Patent ID: 8669300

Claim:
A radiation curable binder, comprising the reaction product of a polyisocyanate having 3 free isocyanate moieties with an acrylate having isocyanate-reactive groups and a component selected from the group consisting of a C 12 -C 22 carboxylic acid having one isocyanate-reactive group, wherein said reaction product has the formula (I) wherein L 1 , L 2 , and L 3 are the same or different and denote a linear or branched aliphatic hydrocarbon residue having 4 to 12 carbon atoms, a cycloaliphatic hydrocarbon residue having 6 to 15 carbon atoms, an aromatic hydrocarbon residue having 6 to 15 carbon atoms or a straight-chain or branched araliphatic hydrocarbon residue having 7 to 20 carbon atoms; R 1 and R 2 are the same or different and denote H or CH 3 ; M 1 and M 2 are the same or different and denote a linear or branched alkylene group having 2 to 10 carbon atoms, or a moiety wherein V 1 is a straight or branched chain alkylene group having 3 to 8 carbon atoms which may be substituted with one or more alkyl groups having 1 to 12 carbon atoms, V 2 is a linear or a branched alkylene group having 2 to 10 carbon atoms, preferably 2 to 4 carbon atoms, and n is an integer from 1 to 5 X is N or O Q a linear or branched aliphatic hydrocarbon residue having 12 to 22 carbon atoms, a cycloaliphatic hydrocarbon residue having 12 to 15 carbon atoms, an aromatic hydrocarbon residue having 12 to 15 carbon atoms or a straight-chain or branched araliphatic hydrocarbon residue having 12 to 22 carbon atoms; and W is COOH.