Patent ID: 8148471

Claim:
A crosslinkable composition comprising: a) a first component acid-functional acrylic copolymer comprising: i. 85 to 99 parts by weight of an (meth)acrylic acid ester of non-tertiary alcohol; ii. 1 to 15 parts by weight of an acid functional monomer; iii. 0 to 10 parts by weight of a second, non-acid functional, polar monomer; iv. 0 to 5 parts vinyl monomer; and b) a second component epoxy-functional (meth)acryloyl monomer; and c) a third component aziridine crosslinking agent of the formula: wherein R 1 is H or C 1 -C 4 alkyl; z is 0, 1 or 2 R 2 is a H or C 1 -C 4 alkyl; R 3 is a (hetero)hydrocarbyl group: X 1 is —O— or —NR 1 —; Z is —H or a water-solubilizing group.