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1. EP3571240 - REDUCED COLOR POLYCARBONATE COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES THEREOF

Office
European Patent Office
Application Number 18719639
Application Date 16.01.2018
Publication Number 3571240
Publication Date 27.11.2019
Publication Kind A1
IPC
C08G 64/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
64Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
04Aromatic polycarbonates
06not containing aliphatic unsaturation
C08G 64/30
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
64Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
20General preparatory processes
30using carbonates
CPC
C08G 64/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
64Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
04Aromatic polycarbonates
06not containing aliphatic unsaturation
C08G 64/307
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
64Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
20General preparatory processes
30using carbonates
307and phenols
Applicants SABIC GLOBAL TECHNOLOGIES BV
Inventors BOJARSKI AARON DAVID
GARCIA AGUDO JORGE A
Designated States
Priority Data 17382020 17.01.2017 EP
Title
(DE) FARBPOLYCARBONATZUSAMMENSETZUNGEN, VERFAHREN ZUR HERSTELLUNG UND ARTIKEL DARAUS
(EN) REDUCED COLOR POLYCARBONATE COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES THEREOF
(FR) COMPOSITIONS DE POLYCARBONATE DE COULEUR RÉDUITE, PROCÉDÉS DE PRÉPARATION ET ARTICLES ASSOCIÉS
Abstract
(EN)
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.

(FR)
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.

Also published as
EP2018719639