公开(公告)号：US06204301B1

公开(公告)日：2001-03-20

申请号：US09395213

申请日：1999-09-14

申请人： Akihiro Oshima ,  Akira Udagawa ,  Yosuke Morita ,  Tadao Seguchi ,  Yoneho Tabata

发明人： Akihiro Oshima ,  Akira Udagawa ,  Yosuke Morita ,  Tadao Seguchi ,  Yoneho Tabata

IPC分类号： C08J328

CPC分类号： C08J3/28 ,  C08J5/04 ,  C08J2327/18 ,  Y10S522/912

摘要： Fibers as a reinforcing substrate are impregnated with the particles of polytetrafluoroethylene and pressed into a shape at the melting point of polytetrafluoroethylene. Alternatively, the reinforcing substrate sandwiched between polytetrafluoroethylene sheets is pressed into a shape at the melting point of polytetrafluoroethylene. In either case, the shaped article is then exposed to an ionizing radiation in an oxygen-free atmosphere at the melting point of polytetrafluoroethylene. The inherent characteristics of the polytetrafluoroethylene, i.e., heat resistance, chemical resistance, abrasion resistance and lubricity, are retained and yet radiation resistance and resin transparency are imparted.

摘要翻译： 作为增强基材的纤维用聚四氟乙烯颗粒浸渍并压制成聚四氟乙烯熔点的形状。 或者，夹在聚四氟乙烯片之间的增强基板被压制成聚四氟乙烯熔点的形状。 在任一情况下，成型制品然后在聚四氟乙烯的熔点下在无氧气氛中暴露于电离辐射。 保留聚四氟乙烯的固有特性，即耐热性，耐化学性，耐磨性和润滑性，并赋予耐辐射性和树脂透明性。

公开(公告)号：US07220799B2

公开(公告)日：2007-05-22

申请号：US10855573

申请日：2004-05-28

申请人： Akira Udagawa ,  Akihiro Oshima

发明人： Akira Udagawa ,  Akihiro Oshima

IPC分类号： C08L27/18 ,  C08F14/18 ,  C08J3/28

CPC分类号： C08J3/28 ,  C08J2327/18 ,  C08L27/18 ,  C08L2205/02 ,  C08L2666/04

摘要： Unsintered poly(tetrafluoroethylene) resin feeds are treated with ionizing radiation in an absorbed dose of no more than 1,000 Gy at room temperature in air so that only the melting temperature of the resin feeds is shifted toward the lower end without changing the quantities of heat of fusion and crystallization.

摘要翻译： 未煅烧的聚（四氟乙烯）树脂进料在室温下在空气中以不超过1,000Gy的吸收剂量的电离辐射进行处理，使得只有树脂进料的熔融温度向下端移动而不改变热量的 融合和结晶。

公开(公告)号：US06762215B2

公开(公告)日：2004-07-13

申请号：US10081533

申请日：2002-02-25

申请人： Akira Udagawa ,  Akihiro Oshima

发明人： Akira Udagawa ,  Akihiro Oshima

IPC分类号： C08J328

CPC分类号： C08J3/28 ,  C08J2327/18 ,  C08L27/18 ,  C08L2205/02 ,  C08L2666/04

摘要： Unsintered poly(tetrafluoroethylene) resin feeds are treated with ionizing radiation in an absorbed dose of no more than 1,000 Gy at room temperature in air so that only the melting temperature of the resin feeds is shifted toward the lower end without changing the quantities of heat of fusion and crystallization.

摘要翻译： 未煅烧的聚（四氟乙烯）树脂进料在室温下在空气中以不超过1,000Gy的吸收剂量的电离辐射进行处理，使得只有树脂进料的熔融温度向下端移动而不改变热量的 融合和结晶。

公开(公告)号：US08715559B2

公开(公告)日：2014-05-06

申请号：US11988892

申请日：2006-09-08

申请人： Fumihiro Hayashi ,  Shinichi Kanazawa ,  Atsushi Uno ,  Akira Udagawa ,  Shigetoshi Ikeda ,  Toshiaki Yagi

发明人： Fumihiro Hayashi ,  Shinichi Kanazawa ,  Atsushi Uno ,  Akira Udagawa ,  Shigetoshi Ikeda ,  Toshiaki Yagi

IPC分类号： B29C39/38 ,  B29C51/00 ,  B32B3/26

CPC分类号： B29C67/20 ,  B01D39/1692 ,  B01D67/0025 ,  B01D71/36 ,  B01D2239/1216 ,  B01D2323/08 ,  B29C55/005 ,  B29C71/02 ,  B29C2071/022 ,  B29K2027/18 ,  B29K2105/04 ,  Y10T428/249978 ,  Y10T428/249979

摘要： A tetrafluoroethylene resin molded article obtained by fusing PTFE by heating a tetrafluoroethylene resin by heating, and then executing a gradual cooling or a cooling including a holding at a temperature equal to or higher than 313° C. and lower than 321° C. for 10 minutes or longer, and having, when heated to 365° C., then cooled to 245° C. with a rate of −1° C./min, and then heated to 365° C. with a rate of 10° C./min, a heat of fusion which, within a range from 296 to 343° C., is equal to or larger than 32 J/g and less than 47.8 J/g, a porous article obtained by expanding the molded article, and a composite article, a filter, an impact deformation absorber and a sealing material utilizing the molded article or the porous article.

摘要翻译： 通过加热四氟乙烯树脂通过加热四氟乙烯树脂来熔融PTFE，然后在等于或高于313℃且低于321℃的温度下进行包括保持在内的逐渐冷却或冷却而获得的四氟乙烯树脂成型体10 分钟或更长时间，并且当加热至365℃时，以-1℃/分钟的速率冷却至245℃，然后以10℃的速率加热至365℃。 /分钟，在296〜343℃的范围内，等于或大于32J / g且小于47.8J / g的熔融热，通过使成形品膨胀而得到的多孔体，以及 复合制品，过滤器，冲击变形吸收器和利用模制品或多孔制品的密封材料。

公开(公告)号：US20090029136A1

公开(公告)日：2009-01-29

申请号：US11988892

申请日：2006-09-08

申请人： Fumihiro Hayashi ,  Shinichi Kanazawa ,  Atsushi Uno ,  Akira Udagawa ,  Shigetoshi Ikeda ,  Toshiaki Yagi

发明人： Fumihiro Hayashi ,  Shinichi Kanazawa ,  Atsushi Uno ,  Akira Udagawa ,  Shigetoshi Ikeda ,  Toshiaki Yagi

IPC分类号： B32B3/26 ,  B29C51/00

CPC分类号： B29C67/20 ,  B01D39/1692 ,  B01D67/0025 ,  B01D71/36 ,  B01D2239/1216 ,  B01D2323/08 ,  B29C55/005 ,  B29C71/02 ,  B29C2071/022 ,  B29K2027/18 ,  B29K2105/04 ,  Y10T428/249978 ,  Y10T428/249979

摘要： A tetrafluoroethylene resin molded article obtained by fusing PTFE by heating a tetrafluoroethylene resin by heating, and then executing a gradual cooling or a cooling including a holding at a temperature equal to or higher than 313° C. and lower than 321° C. for 10 minutes or longer, and having, when heated to 365° C., then cooled to 245° C. with a rate of −1° C./min, and then heated to 365° C. with a rate of 10° C./min, a heat of fusion which, within a range from 296 to 343° C., is equal to or larger than 32 J/g and less than 47.8 J/g, a porous article obtained by expanding the molded article, and a composite article, a filter, an impact deformation absorber and a sealing material utilizing the molded article or the porous article.

摘要翻译： 通过加热四氟乙烯树脂通过加热四氟乙烯树脂来熔融PTFE，然后在等于或高于313℃且低于321℃的温度下进行包括保持在内的逐渐冷却或冷却而获得的四氟乙烯树脂成型体10 分钟或更长时间，并且当加热至365℃时，以-1℃/分钟的速率冷却至245℃，然后以10℃的速率加热至365℃。 /分钟，在296〜343℃的范围内，等于或大于32J / g且小于47.8J / g的熔融热，通过使成形品膨胀而得到的多孔体，以及 复合制品，过滤器，冲击变形吸收器和利用模制品或多孔制品的密封材料。