| 专利名称 | Process for preparing a terpolymer of tetrafluoroethylene, ethylene and a third monomer | 申请号 | US84679586A | 专利类型 | US | 公开（公告）号 | US4678847A | 公开（授权）日 | 1987.07.07 | 申请（专利权）人 | 中国科学院上海有机化学研究所 | 发明（设计）人 | ZHANG YUN-XIANG ; DAI XING-YI ; LU ZHI-KANG ; ZENG SEN | 主分类号 | C08F210/02 | IPC主分类号 | C08F210/02 | 专利有效期 | Process for preparing a terpolymer of tetrafluoroethylene, ethylene and a third monomer 至Process for preparing a terpolymer of tetrafluoroethylene, ethylene and a third monomer | 法律状态 | 说明书摘要 | The present invention relates to the process for preparing terpolymer of tetrafluoroethylene (TFE), ethylene (E), and a third monomer. According to the present invention, dicarbonate peroxide is used as initiator, 1,1,2-trichloro-1,2,2-trifluoro-ethane as the reaction medium and compounds of molecular formula CnR2n+2, wherein, n=0,1, or 2;R=H, Cl or F, are gaseous chain telomeric agents to control the average molecular weight of copolymers, the formula of third monomer is CF2XCOCF2 X' or wherein X=X'=Cl or F, R1=CF3 or CH3,R2=CF3, CH3 or H, and R3=H or F, usually the molar ratio of TFE to E is from 60:40 to 40:60 with the content of the third monomer being from 0.1% to 10%, based on the total molar amount of TFE and E. |
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2、平台验证，实名审核
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