Title:
HALOGENATED GRAFTING AGENT AND HALOGENATED BRANCHED BUTYL RUBBER, PREPARATION METHOD THEREFOR, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/066787
Kind Code:
A1
Abstract:
The present invention relates to the field of rubber damping materials, and disclosed are a halogenated grafting agent and a halogenated branched butyl rubber, a preparation method therefor, and use thereof. The halogenated grafting agent comprises a structural unit A, an optional structural unit B, a structural unit C, and a structural unit D, wherein the structural unit A has a structure represented by formula (1); the structural unit C has a structure represented by formula (2); the structural unit B is connected to the structural unit A and the structural unit C, respectively; the structural unit D is a terminal end-capped structural unit; the structural unit B and the structural unit D are each independently from a conjugated diene. The method of the present invention solves the problems of low damping performance and heterogeneous rearrangement of a halogenated structure in the butyl rubber, the mechanical property and the air permeability of the butyl rubber are prevented from being damaged by the damping brominated grafting agent, and the damping performance and the tensile strength of the butyl rubber are also improved.
Inventors:
XU DIANHONG (CN)
YAN PENGHUA (CN)
ZHAO ZHICHAO (CN)
LIANG TAO (CN)
WEI XULING (CN)
NIU CHENGXIANG (CN)
YANG SHANSHAN (CN)
MENG LINGKUN (CN)
ZHU JING (CN)
YAN PENGHUA (CN)
ZHAO ZHICHAO (CN)
LIANG TAO (CN)
WEI XULING (CN)
NIU CHENGXIANG (CN)
YANG SHANSHAN (CN)
MENG LINGKUN (CN)
ZHU JING (CN)
Application Number:
PCT/CN2023/113586
Publication Date:
April 04, 2024
Filing Date:
August 17, 2023
Export Citation:
Assignee:
PETROCHINA CO LTD (CN)
International Classes:
C08F293/00; C08F210/12; C08F212/12; C08F287/00
Foreign References:
| CN116410413A | 2023-07-11 | |||
| CN116410419A | 2023-07-11 | |||
| CN113493548A | 2021-10-12 | |||
| CN104892813A | 2015-09-09 | |||
| EP0344021A2 | 1989-11-29 | |||
| IN174816B | 1995-03-18 | |||
| US5162445A | 1992-11-10 | |||
| US5548023A | 1996-08-20 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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