| 摘要 |
PCT No. PCT/EP96/01101 Sec. 371 Date Mar. 7, 1997 Sec. 102(e) Date Mar. 7, 1997 PCT Filed Mar. 11, 1996 PCT Pub. No. WO96/28493 PCT Pub. Date Sep. 19, 1996The present invention is in the field of optical polymers, more particularly, optical polycarbonates for use in optical components. The present invention provides a cross-linkable or cross-linked optical polycarbonate built up from a monomer mixture comprising: compounds according to formula 1: wherein: P stands for -Cl, O-R, an imidazole group or -O-Ph, Q stands for -Cl, O-R, an imidazole group or -O-Ph, R stands for an alkylene group having 1-6 carbon atoms, Ph stands for phenyl, A stands for -Ph-, halogenated -Ph-, (halo)alkyl substituted -Ph, -Ph-Ph-, halogenated -Ph-Ph, -Ph-C(CH3)2-Ph-, -Ph-SO2-Ph-, -Ph-C(CF3)-Ph-, halogenated -Ph-C(CH3)2-Ph, halogenated -Ph-C(CF3)2-Ph, phenolphtalein, -Ph-C(Ph)2-Ph, m is an integer from 0 to 5, with the A-groups being the same or different, optionally, diols, optionally, a dihydroxy-functionalised NLO-compound, and 2,3 dihydroxy propyl methacrylate as a crosslinker. |
