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1. (WO2017033749) PROCESS FOR PRODUCING (METH)ACRYLOYL-TERMINATED POLYISOBUTYLENE-BASED POLYMER

Pub. No.:    WO/2017/033749    International Application No.:    PCT/JP2016/073556
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Thu Aug 11 01:59:59 CEST 2016
IPC: C08F 6/06
C08F 8/00
C08F 10/10
Applicants: KANEKA CORPORATION
株式会社カネカ
Inventors: OHISHI, Takahiro
大石 孝洋
TOKIZANE, Masashi
時實 昌史
Title: PROCESS FOR PRODUCING (METH)ACRYLOYL-TERMINATED POLYISOBUTYLENE-BASED POLYMER
Abstract:
The purpose of the present invention is to provide a process which is for producing a (meth)acryloyl-terminated polyisobutylene-based polymer having excellent transparency and which is an easy process applicable to actual production processes. The process for producing a (meth)acryloyl-terminated polyisobutylene-based polymer is characterized by comprising: a living cationic polymerization step in which a Lewis acid catalyst is used; a terminal-functional-group formation step in which a Lewis acid catalyst is used; a step in which the Lewis acid catalysts are deactivated with 30-80ºC water; and a step in which the reaction mixture is cleaned with an aqueous alkali solution.