SILICONE-POLYCARBONATE BLOCK COPOLYMER AND POLYCARBONATE COMPOSITION WITH REDUCED HAZE,AND THEIR PRODUCTION

A method is provided for making silicone polycarbonate block copolymers and polycarbonate blends thereof having reduced haze. Silicone polycarbonate block copolymer formation is effected by using a phase transfer catalyst to generate polycarbonate oligomers having at least one terminal haloformate g...

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Bibliographic Details
Main Authors PIITAA DEIBUITSUDO FUERUPUSU, YUUJIN POORINGU BOODEN, DANIERU RUUSU JIYOISU, GEIRII CHIYAARUZU DEIBUISU, JIEEMUZU FURANKURIN FUUBUAA
Format Patent
LanguageEnglish
Published 02.07.1996
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A method is provided for making silicone polycarbonate block copolymers and polycarbonate blends thereof having reduced haze. Silicone polycarbonate block copolymer formation is effected by using a phase transfer catalyst to generate polycarbonate oligomers having at least one terminal haloformate group followed by the late addition of hydroxyaryl terminated polydiorganosiloxane.
Bibliography:Application Number: JP19950181171