/06 - Polyethene
• C08L 23/08 - Copolymers of ethene
• C08J 5/18 - Manufacture of films or sheets

Abstract

A multimodal polymer comprising a higher molecular weight component and a lower molecular weight component, said lower molecular weight component being an ethylene homopolymer or ethylene copolymer with at least one C3-20 α-olefin; and said higher molecular weight component being a copolymer of ethylene, at least one aliphatic diene and optionally at least one C3-20 α-olefin; wherein the density of the multimodal polymer is from 935 to 980 kg/m3.

IPC Classes  ?

• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers

Abstract

Extrusion coating polyethylene composition A), comprising a) 70 wt% - 98wt% of a high pressure low density polyethylene homopolymer, produced in a tubular reactor, having a melt index of 2 to 8 g/10 min according to ISO 1133 (190°C, 2.16 kg) and a density of 915 to 935 kg/m3 according to ISO 1183 and b) 2 wt% - 30 wt of a long chain branched, low-density polyethylene, having a melt index MFR of 2.5 to 10.0 g/10 min according to ISO 1133 (190°C, 2.16 kg), a density of 910 to 935 kg/m3 according to ISO 1183 and - a dynamic viscosity η0.05 at a shear rate of 0.05 rad/s and a dynamic viscosity η300 rad/s which satisfy the following relationship: η300 ≤ 108 Pa*s + 0.0253* η0.05 and/or - a phase shift δ0.5 at a frequency of 0.5 rad/s and a phase shift δ300 at a frequency of 300 rad/s, which satisfy the following relationship: tan δ300 ≥ 0.45 + 0.164* tan δ 0.05 and its use.

IPC Classes  ?

• C08L 23/06 - Polyethene
• C09D 123/04 - Homopolymers or copolymers of ethene

Abstract

The present invention is directed to a first polypropylene composition comprising a propylene copolymer as matrix phase (A) comprising a homo/random/block copolymer consisting of a) a propylene homopolymer (A1); b) a propylene random copolymer (A2); and c) an ethylene-propylene rubber (EPR) (A3) and a polyolefin (B) dispersed in the matrix phase (A), which comprises hydrolysable silicon-containing groups. The present invention is furthermore directed to a second polypropylene composition comprising a matrix phase (A) comprising a propylene homo- or copolymer with an impact strength at + 23 °C of at least 40.0 kJ/m2 in a Charpy notched test according to ISO 179-1 eA:2000 and a polyolefin (B) dispersed in the matrix phase (A), which comprises hydrolysable silicon-containing groups. The invention is furthermore directed to a production process for the polypropylene compositions and an article made thereof.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 23/14 - Copolymers of propene
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention relates to a polymer composition comprising a polyolefin base resin comprising (A) a propylene homopolymer with a MWD of 1.5 to 5.0, and (B) an ethylene copolymer with one or more comonomers selected from alpha-olefins with 4 to 12 carbon atoms, having a density of not greater than 920 kg/m3 wherein the polyolefin base resin has a weight ratio of propylene homopolymer (A) to ethylene copolymer (B) from 95:5 to 60:40, the use of such a polymer composition for the manufacture of an injection molded article, an article produced from such a polymer composition, an article with a grained surface structure produced from such a polymer composition showing having a scratch resistance, determined as the difference of the luminance ΔL at a load of 10 N, of not more than 1 and a gloss at an angle of 60° of not more than 2.8%, and the use of a polymer composition for the production of such an article.

IPC Classes  ?

• C08L 23/12 - Polypropene

Abstract

The invention relates to a coated pipe comprising a core, an adhesion layer coated on the core and an outer coating layer coated on the adhesion layer, wherein at least the adhesion layer comprises a propylene polymer composition comprising: (A) a propylene homo- or copolymer, and (B) an elastomeric component and to the use of such a propylene polymer composition for coating a pipe.

IPC Classes  ?

• C09D 123/10 - Homopolymers or copolymers of propene
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics

Abstract

The invention relates to a coated pipe comprising a core, an adhesion layer coated on the core and an outer coating layer coated on the adhesion layer, wherein at least the adhesion layer comprises a propylene polymer composition comprising: (A) a propylene homo- or copolymer, and (B) an elastomeric component and to the use of such a propylene polymer composition for coating a pipe.

IPC Classes  ?

• C09D 123/10 - Homopolymers or copolymers of propene
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics

Abstract

The present invention relates to a polymer composition, comprising - a polyolefin, - a stericallyhindered phenol of the following formula (I), wherein the groups X, which can be the same or different, have the following formula (II), wherein R1 and R4, which can be the same or different, are an alkyl group having from 1 to 8 carbon atoms; R2, R3, R5, and R6, which can be the same or different, are hydrogen or an alkyl group having from 1 to 8 carbon atoms, - a hydrotalcite and/or bis(2,4-dicumylphenyl)pentaerythritol diphosphite.

IPC Classes  ?

• C08L 23/02 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
• C08K 5/00 - Use of organic ingredients

Abstract

The invention relates to a coloured ß-nucleated polypropylene composition having a high content of ß-modification,wherein the polypropylene composition comprises at least one ß- nucleating agent and an inorganic blue pigment and an inorganic yellow pigment.

IPC Classes  ?

• C08F 210/06 - Propene
• C08K 5/00 - Use of organic ingredients

Abstract

Improved method for tailoring the molecular weight distribution and comonomer incorporation of a multimodal ethylene polymer having a lower molecular weight component and a higher molecular weight component comprising polymerizing ethylene and optionally at least one further alpha-olefin in at least two stages, wherein at least one stage is carried out in a slurry phase in the presence of an improved solid Ziegler-Natta catalyst system, said catalyst system comprising 1) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate complex of the formula (I): Mg(OR1)2-n(R1)n, wherein each R1 independently represents a C1-C20 hydrocarbyl group; and 0 ≤ n < 2 and may or may not be an integer; b) an aluminium compound of the formula (II) AI(R2)mX3-m, wherein each R2 independently represents an alkyl of up to 6 carbon atoms; each X is independently a halogen; 0 ≤ m < 3 and m and may or may not be an integer c) a vanadium compound and a titanium compound in portions such as to provide a molar ratio of V:Ti from 99:1 to 1:99 and d) optionally one or more organic ligand compound(s) which is/are selected from organic compounds comprising a cyclopentadienyl anion backbone, in order to yield the solid procatalyst and 2) one or more organometallic cocatalyst(s) of the formula (III) wherein each R is independently a C1-C20-alkyl group, 0 ≤ x ≤ 2; 1 ≤ y ≤ 3; 0 ≤ z ≤ 2 and x + y + z = 3, x, y and z may or may not be an integer; a polymer obtainable by this method and use of such a polymer for the manufacture of pipes and films.

IPC Classes  ?

• C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• C08F 4/685 - Vanadium or compounds thereof in combination with titanium or compounds thereof
• C08F 2/00 - Processes of polymerisation
• C08F 297/08 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
• C08J 5/18 - Manufacture of films or sheets
• F16L 9/12 - Rigid pipes of plastics with or without reinforcement

Abstract

The present invention relates to a process for the preparation of an article, comprising the following steps: (a) providing a component (i) which comprises a blend of (a1) an unsaturated first polyolefin having a certain total amount m1 of carbon-carbon double bonds/1000 carbon atoms, (a2) a crosslinking agent, (a3) optionally an unsaturated low molecular weight compound having a certain total amount m2 carbon-carbon double bonds/1000 carbon atoms, (b) providing a component (ii) which comprises a second polymer having a certain total amount m3 of carbon-carbon double bonds/ 1000 carbon atoms, wherein m1, m2 and m3 satisfy a certain relationship, (c) forming a blend of component (i) and component (ii) wherein the weight ratio of the component (i) to the component (ii) is within the range of 10:90 to 99:1, (d) applying one or more layers of the blend onto a substrate.

IPC Classes  ?

• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers

Abstract

The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

IPC Classes  ?

• C09D 123/06 - Polyethene
• C08L 23/06 - Polyethene
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 6 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

IPC Classes  ?

• C09D 123/06 - Polyethene
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol and a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 945 kg/m3 to 958 kg/m3. The coatings have a high stiffness, good properties at elevated temperatures and acceptable stress-cracking properties.

IPC Classes  ?

• C09D 123/06 - Polyethene
• C09D 123/08 - Copolymers of ethene
• C08L 23/08 - Copolymers of ethene
• C08L 23/06 - Polyethene

Abstract

The present invention relates to a polyolefin composition comprising (A) a cross-linkable polyolefin with hydrolysable silane groups; (B) and a silanol condensation catalyst characterized in that the Δ F is more than 40 Nm and the cross-linking speed is more than 0.1 Nm/s in the ice test and retention of more than 60% of the elongation at break after 500 h in SEPAP UV exposure, further a polyolefin composition comprising (A) a cross-linkable polyolefin with hydrolysable silane groups; (B) an acidic silanol condensation catalyst, and (C) at least one UV stabilizer that is acidic, i.e. pH equal or less than 6.2, measured at 20-25 °C and with 1 wt% suspension; to an article comprising such a composition, and to the use of such a composition for the production of an article.

IPC Classes  ?

• C08K 5/00 - Use of organic ingredients
• C08K 5/3435 - Piperidines
• C08K 5/3475 - Five-membered rings condensed with carbocyclic rings

Abstract

The present invention relates to a flame retardant polymer composition comprising (A) a polar ethylene copolymer comprising alkyl acrylate comonomer units, (B) coated aluminum hydroxide as filler material to an article, in particular a wire or cable, comprising said flame retardant polymer composition, and to the use of said composition for the production of a layer of a wire or cable. The invention is furthermore directed to a process for producing a flame retardant polymer composition.

IPC Classes  ?

• C08K 9/04 - Ingredients treated with organic substances
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

Abstract

The present invention concerns a process for removing impurities from air to be used in the oxidation of cumene, which process comprises providing an air feed containing air and at least one acidic component, contacting the air with an aqueous caustic solution, which contains at least one alkaline compound whereby to neutralize the acidic components in the air feed, e.g. to form inorganic salts, separating a first purified air stream from the caustic solution, contacting the first purified air stream with fresh water to dissolve residual caustic solution and/or salts in the water, and separating a second purified air stream from the water containing residual caustic solution and salts. Further, the present invention concerns a purification column for use in purifying air.

IPC Classes  ?

• C07C 37/08 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by decomposition of hydroperoxides, e.g. cumene hydroperoxide
• B01D 53/50 - Sulfur oxides

Abstract

The present invention concerns a process for the removal of a salt from a salt-containing organic mixture, which process comprises, in a first step, adding water to the salt-containing organic mixture in order to form a water-containing organic mixture, in a second step, allowing the mixture to settle in a settling zone into an organic upper phase, and an aqueous lower phase, and in a third step, separating the organic phase from the aqueous phase, whereby the water-containing mixture is conducted to the settling zone of the second step through a line in which the mixture is allowed to mix and the salts are allowed to dissolve into the water. Further, the invention concerns an apparatus for neutralizing an acid-containing organic mixture and for subsequently removing salts from the neutralized organic mixture.

IPC Classes  ?

• C07C 37/72 - Separation; Purification; Stabilisation; Use of additives by physical treatment by liquid-liquid treatment
• C07C 45/80 - Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
• C07C 39/04 - Phenol
• C07C 49/08 - Acetone

Abstract

The present invention relates to a flame retardant polymer composition comprising (A) an ethylene copolymer comprising alkyl acrylate comonomer units, (B) coated aluminum hydroxide as filler material (C) a nanofiller to an article, in particular a wire or cable, comprising said flame retardant polymer composition, and to the use of said composition for the production of a layer of a wire or cable. The invention is furthermore directed to a process for producing a flame retardant polymer composition.

IPC Classes  ?

• C08K 9/00 - Use of pretreated ingredients
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

Abstract

The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), comprising one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles, which reactor system comprises at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit comprises means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for displacing metered quantities of polymerized particles from the moving bed unit into the fluidized bed unit, and to the use of such reactor system.

IPC Classes  ?

• B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
• B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
• B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• B01J 8/08 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
• B01J 8/10 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles
• B01J 8/12 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow

Abstract

The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 6 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

IPC Classes  ?

• C09D 123/06 - Polyethene
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3. Further, the multimodal ethylene copolymer comprises the multimodal ethylene copolymer comprises from 49 to 59 % based on the weight of the multimodal ethylene copolymer a low molecular weight ethylene homopolymer component, said low molecular weight ethylene homopolymer having a weight average molecular weight of from 5000 g/mol to 70000 g/mol; and from 51 to 41 % based on the weight of the multimodal ethylene copolymer a high molecular weight ethylene copolymer component, said high molecular weight ethylene copolymer having a weight average molecular weight of from 100000 g/mol to 700000 g/mol. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

IPC Classes  ?

• C09D 123/06 - Polyethene
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention relates to a polypropylene composition comprising: a matrix phase comprising a polypropylene homo- or copolymer (A); and a phase dispersed in said matrix phase comprising an olefin homo- or copolymer (B) having hydrolysable silicon-containing groups, and an inorganic filler material (C) containing on its surface silanol groups or precursors thereof, and having a specific surface BET of 30 to 300 m2/g, determined according to ISO 9277:1995, to an article comprising such a composition, and to the use of such a composition for the production of an article.

IPC Classes  ?

• C08L 23/04 - Homopolymers or copolymers of ethene
• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
• C08K 9/04 - Ingredients treated with organic substances
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention is directed to particular titanium dioxide containing compositions which allow the retention of a high crosslinking performance of a polyolefin composition comprising a crosslmkable polyolefin with hydrolysable silane groups, a Brönstedt acid silanol condensation catalyst and said titanium dioxide containing composition. The retention of the high crosslinking performance is shown by a difference in torque measured at 120 °C of 40 Nm or higher.

IPC Classes  ?

• C08K 5/42 - Sulfonic acids; Derivatives thereof
• C08K 3/22 - Oxides; Hydroxides of metals
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules

Abstract

The present invention relates to a polyolefm composition comprising: (i) a polyolefm (A); (ii) an aromatic compound (B) comprising a, preferably consisting of the, structural unit according to the following formula (I) wherein one or more of the C-atoms in the phenyl rings to which residue R1, R2, R3, R4, R5, R6, R7, or R8 is attached may also be a heteroatom, such as N, in which case the respective residue R1, R2, R3, R4, R5, R6, R7, or R8 is not present; X either is no atom so that there is a direct bond between the two phenyl rings, or is -C(R11)-, -C(R11)2-, -C(=Z)-, =N- or -N(R12)-, Y either is no atom so that there is a direct bond between the two phenyl rings, or is =C(R13)-, -C(R13)2-, -C(=Z)-, =N- or -N(R14)-, Z is a divalent atom such as O, R1, R2, R3, R4, R5, R6, R7, R8 and, if present, R11, R12, R13 and R14 independently are hydrogen, or a hydrocarbyl group which may contain heteroatoms; or at least two of said R1, R2, R3, R4, R5, R6, R7, R8 or, if present, R11, R12, R13 or R14, together with the ring atoms of the ring system of formula (I) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (I), and wherein the ring system of formula (I) with said at least one fused further ring may further bear one to eight substituents, R1' to R8' each of which are independently selected from said same groups as R1 to R8; with the provisios that (i) at least one of said R1, R2, R3, R4, R5, R6, R7 or R8, or if present, at least one of said R1' to R8', is a hydrocarbyl which may contain hetero atoms; and (ii) at least one of said R1, R2, R3, R4, R5, R6, R7 or R8, or, if present, said R1' to R8', R11, R12, R13 or R14, is a hydrocarbyl which may contain heteroatoms and which has at least 6 non-H atoms; (iii) if any of said R1, R2, R3, R4, R5, R6, R7 or R8, and, if present, any of said R1' to R8', R11, R12, R13 or R14 is a hydrocarbyl group which may contain hetero atoms, is attached to an aromatic ring of the compound according to formula (I), said hydrocarbyl must be free of H-atoms in the alpha-position of the hydrocarbyl; and/or an aromatic compound with a. preferably consisting of the, structural unit according to the following formula (II) wherein one or more of the C-atoms in the naphtyi rings to which residue R1 R2, R3, R4, R5, R6, R7, or R8 is attached may also be a trivalent heteroatom such as N, in which case the respective residue R1, R2, R3, R4, R5, R6, R7, or R8 is not present; or at least two of said R1, R2, R3, R4, R5, R6, R7 or R8, together with the ring atoms of the ring system of formula (II) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (II), and wherein the ring system of formula (II) with said at least one fused further ring may further bear one to eight substituents R1' to R8'; and R1, R2, R3, R4, R5, R6, R7 and R8, and, if present, said R1' to R8', have the same meaning and fulfil the same provisios as indicated for formula (I).

IPC Classes  ?

• C08K 5/00 - Use of organic ingredients
• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

Abstract

A process for purifying a phenolic mixture, which process comprises as a first step, providing a phenolic feed containing phenol, water and at least one further organic or acidic component, and as a second step, separating the phenolic feed by distillation into a base fraction, an intermediate fraction and a first overhead stream, conducting the first overhead stream through at least one condenser to an condensate drum 10 in which at least one first condensate and at least one first uncondensed fraction are formed, recycling at least a portion of the first condensate to the distillation; conducting the first uncondensed fraction to a second condenser wherein a second condensed fraction and a second uncondensed fraction are formed; removing at least a portion of the second uncondensed fraction; recycling at least a portion of the second condensed fraction to the condensate drum 10, removing at least a portion of said first and/or second condensed fraction.

IPC Classes  ?

• C07C 37/74 - Separation; Purification; Stabilisation; Use of additives by physical treatment by distillation
• C07C 39/04 - Phenol

Abstract

The present invention provides a two-step process and an apparatus for removing hydrocarbons from an aqueous stream will typically contain 2 to 15 wt% of two or more hydrocarbons ( such as phenol, cumene, AMS, 2- methybenzofuran, mesityloxide or benzaldehyde or other impurities from the cleavage reaction of CHP), however predominantly it contains phenol. A first portion of the hydrocarbons (typically hydrocarbons comprising C and H only) is removed in a first step by adding an eluent, preferably cumene, typically in an amount of 0.5-5w%, and a second portion of the hydrocarbons (typically phenol) is removed in a second step. After adding the eluent the mixture settles into two phases. The hydrocarbon stream is collected and the phenol-containing water stream is fed into a heated column where the mixture is separated as top and bottom portions to be individually collected. The level of phenol in waste water to be discharged to the sewers should be less than 1 ppm so a bioreactor may be employed as a final treatment step.

IPC Classes  ?

• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• C02F 1/26 - Treatment of water, waste water, or sewage by extraction
• C07C 37/72 - Separation; Purification; Stabilisation; Use of additives by physical treatment by liquid-liquid treatment

Abstract

A process for the removal of by-products from a phenolic mixture, which process comprises the following steps: subjecting a phenolic mixture to extractive distillation to produce an initial phenolic mixture, contacting said initial phenolic mixture containing phenol and one or more by products with a catalyst to produce a first purified phenol product mixture, and distilling the first purified phenol product mixture to produce a second purified phenol product mixture; wherein the extractive distillation is carried out in two columns, a higher pressure column and a lower pressure column.

IPC Classes  ?

• C07C 37/80 - Separation; Purification; Stabilisation; Use of additives by physical treatment by distillation by extractive distillation
• C07C 39/04 - Phenol

Abstract

The present invention concerns a process for removing impurities from cumene to be used in phenol production, which process comprises providing a cumene feed containing cumene as well as phenol and other acidic components, mixing the cumene feed with an aqueous alkaline solution containing alkaline compounds to form a first aqueous cumene mixture, separating the aqueous solution from the first aqueous cumene mixture to provide a first purified cumene stream, mixing the first purified cumene stream with water to form a second aqueous cumene mixture, separating water from the second aqueous cumene mixture to provide a second purified cumene stream, and recovering the second purified cumene stream. The resulting cumene stream is particularly suitable for use in a dry oxidation process.

IPC Classes  ?

• C07C 7/10 - Purification, separation or stabilisation of hydrocarbons; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
• C07C 15/085 - Isopropylbenzene

Abstract

The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer (s), comprising one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerization particles, which reactor system comprises at least one fluidized bed unit and at least one a moving bed unit, wherein the fluidized bed unit comprises means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein in the fluidized bed unit is positioned shielding means such that via the outlet of the moving bed unit inflow of fluidization gas is inhibited and outflow of polymerization particles allowed and to a process and use thereof.

IPC Classes  ?

• B01J 8/08 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
• B01J 8/12 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
• B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
• B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Abstract

The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer (s), comprising one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles, which reactor system comprises at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit comprises means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are directly connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for pneumatically displacing polymer particles from the moving bed unit into the fluidized bed unit.

IPC Classes  ?

• B01J 8/08 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
• B01J 8/12 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
• B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
• B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Abstract

The present invention concerns a process for the recoveryoforganic compounds from a wastewater stream resulting from the introduction of an aqueous solution to a neutralized phenoliccleavage product mixture and from the purification of acetone, which process comprises adding an eluent to the wastewater stream, thereby forming an aqueous mixture, subsequently conducting the aqueous mixture into a separation vessel (1), wherein it is allowed to settle into two phases, which form a stream of organic compounds and a water stream, subsequently collecting the stream of organic compounds, and conducting the water stream into a separation column (2) for further separation, separating the water stream in the column using heat to form an overhead portion and a bottoms portion, and collecting the overhead portion as well as the bottoms portion.

IPC Classes  ?

• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• C02F 1/26 - Treatment of water, waste water, or sewage by extraction

Abstract

The invention is directed to a process for the treatment of plastic material comprising a) providing a liquid; b) contacting the plastic material with the liquid; c) keeping the plastic material in the liquid at Tb-25°C to Tb of the liquid, wherein Tb is the boiling point of the liquid at the applied pressure; and d) removing the plastic material from the liquid. Furthermore, the invention is directed to the use of a liquid for the treatment of plastic material and to a plant for treating plastic material with a liquid.

IPC Classes  ?

• B29B 9/16 - Auxiliary treatment of granules
• B29C 71/00 - After-treatment of articles without altering their shape; Apparatus therefor
• C08F 6/00 - Post-polymerisation treatments

Abstract

The present invention relates to a heterophasic polypropylene resin comprising a propylene homo- or copolymer matrix (A) and an ethylene-propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene at 25°C (XCU) with an intrinsic viscosity of 1.5 dl/g or less, determined according to DIN EN ISO 1628-1 and -3 and an amount of propylene monomer units of at least 95 mol%, and a fraction soluble in p-xylene at 25°C (XCS) with an intrinsic viscosity of 1.5 to 3.0 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of propylene monomer units of 50 to 75 mol%, and a MFR (2.16 kg, 230°C) of more than 100 g/10 min, determined according to ISO 1133, a heterophasic polypropylene composition comprising such a resin, a process for preparing that resin, and an article made thereof.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers

Abstract

The present invention relates to a heterophasic polypropylene resin comprising a polypropylene homo- or copolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene (XCU) at 25°C with an intrinsic viscosity of 2.0 dl/g or less, determined according to DIN EN ISO 1628-1 and -3, and a fraction soluble in p-xylene (XCS) at 25°C having an intrinsic viscosity of 2.0 to 4.5 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of ethylene monomer units of 60 to 85 mol%, a heterophasic polypropylene composition comprising such a resin, a process for preparing that resin, and an article made thereof.

IPC Classes  ?

• C08F 297/08 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
• C08F 2/00 - Processes of polymerisation
• C08L 23/10 - Homopolymers or copolymers of propene

Abstract

Cable layer comprising a propylene polymer composition comprising (a) a propylene polymer (A) (b) an elastomeric copolymer (B) of propylene and at least one comonomer selected from the group consisting of ethylene, C4 α-olefin, C5 α-olefin, C6 α-olefin, C7 α-olefin, C8 α-olefin, C9 α-olefin and C10 α-olefin, and (c) units (C) derived from at least bifunctionally unsaturated monomer(s) (C) and/or at least multifunctionally unsaturated low molecular weight polymer(s) (C'), the units (C) being linked to the propylene polymer (A) and/or the elastomeric copolymer (B) wherein the gel content of the propylene polymer composition determined as the amount of polymer insoluble in boiling xylene is not more than 1 wt%.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
• H01B 7/295 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame using material resistant to flame
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The invention relates to a device and a method for impregnating filaments, wherein the filaments form a roving. The device comprises a barrel (10) having at least one groove (12) formed in circumferential direction of the barrel, an inner space formed along the centre axis of the barrel, and at least one recess (16) which forms a connection between the inner space and the groove. The recess includes a cylindrical section (16a), a conical section (16b) and a pocket section (16c). By means of said device and according to the method, a polymer material can be pressed successively from the inner space through at least the cylindrical section and the conical section into the groove to impregnate the filaments of the roving which is drawn through the groove.

IPC Classes  ?

• D01H 13/30 - Moistening, sizing, oiling, waxing, colouring, or drying yarns or the like as incidental measures during spinning or twisting
• B29B 15/12 - Coating or impregnating of reinforcements of indefinite length
• B29B 15/14 - Coating or impregnating of reinforcements of indefinite length of filaments or wires

Abstract

−1 at a temperature of 180° C. In certain embodiments, the strain hardening index is defined as the slope of a logarithm to the basis 10 of a tensile stress growth function as a function of a logarithm to the basis 10 of a Hencky strain for the range of Hencky strains between 1 and 3.

IPC Classes  ?

• C08F 110/06 - Propene
• C08F 210/00 - Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Abstract

The present invention relates to a composition comprising (i) a crosslinkable polyolefin with hydrolysable silane groups (A), (ii) a silanol condensation catalyst (B), and (iii) a silicon containing compound (C) according to the formula (R1)x[Si(R2)yR3)z]m (I) wherein R1, which may be the same or different if more than one such group is present, is a monofunctional, or, if m = 2, is a bifunctional, hydrocarbyl residue comprising from 1 to 100 carbon atoms and at least one heteroatom; R2, which may be the same or different if more than one such group is present, is a hydrocarbyloxy residue comprising from 1 to 100 carbon atoms; R3, is -R4SiR1pR2q, wherein p is 0 to 3, q is 0 to 3, with the proviso that p + q is 3, and R4 is -(CH2)rYs(CH2)t- where r and t independently are 1 to 3, s is 0 or 1 and Y is a difunctional heteroatomic group selected from -O-, -O-(CO)-, -NH-, -NH2, -NH-(CO)-NH2, -NH-(CO)-OCH3, an epoxy group, a carbamate group, -S-, -SO-, -SO2-, -NR-, -PR-, where R is a hydrocarbon or a hydrogen and where R1 and R2 are as previously defined; and x is 0 to 3, y is 1 to 4, z is 0 or 1, with the proviso that x + y + z = 4; and m = 1 or 2; to an article, in particular a wire or cable, comprising such a composition, and to the use of such a composition for the production of an article. The present invention further relates to the use of silicon containing compound (C) according to the formula (I) given above as a processing aid in the compounding of polyolefin compositions and as a surface smoothening agent in polyolefin compositions. Finally, the present invention relates to the use of a silicon containing compound (C) according to the formula (I) given above as a drying agent for polyolefin compositions, as a corrosion inhibitor in polyolefin compositions comprising a Brönsted acid and as a pH controlling agent in polymer compositions comprising a Brönsted acid.

IPC Classes  ?

• C08K 5/00 - Use of organic ingredients
• C08K 5/5415 - Silicon-containing compounds containing oxygen containing at least one Si—O bond

Abstract

A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m3, and containing at least one α-olefin comonomer in addition to ethylene comprising: (A) less than 41 wt% of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one α-olefin; and (B) more than 59 wt% of a higher molecular weight component being a copolymer of ethylene and at least one α-olefin having a density in the range 902 to 912 kg/m3; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.

IPC Classes  ?

• C08L 23/08 - Copolymers of ethene
• C08J 5/18 - Manufacture of films or sheets

Abstract

Use of a Ziegler-Natta procatalyst which contains a trans-estehfication product of a lower alcohol and a phthalic ester for the production of reactor grade thermoplastic polyolefins with improved paintability, characterized in that the procatalyst used has been prepared by a) reacting a spray crystallized or emulsion solidified adduct of MgCl2 and a C1-C2 alcohol with TiCI4 b) reacting the product of stage a) with a dialkylphthalate of formula (I): wherein R1' and R2' are independently at least a C5 alkyl under conditions where a transesterification between said C1 to C2 alcohol and said dialkylphthalate of formula (I) takes place to form the internal donor c) washing the product of stage b) or d) optionally reacting the product of step c) with TiCI4, as well as reactor grade thermoplastic polyolefins prepared by using the above described Ziegler-Natta procatalyst, use of these reactor grade thermoplastic polyolefins, molded articles produced from them and a method to improve paintability and/or surface quality of reactor grade thermoplastic polyolefin resin articles.

IPC Classes  ?

• C08F 10/06 - Propene
• C08F 4/651 - Pretreating with non-metals or metal-free compounds

Abstract

A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m3, and containing at least one α-olefin comonomer in addition to ethylene comprising: (A) 30 to 60 wt% of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one α-olefin; and (B) 70 to 40 wt% of a higher molecular weight component being a copolymer of ethylene and at least one α-olefin, said α-olefin being the same or different from any α-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butene alone; wherein the multimodal LLDPE has a dart drop of at least 700 g; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.

IPC Classes  ?

• C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• C08F 2/00 - Processes of polymerisation
• C08F 297/08 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins

Abstract

The invention relates to a novel process for producing coloured polypropylene compositions having a high content of β-modification, wherein polypropylene is melt blended with at least one inorganic pigment and at least one β-nucleating agent, wherein a1 ) polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain a coloured polypropylene and a2) the coloured polypropylene is melt blended with at least one β-nucleating agent or with a second concentrate comprising the at least one β-nucleating agent to obtain the coloured β- nucleated polypropylene composition or b1 ) polypropylene is melt blended with at least one β-nucleating agent or with a second concentrate comprising the at least one β-nucleating agent to obtain a β-nucleated polypropylene and b2) the β-nucleated polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain the coloured β- nucleated polypropylene composition or c) a third concentrate is produced by melt blending a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one β-nucleating agent and the polypropylene is melt blended with the third concentrate to produce the coloured β-nucleated polypropylene composition or d) a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one β-nucleating agent are melt blended with the polypropylene to obtain the coloured β-nucleated polypropylene composition.

IPC Classes  ?

• C08F 210/06 - Propene
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 5/00 - Use of organic ingredients
• C08L 23/10 - Homopolymers or copolymers of propene
• F16L 9/12 - Rigid pipes of plastics with or without reinforcement

Abstract

Catalyst in form of solid particles, wherein the particles - have a specific surface area of less than 20 m2/g, comprise a transition metal compound which is selected from one of the groups 4 to 10 of the periodic table (IUPAC) or a compound of actinide or lanthanide, comprise a metal compound which is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and - comprise solid material, wherein the solid material • does not comprise catalytically active sites, • has a specific surface area below 500 m2/g, and • has a mean particle size below 100.

IPC Classes  ?

• C08F 4/02 - Carriers therefor
• C08F 4/651 - Pretreating with non-metals or metal-free compounds
• C08F 4/654 - Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
• C08F 10/06 - Propene

Abstract

The present invention relates to a propylene random copolymer, comprising comonomers selected from the group consisting of ethylene, C4 to C20 alpha-olefins, and any combination thereof, wherein the propylene random copolymer (a) has a comonomer content of at least 3.5 wt.-%, based on the weight of the propylene random copolymer, (b) has a randomness of at least 30 %, and (c) is prepared in the presence of a catalyst system comprising solid catalyst particles, wherein the solid catalyst particles (cl) have a specific surface area of less than 20 m2/g, (c2) comprise a transition metal compound which is selected from one of the groups 4 to 10 of the periodic table or a compound of actinide or lanthanide, (c3) comprise a metal compound which is selected from one of the groups 1 to 3 of the periodic table, and (c4) comprise inclusions not having catalytically active sites.

IPC Classes  ?

• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• C08F 210/06 - Propene

Abstract

A process for the preparation of a propylene random copolymer, wherein propylene is polymerised with ethylene and/or a C4-C20 alpha-olefin in the presence of a catalyst system comprising solid catalyst particles, wherein the solid catalyst particles (a) have a specific surface area of less than 20 m2 /g, (b) comprise a transition metal compound which is selected from one of the groups 4 to 10 of the periodic table or a compound of actinide or lanthanide,10 (c) comprise a metal compound which is selected from one of the groups 1 to 3 of the periodic table, and (d) comprise inclusions not having catalytically active sites.

IPC Classes  ?

• B01J 35/08 - Spheres
• C08F 4/651 - Pretreating with non-metals or metal-free compounds
• C08F 210/06 - Propene

Abstract

The invention is directed to a process for the manufacture of heterophasic propylene copolymer compositions comprising the steps of forming a propylene polymer matrix in at least one slurry reactor and optionally in at least one gas phase reactor and subsequently forming in at least one gas phase reactor an elastomeric copolymer by copolymerizing propylene with ethylene and/or with another α-olefm in the presence of said matrix, wherein the polymerization is carried out in the presence of a catalyst system comprising a catalyst in form of solid particles, said particles (a) have a surface area of less than 20 m2/g (b) comprise a transition metal compound of groups 4 to 10 of the periodic table or a compound of actinide or lanthanide, (c) comprise a metal compound of groups 1 to 3 of the periodic table, and (d) comprise inclusions not comprising catalytically active sites.

IPC Classes  ?

• C08F 4/02 - Carriers therefor
• C08F 4/651 - Pretreating with non-metals or metal-free compounds
• C08F 4/654 - Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
• C08F 110/06 - Propene
• C08F 2/00 - Processes of polymerisation

Abstract

The present invention concerns an improved glass fiber reinforced polypropylene composition as well as articles formed from this composition, wherein the composition, comprises a) More than 15-wt% glass fibers, and b) a specific heterophasic polypropylene composition with an at least bimodal disperse phase.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Abstract

The present invention relates to a polyolefin composition comprising (v) a crosslinkable polyolefin with hydrolysable silane groups (A), (vi) a dihydrocarbyl tin dicarboxylate (B) as a silanol condensation catalyst according to the following formula (I): wherein R1 and R2 independently are hydrocarbyl groups having at least 6 carbon atoms, and R3 and R4 independently are hydrocarbyl groups having at least 8 carbon atoms, to a wire or cable comprising a layer made of such a composition, and to the use of such a composition for the production of a layer of a cable.

IPC Classes  ?

• C08K 5/098 - Metal salts of carboxylic acids
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08L 43/04 - Homopolymers or copolymers of monomers containing silicon
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

Abstract

The invention provides propylene polymer comprising at least 80 mol % units derived from propylene and less than 0.5 mol% units derived from a tertiary diene wherein said tertiary diene is not a 1,4-diene said polymer comprising 1-50 tertiary double bonds per 10,000 carbon atoms of the main chain of said polymer. The polymer is obtained using a Ziegler Natta catalyst. The invention further provides a long chain branched propylene polymer obtainable from the afore-mentioned propylene polymer comprising tertiary double bonds.

IPC Classes  ?

• C08F 210/06 - Propene

Abstract

This invention relates to an ethylene polymer having a weight average molecular weight of at least 120,000 comprising 1 -50 tertiary double bonds per 10,000 carbon atoms.

IPC Classes  ?

• C08F 210/02 - Ethene
• C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• C08F 210/18 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
• C08F 236/20 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds unconjugated

Abstract

The invention relates to silane-functionalised polyolefin compositions, to silane- crosslinkable polyolefin compositions and to silane-crosslinked polyolefin compositions, to a preparation process thereof, to their use for producing products and to the obtained products, to their use for W&C applications, preferably for producing one or more layers of a cable comprising said silane-functionalised polyolefin composition, as well as to silane-crosslinked cables comprising polyolefin compositions.

IPC Classes  ?

• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon

Abstract

Heterophasic propylene copolymer (HECO) comprising wherein the heterophasic propylene copolymer (HECO) is β-nucleated and the elastomeric phase has an intrinsic viscosity measured in tetraline at 135 °C of equal or below 4.0 dl/g.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• C08K 5/00 - Use of organic ingredients

Abstract

The invention relates to silane-functionalised polyolefin compositions, to silane-crosslinkable polyolefin compositions and to silane-crosslinked polyolefin compositions, to a preparation process thereof, to their use for producing products and to the obtained products, to their use for W&C applications, preferably for producing one or more layers of a cable comprising said silane-functionalised polyolefin composition, as well as to silane-crosslinked cables comprising polyolefin compositions.

IPC Classes  ?

• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon

Abstract

The invention relates to silane-functionalised polyolefin compositions, to silane-crosslinkable polyolefin compositions and to silane-crosslinked polyolefin compositions, to a preparation process thereof, to their use for producing products and to the obtained products, to their use for W&C applications, preferably for producing one or more layers of a cable comprising said silane-functionalised polyolefin composition, as well as to silane-crosslinked cables comprising polyolefin compositions.

IPC Classes  ?

• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon

Abstract

The present invention relates to a polymer composition, comprising: (i) a polypropylene matrix; (ii) a first elastomeric phase dispersed within the matrix and having a glass transition temperature Tg1, measured with dynamical mechanical thermal analysis according to ISO 6721-2, wherein the first elastomeric phase comprises an ethylene copolymer having comonomer units derived from C3 to C8 olefins; (iii) a second elastomeric phase dispersed within the matrix, wherein the second elastomeric phase is crosslinked and has a glass transition temperature Tg2, measured with dynamical mechanical thermal analysis according to ISO 6721-2, within the range of - 70°C to -90°C, wherein the difference between Tg1 and Tg2 is at least 15°C and Tg1 is higher than Tg2.

IPC Classes  ?

• C08L 23/08 - Copolymers of ethene
• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/12 - Polypropene
• C08L 23/14 - Copolymers of propene
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The present invention relates to A semiconductive polymer composition comprising (a) from 30 to 90 wt% of a polymer component, (b) from 10 to 60 wt% of carbon black and (c) from 0 to 8 wt% additives, based on the total semiconductive polymer composition, and wherein the composition comprises, when measured in accordance with the Surface Smoothness Analysis (SSA) method using a tape sample consisting of said semiconductive polymer composition as defined under 'Determination Methods', less than 23 particles per m2 having a width of larger than 150 μm at the half height of said particle protruding from the surface of the tape sample, less than 10 particles per m2 having a width of larger than 200 μm at the half height of said particle protruding from the surface of the tape sample, and preferably, about 0 particles per m2 having a width of larger than 500 μm at the half height of said particle protruding from the surface of the tape sample, to a process for preparing the semiconductive polymer composition, its use and cables comprising the semiconductive polymer composition.

IPC Classes  ?

• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon
• C08K 3/04 - Carbon
• C08J 3/20 - Compounding polymers with additives, e.g. colouring

Abstract

Propylene polymer composition comprising a polypropylene (A), an elastomeric copolymer (B) of ethylene and at least one α-olefin comonomer selected form the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene and 1-octene, and an ethylene C2 to C8 alkyl acrylate copolymer (C) wherein the composition has a strain hardening SH3.0/2.5 (at a Hencky strain rate of 3 s-1) of at least 0.5.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• C08L 23/08 - Copolymers of ethene
• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers

Abstract

A polymer composition in the form of pellets comprising: A) 10 to 90 wt% of an mLLDPE polymer having a density of less than 940 kg/m3; B) 10 to 90 wt % of a multimodal LLDPE polymer having a density of less than 940 kg/m3; C) 1 to 50 wt% of a LDPE polymer.

IPC Classes  ?

• B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• C08J 5/18 - Manufacture of films or sheets
• C08L 23/08 - Copolymers of ethene

Abstract

Novel polyolefin compositionscomprising (A) a first propylene-ethylene random copolymerand (B) a second propylene-ethylene random copolymer, wherein the polyolefin composition has an ethylene content CMAB of 1 - 10wt% and an MFR(AB) of 3 - 20g/10 min with the proviso that CMAB > CMA and MFR(A)/MFR(AB) >1.45 and where the polyolefincomposition further has a randomness R of the ethylene distribution in the polymer chain of ≥ 0.945. Articles made from the novel polyolefin compositions have excellent optical properties even after subjecting them to a heat sterilisation step.

IPC Classes  ?

• C08L 23/14 - Copolymers of propene
• C08J 5/18 - Manufacture of films or sheets
• C08F 210/06 - Propene

Abstract

The present invention relates to a cable comprising one or more insulated conductors which are embedded in a bedding composition, which comprises a) a polymer resin (A) and b) an inorganic filler (B), wherein the polymer resin (A) comprises an olefin homo- and/or copolymer (A. 1) which has a weight average molecular weight Mw of 10,000 g/mol or more and a molecular weight distribution MWD of 4.5 or lower and, in a second aspect, to a cable comprising one or more insulated conductors which are embedded in a bedding composition, which comprises a) a polymer resin (A) and b) an inorganic filler (B), wherein the heat release rate HRR of the composition at any time within the period from 0 s to 200 s after ignition does not exceed a maximum of 80 kW measured with cone calorimetry according to ISO 5660-1. The bedding may also comprise a bedding layer provided between said one or more insulated conductors and an outer sheath layer, wherein the bedding layer comprises the above bedding composition.

IPC Classes  ?

• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

Abstract

A complex comprising a ligand of formula (I), wherein each R1, which may be the same or different, is hydrogen, an optionally substituted C1-20 hydrocarbyl group, N(R5)2, silyl, siloxy; an optionally substituted heteroaryl group, an optionally substituted heterocyclyl group or two R1 groups on adjacent carbon atoms taken together may form an optionally substituted 5- to 8-membered fused ring; each R2, which may be the same or different is hydrogen, is hydrogen, an optionally substituted C1-20 hydrocarbyl group, N(R5)2, silyl, siloxy; an optionally substituted heteroaryl group, or an optionally substituted heterocyclyl group; R3, which binds to the 6-membered ring of the indenyl group, is -(Si(R5)2)p-, where p is 1 or 2, -(C(R5)2 )n- where n is an integer of 2 or more; each R4 which may be the same or different, is hydrogen, an optionally substituted C1-20 hydrocarbyl group, N(R5)2, silyl, siloxy, an optionally substituted heteroaryl group, an optionally substituted heterocyclyl group or two R4 groups on adjacent carbon atoms taken together can form an optionally substituted 5- to 8-membered fused carbon ring; each R5, which may be the same or different, is hydrogen, an optionally substituted C1-20 hydrocarbyl group, or two R5 groups taken together can form an optionally substituted 5- to 8-membered ring; a is 0 to 3; b is 0 to 3; c is 0 to 4; complexed to a metal ion, M.

IPC Classes  ?

• C08F 4/656 - Pretreating with metals or metal-containing compounds with silicon or compounds thereof
• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• C07F 17/00 - Metallocenes
• C07C 13/465 - Indenes; Completely or partially hydrogenated indenes

Abstract

The present invention relates to an equipment and method for producing polymer pellets which comprise one or more polymer components and one or more further components, wherein in said process at least one of said one or more further components is incorporated into pellets by applying a liquid, which comprises said at least one component, onto said pellets.

IPC Classes  ?

• B29B 9/16 - Auxiliary treatment of granules
• B29B 7/94 - Liquid charges
• H01B 13/14 - Insulating conductors or cables by extrusion
• B01F 5/04 - Injector mixers
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• B01F 5/24 - Falling particle mixers with repeated action
• B01J 2/00 - Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
• B01F 3/12 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed liquids with solids

Abstract

Solid Ziegler-Natta catalyst system for the (co)polymerisation of ethylene, said catalyst system comprising 1 ) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate complex of the formula (I): Mg(OR1)2-n(R1)n, wherein each R1 independently represents a C1-C20 hydrocarbyl group and 0 < n < 2 and may or may not be an integer; b) an aluminium compound of the formula (II) AI(R1)mX3-m, wherein each R1 independently represents an alkyl of up to 6 carbon atoms; each X is independently a halogen; 0 < m < 3 and m and may or may not be an integer c) a vanadium compound and optionally a titanium compound in portions such as to provide a molar ratio of V:Ti from 100:0 to 5:95 and d) optionally one or more organic ligand compound(s) which is/are selected from organic compounds comprising a cyclopentadienyl anion backbone, in order to yield the solid procatalyst and 2) one or more organometallic cocatalyst(s) of the formula (III) wherein each R is independently a C1-C20-alkyl group, 0 < x ≤ 2; 1 ≤ y < 3; 0 < z < 2 and x + y + z = 3, x, y and z may or may not be an integer, and its use for polymerisation of polyethylene and any co- or terpolymers thereof.

IPC Classes  ?

• C08F 4/68 - Vanadium, niobium, tantalum, or compounds thereof
• C08F 4/685 - Vanadium or compounds thereof in combination with titanium or compounds thereof
• C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers

Abstract

The invention relates to the use of a polyolefin composition comprising a propylene- ethylene random copolymer having an ethylene content of 0.5 - 10 wt% and a randomness R of the ethylene distribution in the polymer chain of ≥ 0.945 for the production of articles having high sterilisation resistance.

IPC Classes  ?

• C08F 210/06 - Propene
• C08L 23/14 - Copolymers of propene
• A61J 1/00 - Containers specially adapted for medical or pharmaceutical purposes
• A61L 2/04 - Heat

Abstract

The present invention provides a cap or closure comprising a polypropylene composition, wherein said composition comprises: (i) a random propylene ethylene copolymer having an ethylene content of 3.3-7 %wt, and (ii) an additive selected from an antistatic agent, an antioxidant, an acid scavenger and a nucleating agent.

IPC Classes  ?

• B65D 41/04 - Threaded or like caps or cap-like covers secured by rotation
• C08K 5/00 - Use of organic ingredients
• C08L 23/10 - Homopolymers or copolymers of propene

Abstract

The present invention relates to a heterophasic polypropylene composition which is sterilisable and has a high impact strength as well as improved optical properties both before and after a step of heat sterilisation. Furthermore, the present invention relates to a film comprising said heterophasic polypropylene composition, and to the use of said composition for the production of a film. Finally, the present invention is directed to the use of such a film as a packaging material for medicals and/or food. The heterophasic polypropylene composition comprises a matrix resin which comprises (A) a propylene homopolymer and (B) a propylene random copolymer; and a dispersed phase which comprises (C) an ethylene-propylene rubber wherein (i) the melting point of the heterophasic polypropylene composition is at least 145°C and (ii) the content of comonomer in the matrix resin is at least 0.5 wt% based on the entire matrix resin without any additives.

IPC Classes  ?

• C08L 23/08 - Copolymers of ethene
• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/12 - Polypropene
• C08L 23/14 - Copolymers of propene
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
• C08J 5/18 - Manufacture of films or sheets

Abstract

The invention relates to a novel polyolefin composition which is suitable for producing drawn tapes, fibres and filaments which have improved mechanical properties. The composition comprises A) 2 30wt% of a propylene copolymer which comprises a a) random propylene copolymer having a content of ethylene and/or C 4-C 8a-olefin of 0.5 to 12wt% and optionally an b) ethylene-a-olefin rubber, B) 70 98wt% of a high density polyethylene having a density of 930 to 965kg/m3 and a MFR (190°C/2.16kg) of 0.3 to 20g/10min.

IPC Classes  ?

• C08L 23/08 - Copolymers of ethene
• D01F 6/46 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins

Abstract

Use of a polymer composition comprised of (i) a propylene/butene terpolymer which is comprised of 86.0 - 98.0 wt% of propylene 2.0 - 12.0 wt% of butene and 0.1 - less than 1.0 wt% of ethylene and (ii) 0.001 - 1.0 wt% of one or more phosphorous based and/or polymeric α-nucleating agents for the production of stehlizable water or air quenched blown films which have the following properties: a) a haze according to ASTM D 1003-92 for a 50 μm film of less than 8% before and after steam sterilization at 121°C for 30 minutes and b) 20° Gloss according to DIN 67 530 for a 50 μm film of at least 55% be fore steam sterilization at 121°C for 30 minutes and of at least 60% af ter steam sterilization at 121°C for 30 minutes.

IPC Classes  ?

• C08L 23/14 - Copolymers of propene
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 23/20 - Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms

Abstract

A process for improving the impact resistance of polyolefins without compromising stiffness and processability by adding core-shell nanoparticles comprising a mineral core and a polymeric shell which is coupled chemically to the core.

IPC Classes  ?

• C08K 9/08 - Ingredients agglomerated by treatment with a binding agent

Abstract

The present invention relates to a polyolefin composition comprising (a) a polyolefin (A), (b) a vitamin E-type stabiliser (B) according to formula (I), wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, and (c) a phenolic stabilizer (C) according to formula (II), wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups; and X1, X2, and X3 independently are H or OH, with the provisio that at least one of X1, X2 and X3 is OH, and (d) optionally, an UV stabilizer, to an article comprising such a polyolefin composition and to the use of such a composition for the production of an article.

IPC Classes  ?

• C08K 3/04 - Carbon
• C08K 5/00 - Use of organic ingredients
• C08K 5/13 - Phenols; Phenolates
• C08K 5/1545 - Six-membered rings
• C08K 5/34 - Heterocyclic compounds having nitrogen in the ring
• F16L 9/12 - Rigid pipes of plastics with or without reinforcement

Abstract

The invention relates to a process for preparing a crosslinked cable, comprising: -applying one or more layers comprising a polymer composition on a conductor, wherein at least one layer comprises one or more free radical generating agents, - crosslinking by radical reaction said at least one layer comprising said free radical generating agent(s), - cooling the obtained crosslinked cable in pressurized conditions.

IPC Classes  ?

• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
• C08K 5/00 - Use of organic ingredients
• C08K 5/14 - Peroxides
• H01B 13/14 - Insulating conductors or cables by extrusion

Abstract

Polypropylene composition comprising a propylene homopolymer (A) and a random propylene-butene copolymer (B) or a random propylene-ethylene copolymer (B ) wherein the polypropylene composition is ß-nucleated.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/14 - Copolymers of propene
• C08K 5/00 - Use of organic ingredients
• F16L 9/12 - Rigid pipes of plastics with or without reinforcement

Abstract

The invention relates to a process for preparing a crosslinked cable, comprising: -applying one or more layers comprising a polymer composition on a conductor, wherein at least one layer comprises one or more free radical generating agents, - crosslinking by radical reaction said at least one layer comprising said free radical generating agent(s), - cooling the obtained crosslinked cable in pressurized conditions, and - reducing or removing the content of volatile decomposition products(s), which are originating from optionally in elevated temperature, from the crosslinked cable obtained from cooling and recovery step.

IPC Classes  ?

• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
• C08K 5/00 - Use of organic ingredients
• C08K 5/14 - Peroxides
• H01B 13/14 - Insulating conductors or cables by extrusion

Abstract

The invention relates to a method for modifying a polymer composition, to modified polymer compositions, to an article, preferably wire or cable, comprising said modified polymer composition, to a process for preparing an article, preferably a wire or cable, to the use of said modified polymer in one or more layers of a wire or cable, as well as to a compound for use as a radical generating agent for modifying a polymer composition.

IPC Classes  ?

• C08K 5/14 - Peroxides

Abstract

The invention relates to a method for modifying a polymer composition, to modified polymer compositions, to an article, preferably wire or cable, comprising said modified polymer composition, to a process for preparing an article, preferably a wire or cable, to the use of said modified polymer in one or more layers of a wire or cable, as well as to a compound for use as a radical generating agent for modifying a polymer composition.

IPC Classes  ?

• C08K 5/14 - Peroxides

Abstract

The present invention provides a polyolefin composition comprising: (a) a propylene homopolymer component (A), and (b) a propylene random copolymer component (B) comprising repeating units derived from at least one comonomer selected from the group consisting of ethylene and α-olefin monomers, wherein the random propylene copolymer component (B) has an MFR2 of from 0.5 to 15, and wherein the propylene homopolymer component (A) may comprise up to 1 -wt% of at least one comonomer selected from the group consisting of ethylene and α-olefin monomers, and wherein the MRF2 ratio of component (A)/component (B) is equal to or greater than 5. The present invention further provides a heterophasic polyolefin composition comprising a mixture of the above polyolefin composition as the matrix phase, and a rubber component dispersed therein.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/14 - Copolymers of propene
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers

Abstract

This invention relates to a process for the preparation of an olefin polymerization catalyst, to the use of the catalyst in olefin polymerization and to the catalyst and polymers obtained. In particular, the invention relates to the preparation of a catalyst comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) by a semi-continuous or continuous process.

IPC Classes  ?

• C08F 4/602 - Component covered by group with an organo-aluminium compound
• C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
• B01J 31/22 - Organic complexes

Abstract

The present invention relates to a multimodal polyethylene copolymer resin composition comprising (a) a lower molecular weight (LMW) ethylene polymer fraction and (b) a higher molecular weight (HMW) ethylene copolymer fraction, wherein the higher molecular weight (HMW) ethylene copolymer fraction comprises (b1) a higher molecular weight (HMW) ethylene copolymer subfraction having a weight average molecular weight at least 2 times the weight average molecular weight (Mw) of said multimodal polyethylene copolymer resin composition, which (b1) higher molecular weight (HMW) ethylene copolymer subfraction amounts from about 1-30 wt% of the total amount of the multimodal polyethylene copolymer resin composition and comprises comonomers in amount of at least about 1 wt% of the total amount of comonomer present in said multimodal polyethylene copolymer resin composition, a process for its preparation and its use.

IPC Classes  ?

• C08L 23/04 - Homopolymers or copolymers of ethene
• C08L 23/08 - Copolymers of ethene
• C08F 10/02 - Ethene

Abstract

The present invention relates to a process for the production of propylene copolymers wherein in a first step an olefin polymerisation catalyst comprising a solid catalyst component is subjected to a prepolymerisation reaction in a prepolymerisation reactor, in which propylene monomers are present in an amount of 98.0 to 99.9 mol% and further alpha-olefin monomers other than propylene are present in an amount of 0.1 to 2.0 mol%, based on the combined amount of propylene and further alpha- olefin monomers, so that a prepolymer is produced on the catalyst in an amount of 10 to 1000 g per g of the solid catalyst component, and in a second, subsequent step propylene and further alpha-olefin monomers other than propylene are copolymerised in the presence of the prepolymerised catalyst produced in the first step so that a propylene copolymer is obtained which contains at least 0.1 mol% of alpha-olefin units other than propylene, to propylene copolymers obtainable by such a process and to the use of a prepolymerised catalyst in such a process.

IPC Classes  ?

• C08F 210/06 - Propene
• C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers

Abstract

Polymer composition comprising polypropylene with a branching index g' of 0.9 or less and a low density polyethylene (LDPE).

IPC Classes  ?

• C08L 23/06 - Polyethene
• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/12 - Polypropene
• C08J 5/18 - Manufacture of films or sheets
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof

Abstract

Polymer composition comprising polypropylene with a branching index g' of 0.9 or less, a low density polyethylene (LDPE) and a heterophasic propylene copolymer.

IPC Classes  ?

• C08L 23/06 - Polyethene
• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 23/12 - Polypropene
• C08J 5/18 - Manufacture of films or sheets
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof

Abstract

The invention provides a method for producing alpha-olefin polymer resins with improved fouling and sheeting properties including at least one slurry-phase polymerisation step, wherein the catalyst particles are contacted with a catalyst poisoning agent before contacting alpha-olefin monomers in said slurry phase polymerisation step.

IPC Classes  ?

• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• C08F 2/40 - Polymerisation using regulators, e.g. chain terminating agents using retarding agents
• C08F 2/00 - Processes of polymerisation

Abstract

A polypropylene copolymer comprising monomer units of propylene and at least one other α-olefin as a comonomer, wherein (a) the weight ratio of the α-olefin to the sum of monomers present in said polypropylene copolymer (α-olefin/(α-olefin + propylene)) is at least 2.0 wt.-%, and (b) the temperature rising elution fractionation (TREF) curve of said propylene copolymer comprises at least two local maxima (i) one absolute maximum over 100 °C, and (ii) one relative maximum between 50 and 80 °C.

IPC Classes  ?

• C08F 210/06 - Propene
• C08F 4/646 - Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group
• C08F 4/654 - Pretreating with metals or metal-containing compounds with magnesium or compounds thereof

Abstract

Catalyst system comprising (a) a procatalyst composition comprising (i) a transition metal compound of Group 4 to 6 of the Periodic table (IUPAC, Nomenclature of Inorganic Chemistry, 1989), (i) M9Cl2 and (ii) an internal donor, wherein (iii) said internal donor comprises a dialkylphthalate of formula (ii) wherein R1 and R2 are independently a C1or C2 alkyl and (b) an external donor wherein the external donor has the formula (IV) R'R'Si(OCH2CH3)2 (IV) wherein R' and R' are identical or different hydrocarbon residues.

IPC Classes  ?

• C08F 4/646 - Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group
• C08F 4/651 - Pretreating with non-metals or metal-free compounds
• C08F 210/06 - Propene

Abstract

The present invention relates to polyolefin compositions comprising man-made cellulose fibers of very high modulus to improve the mechanical performance of said compositions while retaining a low density. The present invention further relates to a melt mixing process with controlled shear intensity and energy input especially suitable for the production of said compositions.

IPC Classes  ?

• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
• C08L 1/02 - Cellulose; Modified cellulose

Abstract

The present invention relates to a capacitor film comprising a biaxially oriented polypropylene wherein a) said polypropylene has a draw ratio in machine direction of at least 4.0 and a draw ratio in transverse direction of at least 4.0, and b) said polypropylene has an electrical breakdown strength EB63% according to IEC 60243-part 1 (1988) of at least 300 kV/mm at a draw ratio in machine direction and in transverse direction of 4.0.

IPC Classes  ?

• C08F 10/06 - Propene
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

Abstract

Method and apparatus for coating a pipe (2) or a pipe section with a layer of at least one polymer. The method comprises providing a pipe (2) or a pipe section having an outer surface defining the periphery of the pipe or pipe section; applying on the outer surface of the pipe or pipe section a layer of at least one polymer material in melt stage using a nozzle (3), which is mounted on a carriage capable of travelling along the periphery of the pipe (2) or pipe section; and moving the carriage along at least a part of the periphery during the application of the polymer material to form a layer on the surface of the pipe (2) or pipe section. The present invention is particularly useful for coating field joints in pipelines.

IPC Classes  ?

• F16L 58/18 - Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
• F16L 13/02 - Welded joints
• B29C 63/06 - Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles

Abstract

A pipe or a supplementary pipe article comprising a polyethylene composition comprising a base resin which comprises: (A) a first ethylene homo- or copolymer fraction having an MFR2 in the range of 300 to 700 g/10 min, and (B) a second ethylene homo- or copolymer fraction, wherein fraction (A) has a lower average molecular weight than fraction (B), wherein the base resin has a density in the range of 0.945 to 0.949 kg/cm3 and an MFR5 in the range of 0.2 to 0.4 g/10 min and a comonomer content of higher than 2.0 wt.-% and a SHI(2.7/210) in the range of 55 to 100.

IPC Classes  ?

• C08L 23/06 - Polyethene
• C08L 23/08 - Copolymers of ethene
• F16L 9/12 - Rigid pipes of plastics with or without reinforcement
• C08L 23/04 - Homopolymers or copolymers of ethene

Abstract

The present invention concerns a propylene copolymer composition, a molded article comprising the composition and the use of the propylene copolymer composition for preparing molded articles, preferably pipes.

IPC Classes  ?

• C08F 210/06 - Propene
• C08K 5/00 - Use of organic ingredients

Abstract

The present invention is directed to fibres, tapes or filaments comprising a polyethylene composition, to the preparation process thereof, to the use of a polyethylene composition, as well as articles comprising said fibres, tapes or filaments.

IPC Classes  ?

• D01F 6/46 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
• D01F 6/30 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
• D01F 6/04 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
• D01D 5/42 - Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films

Abstract

The present invention is directed to fibres, tapes or filaments comprising a multimodal polyethylene composition, to the preparation process thereof, to the use of a multimodal polyethylene composition, as well as articles comprising said fibres, tapes or filaments.

IPC Classes  ?

• D01F 6/04 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
• D01F 6/30 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent

Abstract

The present invention relates to a multilayer film structure suitable for agricultural use, which may be prepared by co-extrusion or lamination processes.

IPC Classes  ?

• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• C08J 5/18 - Manufacture of films or sheets

Abstract

The present invention provides laminated multilayer films comprising a multilayer film laminate on a substrate, wherein said multilayer film laminate comprises a multimodal polyethylene (PE) composition. The invention is further directed to a process for producing such laminated multilayer films as well as to articles comprising said laminated multilayer films.

IPC Classes  ?

• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins

Abstract

The invention relates to polypropylene films having improved optical properties, in particular a reduced orange peel. The films contain polypropylene with an MFR of 3 - 22 g/10 min (230 °C/2.16 kg), a polydispersity (Mw/Mn) ≤7, an XCS content of ≤ 25 wt% and a porous inorganic antiblocking agent.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• C08L 23/10 - Homopolymers or copolymers of propene
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 3/36 - Silica

Abstract

Use of polypropylene having long chain branching to broaden the processing window in the injection stretch blow moulding of at least one propylene polymer.

IPC Classes  ?

• B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
• B32B 1/08 - Tubular products
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• C08F 10/06 - Propene
• C08L 23/12 - Polypropene

Abstract

The present invention relates to a cable comprising one or more insulated conductors which are embedded in a bedding composition having improved flame retardancy. The bedding composition comprises a resin (A) and inorganic filler (B), which is a hydroxide or hydrated compound.

IPC Classes  ?

• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
• H01B 7/28 - Protection against damage caused by external factors, e.g. sheaths or armouring by moisture, corrosion, chemical attack or weather
• H01B 7/295 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame using material resistant to flame

Abstract

The present invention concerns a novel polymer composition comprising a specific combination of reinforcing agents. Due to the combination of inorganic reinforcing agents and organic reinforcing agents polymer compositions with a unique balance of properties can be obtained.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene

Abstract

A multimodal medium density polyethylene polymer obtainable using single site catalysis which comprises at least: (A) a lower molecular weight (LMW) polyethylene homopolymer component; and (B) a higher molecular weight (HMW) polyethylene copolymer component which is a copolymer of ethylene and at least one C3-12-alpha olefin; wherein said multimodal medium density polyethylene polymer has a density of 925 to 945 kg/m3 and a comonomer content of less than 2.5 mol%.

IPC Classes  ?

• C08L 23/06 - Polyethene
• C08L 23/08 - Copolymers of ethene
• C08J 5/18 - Manufacture of films or sheets