Abstract: The invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, to a process of their preparation, and to a method of use thereof.

Abstract: The invention relates to an aqueous polyurethane dispersion U comprising at least two aqueously dispersed polyurethanes whereof at least one is an aqueously dispersible polyurethane U1 having a mass-average molar mass Mw1 of at least 10 kg/mol, and at least one is an aqueously dispersible polyurethane U2 having a mass-average molar mass Mw2 of less than 10 kg/mol, a process for the preparation thereof, and a method of use thereof.

Abstract: The invention relates to an aqueously dispersible polyurethane having a specific amount of substance of hydroxyl groups, —OH, of at least 0.6 mol/kg, and additionally satisfying at least two of the following conditions: a) a degree of branching measured as specific amount of substance of tertiary and/or quaternary aliphatic carbon atoms of from 0.01 mol/kg to 0.5 mol/kg, b) a specific amount of urea groups >N—CO—N< of from 0.8 mol/kg to 2 mol/kg, and c) a specific amount of substance of hydroxyl groups, —OH, of from 1 mol/kg to 4 mol/kg, wherein in each case the specific amount of substance is based on the mass of the polyurethane, a process for the preparation thereof, and a method of use thereof.

Abstract: The invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, to a process of their preparation, and to a method of use thereof.

Abstract: The invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks, hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, to a process of their preparation, and to a method of use thereof.

Abstract: The invention relates to an aqueous polyurethane dispersion U comprising at least two aqueously dispersed polyurethanes whereof at least one is an aqueously dispersible polyurethane U1 having a mass-average molar mass Mw1 of at least 10 kg/mol, and at least one is an aqueously dispersible polyurethane U2 having a mass-average molar mass Mw2 of less than 10 kg/mol, a process for the preparation thereof, and a method of use thereof.

Abstract: The invention relates to an aqueously dispersible polyurethane having a specific amount of silicon n(Si)/m(PU) of from 0.05 mol/kg to 1 mol/kg, and a specific amount of urea groups, n(U)/m(PU), >N—CO—N< of from 0.8 mol/kg to 2 mol/kg, wherein in each case the specific amount of substance is calculated as the ratio of the amount of substance n of the entity under consideration, to the mass m(PU) of the polyurethane, to a process for the preparation thereof, and a method of use thereof.

Abstract: The invention relates to mixtures of at least one acrylic resin dispersion A and a second dispersion B which is at least one of a polyurethane dispersion B1 which comprises, in its polymer, moieties derived from grafted fatty acids, and a mixture B2 of a polyurethane dispersion B21 and an aqueously dispersed alkyd resin B22, and to a method of use thereof for coating of porous substrates.

Abstract: The invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks, hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, to a process of their preparation, and to a method of use thereof.

Abstract: The invention relates to a polyurethane P comprising a moiety derived from a polyfunctional isocyanate F, and a hydroxyfunctional compound ABCE made from a grafted fatty acid AB which in turn is made from a fatty acid A having at least one olefinic unsaturation, and grafted with a mixture B of olefinically unsaturated monomers which mixture comprises at least one acid-functional olefinically unsaturated monomer B1, wherein the grafted fatty acid AB has on average at least 1.1 acid groups per molecule, at least one polyhydric alcohol C having at least two hydroxyl groups, and at least one fatty acid E, to a process of making this polyurethane, and to a method of use thereof in the form of an aqueous dispersion to formulate coating compositions.

Abstract: The invention relates to an aqueously dispersible polyurethane having a specific amount of silicon n(Si)/m(PU) of from 0.05 mol/kg to 1 mol/kg, and a specific amount of urea groups, n(U)/m(PU), >N—CO—N< of from 0.8 mol/kg to 2 mol/kg, wherein in each case the specific amount of substance is calculated as the ratio of the amount of substance n of the entity under consideration, to the mass m(PU) of the polyurethane, to a process for the preparation thereof, and a method of use thereof.

Abstract: The invention relates to mixtures of at least one acrylic resin dispersion A and a second dispersion B which is at least one of a polyurethane dispersion B1 which comprises, in its polymer, moieties derived from grafted fatty acids, and a mixture B2 of a polyurethane dispersion B21 and an aqueously dispersed alkyd resin B22, and to a method of use thereof for coating of porous substrates.

Abstract: The invention relates to a polyurethane P comprising a moiety derived from a polyfunctional isocyanate F, and a hydroxyfunctional compound ABCE made from a grafted fatty acid AB which in turn is made from a fatty acid A having at least one olefinic unsaturation, and grafted with a mixture B of olefinically unsaturated monomers which mixture comprises at least one acid-functional olefinically unsaturated monomer B1, wherein the grafted fatty acid AB has on average at least 1.1 acid groups per molecule, at least one polyhydric alcohol C having at least two hydroxyl groups, and at least one fatty acid E, to a process of making this polyurethane, and to a method of use thereof in the form of an aqueous dispersion to formulate coating compositions.

Abstract: A two-pack coating composition comprising curing agents selected from the group consisting of non-blocked poly-functional isocyanates I, polyaziridines Z, and carbodiimides Y, and an aqueously dispersed polyurethane U wherein the polyurethane U comprises building blocks derived from hydroxyl group containing unsaturated fatty acids B21, a process for the production of the polyurethane U, and a method of use thereof in combination with the said curing agents in preparing coating compositions which are particularly useful for wood.

Abstract: The invention relates to an aqueously dispersible polyurethane having a specific amount of substance of hydroxyl groups, —OH, of at least 0.6 mol/kg, and additionally satisfying at least two of the following conditions: a) a degree of branching measured as specific amount of substance of tertiary and/or quaternary aliphatic carbon atoms of from 0.01 mol/kg to 0.5 mol/kg, b) a specific amount of urea groups >N—CO—N< of from 0.8 mol/kg to 2 mol/kg, and c) a specific amount of substance of hydroxyl groups, —OH, of from 1 mol/kg to 4 mol/kg, wherein in each case the specific amount of substance is based on the mass of the polyurethane, a process for the preparation thereof, and a method of use thereof.

Abstract: This invention relates to a self-crosslinking binder for coating compositions comprising an aqueously dispersed resinous component A having at least one carbonyl group of the ketone or aldehyde type per molecule, and a component B having at least two hydrazine or hydrazide groups per molecule, and at least one structural unit —NR1—NR2—CHR3—CHR4—NH—R5 (I) where the radicals R1, R2, R3 and R4 are each individually selected from the group consisting of a hydrogen radical, and a linear or branched alkyl radical having from 1 to 10 carbon atoms, R3 and R4 may additionally be selected from the group consisting of aryl and alkylaryl radicals having from 6 to 15 carbon atoms, and from oxy alkyl radicals with from 1 to 10 carbon atoms, where oxy groups may be inserted into the alkyl chain, or at the end of an alkyl chain, and R5 is selected from the group consisting of a hydrogen radical, alkyl radicals which may be linear, branched or cyclic and may have from 1 to 10 carbon atoms, and residues of the formula —(CH2)n—

Abstract: This invention relates to a self-crosslinking binder for coating compositions comprising an aqueously dispersed resinous component A having at least one carbonyl group of the ketone or aldehyde type per molecule, and a component B having at least two hydrazine or hydrazide groups per molecule, and at least one structural unit —NR1—NR2—CHR3—CHR4—NH—R5 (I) where the radicals R1, R2, R3 and R4 are each individually selected from the group consisting of a hydrogen radical, and a linear or branched alkyl radical having from 1 to 10 carbon atoms, R3 and R4 may additionally be selected from the group consisting of aryl and alkylaryl radicals having from 6 to 15 carbon atoms, and from oxy alkyl radicals with from 1 to 10 carbon atoms, where oxy groups may be inserted into the alkyl chain, or at the end of an alkyl chain, and R5 is selected from the group consisting of a hydrogen radical, alkyl radicals which may be linear, branched or cyclic and may have from 1 to 10 carbon atoms, and residues of the formula —(CH2)n—

Abstract: A two-pack coating composition comprising curing agents selected from the group consisting of non-blocked poly-functional isocyanates I, polyaziridines Z, and carbodiimides Y, and an aqueously dispersed polyurethane U wherein the polyurethane U comprises building blocks derived from hydroxyl group containing unsaturated fatty acids B21, a process for the production of the polyurethane U, and a method of use thereof in combination with the said curing agents in preparing coating compositions which are particularly useful for wood.

Abstract: Water-dilutable polyurethane resins with acid groups, wherein the polyurethane resins contain units derived from oils A which are at least partly unsaturated, from olefinically unsaturated aliphatic acids B or anhydrides B? thereof, from compounds C having functional groups which are reactive towards acid groups or acid anhydride groups, selected from the group consisting of epoxide groups, hydroxyl groups, mercaptan groups and amino groups, and which react in the reaction with the compounds B or B? to form an ester group, a thioester group or an acid amide group, where the compounds C are selected from the group consisting of compounds C? which additionally contain sulfonic acid groups, or carboxylic acid groups which are activated by electron-withdrawing substituents, and compounds C? which additionally contain at least one hydroxyl group which is retained during the reaction with the compounds B or B?, and where at least a mass fraction of 25% of the compounds C consists of compounds C?, and polyfunctional

Abstract: The invention relates to self-crosslinking aqueous polyurethane dispersions containing a crosslinking agent I selected from diamones I1 and dihydrazides I2, and polyurethanes comprising structural elements derived from polyisocyanates A, polyols B having a number average molar mass Mn of at least 400 g/mol, compounds D comprising at least two groups which are reactive compared to isocyanate groups and at least one group able to form anions, low-molecular polyols E that carry no other reactive groups compared to isocyanate groups, compounds F containing at least one group which is reactive compared to isocyanate, and at least one aldehyde-type or ketone-type carbonyl group, and compounds G that are monofunctional compared to isocyanates or contain active hydrogen with different capabilities of reaction and are different from the compounds E. The invention also relates to methods for the production of said dispersions, and coating agents containing the same.