The present invention relates to a borate-free, aqueous cleaning and treating composition comprising at least one metasilicate (A); at least one orthophosphate (B); at least one phosphate (C) selected from the group consisting of diphosphates and triphosphates; at least one surfactant (D) selected from the group consisting of anionic surfactants and non-ionic surfactants; and wherein the aqueous cleaning and treating composition has a pH value at 20 °C in the range from 11.0 to 12.8; and possesses a molar ratio of Si atoms to P atoms being from 0.75:1 to 1:0.75, based on the sum of the Si-containing metasilicates (A) and the sum of the P-containing orthophosphates (B), diphosphates (C) and triphosphates (C). The invention further relates to solid mixtures. The invention also relates to a method for cleaning and treating metallic substrates making use of the compositions and the use of the compositions to clean metallic substrates and treat metallic substrates by forming a Si-containing layer on the surface of the metallic substrates.
The present invention relates to an aqueous non-Cr passivating composition comprising, on the basis of the weight of the non-Cr passivating composition: (a) 5 to 20% by weight of a silicon-containing compound; and (b) 5 to 15% by weight of a water-borne polymer, which is selected from the group consisting of a polyurethane resin, an epoxy resin, a polyacrylate resin and the combination thereof. The present invention also relates to a metal with a surface passivated by the aqueous non-Cr passivating composition and an article having a metallic surface passivated by the aqueous non-Cr passivating composition, and to a process for passivating a metallic surface with the aqueous non-Cr passivating composition.
C09D 133/00 - 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 only one carboxyl radical, or of salts, a; Coating compositions based on derivatives of such polymers
C23C 22/05 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
3.
AQUEOUS COMPOSITION FOR METALLIC SURFACE TREATMENT AND THE APPLICATION THEREOF
The present invention relates to an aqueous composition comprising components (A) from 10% to 35% by weight of acrylic resin without hydroxyl group, wherein said acrylic resin has an average particle diameter in a range of from 50?m to 200?m measured by dynamic light scattering according to ISO13321:2004, (B) from 0.1% to 4% by weight of a film-forming aid having a boiling point of no more than 300°C under 1 atm, (C) from 1% to 8% by weight of a lubricant having an average particle diameter in a range of from 100nm to 600nm measured by dynamic light scattering according to ISO13321:2004, and (D) from 0.1% to 1% by weight of a water-soluble chromium compound, wherein its weight is calculated from the chromium element, and the weight percentages of all components are based on the total weight of the aqueous composition.
The present invention relates to a method of sealing a substrate optionally comprising a step (1) of applying a primer composition, and necessarily comprising a step (2) of applying a sealant composition, which is obtainable by mixing components (A) and (B) of a 2K-sealing system with each other, comprising in (A) a thiol groups containing polymeric constituent (a1) and in (B) a constituent (b), which is suitable for hardening the sealant composition by at least partially inducing a chemical transformation of the thiol groups of constituent (a1), wherein an organosilane constituent comprising at least one hydrolyzable group X, at least one NCO-group and a spacer unit comprising a moiety MS comprising in turn at least one sulfur atom and being positioned between X and the NCO-group, is at least present - when step (1) is not performed - as constituent (a2) in the sealant composition applied in step (2) or is - when step (1) is performed - at least present as a constituent in the primer composition applied in step (1 ), a sealed substrate obtainable by this method, a use of said organosilane constituent for adhesion enhancement, the sealant composition used in step (2), the 2K sealing system as such, and to the organosilane constituent per se.
The present invention relates to a method of pretreatment of a metallic substrate for a subsequent metal cold forming process, said method comprising at least steps (1) and (2), namely providing at least one substrate having at least one surface at least partially made of at least one metal (step (1)), contacting the at least one surface of the substrate provided in step (1) with an aqueous lubricant composition (B) (step (2)), wherein the aqueous lubricant composition (B) comprises besides water at least constituents (b1) to (b4) and optionally (b5), namely as (b1) at least one homopolymer and/or copolymer being prepared by polymerization of at least vinyl pyrrolidone as at least one monomer, wherein (b1) has a polydispersity index (PDI) in a range of from 1.5 to 8.0, as (b2) at least one wax, as (b3) at least one defoamer,and as (b4) (i) oxalate anions and/or phosphate anions or (ii) calcium cations, chloride anions and hydroxide anions, as well as optionally Fe(III) ions as (b5), wherein (b5) is present in case at least oxalate anions are present as (b4), a pretreated metallic substrate obtainable by the inventive method, a method of cold forming of a metallic substrate and an aqueous lubricant composition (B) as defined above.
C23C 22/46 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing oxalates
C23C 22/66 - Treatment of aluminium or alloys based thereon
6.
TREATMENT OF METALLIC SURFACES BY OH-FUNCTIONAL COPOLYMER CONTAINING ACIDIC AQUEOUS COMPOSITIONS
The present invention relates to a method for treatment of at least one metallic surface of a substrate comprising at least a step of contacting said surface with an acidic aqueous composition (A), said acidic aqueous composition (A) comprising (a) one or more metal ions selected from the group of titanium, zirconium and hafnium ions (b) and one or more polymers (P) having side chains (S1) and (S2) being different from one another, wherein side chain (S1) comprises at least one functional group selected from the group consisting of hydroxyl groups and carboxylic acid groups and mixtures thereof, and side chain (S2) comprises at least two hydroxyl groups, to a corresponding acidic aqueous composition (A) as such, to a master batch to produce such acidic aqueous composition (A), to the use of the acidic aqueous composition (A) for treating metallic surfaces and to substrates comprising the thus treated surfaces.
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
7.
TREATMENT OF METALLIC SURFACES BY COPOLYMER CONTAINING ACIDIC AQUEOUS COMPOSITIONS
The present invention relates to a method for treatment of at least one metallic surface of a substrate comprising at least a step of contacting said surface with an acidic aqueous composition (A), said acidic aqueous composition (A) comprising (a) one or more metal ions selected from the group of titanium, zirconium and hafnium ions (b) and one or more polymers (P) containing OH- and/or COOH-groups as well as at least one sulfur-containing moiety, to a corresponding acidic aqueous composition (A) as such, to a master batch to produce such acidic aqueous composition (A), to the use of the acidic aqueous composition (A) for treating metallic surfaces and to substrates comprising the thus treated surfaces.
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/44 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
8.
IMPROVED ACTIVATION AGENT FOR MANGANESE PHOSPHATING PROCESSES
The present invention refers to an alkaline aqueous activation agent for manganese phosphating processes, which comprises a) nanoscale manganese phosphate particles in dispersed form, and b) at least one dispersion agent selected from the group consisting of homo- and copolymers containing at least one monomeric unit having at least one carboxylic acid salt group. Moreover, the present invention refers to a method for producing said activation agent, an improved manganese phosphating process making use of the activation agent and an accordingly phosphatized metallic substrate, especially a steel substrate.
The invention relates to a phosphonate-free, aqueous pickling composition having a pH value at 55 °C in the range from 5 to 9, and containing at least one copolymer, which is water-soluble or water-dispersible and selected from the group consisting of polyvinylpyrrolidones; the content of water being in the range from 95.0 wt.-% to 99.9 wt.-% based on the total weight of the composition. The invention further relates to a concentrate to produce such compositions, a pickling method for pickling metallic substrates making use of the compositions, a coating method for coating metallic substrates comprising the pickling method and a use of the compositions for pickling metallic substrates.
C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
C23G 1/24 - Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
C23G 1/26 - Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
The invention relates to an aqueous composition having a pH value at 55 °C in the range from 5 to 9, containing at least two different amino organophosphonic acid derivatives of formula (I) wherein residues R independently of each other are CH2-PO(OR'')2, residues R' independently of each other are alkylene residues with 2 to 4 carbon atoms, residues R'' independently of each other are H, Na, K, Li or NH4; and n is an integer from 0 to 4; and wherein the at least two different amino organophosphonic acid derivatives differ in the value of n. The invention further relates to a concentrate to produce such compositions, a pickling method for pickling metallic substrates making use of the compositions, a coating method for coating metallic substrates comprising the pickling method and a use of the compositions for pickling metallic substrates.
C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
The invention relates to an aqueous composition having a pH value at 55 °C in the range from 5 to 9, containing at least one different amino organophosphonic acid derivatives of formula (I) wherein residues R independently of each other are CH2-PO(OR'')2, residues R' independently of each other are alkylene residues with 2 to 4 carbon atoms, residues R'' independently of each other are H, Na, K, Li or NH4; and n is an integer from 0 to 4; and at least one copolymer, which is water-soluble or water-dispersible and selected from the group consisting of at least partially neutralized poly(meth)acrylic acids and polyvinylpyrrolidones; the content of water being in the range from 80 wt.-% to 99.5 wt.-%, based on the total weight of the composition. The invention further relates to a concentrate to produce such compositions, a pickling method for pickling metallic substrates making use of the compositions, a coating method for coating metallic substrates comprising the pickling method and a use of the compositions for pickling metallic substrates.
C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
The present invention relates to method for pretreatment of a metallic substrate for a subsequent metal cold forming process, said method comprising at least steps (1) and (2) and optionally step (3), namely providing at least one substrate having at least one surface at least partially made of at least one metal (1), contacting the at least one surface of the substrate provided in step (1) with an aqueous lubricant composition (A) having a pH value below 2.0 and comprising besides water oxalate anions (a1), thiosulfate anions (a2), chloride anions (a3), at least one film-forming polymer (a4), which is a homopolymer and/or copolymer being prepared by polymerization of at least one ethylenically unsaturated monomer, at least one wax (a5), and fluoride anions and/or bifluoride anions (a6), and optionally drying the coating film obtained after having performed step (2), a pretreated metallic substrate obtainable by the aforementioned inventive method, a method of cold forming of a metallic substrate including a step of subjecting the inventive pretreated metallic substrate to a cold forming process, an aqueous lubricant composition (A) as defined above and a master batch for preparing the aqueous composition (A).
C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
C23C 22/46 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing oxalates
The present invention relates to a method for pretreatment of a metallic substrate for a subsequent metal cold forming process, said method comprising at least steps (1) and (2), namely providing at least one substrate having at least one surface at least partially made of at least one metal (step (1)), contacting the at least one surface of the substrate provided in step (1) with an aqueous lubricant composition (B) (step (2)), wherein the aqueous lubricant composition (B) has a pH value in the range of from 0.1 to 6.0, comprises water in an amount of at least 40 wt.-%, based on the total weight of composition (B), at least one film-forming polymer (b1), which is a homopolymer and/or copolymer being prepared by polymerization of at least vinyl pyrrolidone, wherein said homopolymer and/or copolymer has a weight average molecular weight in the range of from 1 000 to 100 000 g/mol, at least one wax (b2), at least one corrosion inhibitor (b3) and oxalate and/or phosphate anions (b4), a pretreated metallic substrate obtainable by the aforementioned inventive method, a method of cold forming of a metallic substrate including a step of subjecting the inventive pretreated metallic substrate to a cold forming process, an aqueous lubricant composition (B) as defined above and a master batch for preparing the aqueous composition (B).
The present invention relates to a 2K coating system consisting of two components (A) and (B) being separate from each other, wherein (A) comprises at least one constituent (a1) containing at least one aromatic moiety and bearing on average at least two primary and/or secondary amino groups, wherein (B) comprises at least one constituent (b1) containing at least one aromatic moiety and bearing on average at least two isocyanate groups, wherein each of (A) and (B) has a solid content of at least 95 wt.-%, based on the total weight of the respective component, and constituent (b1) present in component (B) bears carbodiimide and/or uretonimine units as well as at least one structural unit (I), a coating composition obtainable by mixing components (A) and (B) of the inventive coating system, a use of said coating composition as sealant, in particular for sealing the exterior of fuel tanks, a method of applying the coating composition to a substrate and in particular a method of sealing the exterior of fuel tanks, and a sealed substrate such as a sealed fuel tank obtainable by this method.
The presently claimed invention relates to a composition comprising at least one polyurethane polymer. The presently claimed invention particularly relates to use of the composition comprising at least one polyurethane polymer for metal pre-treatment and a process for metal pre-treatment.
This invention provides an anti-rust composition for metal surfaces comprising: a). 30% to 80% by weight of water-soluble or water-dispersible acrylic resin and/or urethane resin; b). 0.1% to 10% by weight of epoxysilane and/or vinylsilane; c). 0.1% to 3% by weight of silicone surfactant and/or fluorosurfactant; d). 0.1% to 10% by weight of alcohol and/or ether; and e). water, and the weight percentage of each component is based on the total weight of the aqueous composition. And this invention also provides an anti-rust treatment method on metal surfaces comprising steps of i). coating the invented anti-rust composition onto the metal surfaces and ii). dry the coating layer at temperature from 60°C to 150°C. Moreover, this invention also provides an anti-rust treated coil steel obtained by the invented anti-rust treatment method.
The present invention refers to an improved method for applying silane-based coatings to solid surfaces, in particular metal surfaces, wherein a solid surface, in particular an optionally anodized or conversion-coated metal surface, is i) optionally cleaned, etched and/or desmutted, ii) brought into contact with at least one unhydrolyzed silane such that an unhydrolyzed silane layer is formed on the solid surface, iii) brought into contact with water such that the silane layer is at least partially hydrolyzed, iv) at least partially dried such that residues of water and alkanol are at least partially removed from the solid surface, v) optionally heated such that the at least partially hydrolyzed and least partially dried silane layer is cured, and vi) in case that step v) is conducted, optionally painted. The present invention also relates to an according silane-containing composition as well as to a solidsurface, in particular a metal surface, with an according silane-based coating and its use in the field of transportation industry or electrically conductive assembling.
B05D 1/36 - Successively applying liquids or other fluent materials, e.g. without intermediate treatment
B05D 1/18 - Processes for applying liquids or other fluent materials performed by dipping
B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
C23C 22/74 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
18.
SIMPLIFIED PROCESS FOR THE PRETREATMENT OF METALLIC SUBSTRATES FOR COLD FORMING AND A REACTIVE LUBRICANT FOR THIS PURPOSE
The present invention relates to a simplified method for pretreating metal substrates for cold forming, in which method a metal substrate is successively 1) preferably cleaned and then rinsed, 2) preferably pickled and then rinsed, 3) brought into contact with a water-based, acidic, reactive lubricant, which contains a) oxalic acid, b) at least one accelerator, which comprises nitroguanidine and/or at least one iron(III) source, and c) at least one film former, at least one wax and/or at least one emulsified lubrication oil, and 4) optionally dried, wherein the at least one film former is selected from the group consisting of homopolymers and copolymers of ethylene, propylene, styrene, (meth)acrylic acid, (meth)acrylate, vinyl amine, vinyl formamide, vinyl pyrrolidone, vinyl caprolactam, vinyl acetate, vinyl imidazole and/or epoxy and salts thereof and polyurethanes, polyamides, polyethylene imines, polyamines and salts thereof, wherein the at least one wax is selected from the group consisting of non-ionic waxes and cationic stabilized waxes, and wherein the at least one emulsified lubrication oil is selected from the group consisting of synthetic oils, mineral oils, vegetable oils and animal oils, to a corresponding reactive lubricant and to a metal substrate pretreated by the method and use thereof.
C10M 173/00 - Lubricating compositions containing more than 10% water
C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
C23C 22/46 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing oxalates
19.
COATING AGENT COMPOSITIONS THAT ARE SUITABLE FOR DIP COATING AND THAT CURE AT LOW TEMPERATURE
The invention relates to aqueous coating agent compositions containing at least one type of organic polymer particles having an average particle size of 10 to 1000 nm, comprising isocyanate- reactive polymers (A), one or more ketoxime- and/or pyrazole-blocked polyisocyanates (B), which contain at least one aromatic hydrocarbon moiety or at least one cycloaliphatic hydrocarbon moiety, at least one polyanionic polymer (C), at least one complex fluoride (D) selected from the group consisting of hexa- or tetrafluorides of the metal elements of groups IVb, Vb and Vlb of the periodic table of the elements, and at least one aminosilane (E), the aqueous coating agent compositions having a pH value of 3 and comprising a total solid content of 5 to 35 wt%. The invention further relates to a method for producing said coating agent compositions, to a method for coating surfaces that release metal ions with the coating agent compositions according to the invention, and to the coatings obtained therefrom.
The present invention lies in the field of plastic caps filled with sealing compound for sealing connecting elements in aircraft construction against liquids, which plastic caps act as combined protection against fuel and hydraulic fluid, in particular hydraulic fluid based on tributyl phosphate, and against lightning strikes and can be economically produced and applied. The present invention relates to a plastic cap for sealing connecting elements in aircraft construction, which plastic cap consists largely of at least one high-performance polymer, has a dielectric strength of at least 10 kV/mm according to DIN IEC 60243, and is filled with a sealing compound, which has a high energy absorption capacity and has at least one filler selected from the group consisting of hollow filling bodies filled with gas and/or air, the plastic cap and the sealing compound being cohesively connected to each other. In addition, the invention relates to a method for filling and applying such plastic caps and to a corresponding aircraft.
H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
B65D 41/00 - Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
The present invention relates to an aqueous chromium-free composition for pre-treating aluminium surfaces, which contains at least one water-soluble phosphorus compound, at least one water-soluble zirconium compound, at least one water-soluble titanium compound and at least one water-soluble molybdenum compound, wherein the content of phosphorus compound is in the range of 15 to 50 mg/l (calculated as phosphorus), the content of zirconium compound is in the range of 400 to 600 mg/l (calculated as metal), the content of titanium compound is in the range of 85 to 400 mg/l (calculated as metal), and the content of molybdenum compound is in the range of 40 to 150 mg/l (calculated as metal). The invention also relates to a corresponding method and to a correspondingly pretreated component or strip.
C23C 22/44 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
22.
DEVICE AND METHOD FOR DYNAMIC METERING OF SEALING COMPOUNDS
The present invention relates to a device for dynamic metering of sealing compound volumes and to a corresponding method. The device according to the invention has two containers for sealing compound components, a first drive which is connected to two mechanisms, of which in each case one can convey one of the sealing compound components out of its container, a drive controller, a mixing unit for mixing the sealing compound components conveyed out of the containers, with an opening for the application of the sealing compound onto a component, and additionally a compensating container with a compensating volume, and a second drive which is connected to a plunger which reaches into the compensating volume of the compensating container. The compensating container is connected here to the mixing unit. The first and the second drive can be jointly dynamically controlled by the drive controller.
B05C 17/005 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure
B05C 9/06 - Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by groups , or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
23.
PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM- AND MOLYBDENUM-CONTAINING COMPOSITIONS
The invention relates to a method for pre-treating workpieces with a surface made of aluminum or aluminum alloys for a forming process without machining and/or for a connection process by welding or adhering with identically pre-treated or optionally otherwise pre-coated workpieces or with optionally pre-coated parts made of steel and/or galvanized steel and/or alloy galvanized steel and for a subsequent permanently corrosion-protective treatment by means of a phosphating process, a non-chromate conversion treatment, a primer application process, or by painting. The workpiece is a) pickled with an aqueous acid solution containing mineral acid in an immersion or spraying process, b) rinsed with water, and c) brought into contact with an aqueous acid solution, which is free of chromate and contains Zr as complex fluoride and Mo as molybdate in a weight ratio (calculated as Zr/Mo metal) of Zr : Mo from 15 : 1 to 3.5 : 1, using an immersion or spraying application such that after the subsequent drying process, a layer weight of 2 to 5 mg/m2 of Zr and Mo results in each case, wherein the solution contains 100 to 800 mg/l of Zr and 30 to 100 mg/l of Mo (calculated as Zr/Mo metal) and has a pH value of 2.5 to 4.
C23C 22/44 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
C23C 22/80 - Pretreatment of the material to be coated with solutions containing titanium or zirconium compounds
24.
METHOD OF APPLYING A SULFUR-CONTAINING SEALING COMPOUND, APPARATUS THEREFOR, CORRESPONDINGLY TREATED AEROSPACE VEHICLE AND USE THEREOF
The invention relates to a method of sealing, coating or/and aerodynamic smoothing of at least one connecting element that protrudes from a surface or/and for sealing, coating or/and aerodynamic smoothing of a surface at a gap or at an uneven connection site with a sulphur-containing SCOD sealing compound at at least one application site, especially on an aerospace component, with at least one nozzle element and with at least one irradiation unit, which is characterized in that i) a nozzle element contains a mixed sealing compound and is guided or/and mounted over the connecting element protruding from a surface, over the gap or/and over the uneven connection site, ii) the connecting element protruding from the surface, the gap or the uneven connection site is covered fully with sealing compound, the sealing compound forming a sealing compound cover essentially in the form of a sealing compound cap, a coating or/and a mound-shaped or bead-shaped elevation, iii) the nozzle element or at least a portion is raised if required from the surface having the sealing compound cover, and iv) the curing of the sealing compound is initiated with the aid of at least one irradiation unit by energy input and by release of a latent catalyst or is brought about by direct activation of at least one reaction component, such that the mixed sealing compound subsequently hardens or/and hardens further. The invention also relates to a corresponding apparatus, to the aerospace vehicle treated in this way and to the use of the method and the apparatus.
B05D 5/08 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
25.
SEALING COMPOUND BASED ON A MERCAPTO-TERMINATED BASE POLYMER/EPOXY COMPOSITION AND METHOD FOR CURING BY MEANS OF A PHOTOLATENT CATALYST
The present invention relates to a sealing mass for coating a substrate, which is a mixture of a predominantly unhardened matrix and a hardener containing at least one epoxy compound, wherein the matrix contains a mercapto-terminated base polymer based on polyether, polythioether, polythioethersulfide, polysulfide, copolymers thereof and/or mixtures thereof, wherein the matrix, the hardener or both contain at least one photoinitiator based on a sterically hindered nitrogen-containing organic base, and, through the effects of energy-rich actinic radiation, the at least one photoinitiator dissociates at least one radical per molecule based on a nitrogen-containing organic base, from which a nitrogen-containing organic base having a pKs value of the conjugated acid in the region of 6 to 30 is formed, which acts as an active catalyst for the hardening of the matrix. The present invention also relates to a corresponding method for coating a substrate with a sealing compound.
The invention relates to a detergent for gentle removal of inks as used for marking in a roll mill, and to markers as used in production for temporary marking. According to the invention, the problem is solved by a detergent which permits the gentle removal of inks or markers from metallic surfaces in the form of a concentrate or a cleaning bath solution containing at least one water-immiscible solvent in an amount of 4 to 200 g/l, at least one anionic and/or nonionic surfactant in an amount of 8-300 g/l, at least one complexing agent in an amount of 1-100 g/l, at least one buffer substance in an amount of 1-100 g/l and at least one water-miscible solvent in an amount of 4-200 g/l in water.
The invention relates to a method for treating shaped bodies having a steel surface having a carbon content in the range of 0 to 2.06 wt% and a chromium content in the range of 0 to <10 wt% before cold working, wherein at least one shaped body is brought in contact with an aqueous acidic composition in order to form a conversion layer as a separating layer, wherein the aqueous acidic composition is prepared only with a formulation that consists substantially of water, 2 to 500 g/L of oxalic acid, and a) 0.01 to 20 g/L of at least one accelerator based on guanidine and/or b) 0.01 to 20 g/L of at least one nitrate and optionally of pigment, surfactant, and/or thickening agent, wherein the pickling removal of the aqueous acidic composition is in the range of 1 to 6 g/m2, wherein the layer weight of a dried conversion layer is in the range of 1.5 to 15 g/m2, wherein the ratio of pickling removal to layer weight PR : LW of the dried conversion layer is in the range of (0.30 to 0.75) : 1 and wherein the dried conversion layer forms a firmly adhering coating.
C23C 22/46 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing oxalates
C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
The invention relates to fissure-detection agents for fault detection according to the penetration method of metallic and/or non-metallic components, which are a micro-emulsion comprising at least 10 wt.% of water A), at least 0.1 wt.% of at least one dye B), at least 5 wt.% of at least one substantially water-insoluble liquid phase C) and at least 2 wt.% of at least one surfactant D) selected from non-ionic, anionic and/or amphoteric surfactants, the sum of all constituents being 100 wt.%, wherein the fissure-detection agent has a mean particle size in the range of 1 to 250 nm and a transparency of at least 70 % at 600 nm. The invention also relates to the production of said fissure-detection agents, to a process for their preparation or/and disposal, and their use.
G01N 21/91 - Investigating the presence of flaws, defects or contamination using penetration of dyes, e.g. fluorescent ink
C09B 67/22 - Mixtures of different pigments or dyes or solid solutions of pigments or dyes
C09B 67/42 - Preparations of dyes not provided for in a single one of groups
G01M 3/22 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for valves
29.
PAINT PRETREATMENT AGENT FOR COATING-TYPE PAINT, AND COATING-TYPE PAINTING METHOD
This paint pretreatment agent for coating-type paint contains (A) one or more metal elements selected from a group consisting of zirconium, titanium and hafnium, (B) fluorine, and (C) one or more coupling agents from an amino group-containing silane coupling agent, a hydrolyzate thereof, and a polymer thereof, and (D) a component comprising at least one of allylamine and polyallylamine, wherein the mass ratio (C/D) of the coupling agent (C) to the component (D) is 1 or greater. This coating-type painting method involves a chemical treatment step in which the paint pretreatment agent is used to chemically treat the metal substrate, and a coating-type painting step in which the chemically treated metal substrate is coated with a coating-type paint. When forming a coating film by means of the coating-type paint on the metal substrate surface which has undergone coating pretreatment, the present invention makes it possible to achieve a coating with excellent adhesion, salt water resistance, and impact resistance.
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
B05D 3/10 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
The present application concerns an aqueous metalworking composition comprising in a concentrate or after dilution of a concentrate with water in a diluent: 0.002 to 40 % by weight of component (a) which is a lubricity agent comprising at least one water-insoluble compound (a) having at least one hydrophobic aliphatic chain and at least one polar group and having a water solubility at 20 °C of less than 0.1 g/liter; 0.002 to 40 % by weight of component (b)comprising at least one water-soluble corrosion inhibiting compound(b) having a water-solubility at 20 °C of more than 0.1g/liter; 0.002 to 45 % by weight of at least one emulsifying and dispersing agent(c)which contains at least one emulsifying and/or dispersing compound (c) which is water-soluble, water-miscible or water-dispersable and which is selected from the group consisting of non- ionic, anionic and zwitterionic surfactants; 0.002 to 30 % by weight of an alkalinity agent (d) containing at least one alkaline water-soluble compound (d) selected from the group consisting of hydroxides and carbonates;and 0.004 to 99 % by weight of a transport component(e)containing predominantly water. Further on, the present application concerns a method of use of such aqueous metalworking composition as a coolant, as a lubricant, etc., and concerns further on a method to prepare an aqueous metalworking composition and a metalworking process.
This chemical conversion treatment agent for surface treatment of a metal substrate contains a co-condensate of a silane coupling agent (A), a silane coupling agent (B), the element fluorine, and at least one metal element selected from a group consisting of zirconium, titanium and hafnium. The silane coupling agent (A) has a tri- or di-alkoxysilane group and an amino group, and the silane coupling agent (B) is represented by general formula (1) [in the formula, R represents an alkylene group of 1-5 carbon atoms; Z represents a cyclohexyl group optionally having an epoxy group; a, b, and c are integers 0-3 fulfilling the conditions that the sum of a, b and c is 3 and the sum of a and b is 2-3; and x is an integer 1-3.].
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
32.
COATING COMPOSITION COMPRISING A SHEET SILICATE PIGMENT AND PROCESS FOR THE GENERATION OF A CLEAR OR TRANSLUCENT EMISSIVE COATING
The invention relates to a composition for applying a clear or translucent and colorless or nearly colorless emissive coating especially for cool roofing on a metallic surface comprising in a dispersion a) 50 to 300 g/L of at least one of clear or translucent organic polymeric substances of a binder, and b) 30 to 300 g/L of sheet silicate pigments having a TE value for the thermal emissivity of at least 0.40, having a particle size distribution of which d50 is in the range of 0.3 to 80 µm and having been comminuted, disintegrated, exfoliated or any combination of these to thin particles. There is further on provided a process for applying a clear or translucent and colorless or nearly colorless emissive coating especially for cool roofing on a metallic surface wherein a composition of the invention is applied on a metallic surface, wherein the coating is dried and wherein the dried coating has a coating weight in the range of from 0.2 to 2000 g/m2. There is further on provided a clear or translucent and colorless or nearly colorless emissive coating as prepared with a composition of the invention as well as a cool element like a cool roofing element.
The invention relates to a method for coating metallic surfaces with an aqueous composition as a solution or dispersion, in which the composition contains a) at least one phosphate, b) at least 0.1 g/l of at least one titanium or/and zirconium compound, c) at least one complexing agent, d) cations of aluminium, chromium(III) or/and zinc or/and at least one compound having a content of aluminium, chromium(III) or/and zinc and e) 1 to 500 g/l of at least one acid-tolerant, cationic or nonionic organic polymer/copolymer, based on the content of the solids and active ingredients of these additives.
C23C 22/36 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides containing also phosphates
C23C 22/44 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
34.
INORGANIC CHROMIUM-FREE METAL SURFACE TREATMENT AGENT
Disclosed is an inorganic chromium-free metal surface treatment agent that contains a metal X1-containing compound X, the ionic species of which containing the metal X1 become cations in an aqueous solution, and a metal Y1-containing compound Y, the ionic species of which containing the metal Y1 become anions in an aqueous solution. The total amount of the compound X is 0.01-10% by mass, the total amount of the compound Y is 0.01-10% by mass, and the molar ratio of the metal X1 in the cations to the metal Y1 in the anions is 0.1-5. The metal X1 is composed of at least one element that is selected from the group consisting of Ti, Zr and Al, and the metal Y1 is composed of at least one element that is selected from the group consisting of Ti, Zr, Si, B and Al. The inorganic chromium-free metal surface treatment agent does not substantially contain an organic resin.
C23C 22/36 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides containing also phosphates
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/42 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also phosphates
C23C 22/44 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
35.
PROCESS FOR COATING METAL SURFACES WITH A PASSIVATING AGENT, THE PASSIVATING AGENT AND ITS USE
The invention relates to a process for coating metallic surfaces with an aqueous composition as solution or as dispersion, wherein the composition contains at least one phosphate, at least 3 g/l of at least one titanium or/and zirconium compound and at least one complexing agent, and also corresponding aqueous compositions. The coatings produced therewith display very good bare corrosion protection in the NSS salt spray test and in the condensate water constant temperature and humidity test.
C23C 22/36 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides containing also phosphates
36.
A PROCESS FOR THE COATING OF METALLIC SURFACES WITH A LUBRICANT COMPOSITION CONTAINING WAXES
The invention relates to a method for preparing metal workpieces for cold forming by applying a lubricant layer (=coating) either to a metal surface or to a metal surface which has been pre- coated with e.g. a conversion coating. The lubricant layer is formed by contacting the surface with an aqueous lubricant composition which has a content in at least two waxes having distinct properties and a content in organic polymer material, the organic polymer material used predominantly being monomers, oligomers, co-oligomers, polymers or/and copolymers based on ionomer, acrylic acid/methacrylic acid, epoxide, ethylene, polyamide, propylene, styrene, urethane, the ester(s) or/and salt(s) thereof. The invention also relates to the corresponding lubricant composition, to the lubricant layer produced thereof and to its use.
C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
37.
A PROCESS FOR THE COATING OF METALLIC SURFACES WITH A LUBRICANT COMPOSITION
The invention relates to a method for preparing metal workpieces for cold forming by applying a lubricant layer either to a metal surface or to a metal surface which has been pre-coated with e.g. a conversion coating. The lubricant layer is formed by contacting the surface with an aqueous lubricant composition which has a content in at least one water-soluble, water--containing or/and water-binding oxide or/and silicate and a content in organic polymer material, the organic polymer material used predominantly being monomers, oligomers, co-oligomers, polymers or/and copolymers based on ionomer, acrylic acid/methacrylic acid, epoxide, ethylene, polyamide, propylene, styrene, urethane, the ester(s) or/and salt(s) thereof. The invention also relates to the corresponding lubricant composition, to the lubricant layer produced thereof and to its use.
C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
The invention relates to an aqueous alkaline cleaning composition for cleaning metal surfaces, containing at least one non-ionic surfactant having demulsifying action and based on ethoxylated alkyl alcohols having one or two alkyl groups, each comprising an average of 7.5 to 16.5 carbon atoms, and an average of 5.5 to 18.5 EO groups per alkyl group, and comprising an end group closure or two end group closures, of which at least one end group closure is an isopropyl, isobutyl, tertiary butyl and/or benzyl group, wherein the surfactant is not propoxylated.
The invention relates to a method for coating a metal surface using an aqueous composition, wherein in addition to water the composition also comprises a) an organic film former as the main component, wherein 70 to 100 wt.% of the content of synthetic resin(s) in the organic film former is formed by at least one water soluble or/and water dispersed synthetic resin in the form of polymers, copolymers, block copolymers, or/and graft copolymers based synthetic resins, selected from the group consisting of polycarbonate, polyurethane, ionomer, poly(meth)acrylate, polyester, polyether, or/and polystyrene, wherein the polycarbonate and polyurethane content is at least 10 wt.-% each, b) at least one long-chained alcohol as a film former additive for the organic film former, c) at least one cross-linking agent, d) at least one lubricant, and e) at least one substance based on silane, silicol, or/and siloxane or/and at least one inorganic compound in particle form having a mean particle diameter in the range of 0.005 to 0.3 µm, measured on the scanning electron microscope, and f) optionally at least one organic corrosion inhibitor, at least one organic solvent or/and at least one additive, wherein the metal surface is brought in contact with the aqueous composition, and a polymer film is formed on the metal surface, having a layer thickness within the range of 0.01 to 10 µm. The invention further relates to a corresponding aqueous composition.
B05D 1/38 - Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
B05D 3/10 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
C09D 169/00 - Coating compositions based on polycarbonates; Coating compositions based on derivatives of polycarbonates
40.
SURFACE PRETREATMENT FLUID FOR THE METAL TO BE COATED BY CATIONIC ELECTRODEPOSITION
A surface treatment with a zirconium ion that enables sufficient throwing power and superior anti-corrosion properties to be exhibited when thus surface treated metal base material is subjected to cation electrodeposition coating is provided. A metal surface treatment liquid thereof for cation electrodeposition coating includes zirconium ions, copper ions, and other metal ions, and having a pH of 1.5 to 6.5, in which: the other metal ions are at least one selected from the group consisting of tin ions, indium ions, aluminum ions, niobium ions, tantalum ions, yttrium ions and cerium ions; the concentration of zirconium ions is 10 to 10,000 ppm; the concentration ratio of the copper ions to the zirconium ions is 0.005 to 1 on a mass basis; and the concentration ratio of the other metal ions to the copper ions is 0.1 to 1,000 on a mass basis.
C23C 22/06 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
The invention relates to a process for the demulsifying cleaning of metallic surfaces which may be contaminated with oil(s), with at least one further nonpolar organic compound, with fat(s), with soap(s), with particulate dirt and/or with at least one anionic organic compound using an aqueous, alkaline, surfactant-containing bath solution, with the bath becoming contaminated with oil(s), with at least one further nonpolar organic compound, with fat(s), with soap(s), with particulate dirt and/or with at least one anionic organic compound during cleaning of the metallic surfaces, which is characterized in that the bath contains at least one demulsifying surfactant or/and the latter is added to the bath, in that the bath additionally contains at least one cationic organic compound or/and the latter is added to the bath and in that the bath is maintained in a demulsifying state even in the case of increasing contamination, in particular with at least one anionic organic compound.
The invention concerns a method for coating of a metallic coil or of metallic sheets with an aqueous coating composition comprising at least one compound selected from the group consisting of zirconium compounds, titanium compounds and hafnium compounds whereby the such treated metallic coil or metallic sheets is/are shaped by cold extruding, by deep-drawing, by drawing, by necking, by punching, by wall ironing or by any combination of such process steps to a hollow article like a container or a casing and is then cleaned and optionally further coated either by chemical pre-treatment and then by coating with ink or paint or both or by chemical treatment.
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
B21D 51/26 - Making hollow objects characterised by the use of the objects cans or tins; Closing cans or tins in a permanent manner
C23C 22/36 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides containing also phosphates
C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
43.
METHOD FOR PREPARING METALLIC WORKPIECES FOR COLD FORMING
The invention relates to a method for preparing metallic workpieces for cold forming by contacting the metallic surfaces thereof with an aqueous acid phosphating solution so as to embody at least one phosphate coating and then coating the phosphate-coated surfaces with at least one lubricant in order to embody at least one lubricant layer. According to the inventive method, the phosphating solution essentially contains only calcium, magnesium, or/and manganese as cations that are selected among cations of main group 2 and subgroups 1, 2, and 5 to 8 of the periodic table of chemical elements in addition to phosphate. Furthermore, an alkaline earth metal-containing phosphating solution is free from fluoride and complex fluoride while the phosphating process is carried out electrolytically. The invention further relates to a metallic workpiece that is coated accordingly as well as the use of workpieces coated in said manner.
The present invention is directed to a process for forming a well visible non- chromate conversion coating on surfaces of magnesium and magnesium alloys, to a composition therefor and to a method of use for such coated articles having surfaces of magnesium or any magnesium alloy. The composition is a solution or dispersion comprising a fluorosilicon acid. The composition is preferably an aqueous solution having a pH in the range from 0.5 to 5 and includes often at least one pH adjustment agent. The thereof formed coating is useful to increase the corrosion resistance and the adhesion of magnesium and magnesium alloys to a paint coating, powder coating, e-coat, fluoropolymer coating, self- lubricant layer and adhesive bonding layer. The conversion coating may favorably be coated with a fluoropolymer coating, coated with a silane based sealing or both. The such formed coating is typically of grey mat non-metallic appearance.
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/78 - Pretreatment of the material to be coated
The invention relates to a method for coating metallic surfaces with a silane/silanol/siloxane/polysiloxane-containing mixture, whereby the composition comprises a) at least one compound selected from silanes, silanols, siloxanes and polysiloxanes, b) at least one titanium-, hafnium-, zirconium-, aluminium- or/and boron-containing compound, c) at least one type of cation selected from cations of metals of the 1st to 3rd and 5th to 8th sub- groups, including lanthanides and the second main group of the periodic table of the elements, or/and at least one corresponding compound, a substance d), selected from d1) silicon-free compounds with at least one amino, urea or/and ureido group, d2) nitrite anions or/and compounds with at least one nitro group, d3) compounds based on peroxide, d4) phosphorus-containing compounds, anions of at least one phosphate or/and anions of at least one phosphonate and e) water and f) optionally at least one organic solvent. The invention further relates to corresponding aqueous compositions.
C23C 22/36 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides containing also phosphates
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/68 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
46.
METHOD FOR THE COATING OF METALLIC SURFACES WITH AN AQUEOUS COMPOSITION COMPRISING SILANES, SILANOLS, SILOXANES OR POLYSILOXANES, AND SAID COMPOSITION
The invention relates to a method for coating metallic surfaces with a silane/silanol/siloxane/polysiloxane-containing composition, whereby the composition essentially comprises: a) at least one compound selected from the silanes, silanols, siloxanes and polysiloxanes, b) at least two compounds selected from titanium-, hafnium-, zirconium-, aluminium- or/and boron- containing compounds, optionally c) at least one type of cation selected from cations of metals of the 1st to 3rd and 5th to 8th sub-groups including the lanthanides and the 2nd main group of the periodic table of the elements or/and at least one corresponding compound, d) at least one organic compound selected from monomers, oligomers, polymers, copolymers and block copolymers or/and e) at least one substance affecting the pH value and furthermore, f) water and g) optionally at least one organic solvent. The invention further relates to corresponding aqueous compositions.
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/36 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides containing also phosphates
47.
METHOD OF ANODIZING METALLIC SURFACES AND COMPOSITIONS THEREFORE
A method of treating metallic workpieces with an anodizing solution, compositions of the anodizing solution and the coatings prepared with this anodizing solution for anodizing metallic surfaces, especially surfaces of magnesium, magnesium alloys, aluminum and aluminum alloys, are disclosed. The compositions are basic aqueous solutions comprising a water-soluble inorganic hydroxide, phosphorus and oxygen containing anions, at least one surfactant and an alkaline buffer based on at least one alkaline hydrolyzed silane, on at least one alcohol showing at least one alkaline radical group or on a mixture of them.
The invention relates to a method for coating a metallic surface with an aqueous composition for pretreating before applying another coating or for treating said metallic surface. In addition to water, the composition contains: a) at least one hydrolyzable or at least partially hydrolyzed silane; b) at least one metal chelate, if necessary, also; c) at least one organic film former; d) at least one long-chain alcohol that serves as a film forming aid and/or; e) at least one inorganic compound in particle form. The unsoiled, scoured, cleaned and/or pretreated metallic surface is brought into contact with the aqueous composition and a film is formed on the metallic surface, is subsequently dried, compacted in part or completely by film formation and, if necessary, additionally hardened. The dried and, if necessary, additionally hardened film has a layer thickness ranging from 0.01 to 10 ~m. The invention also relates to corresponding aqueous compositions.
C23C 22/50 - Treatment of iron or alloys based thereon
C23C 22/53 - Treatment of zinc or alloys based thereon
C23C 22/60 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH > 8
C23C 22/68 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
C23C 22/74 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
The invention relates to a method for coating a metallic surface with an aqueous composition for pretreating before applying another coating or for treating said metallic surface. In addition to water, the composition contains: a) at least one hydrolyzable or at least partially hydrolyzed silane; b) at least one metal chelate; c) at least one organic film former, and; d) at least one long-chain alcohol that serves as a film forming aid. The unsoiled, scoured, cleaned and/or pretreated metallic surface is brought into contact with the aqueous composition and a film is formed on the metallic surface, is subsequently dried, compacted in part or completely by film formation and, if necessary, additionally hardened. The dried and, if necessary, additionally hardened film has a layer thickness ranging from 0.01 to 10 ~m. The invention also relates to corresponding aqueous compositions.
C23C 22/50 - Treatment of iron or alloys based thereon
C23C 22/53 - Treatment of zinc or alloys based thereon
C23C 22/60 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH > 8
C23C 22/68 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
C23C 22/74 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
patents
