Title:
COPOLYMER, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/011383
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application is a catalyst for preparing a cyclic olefin copolymer, which catalyst comprises a main catalyst as shown in formula (1-a). D is a bridging group, and Q is a metal center; R5, R6, R7 and R8 independently comprise a hydrogen atom, a hydrocarbyl or a silicon-containing substituent, with the silicon-containing substituent being linked to the carbon atom corresponding to the substituted position by means of a silicon atom; Ra and Rb are a carbon-containing group, a silicon-containing group, a germanium-containing group or a tin-containing group; at least one of R5, R6, R7 and R8 is a silicon-containing substituent, and/or at least one of Ra and Rb is a silicon-containing group; and R9, R13, R14 and R18 independently comprise a hydrogen atom, a hydrocarbyl or a hydrocarbyloxy. By using this catalyst, a low-molecular-weight cyclic olefin copolymer can be prepared without the additional introduction of a molecular weight regulator such as hydrogen or propylene, and the cyclic olefin copolymer also has a moderate glass transition temperature.
Inventors:
JIAN ZHONGBAO (CN)
ZHANG YIXIN (CN)
CUI LEI (CN)
ZOU HAILIANG (CN)
CHEN CHEN (CN)
JI HEYUAN (CN)
ZHANG YIXIN (CN)
CUI LEI (CN)
ZOU HAILIANG (CN)
CHEN CHEN (CN)
JI HEYUAN (CN)
Application Number:
PCT/CN2022/109300
Publication Date:
February 09, 2023
Filing Date:
July 30, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
C08F232/00; C08F4/642
Foreign References:
| CN109627366A | 2019-04-16 | |||
| CN106674429A | 2017-05-17 | |||
| CN105884971A | 2016-08-24 | |||
| CN112703435A | 2021-04-23 | |||
| CN106674427A | 2017-05-17 | |||
| CN106674428A | 2017-05-17 | |||
| CN107011485A | 2017-08-04 | |||
| CN1346373A | 2002-04-24 | |||
| US20090088543A1 | 2009-04-02 | |||
| JPH07258319A | 1995-10-09 | |||
| KR20190081822A | 2019-07-09 | |||
| CN1327448A | 2001-12-19 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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