Patent ID: 6610762
Filing Date: 2003-08-26
Classification: A61L,C08F,Y10T

Abstract:
A switchable adhesive composition capable of being influenced by radiation to change from a tacky to a less tacky state which includes a switchable polymer capable of being influenced by radiation to change from one state to another, said switchable polymer comprising a backbone polymeric moiety having a plurality of curable moieties bonded thereto, wherein at least a proportion of the curable moieties each comprises a free-radically active group, said polymer being manufactured by reacting:a) an acrylic backbone polymer containing unreacted carboxylic acid groups and optionally a cyclic anhydride group, a cyclic amide group, or a hydroxyester, with b) a curable compound that possesses a free-radically active vinylic group and has a primary amine functionality.