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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1. Verfasser:	KANNO, TATSUYA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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
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Beschreibung
Zusammenfassung:	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.