The invention relates to the use of a polysiloxane having a plurality of siloxane groups and at least one cyclic carboxylic anhydride group or the hydrolysis product thereof covalently linked to the polysiloxane, as a dispersing agent for solid particles in a non-aqueous composition.
A composite medium for collecting mineral particles in an aqueous slurry has a polymer substrate deposited or penetrated with an inorganic material and further coated with a hydrophobic material. The hydrophobic material can be a hydrophobic silane or a hydrophobic polymer such as polysiloxane. Alternatively, the inorganic material deposited substrate is first reacted with a reactive silane and then coated with a hydrophobic polymer. The polymer substrate can be in the form of a spherical bead, a small cube, a filter or a conveyor.
An apparatus for removing mineral particles from loaded engineered collection media includes one or more solvents with sufficiently low surface tension. The engineered collection media are made of a synthetic material and have a surface coated with a hydrophobic material to provide a chemical bond between the mineral particles and the surface. The solvents together with a releasing mechanism are arranged to disrupt the chemical bond. Preferably, a surfactant or a nonionic surfactant is also added to the solvents.
The present invention provides a polymer or oligomer comprising: (a) an oligomeric or polymeric core comprising carbon atoms and at least one of oxygen atoms and nitrogen atoms, and (b) at least three hydrocarbyl terminal and/or pending groups having 12 to 100 carbon atoms, wherein the hydrocarbyl groups are linked to the core via (c) a linking moiety comprising i) a urethane group and ii) a further group selected from urethane group, urea group, and biuret group. The present invention further relates to the use the polymer or oligomer for improving the cold flow properties of hydrocarbon based fluids, to a method of decreasing the amount of solid precipitate in a hydrocarbon based fluid, to a composition comprising the polymer or oligomer and a hydrocarbon based fluid, and to a process of preparing the polymer or oligomer.
The present invention relates to a urea and urethane group containing product comprising one or more species of formula (I) R1-O-(C=O)-NH-R2-NH-(C=O)-NH-R3-NH-[-(C=O)-NH-R4-NH-(C=O)-NH-R3- NH-]n-(C=O)-NH-R2-NH-(C=O)-O-R1 (I), wherein R1 independently represents a non-aromatic hydrocarbyl group having 14 to 30 carbon atoms; R2 independently represents alkyl-substituted aromatic hydrocarbyl groups having 7 to 12 carbon atoms; R3 independently represents hydrocarbyl groups having 2 to 36 carbon atoms, which can be interrupted by 1 to 17 ether oxygen atoms in case of aliphatic hydrocarbyl groups; R4 independently represents hydrocarbyl groups having 2 to 36 carbon atoms; n is an integer from 0 to 200; and wherein on average from 40 mol-% to 100 mol-% of all R3 and R4 groups contained in the one or more species of formula (I) are acyclic aliphatic hydrocarbyl groups which, in case of R3, can be interrupted by 1 to 17 ether oxygen atoms. The invention further relates to a method of manufacturing such product, liquid compositions containing such products and the use of the liquid compositions as rheology control additive, preferably as anti-settling agent. Furthermore, the present invention relates to a process for rheology adjustment, comprising the step of adding such liquid composition to a variety of compositions and formulations.
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The invention relates to a drilling fluid in the form of a water-in-oil (W/O) emulsion comprising at least components (A) to (D), wherein component (D) is at least one (meth)acrylic copolymer, which contains at least one of structural units (D1), (D2) and (D3) to introduce at least one hydroxyl and/or amino functionality into the copolymer and which further contains at least one structural unit (D4), a use of said(meth)acrylic copolymer as rheological agent in drilling fluids, which are water-in-oil (W/O) emulsions, as well as to a method of producing oil and/or natural gas or of preparing the production thereof comprising the step of using the inventive drilling fluid for generating and/or operating a drill hole.
An organoclay composition which is a mineral clay or mineral clay mixture that has been treated with at least organic quaternary ammonium compound and a synergist comprising (i) an amine salt of a trimer acid, and (ii) an amine salt of a monocarboxylic fatty acid. The monocarboxylic fatty acid may be (a) at least one saturated carboxylic acid; and/or (b) at least one unsaturated carboxylic acid.
Provided is use of a mixed mineral organoclay rheology additive. The additive comprises a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by combining an aqueous hormite clay slurry with an aqueous smectite clay slurry to form a combined clay slurry, treating the combined clay slurry with a quaternary alkyl-ammonium salt, and separating the resulting treated clay mixture from the aqueous medium. The hormite clay contains less than 3.0 % by weight of A1203, less than 1.0 % by weight of Fe203, and less than 3.5 % by weight of total A1203 and Fe203. The weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry. Also provided is use of the additive as a thickening agent in liquid compositions.
C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
C08J 3/20 - Compounding polymers with additives, e.g. colouring
Provided is use of mixed mineral organoclay rheology additive(s), including a quaternary alkyl- ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the slurries to form slurry (c), treating slurry (c) with quaternary alkyl-ammonium salt(s), separating the treated mixture from the aqueous medium, in which slurries (a) and (b) are formed by dispersing a fraction of hormite clay(s) or smectite clay(s), respectively, in an aqueous medium, the weight of the hormite clay content exceeds that of the smectite clay in slurry (c); and subjecting the dispersions to high speed fluid shear before and/or after step iii.; wherein the fraction of one or more hormite clays employed in forming slurry (a) has a defined integral breadth B, in a liquid composition comprising unsaturated polyester(s). Also provided is a process for producing a mixed mineral organoclay rheology additive.
C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
Provided is use of a mixed mineral organoclay rheology additive, which comprises a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by combining an aqueous hormite clay slurry with an aqueous smectite clay slurry to form a combined clay slurry, treating the combined clay slurry with a quaternary alkyl-ammonium salt, and separating the resulting treated mineral clay mixture from the aqueous medium. The weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry. The hormite clay exhibits a methylene blue exchange capacity below 20 mmol methylene blue per 100 g of the hormite clay in dry state. Also provided is a process for producing a mixed mineral organoclay rheology additive and the use of the additive as a thickening agent in liquid compositions.
The present application relates to a process of manufacturing specialized thickeners and the use of thus produced thickeners in high-viscosity non-aqueous formulations. The application particularly relates to the use of the thus produced thickeners in modifying the rheology of non- aqueous formulations. In this respect, provided is a reliable process of producing an organoclay based rheology additive with a higher performance compared to structurally related organoclay additives known from the state of the art, which show a universal versatility in various e.g. non- aqueous formulations. The mixed mineral organoclay rheology additives as produced according to the present invention are particularly suitable for thickening a broad variety of liquid compositions, and are apt to provide a superior viscosity to binder containing formulations.
C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
The invention relates to an emulsion containing or consisting of (A) 40.00 to 97.98 wt.% of at least one hydrocarbon, (B) 2.00 to 59.98 wt.% water or an aqueous solution of a salt, which does not fall under the following definition according to (C), and (C) 0.02 to 8.00 wt.% of a salt from an amino amide of a fatty acid, containing at least one primary, secondary or tertiary amino group, and an acid component of general formula (I), in which R1 is a linear or branched, saturated or mono- or polyunsaturated hydrocarbon group with 1 to 40 C-atoms, R2 is an alkylene or arylalkylene group with 2 to 20 C-atoms, and X is a group containing at least one acid group, where m = 0 or 1, n = 1 to 30, wherein the weight proportions of the components (A), (B) and (C) relate to the sum of the masses of these components and this is 100 wt.%. The invention also relates to a method for producing the emulsion, an oil-based drilling fluid and a method for creating and stabilising a drill hole.
An organoclay composition comprising a mineral clay mixture which has been treated with a combination of quaternary ammonium salts, said mixture comprising: mineral clay (a) comprising about 15 to about 60 wt.%, based on the weight of the mineral clay mixture, of sepiolite; mineral clay (b) comprising about 40 to about 85 wt.% based on the weight of the mineral clay mixture, of montmorillonite; an alkyl or alkenyl quaternary ammonium salt and an alkoxylated quaternary ammonium salt.
C09K 8/32 - Non-aqueous well-drilling compositions, e.g. oil-based
C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
14.
SELF-PRESSURIZING SOLUBLE ALKALI SILICATE FOR USE IN SEALING SUBTERRANEAN SPACES
The invention provides compositions and methods for sealing subterranean spaces such as natural or induced fractures, vugs or annular spaces. The composition is composed of a base fluid consisting of a soluble alkali silicate, a gas generating additive, solids and a setting agent. The gas generating additive may be coated or uncoated. The gas generating additive may also be in the form of a slurry. In the case of coated additives, the coating may act as a retarder or an accelerator to the expansion and setting agent of the soluble alkali silica. Similarly, the choice of carrier fluid in a slurry may retard or accelerate the expansion and setting of the alkali silicate-based plug.
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
C09K 8/504 - Compositions based on water or polar solvents
C09K 8/516 - Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls characterised by their form or by the form of their components, e.g. encapsulated material
Compositions and methods of making urethane based nonionic associative thickeners are described herein. Uses of the nonionic associative thickeners are also described.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The present invention relates to modified comb copolymers comprising special structural units, which are produced by converting SMA resins and optionally special copolymers with an AB block copolymer structure with a mixture of at least one polyalkylene oxide monoamine and at least one amino alcohol, with a mixture of at least one polyalkylene oxide monoamine and at least one N,N-disubstituted diamine or a mixture of at least one polyalkylene oxide monoamine, at least one N,N- disubstituted diamine and at least one polymer selected from the group comprising monohydroxy-terminated polyalkylene oxides, monohydroxy-terminated polyesters and monohydroxy-terminated block copolymers comprising polyalkylene oxide and polyester blocks, and their monohydroxy-terminated side chains are converted to phosphoric acid ester groups or their N,N-disubstituted amino-terminated side chains are converted to quaternary ammonium salts, and their use as wetting and dispersing agents.
C08F 8/32 - Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
C08F 8/40 - Introducing phosphorus atoms or phosphorus-containing groups
C08G 81/02 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
C09B 67/00 - Influencing the physical, e.g. the dyeing or printing, properties of dyestuffs without chemical reaction, e.g. by treating with solvents; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
C09D 17/00 - Pigment pastes, e.g. for mixing in paints
C08F 212/04 - Monomers containing only one unsaturated aliphatic radical containing one ring
C08F 222/08 - Maleic anhydride with vinyl aromatic monomers
The present invention relates to a polymer mixture consisting of at least one comb copolymer I containing blocks consisting of special structural units and at least one copolymerisate II comprising polymerised, optionally substituted styrene and maleic anhydride units, the carboxyl groups of which are present at least partially as alkali metal, earth alkali metal or ammonium salts, and also to the use of these polymer mixtures as wetting and dispersing agents.
The invention relates to copolymers comprising three segments of different ion density, the fraction of the ionic monomers in each segment being from 1 to 100 mol%, the second and third segment containing ethylenically unsaturated monomers of the respectively preceding segment, and the copolymers being preparable by means of a monofunctional initiator by way of NMP or RAFT. The invention further relates to a process for preparing copolymers and to their use as dispersants.
C08F 26/02 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containin by a single or double bond to nitrogen
C08J 3/02 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
C09D 139/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by; Coating compositions based on derivatives of such polymers
19.
BIURET COMPOUNDS, THEIR PREPARATION AND USE, AND INTERMEDIATES IN THEIR PREPARATION
The present invention relates to biuret compounds of the general formula (see above formula) in which R1 is C2-C18 alkylene, cycloalkylene, arylene or aralkylene, Y is -O- and/or -NH-, R2 is C4-C22 alkyl, C3-C18 alkenyl, cycloalkyl, aralkyl, C m H2m+1 (O-C n H2n) x- (O-CH (C6H5) -CH2) u-, C m H2m+1 (OOC-C v H2v) x-, X- C6H4- (O-C n H2n) x- (O-CH (C6H5) -CH2) u-, where m = 1-22, n = 2-4, x = 0-15, u = 0-15, v = 4-5, X is C1-C12 alkyl, -(C6H5) 1-4 and R3, R4 and R5 are C2-C18 alkylene, cycloalkylene, arylene or aralkylene, it being possible for R3, R4 and R5 to be identical or different, Z is -COO-, NHCO-, NHCOO-, NHCONH- and/or mixtures thereof and a is 1-20. The invention also relates to a process for preparing biuret compounds and to their use as rheology control agents. The invention further relates to urethane- and/or urea-containing uretdiones which are useful intermediates for preparing the biuret compounds.
The invention relates to surface-modified nanoparticles composed of metal or semimetal oxides or hydroxides and having been reacted on their surface with a modifier, with formation of covalent bonds. The modifier is a polysiloxane. The invention also relates to a process for preparing the nanoparticles, to their use as fillers in coating materials, plastics, foams and nail varnishes, and to dispersions which comprise the nanoparticles.
B01J 2/00 - Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
B82B 1/00 - Nanostructures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
B82B 3/00 - Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
C09C 3/12 - Treatment with organosilicon compounds
21.
ADDITION COMPOUNDS SUITABLE AS DISPERSANTS AND DISPERSION STABILIZERS
The invention relates to addition compounds which are obtainable by reacting a) one or more polyisocyanates containing uretdione groups with b) one or more compounds of the formula (I) Y-(XH)n (I) where XH is a group that is reactive towards isocyanates and Y is a monomeric or polymeric group that is not reactive towards isocyanates and which comprises one or more aliphatic, cycloaliphatic, araliphatic and/or aromatic groups, Y possessing a number-average molar mass of less than 20 000 g/mol, and n is 1, 2 or 3, and for at least 50 mol% of the compounds of the formula (I) it is the case that n = 1, with the proviso that substantially all free isocyanate groups of component a) are reacted with the compounds of the formula (I) to give an intermediate which contains uretdione groups, and subsequently the uretdione groups are reacted with c) one or more compounds of the general formula (II) Z-NHR (II) in which R is hydrogen or a straight-chain or branched alkyl group having 1 to 4 carbon atoms and Z is an aliphatic, cycloaliphatic and/or aromatic basic radical and, if desired, after this reaction, reacting any reactive amino groups still present in the reaction - 56 - product with compounds that are reactive towards amino groups; and also salts or quaternization products of the addition compounds. The invention further relates to a process for preparing the addition compounds and to their use, particularly as dispersion stabilizers and dispersants.
The invention relates to addition compounds suitable for use as wetting agents and dispersants and obtainable by reacting monofunctional or polyfunctional aromatic epoxides with polyoxyalkylenemonoamines having a number-average molecular weight of > 400 g/mol, one primary or secondary amino group and at least 4 ether oxygens per molecule, from 90 to 100% of the epoxide groups of the starting material having undergone reaction, the weight fraction of aromatic groups in the addition compounds being not more than 50% and the addition compounds containing per molecule at least one amino group on which salts can be formed, or being present as a salt. The invention also relates to a process for preparing the addition compounds, to their use as wetting agents and/or dispersants and to pigments or fillers coated with the addition compounds and to pigment pastes which comprise pigments, binders and the addition compounds of the invention.
C08G 59/14 - Polycondensates modified by chemical after-treatment
C08G 59/18 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
patents
