Patent ID: 7118847

Claim:
A polymer comprising as polymerized units (i) one or more spirocyclic olefin monomers of formulae I or II wherein Z=CH 2 , C(O), C(S), O or S; X and Y are independently chosen from CH 2 , C(O), C(S), O or NR 2 ; and R 2 =(C 1 –C 8 )alkyl or substituted (C 1 –C 8 )alkyl; provided that at least one of X, Y and Z is selected from C(O) and C(S); and (ii) one or more cyclic olefin monomers having one or more substituent groups chosen from (C 1 –C 12 )halohydroxyalkyl; wherein the spirocyclic monomer is optionally substituted.