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POLYPROPYLENE MATERIAL WITH HIGH MELT STRENGTH AND PREPARATION PROCESS AND USE THEREOF 发明申请

2023-03-21 1490 783K 0

专利信息

申请日期 2025-07-10 申请号 WOCN11084549
公开(公告)号 WO2013086757A1 公开(公告)日 2013-06-20
公开国别 WO 申请人省市代码 全国
申请人 KINGFA SCI TECH CO LTD; SHANGHAI KINGFA SCI TECH CO LTD; MIANYANG DONGFANG SPECIAL ENGINEERING PLASTIC CO LTD; YU Haiou; YANG Xiaoyun; WANG Aidong; TAO Siping; XIAO Peng; XIA Jianmeng; NING Kaijun
简介 Disclosed are a polypropylene material with a high melt strength, and a preparation process and the use thereof. The polypropylene material is prepared from 65-99.79 parts of polypropylene, 0.01-10 parts of an initiator, 0.1-10 parts of a multi-functional monomer, 0.1-5 parts of a free radical stabilizer and 0-10 parts of an inert processing aid. The free radical stabilizer is a lanthanide rare earth oxide, a carboxylate of a lanthanide rare earth element, a naphthenic acid complex of a lanthanide rare earth element or a dithiocarbamic acid rare earth compound. The lanthanide rare earth element does not include promethium. In the present invention, by controlling the proportion of polypropylene, initiator and multi-functional monomer, increasing the time for the grafting reaction, inhibiting the degradation of polypropylene using rare earth materials and prolonging the lifetime of the free radicals, polypropylene having a high melt strength, a long branched chain and stable performance is obtained and the usage of common polypropylene is improved. The process in the present invention is easy to operate, convenient to control and facilitates industrialized production.


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