Patent ID: 8114948

Claim:
A copolymer composition comprising: a copolymer with two or more types of repeat units in accordance with structural formula I: such types of repeat units being derived from monomers where X is selected from —CH 2 —, —CH 2 —CH 2 — and O; m is an integer from 0 to 5; and each occurrence of R 1 , R 2 , R 3 and R 4 is independently selected from one of the following groups: H, C 1 to C 25 linear, branched, and cyclic alkyl, aryl, aralkyl, alkaryl, alkenyl and alkynyl; C 1 to C 25 linear, branched, and cyclic alkyl, aryl, aralkyl, alkaryl, alkenyl and alkynyl containing one or more hetero atoms selected from O, N, and Si; an epoxy containing group in accordance with structural formula II: where A is a linking group selected from C 1 to C 6 linear, branched, and cyclic alkylene, and R 23 and R 24 are independently selected from H, methyl and ethyl; an epoxy containing group in accordance with structural formula III: where p is an integer of from zero to 6, R 23 and R 24 are as defined above, and each occurrence of R 21 and R 22 are independently selected from H, methyl and ethyl; —(CH 2 ) n C(O)OR 5 , —(CH 2 ) n C(O)OR 6 , —(CH 2 ) n OR 6 , —(CH 2 ) n OC(O)R 6 , —(CH 2 ) n C(O)R 6 , and —(CH 2 ) n OC(O)OR 6 ; and any combination of two of R 1 , R 2 , R 3 , and R 4 linked together by a linking group selected from C 1 to C 25 linear, branched, and cyclic alkylene and alkylene aryl, wherein n is an integer of from 1 to 25, R 5 is an acid labile group and R 6 is selected from H, C 1 to C 6 linear, branched, and cyclic alkyl, an epoxy containing group of structural formula II as defined above; and where one of R 1 , R 2 , R 3 ,or R 4 of one type of repeat unit is a pendant epoxy containing group in accordance with formulae II or III, and the others of R 1 , R 2 , R 3 ,or R 4 are each H.