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1. (WO2017155306) METHOD FOR ECONOMICAL PRODUCING OF RESIN COMPOSITION COMPRISING POLYALKYLENE CARBONATE WITH IMPROVED THERMAL STABILITY AND PROCESSABILITY

Pub. No.:    WO/2017/155306    International Application No.:    PCT/KR2017/002521
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 09 00:59:59 CET 2017
IPC: C08G 64/34
C08G 64/40
C08J 3/09
B29B 9/06
Applicants: LG CHEM, LTD.
주식회사 엘지화학
Inventors: LEE, Jun Wye
이준의
PARK, Seung Young
박승영
LEE, Jin Woo
이진우
CHO, Hyun Ju
조현주
SOHN, Jung Min
손정민
KIM, Yoon Jung
김윤정
SEONG, Bo Hyun
성보현
JUNG, Taek Jun
정택준
CHO, Yun Ki
조윤기
AN, Yong Hee
안용희
KIM, Sung-Kyoung
김성경
KIM, Hyun Min
김현민
Title: METHOD FOR ECONOMICAL PRODUCING OF RESIN COMPOSITION COMPRISING POLYALKYLENE CARBONATE WITH IMPROVED THERMAL STABILITY AND PROCESSABILITY
Abstract:
The present invention relates to a method for an economical production of a resin composition comprising polyalkylene carbonate having improved thermal stability and processability. More specifically, provided is a method for producing a resin composition comprising polyalkylene carbonate, comprising the steps of: recovering monomers after polymerizing carbon dioxide and epoxide in the presence of a zinc-based catalyst and a solvent; removing the catalyst and recovering a raw material; blending a thermal stable resin with a solution in order to improve thermal stability and processability; and using a stirred flash drum and an extruded or kneaded type volatilizer to remove the solvent and byproducts from the reaction mixture.