公开(公告)号：US6080472A

公开(公告)日：2000-06-27

申请号：US103722

申请日：1998-06-24

申请人： James Huang ,  William Chou ,  David Chou ,  Jenn-Yuh Kau ,  Yui-Whei Cheng-Yang ,  Woh-Jer Lee

发明人： James Huang ,  William Chou ,  David Chou ,  Jenn-Yuh Kau ,  Yui-Whei Cheng-Yang ,  Woh-Jer Lee

IPC分类号： B29C55/00 ,  C08J5/18 ,  B32B3/00

CPC分类号： C08J5/18 ,  B29C55/005 ,  B29K2027/18 ,  B29K2105/04 ,  C08J2327/00 ,  Y10S428/903 ,  Y10S428/91 ,  Y10T428/249978 ,  Y10T428/24999 ,  Y10T428/249992

摘要： To provide a porous polytetrafluoroethylene sheet which has excellent cold flow resistance and is used suitably for gaskets and a highly densified polytetrafluoroethylene sheet which has high tensile strength and flex life and is used suitably for diaphragms. The porous polytetrafluoroethylene sheet is produced from a polytetrafluoroethylene material having a microstructure of nodes interconnected by fibrils and has MTS of from 3,000 to 12,000 psi and C.I. of 0.02 to 0.20 g/cc/psi. The highly densified polytetrafluoroethylene sheet is produced by compression-molding the porous polytetrafluoroethylene sheet and then sintering completely. The porous polytetrafluoroethylene sheet is also laminated with a sheet of other material to provide a composite polytetrafluoroethylene molded article.

摘要翻译： 为了提供耐冷流动性优异的多孔聚四氟乙烯片材，适用于垫片和高度致密化的聚四氟乙烯片材，其具有高拉伸强度和挠曲寿命，并适用于隔膜。 多孔聚四氟乙烯片材由具有通过原纤维互连的节点的微结构的聚四氟乙烯材料制成，并且具有3,000至12,000psi的MTS和C.I. 为0.02〜0.20g / cc / psi。 高密度聚四氟乙烯片材是通过压缩多孔聚四氟乙烯片材然后完全烧结制成的。 多孔聚四氟乙烯片也与其他材料片层压，以提供复合聚四氟乙烯模塑制品。