Patent ID: 7314900

Claim:
An aqueous dispersion, comprising at least one polymer (a), comprising at least one water dispersible site per molecule and hydroxyl groups in an amount of from 2.5 to 6.0 mEQ OH/gram NV of polymer (a), at least one crosslinking agent (b) comprising one or more blocked functional groups (f b ) that are reactive with the hydroxyl groups of polymer (a) after unblocking, wherein crosslinking agent (b) has a (T g of from 40 to 70° C./105 to 158° F. and is a solid at 23.9° C./75° F. when at 100% solids, wherein crosslinking agent (b) is melt mixed into polymer (a) to provide a first dispersion and said first dispersion is emulsifed in water to provide an aqueous dispersion.