专利名称 | FLUOROPOLYMER ALLOYS | 申请号 | US19890423482 | 专利类型 | US | 公开(公告)号 | US5087680 | 公开(授权)日 | 1992.02.11 | 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 | SUN JIN (CN); DUAN YOULU (CN); HUANG TINGCHUN (CN); JIN SHANRONG (CN); YU XINYING (CN) | 主分类号 | C08L214/26 | IPC主分类号 | C08L214/26;C08L214/28 | 专利有效期 | FLUOROPOLYMER ALLOYS 至FLUOROPOLYMER ALLOYS | 法律状态 | 说明书摘要 | Fluoropolymer alloys made of melt fabricatable extra-high-molecular weight fluorinated ethylene-propylene copolymer (EHMW-FEP) and one or more other polymers. In fluoropolymer alloys made of EHMW-FEP and polytetrafluoroethylene, the weight percentage of the former is 0.1-99.9% and the latter is 99.9-0.1% respectively. The processes for preparing the fluoropolymer alloys are dried powder co-mill or wetted powder co-mill. Using the fluoropolymer alloys of this invention various kinds of articles have been fabricated by melt compression or cold compaction and sintering. These articles show a great improvement in creep property and also a prolonged service life in comparison with those made from ordinary polytetrafluoroethylene. |
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