Patent ID: 6340737
Filing Date: 2002-01-22
Classification: C08G

Abstract:
A polycarbonate resin produced by reaction of a compound represented by the following general formula (A), a compound represented by the following general formula (B), a compound represented by the following general formula (C) and a carbonic acid ester-forming compound, wherein an amount of a compound represented by the general formula (A) is 30 to 80% by weight to total amount of a compound represented by the general formula (A) and a compound represented by the general formula (B), and a compound represented by the general formula (C) is 1 to 80% by weight to total amount of a compound represented by the general formula (A), a compound represented by the general formula (B) and a compound represented by the general formula (C), and an intrinsic viscosity of said polycarbonate resin is 0.2 to 1.0 dl/g; wherein R1, R2, R3 and R4 are, each independently, hydrogen, an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms and when said group has carbon atom, said group can have an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms as a substituent(s); wherein R5, R6, R7 and R8 are, each independently, hydrogen, an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms and when said group has carbon atom, said group can have an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms as a substituent(s) R9, R10, R11 and R12 are, each independently, hydrogen, an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms and when said group has carbon atom, said group can have an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms as a substituent(s); R13 is an aliphatic group having 1 to 6 carbon atoms or absent; X is â€”SiO(R14)(R15)â€”, â€”SiO(R16)(R17)â€”, a homopolymer of â€”SiO(R14)(R15)â€” or â€”SiO(R16)(R17)â€” having an average polymerization degree of more than 0 and 200 or below or a random copolymer of â€”SiO(R14)(R15)â€” and â€”SiO(R16)(R17)â€” having an average polymerization degree of more than 0 and 200 or below; R14, R15, R16 and R17 are, each independently, hydrogen, an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms and when said group has carbon atom, said group can have an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms as a substituent(s); wherein R18 and R19 are, each independently, hydrogen, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms and when said group has carbon atom, said group can have an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms as a substituent(s);Y is; wherein R20 and R21 are, each independently, hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an aryl group having 6 to 12 carbon atoms, or an aliphatic ring or a heterocycle in combination of R20 and R21 and when said group has carbon atom, said group can have an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms as a substituent(s) and a is an integer of 0 to 20, wherein said intrinsic viscosity is measured for the polycarbonate resin in a methylene chloride solution of 0.5 g/dl at 20Â° C.