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公开(公告)号:US06870020B2
公开(公告)日:2005-03-22
申请号:US10420144
申请日:2003-04-22
申请人: Ralph M. Aten , Sharon Ann Libert
发明人: Ralph M. Aten , Sharon Ann Libert
IPC分类号: C08F214/26 , C08F116/12
CPC分类号: C08F214/262 , Y10T428/2982
摘要: Modified polytetrafluoroethylene powder of a sinterable copolymer of tetrafluoroethylene containing about 0.5 to about 10 weight % of fluorinated vinyl ether, the copolymer having a melt creep viscosity of greater than about 1×106 Pa·S. In preferred embodiments, the sinterable copolymer has a melt creep viscosity of greater than about 1×107 Pa·S and fluorinated vinyl ether content of from about 1 to about 7 weight %. The polymer has a combination of a high level of fluorinated vinyl ether and a melt creep viscosity which is high enough to enable the fabrication of articles by sintering.
摘要翻译: 包含约0.5至约10重量%氟化乙烯基醚的四氟乙烯的可烧结共聚物的改性聚四氟乙烯粉末,该共聚物的熔体蠕变粘度大于约1×10 6 Paa.S。 在优选的实施方案中,可烧结共聚物的熔体蠕变粘度大于约1×10 7 Pa,氟化乙烯基醚含量为约1至约7重量%。 该聚合物具有高水平的氟化乙烯基醚和熔体蠕变粘度的组合,其足够高以能够通过烧结制造制品。
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公开(公告)号:US5405923A
公开(公告)日:1995-04-11
申请号:US236852
申请日:1994-05-02
申请人: Ralph M. Aten
发明人: Ralph M. Aten
CPC分类号: C08F14/26
摘要: A process for suspension polymerization of tetrafluoroethylene to polytetrafluoroethylene is characterized by starting reaction at low temperature and increasing temperature to higher temperature during the reaction.
摘要翻译: 四氟乙烯悬浮聚四氟乙烯的方法的特征在于,在反应过程中,在低温开始反应,升温至更高的温度。
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