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1. EP3680271 - NOVEL ALIPHATIC POLYCARBONATE

Office European Patent Office
Application Number 18849982
Application Date 03.09.2018
Publication Number 3680271
Publication Date 15.07.2020
Publication Kind A1
IPC
C08G 64/02
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
02Aliphatic polycarbonates
C08K 3/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
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
CPC
C08G 64/02
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
02Aliphatic polycarbonates
C08K 3/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
3Use of inorganic substances as compounding ingredients
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 NATIONAL UNIV CORPORATION TOKYO UNIV OF AGRICULTURE AND TECHNOLOGY
SUMITOMO SEIKA CHEMICALS
Inventors NAKANO KOJI
NISHIOKA KIYOSHI
Designated States
Priority Data 2017169824 04.09.2017 JP
2018032541 03.09.2018 JP
Title
(DE) NEUARTIGES ALIPHATISCHES POLYCARBONAT
(EN) NOVEL ALIPHATIC POLYCARBONATE
(FR) NOUVEAU POLYCARBONATE ALIPHATIQUE
Abstract
(EN)
The present invention provides an aliphatic polycarbonate that can be thermally decomposed (dewaxed) at a relatively low temperature. The aliphatic polycarbonate comprises a constituent unit represented by formula (1):wherein R1, R2, and R3are identical or different, and each represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 15 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; R4represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; and n is an integer of 0 to 3.

(FR)
La présente invention concerne une résine de polycarbonate aliphatique qui peut être utilisée comme liant thermiquement décomposable apte à effectuer une décomposition thermique (dégraissage) à basse température. Le polycarbonate aliphatique est un polycarbonate aliphatique contenant un motif structurel représenté par la formule (1) (dans la formule, R1, R2, et R3 sont identiques ou différents et représentent un atome d’hydrogène, un groupe alkyle en C1 à C15 éventuellement substitué, ou un groupe aryle en C6 à C20 éventuellement substitué, R4 représente un groupe alkyle en C1 à C20 éventuellement substitué ou un groupe aryle en C6 à C20 éventuellement substitué, et n représente un nombre entier d’une valeur de 0 à 3).