COPOLYMER, PREPARATION METHOD THEREFOR, VULCANIZED RUBBER AND USE THEREOF

WIPO Patent Application WO/2024/088247

A1

The present invention relates to the field of butadiene rubber. Disclosed are a copolymer, a preparation method therefor, vulcanized rubber and a use thereof. The copolymer comprises a polyethylene segment and a butadiene rubber segment. Based on the total weight of the copolymer, the weight ratio of the polyethylene chain segment to the butadiene rubber chain segment is 0.1:99.9-80:20. In the butadiene rubber chain segment, based on the total amount of the butadiene rubber chain segment, the content of cis-1,4-structure is 90-98.5 mol％. The continuous methylene sequence length in the copolymer is at least 165. By means of synthesizing the copolymer by using in-situ polymerization, a polyethylene butadiene rubber block copolymer has a compatibilization effect, the dissolution of a reinforcement polyethylene phase and a butadiene rubber matrix is facilitated, a copolymer with excellent dispersibility of reinforced filler can be obtained without later compounding, and the problems of phase separation, interface failure, etc. existing in blending are solved.

SUN WEI (CN)
XU LIN (CN)
DU YING (CN)
ZHAO LINA (CN)

PCT/CN2023/126161

May 02, 2024

October 24, 2023

Click for automatic bibliography generation  

CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC BEIJING RES INSTITUTE OF CHEMICAL INDUSTRY CO LTD (CN)

C08F297/06; C08F4/70; C08F210/02; C08F236/06; C08F293/00

WO2012014420A1	2012-02-02
WO2012164914A1	2012-12-06

CN113480690A	2021-10-08
CN105669883A	2016-06-15
CN103154061A	2013-06-12
CN108690167A	2018-10-23
JP2015212332A	2015-11-26
CN112794964A	2021-05-14

RUNPING & PARTNERS (CN)

View/Download PDF      PDF Help

Previous Patent: EARPIECE

Next Patent: DISPLAY METHOD AND RELATED APPARATUS