Aromatic polycarbonate copolymer and optical disk having a substrate of the same

An aromatic polycarbonate copolymer for an optical disk substrate is produced by combining at least two blsphenols selected from those of the following general formulae (I), (II), and (III): wherein R1, R2, R3, and R4 are each hydrogen, a straight-chain or branched alkyl group having 1 to 8 carbon a...

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description An aromatic polycarbonate copolymer for an optical disk substrate is produced by combining at least two blsphenols selected from those of the following general formulae (I), (II), and (III): wherein R1, R2, R3, and R4 are each hydrogen, a straight-chain or branched alkyl group having 1 to 8 carbon atoms, or a phenyl group.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Aromatic polycarbonate copolymer and optical disk having a substrate of the same
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