Abstract: The present invention relates to new water-soluble polyaspartic esters and also to their use in aqueous coating compositions.

Abstract: The invention relates to new hydrophilic polyisocyanate mixtures based on polyacrylate-modified polyisocyanates, to a process for preparing them and to their use as a starting component in the production of polyurethane plastics, particularly as crosslinkers for water-soluble or water-dispersible film-forming binders or binder components containing groups that are reactive towards isocyanate groups.

Abstract: High-solids binder combinations comprising polyisocyanates, special lactone-based polyols and polyacrylate-polyols, a process for preparing such binders, and their use for producing coatings. The lactone-based polyols include ?-caprolactone-based polyols having an average hydroxy functionality ?2 and a number-average molecular weight of from 119 to 2000 g/mol. The polyacrylate resins are prepared by copolymerizing optionally functional polybutadienes, aromatic monomers, hydroxyalkyl esters of acrylic or methacrylic acid having primary hydroxyl groups, aliphatic esters of acrylic or methacrylic acid and C1 to C8 monoalcohols, ?,?-unsaturated C3–C7 monocarboxylic or dicarboxylic acids or of one or more monoesters of maleic acid or fumaric acid and C1 to C14 monoalchols.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.

Abstract: Coating compositions comprising polyisocyanates, aliphatic oligocarbonate polyols and polyacrylate polyols are provided. The compositions comprise A) a polyol component composed of a) 1% to 50% by weight of aliphatic oligocarbonate polyols having a number-average molecular weight Mn of 200 to 5000 g/mol and b) 50% to 99% by weight of hydroxy-functional polyacrylate polyols; and B) one or more OH-reactive (poly)isocyanate crosslinkers having an average NCO functionality of ?2.0. A process for preparing the coatings are also provided.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.

Abstract: The present invention relates to aqueous coating compositions containing A) at least one polyisocyanate which contains an average of at least two NCO groups per molecule and in which at least 85% of the NCO groups are blocked with a blocking agent selected from ?-caprolactam and/or a hydroxycarboxylic acid, and B) at least one hydrophilic polyester polyol containing an average of at least two reactive hydroxyl groups per molecule, or a mixture of hydrophilic and non-hydrophilic polyester polyols, wherein component B) has an acid number of ?15 mg KOH/g, a hydroxyl number of 20 to 300 mg KOH/g and a weight average molecular weight, Mw, of >1500 g/mol, wherein the equivalent ratio between the blocked isocyanate groups of component A) and the isocyanate-reactive groups of component B) is 0.5 to 5.0:1.

Abstract: The present invention relates to polyacrylate-modified polyisocyanates which are i) prepared from aromatic, araliphatic, cycloaliphatic and/or aliphatic polyisocyanates having an NCO content of 5% to 25% by weight, an NCO functionality ?2, a viscosity measured as solvent free resin of 150 to 200,000 mPa·s at 23° C., and ii) contain at least one structural unit of the formula (I) wherein R is hydrogen or a methyl group, R1 is an optionally heteroatom-containing hydrocarbon radical and R2 is a hydrocarbon radical having at least one isocyanate group and optionally urethane, allophanate, biuret, uretdione, isocyanurate and/or iminooxadiazinedione groups and n ist a number ?1. The present invention also relates to a process for preparing these polyisocyanates and to binder compositions containing these polyisocyanates, which may be hydrophilically modified, and a compound having NCO-reactive groups.

Abstract: The present invention relates to new water-soluble polyaspartic esters and also to their use in aqueous coating compositions.

Abstract: The invention relates to a powdered thickener preparation based on polyurethane, which can be incorporated particularly well into water-based paints and lacquers and into other aqueous systems, and to their use as rheological additives for thickening preferably aqueous systems.

Abstract: The present invention relates to inner coatings of metal food containers and packaging and to a process for their production. The coatings are appied to the inside of at least a portion of the surface area of containers that are in direct contact with foods or other consumable products and subsequently cured. The coatings include a) at least one polyisocyanate containing an average of at least two NCO groups per molecule, at least 95% of the NCO groups being blocked with a blocking agent, and b) at least one polyhydroxyl compound containing an average of at least two hydroxyl groups per molecule that react with NCO groups.

Abstract: An aqueous coating composition containing A) one or more water-dilutable polyester polyols having an OH number of from 20 to 300 mg KOH/g and an acid number of from 20 to 80 mg KOH/g, obtained by reacting a) 49 to 40 mol % of a carboxylic acid component containing a1) one or more aliphatic, cycloaliphatic, araliphatic and/or aromatic carboxylic acids with a COOH functionality ?2 and a2) optionally, aromatic, cycloaliphatic and/or aliphatic monocarboxylic acids with b) 51 to 60 mol % of an alcohol component containing b1) one or more aliphatic, cycloaliphatic and/or araliphatic polyols with Mn of from 62 to 272 g/mol and an average OH functionality ?2 and b2) optionally, aliphatic, cycloaliphatic and/or araliphatic mono alcohols, B) one or more OH-reactive crosslinkers C) water, D) neutralizing agents and E) optionally solvents, auxiliaries and additives. The aqueous coating compositions can be used for coating metal substrates, such as cans.

Abstract: The present invention relates to a coating composition, a process for its preparation, and to its use for the production of textured coated surfaces on heat-resistant substrates, in which coating composition is based on hydroxyl group-containing binders, cross-linking agents and particular amine compounds.

Abstract: Binder combinations containing polyisocyanates, special lactone-based polyols and polyester polyols and to their use for producing coatings, preferably on plastics.

Abstract: A process for the solventless preparation of ethylenically unsaturated polyurethanes. The process includes preparing a prepolymer from an isocyanate-containing component A) and an isocyanate-reactive component B) in a batch reaction, and reacting the prepolymer with a further component C) in a second, continuous reaction to provide a polyurethane, where at least one of the components A, B and C have ethylenically unsaturated groups.

Abstract: High-solids binder combinations comprising polyisocyanates, special lactone-based polyols and polyacrylate-polyols, a process for preparing such binders, and their use for producing coatings.

Abstract: The invention relates to solvent-free binder mixtures suitable for preparing two-component coating compositions, particularly for high-build applications, and to a process for preparing them.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.

Abstract: Reactive polyurethane hotmelts comprising crystallizing polyesterpolyols based on fumaric acid and 1,6-hexanediol. These hotmelts exhibit good pressure-sensitive adhesive (PSA) properties over a very broad temperature range. The reactive polyurethane hotmelts are prepared by mixing a polyol mixture containing at least on crystallizing polyesterpolyol with an excess of polyisocyanates.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.