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公开(公告)号:US5324785A
公开(公告)日:1994-06-28
申请号:US133787
申请日:1993-10-08
CPC分类号: C08F259/08 , Y10S525/902
摘要: Colloidal polytetrafluoroethylene fine particles having an average particle size of 0.05 to 1.0 .mu.m and each comprising a core made of polytetrafluoroethylene which has a high molecular weight and can be fibrilled and a shell surrounding the core and made of a low molecular weight polytetrafluoroethylene which is not fibrilled, which has good dispersibility in water or an organic solvent and easily provides an organosol by a phase transfer method.
摘要翻译: 平均粒径为0.05〜1.0μm的胶体型聚四氟乙烯微粒,各自包含由聚四氟乙烯制成的芯,该聚四氟乙烯具有高分子量并且可以被纤维化,壳体围绕芯并且由低分子量聚四氟乙烯制成,不是 纤维状,其在水或有机溶剂中具有良好的分散性,并且通过相转移法容易地提供有机溶胶。
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12.
公开(公告)号:US4513129A
公开(公告)日:1985-04-23
申请号:US601432
申请日:1984-04-18
申请人: Shinichi Nakagawa , Kiyohiko Ihara , Toshio Sogabe
发明人: Shinichi Nakagawa , Kiyohiko Ihara , Toshio Sogabe
IPC分类号: C08F210/00 , C08F10/00 , C08F14/00 , C08F14/24 , C08F210/02 , C08F214/00 , C08F214/24 , C08F214/26 , C08F12/20
CPC分类号: C08F214/265 , C08F210/02 , C08F214/24
摘要: A copolymer comprising monomeric units derived from ethylene, tetrafluoroethylene or chlorotrifluoroethylene and a fluorovinyl compound of the formula:CH.sub.2 .dbd.CFRf (I)wherein Rf is a C.sub.2 -C.sub.10 fluoroalkyl group, a molar ratio of ethylene and tetrafluoroethylene or chlorotrifluoroethylene being from 40:60 to 60:40 and the content of the fluorovinyl compound being from 0.1% to 10% by mole having improved thermal resistance and high temperature mechanical properties such as crack resistance.
摘要翻译: 一种共聚物,其包含衍生自乙烯,四氟乙烯或氯三氟乙烯的单体单元和下式的氟代乙烯基化合物:CH2 = CFRf(I)其中Rf是C2-C10氟代烷基,乙烯和四氟乙烯或氯三氟乙烯的摩尔比为40:60 至60:40,并且氟乙烯基化合物的含量为0.1%至10%摩尔,具有改进的耐热性和耐高温机械性能如抗裂性。
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