REDUCED COLOR POLYCARBONATE COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES THEREOF

A method of preparing a polycarbonate composition, including: melt polymerizing in a polymerization unit a dihydroxy compound with a diaryl carbonate and removing a stream of color inducing species containing an isopropenyl phenyl-containing group from the polymerization unit, to form a polycarbonat...

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Bibliographic Details
Main Authors BOJARSKI, Aaron David, GARCIA AGUDO, Jorge A
Format Patent
LanguageEnglish
French
Published 26.07.2018
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
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 of preparing a polycarbonate composition, including: melt polymerizing in a polymerization unit a dihydroxy compound with a diaryl carbonate and removing a stream of color inducing species containing an isopropenyl phenyl-containing group from the polymerization unit, to form a polycarbonate composition, wherein the polycarbonate has a color inducing species containing an isopropenyl phenyl-containing group level below 170 ppm is provided. L'invention concerne un procédé de préparation d'une composition de polycarbonate, comprenant : la polymérisation à l'état fondu dans une unité de polymérisation d'un composé dihydroxy avec un carbonate de diaryle et l'élimination d'un flux d'espèces induisant une couleur, contenant un groupe contenant isoprényl-phényle provenant de l'unité de polymérisation, pour former une composition de polycarbonate, le polycarbonate présentant des espèces induisant une couleur contenant un niveau de groupe contenant isoprényl-phényle inférieur à 170 ppm.
Bibliography:Application Number: WO2018IB50268