Patent application number | Description | Published |
20080197020 | Method for Producing Painted, Flat Metallic Moulded Bodies - Flat shaped bodies which comprise at least one metallic layer, a conversion coat applied thereto, and at least one paint coat, and methods for producing such bodies starting from flat, metallic, semifinished products. | 08-21-2008 |
20080199714 | Method For the Passivation of Metal Surfaces With Compositions Comprising Polymers With Acid Groups and Waxes - Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax. | 08-21-2008 |
20080233390 | Polymer Composition For Corrosion Protection - The present invention relates to a composition for coating metallic surfaces, comprising a binder component; a corrosion inhibitor polymer based on an ethylenically monocarboxylic and dicarboxylic acid and, if appropriate, further ethylenical monomers, a solvent component, and, if appropriate, crosslinkable components, and also pigment/filler components. The invention further relates to processes for its preparation and also to methods of coating a metallic surface using the composition, to coated metallic surfaces thus obtained, and to the use of the composition as a primer, particularly in coil coating or in atmospheric corrosion control. After drying, the applied layer preferably has a thickness of at least 3.1 μm and is therefore thicker than a typical pretreatment layer. | 09-25-2008 |
20080269446 | Method for Producing Carboxylate-Rich Copolymers from Monoethylenically Unsaturated Monocarboxylic and Dicarboxylic Acids and Carboxylate-Rich Copolymers Having a Low Neurtralization Degree - Partially neutralized carboxylate-rich copolymers, processes for their preparation and methods of using the same are disclosed, the copolymers comprising: monomers (A), (B), and (C); wherein monomer (A) comprises at least one monoethylenically unsaturated monocarboxylic acid, and is present in an amount of 30% to 79.99% by weight; wherein monomer (B) comprises at least one monoethylenically unsaturated dicarboxylic acid selected from the group consisting of acids corresponding to general formula I, acids corresponding to general formula II, anhydrides thereof, and other hydrolyzable derivatives thereof, and is present in an amount of 20.01% to 70% by weight: | 10-30-2008 |
20090007990 | METHOD FOR PASSIVATING METALLIC SURFACES BY USING ITACONIC ACID HOMOPOLYMERS OR COPOLYMERS - A process for passivating a metallic surface by treating it with an acidic aqueous preparation comprising at least one itaconic acid homo- or copolymer. Passivating layers and metallic surfaces obtainable by means of the process. | 01-08-2009 |
20090029155 | Preparation For And Method Of Applying Corrosion Control Coats - Preparation for and a method of applying corrosion control coats to metallic surfaces, particularly the surfaces of metallic structures or metal constructions, the preparation comprising at least one binder system curable under atmospheric conditions, a dicarboxylic acid-olefin copolymer, and a finely divided filler, pigment or dye. Coated metallic surface obtainable by means of the method, especially the surface of metallic structures or metal constructions. | 01-29-2009 |
20090078087 | PROCESS FOR THE ACID DIGESTION OF METAL-CONTAINING COMPOUNDS - Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99. | 03-26-2009 |
20090186231 | PROCESS FOR COATING PLASTIC OR METAL SURFACES - A method of coating surfaces of plastic or metal, which comprises treating the plastic or metal surface in question with an aqueous dispersion comprising
| 07-23-2009 |
20090208735 | Method for Coating Metals - Process for coating metallic surfaces with a copolymer of olefins and/or dienes, acidic monomers and, optionally, further monomers, the metal surfaces being contaminated with oil and/or grease, and the contamination not being removed prior to coating. Metallic surface obtainable by means of the process. | 08-20-2009 |
20090324839 | METHOD OF PASSIVATING METALLIC SURFACES BY MEANS OF COPOLYMERS HAVING PHOSPHORIC ACID AND/OR PHOSPHONIC ACID GROUPS - Process for passivating metallic surfaces, and a preparation suitable for implementing the process, comprising at least water, an acid, and a copolymer of functionalized (meth)acrylic esters, monomers containing phosphoric and/or phosphonic acid groups, monomers having COOH groups, and, if appropriate, further monomers. Copolymer which comprises said monomers. | 12-31-2009 |
20100143632 | COATING COMPOSITION COMPRISING POLYETHYLENIMINE AND POLY(METH)ACRYLIC ACID - A composition comprising polyethylenimine, poly(meth)acrylic acid or salts thereof and, if appropriate, auxiliaries and additives typical for coating materials or paints, and also solvents, is used for corrosion control for the coating of carbon steel/black steel. | 06-10-2010 |
20100175792 | CARBOXYLATE-CONTAINING POLYMERS FOR METAL SURFACE TREATMENT - The present invention relates to a composition for treating surfaces, comprising a copolymer as component A, synthesized from (meth)acrylic acid or salts thereof, a carboxylate-containing monomer and/or monomers containing groups containing phosphoric and/or phosphoric acid or salts thereof, and further comonomers if desired, to a passivating layer on a metal surface, which comprises component A, to a process for forming said passivating layer, and to the use of the composition of the invention to passivate a metal surface. | 07-15-2010 |
20100227179 | METHOD FOR TREATING SURFACES - A method of treating surfaces using one or more than one copolymer (A) comprising as comonomers in copolymerized form:
| 09-09-2010 |
20100273015 | COPOLYMERS, METHOD FOR PRODUCING THEM AND THEIR USE FOR TREATING SURFACES - Copolymers comprising as comonomers in copolymerized form: | 10-28-2010 |
20110017352 | CONTINUOUS METHOD FOR TREATING THE SURFACE OF METAL STRIPS - A continuous method for surface treatment of metal strips applies a finish coat having a thickness of not more than 3 μm, the apparatus employed for application being equipped with at least one IR sensor which faces a coated side of the strip, operates in reflection geometry, and serves to measure the coat thickness of the finish coat, with the strip running. | 01-27-2011 |
20110151266 | ANTICORROSION PIGMENTS WITH POSITIVE ZETA POTENTIAL - The present invention relates to the use of oxidic nanoparticles having an average particle size of 2 to 2000 nm in combination with at least one polycationic polymer as corrosion protection for metallic surfaces and also to a method of protecting metallic surfaces from corrosion, comprising the steps of:
| 06-23-2011 |
20110217222 | PROCESS FOR THE ACID DIGESTION OF METAL-CONTAINING COMPOUNDS - Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99. | 09-08-2011 |
20110236716 | METHOD FOR PRODUCING SHAPED ELEMENTS FROM SHEET STEEL GALVANIZED ON ONE OR BOTH SIDES - A method of producing shaped articles made from single-sidedly or double-sidedly galvanized steel sheet, starting from galvanized steel strip, at least one of the steps of the method being a transport operation, and in which, for protection from black-spot corrosion, a corrosion preventive oil is applied which comprises N-acyl derivatives of sarcosinic acid as corrosion inhibitor. | 09-29-2011 |
20110294977 | POLYALKYLENEPOLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - The invention relates to a process for the preparation of polyalkylenepolyamines by catalyzed alcohol amination, in which | 12-01-2011 |
20120080120 | METHOD FOR PASSIVATING A METALLIC SURFACE - The present invention relates to a method for passivating metallic surfaces, wherein the metal surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one polyamine (P), the pH of the composition being in the range from 0.5 to 2. | 04-05-2012 |
20120080121 | METHOD FOR PASSIVATING METALLIC SURFACES WITH AQUEOUS COMPOSITIONS COMPRISING SURFACTANTS - A method for passivating metallic surfaces, wherein the surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one surfactant (T) based on alkoxylated alcohols, the pH of the composition being in the range from 0.5 to 5, enables durable protection of the surface. | 04-05-2012 |
20120164474 | METHOD FOR PRODUCING MOLDED BODIES FROM SHEET STEEL GALVANIZED ON ONE OR BOTH SIDES - A method of producing shaped articles made from single-sidedly or double-sidedly galvanized steel sheet, starting from galvanized steel strip, at least one of the steps of the method being a transport operation, and in which, for protection from black-spot corrosion, a corrosion preventive oil is applied which comprises at least one phosphoric acid polyoxyalkylene ester. | 06-28-2012 |
20120231284 | PROCESS FOR COATING PLASTIC OR METAL SURFACES - A method of coating surfaces of plastic or metal, which comprises treating the plastic or metal surface in question with an aqueous dispersion comprising
| 09-13-2012 |
20120322950 | BRANCHED POLYESTERS WITH SULFONATE GROUPS - Branched polyesters with sulfonate groups can be obtained by reacting components A, B, optionally C, and optionally D to yield branched polyesters, then reacting these branched polyesters with hydrogen sulfite. Component A is at least one α,β-olefinically unsaturated dicarboxylic acid, component B is at least one di- or higher-functional alcohol, optional component C is at least one di- or higher-functional carboxylic acid or hydroxycarboxylic acid without an α,β-olefinically unsaturated bond, and optional component D is at least one compound of formula CH | 12-20-2012 |
20130115470 | PREPARATION FOR PASSIVATING METALLIC SURFACES, COMPRISING ACID-FUNCTIONAL POLYMERS AND TI OR ZR COMPOUNDS - Preparation for passivating metallic surfaces, comprising at least one itaconic acid homopolymer or copolymer (A), water and/or another solvent suitable for dissolving, dispersing, suspending or emulsifying the homopolymer or copolymer (A), as component (B); at least one organic Ti or Zr compound (C); and optionally at least one Zn or Mg salt (D). Process for producing a passivating layer on a metal surface by treating the metal surface with such a preparation. Passivating layer on a metallic surface, obtainable by such a process. Metallic surface comprising such a passivating layer. Use of inventive preparations for passivating a metal surface. | 05-09-2013 |
20130244024 | MODIFIED SHEET SILICATES AS CORROSION PROTECTION - Use of modified sheet silicates (a) in combination with at least one polycationic polymer (b) for protecting metallic surfaces against corrosion. Metallic surfaces which are protected against corrosion by means of modified sheet silicates (a) in combination with at least one polycationic polymer (b). Method of protecting metallic surfaces against corrosion, which comprises applying formulations to the metallic surface to be protected. Anticorrosion composition comprising modified sheet silicates (a) and at least one polycationic polymer (b). | 09-19-2013 |
20140141269 | MIXTURES FOR COATING METAL SURFACES COMPRISING ORGANIC CORROSION INHIBITORS - A method for coating a metallic surface by contacting it with an aqueous copolymer dispersion, wherein the aqueous copolymer dispersion comprises an effective amount of organic phosphorus-containing corrosion inhibitors, the copolymers present in the dispersion being constructed from 20 to 95 weight % of monoethylenically unsaturated hydrocarbons and/or hydrocarbons having two conjugated double bonds, from 5 to 80 weight % of monoethylenically unsaturated monomers which contain acid groups, and/or anhydrides or salts thereof. A metallic surface coated with a copolymer, obtainable by methods of this kind, which can also further comprise one or more layers of paint applied one atop another. | 05-22-2014 |