发明名称 |
CORE-SHELL FLUOROPOLYMER DISPERSIONS |
摘要 |
<p>A dispersion of non-melt-processible fluoropolymer particles having an SSG of less than about 2.225 in aqueous medium. The fluoropolymer particles comprise a core of high molecular weight polytetrafluoroethylene having an average melt creep viscosity greater than about 1.5x10<10 >Pa.s and a shell of lower molecular weight polytetrafluoroethylene or modified polytetrafluoroethylene. The shell has an average melt creep viscosity greater than about 9x10<9 >Pa.s and comprises about 5 to about 30% by weight of the particles. The fluoropolymer in the dispersion of the invention is fibrillating.</p> |
申请公布号 |
EP1470171(B1) |
申请公布日期 |
2006.05.10 |
申请号 |
EP20020728547 |
申请日期 |
2002.03.13 |
申请人 |
E.I. DUPONT DE NEMOURS AND COMPANY |
发明人 |
JONES, CLAY, WOODWARD;KRAKOWIAK, WALTER |
分类号 |
C08F259/08;C08J3/16;C08L51/00;C09D5/02;C09D127/18;C09D127/22;C09D151/00 |
主分类号 |
C08F259/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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