- 专利标题： BRANCHED OLEFIN POLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF
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申请号： EP22794401.4申请日： 2022-03-18
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公开(公告)号： EP4332129A1公开(公告)日： 2024-03-06
- 发明人: GAO, Rong , GOU, Qingqiang , ZHANG, Xiaofan , LAI, Jingjing , ZHOU, Junling , LIN, Jie , LI, Xinyang , AN, Jingyan
- 申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
- 申请人地址： CN Chaoyang District Beijing 100728 22a Chaoyangmenbei Street,; CN Chaoyang District Beijing 100013 No.14 Beisanhuan East Road
- 代理机构： Hoffmann Eitle
- 优先权： CN202110478113 20210429
- 国际公布： WO2022227924 20221103
- 主分类号： C08F110/08
- IPC分类号： C08F110/08 ; C08F110/14
摘要：
The present invention belongs to the technical field of branched polyolefin materials, and discloses a branched olefin polymer, a preparation method therefor and the use thereof. The branched olefin polymer is obtained by polymerizing at least one C4-C20 nonterminal olefin monomer with optional ethylene, propylene, and C4-C20 terminal olefin monomers; and the branched olefin polymer has the following characteristics: (a) a molecular weight of 20000 to 500000 g/mol; (b) a molecular weight distribution of 3.5 to 6.0, and a bimodal structure characterized by GPC; (c) a melting point of 0°C to 110°C and a glass-transition temperature of -80°C to -50°C; and (d) having 20 to 200 methyl groups per 1000 methylene groups.
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