Polycarbonate resin composition for optical disk substrate

The present invention relates to a polycarbonate resin composition that has a viscosity average molecular weight of from 10,000 to 17,000 and has characteristic features in an iron content, a free total phenol content, a content of a releasing agent, a fraction of hydroxyl end groups, a 1H-NMR spect...

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Bibliographic Details
Main Authors CHOSA, MUNEHIRO, TOMIOKA, TATSUYA, KAWATO, HIROSHI
Format Patent
LanguageEnglish
Published 11.04.2004
Edition7
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
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Summary:The present invention relates to a polycarbonate resin composition that has a viscosity average molecular weight of from 10,000 to 17,000 and has characteristic features in an iron content, a free total phenol content, a content of a releasing agent, a fraction of hydroxyl end groups, a 1H-NMR spectrum or the like. The polycarbonate resin composition has less defects due to flash without increase of an addition amount of a releasing agent to an unnecessary level and therefore is suitable for a material of an optical disk substrate.
Bibliography:Application Number: TW200190109772