Patent ID: 7144965

Claim:
An energy polymerizable composition comprising: (a) a first polymerizable monomer of formula P 2 C═CH—C 6 X 4-n Z n , where (I) P═H or D, Z═—Y—C 6 X 5 , —Y—W—U-[(o-, m-, p-C 6 X 4 —CH═CH 2 )] m , and mixtures thereof; (ii) independently, Y and U═O, S, NH, or is not present; (iii) W is a linking group selected from the group consisting of aromatic, polycyclic aromatic (fused-ring), 5- or 6-member heterocyclic aromatic and polycyclic-heterocyclic compounds and halogenated derivatives thereof; (iv) X═F, Cl, CF 3 and R f , and mixtures thereof, and R f is a C 2 –C 5 hydrocarbon in which 50% or more of C—H bonds are replaced by C—F bonds; and (v) M and n are integers in the range of 1–3; (b) optionally, a second polymerizable monomer or oligomer having a polymerizable vinylic group; and (c) optionally, a polymerization initiator compound.