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1. IN7877/DELNP/2014 - METHOD FOR PRODUCING POLYCARBONATE RESIN AND POLYCARBONATE RESIN COMPOSITION

Office
India
Application Number 7877/DELNP/2014
Application Date 22.09.2014
Publication Number 7877/DELNP/2014
Publication Date 24.04.2015
Publication Kind A
IPC
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
C08L 69/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
69Compositions of polycarbonates; Compositions of derivatives of polycarbonates
Applicants MITSUBISHI CHEMICAL CORPORATION
Inventors SHIBATA Hiroki
NISHIHARA Ryouhei
YAMAMOTO Masanori
KUMAZAWA Katsuhisa
HYOUDOU Narutoshi
TSURUHARA Kenji
Priority Data 2012-083133 30.03.2012 JP
2012-211478 25.09.2012 JP
2012-233039 22.10.2012 JP
Title
(EN) METHOD FOR PRODUCING POLYCARBONATE RESIN AND POLYCARBONATE RESIN COMPOSITION
Abstract
(EN)
Provided are: production of a polycarbonate resin which has excellent characteristics such as transparency heat resistance mechanical strength and impact resistance while having a good color tone; and a polycarbonate resin composition which contains the polycarbonate resin. A method for producing a polycarbonate resin wherein a carbonic acid diester and a dihydroxy compound are subjected to a polycondensation reaction in the presence of a transesterification catalyst. This method for producing a polycarbonate resin is characterized in that the transesterification catalyst contains a phosphorus compound represented by general formula (1) and/or (2) and at least one basic compound that is selected from the group consisting of compounds of the group 1 elements of the long form periodic table (excluding hydrogen) compounds of the group 2 elements of the long form periodic table basic boron compounds basic phosphorus compounds and nitrogen containing basic compounds.