Patent ID: 7138463
Filing Date: 2006-11-21
Classification: C08F,C09D

Abstract:
1. A process for preparing a carbamate or terminal urea functional vinyl polymer, comprising steps of: (a) reacting a compound having an hydroxyl group and a carbamate group, terminal urea group, or a group that can be converted to a carbamate or terminal urea group, with a cyclic carboxylic acid anhydride group to form a half-ester product with a free acid group; and (b) reacting the free acid group with an epoxide group, wherein one of the cyclic carboxylic acid anhydride group or the epoxide group is pendant to a vinyl polymer and further wherein, when the compound having an hydroxyl group has a group that can be converted to a carbamate or terminal urea group, the group is converted to the carbamate or terminal urea group after step (a).