Patent ID: 6414079
Filing Date: 2002-07-02
Classification: C08G,C09D

Abstract:
A water dilutable one-pack binder for soft feel coating materials, comprising an aqueous dispersion of a hydroxyl-containing polyester-urethane A, obtained by reacting a polyester A1 with hydroxyl groups as functional groups, said polyester A1 having been synthesised from linear, branched or cyclic aliphatic or aromatic difunctional or polyfunctional carboxylic acids A11 and aliphatic linear or branched difunctional or polyfunctional alcohols A12 as reactants, with a polyfunctional isocyanate A2, a compound A3 having at least one hydroxyl, mercapto or amino group which is reactive toward isocyanates and having at least one acid group which reacts only to a minor extent if at all with isocyanates, and also, optionally, with a drying or, preferably, nondrying oil A4, an aqueous solution or dispersion of a triazine resin B which for each molecule derived from a triazine has between 2 and 6 groups selected from methylene groups, methylene ether groups, methylol groups and alkoxymethyl groups, wherein the glass transition temperature of the polyester-urethane A is between âˆ’70 and âˆ’20Â° C., and wherein the hydroxyl number of the polyester-urethane A is from 10 to 120 mg/g.