公开(公告)号：US06204301B1

公开(公告)日：2001-03-20

申请号：US09395213

申请日：1999-09-14

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

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

IPC: C08J328

CPC classification number: C08J3/28 ,  C08J5/04 ,  C08J2327/18 ,  Y10S522/912

Abstract: 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.

Abstract translation: 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：US20110171403A1

公开(公告)日：2011-07-14

申请号：US13120121

申请日：2009-09-30

Applicant: Yoneho Tabata ,  Hideto Suzuki ,  Shigetoshi Ikeda ,  Minoru Iida ,  Minoru Kawai ,  Gen Kojima ,  Yasuhiko Sawada

Inventor： Yoneho Tabata ,  Hideto Suzuki ,  Shigetoshi Ikeda ,  Minoru Iida ,  Minoru Kawai ,  Gen Kojima ,  Yasuhiko Sawada

IPC: B32B1/08 ,  B29C47/00 ,  B29C43/00 ,  B29C47/06 ,  C08F14/26 ,  C08J3/28

CPC classification number: C08F114/26 ,  C08J3/28 ,  C08J2327/18 ,  Y10T428/1345

Abstract: A polytetrafluoroethylene resin comprising polytetrafluoroethylene having a two-dimensional branched structure in the molecule is produced by exposing polytetrafluoroethylene to an ionizing radiation at a dose of no more than 10 kGy.

Abstract translation: 通过将聚四氟乙烯以不大于10kGy的剂量暴露于电离辐射来制备包含分子中具有二维支化结构的聚四氟乙烯的聚四氟乙烯树脂。

公开(公告)号：US4322511A

公开(公告)日：1982-03-30

申请号：US158824

申请日：1980-06-12

Applicant: Osamu Matsuda ,  Terutaka Watanabe ,  Yoneho Tabata ,  Sueo Machi

Inventor： Osamu Matsuda ,  Terutaka Watanabe ,  Yoneho Tabata ,  Sueo Machi

IPC: C08F8/12 ,  C08F8/44 ,  C08F210/00 ,  C08F214/26 ,  C08F220/24 ,  C08J3/28 ,  C08F214/18 ,  C08F8/00

CPC classification number: C08F220/24 ,  C08F210/00 ,  C08F214/265 ,  C08F8/44 ,  C08J3/28 ,  C08J5/18 ,  C08F2800/10 ,  C08F2810/50

Abstract: A novel process for the production of fluorine-containing multi-component copolymers having functional groups is disclosed, which process is characterized in that tetrafluoroethylene having the formula: CF.sub.2 .dbd.CF.sub.2 ; one or two or more .alpha.,.beta.,.beta.-trifluoroacrylate having the generic formula: CF.sub.2 .dbd.CFCOOC.sub.n H.sub.2n+1 wherein n represents an integer of 1 or greater; and one or two or more .alpha.-olefin having the generic formula: ##STR1## wherein j and m each independently represents an integer of 0 to 11 inclusive; are copolymerized with one another in the presence of a radical initiator. The resultant interpolymer is hydrolyzed and cross-linked using ionizing radiation.

Abstract translation: 公开了一种制备具有官能团的含氟多组分共聚物的新方法，该方法的特征在于具有下式的CF 3 = CF 2; 一种或两种以上具有以下通式的α，β，β-三氟丙烯酸酯：CF2 = CFCOOCnH2n + 1，其中n表示1或更大的整数; 和一种或两种以上具有以下通式的α-烯烃：其中j和m各自独立地表示0至11的整数; 在自由基引发剂的存在下彼此共聚。 所得互聚物用电离辐射水解和交联。

公开(公告)号：US09266984B2

公开(公告)日：2016-02-23

申请号：US13120121

申请日：2009-09-30

Applicant: Yoneho Tabata ,  Hideto Suzuki ,  Shigetoshi Ikeda ,  Minoru Iida ,  Minoru Kawai ,  Gen Kojima ,  Yasuhiko Sawada

Inventor： Yoneho Tabata ,  Hideto Suzuki ,  Shigetoshi Ikeda ,  Minoru Iida ,  Minoru Kawai ,  Gen Kojima ,  Yasuhiko Sawada

IPC: C08J3/28 ,  C08F114/26

CPC classification number: C08F114/26 ,  C08J3/28 ,  C08J2327/18 ,  Y10T428/1345

Abstract: A polytetrafluoroethylene resin comprising polytetrafluoroethylene having a two-dimensional branched structure in the molecule is produced by exposing polytetrafluoroethylene to an ionizing radiation at a dose of no more than 10 kGy.

Abstract translation: 通过将聚四氟乙烯以不大于10kGy的剂量暴露于电离辐射来制备包含分子中具有二维支化结构的聚四氟乙烯的聚四氟乙烯树脂。

公开(公告)号：US5985949A

公开(公告)日：1999-11-16

申请号：US838812

申请日：1997-04-10

Applicant: Tadao Seguchi ,  Noboru Kasai ,  Akinari Nakayama ,  Hideki Yagyu ,  Yoneho Tabata ,  Kazushige Otsuhata ,  Shigetoshi Ikeda ,  Akihiro Ohshima ,  Mitsuharu Morozumi ,  Masumi Nomura

Inventor： Tadao Seguchi ,  Noboru Kasai ,  Akinari Nakayama ,  Hideki Yagyu ,  Yoneho Tabata ,  Kazushige Otsuhata ,  Shigetoshi Ikeda ,  Akihiro Ohshima ,  Mitsuharu Morozumi ,  Masumi Nomura

IPC: B29C71/04 ,  C08J3/28 ,  C08J5/16 ,  C08J7/00 ,  C08F2/46 ,  C08F2/48 ,  C08F2/54

CPC classification number: C08J3/28 ,  B29C71/04 ,  C08J2327/12

Abstract: A product having reduced friction and improved abrasion resistance comprises a formed resin containing at least one fluorine-containing polymer which is exposed to an ionizing radiation. The formed resin may include from 1 to 100 weight percent of the fluorine-containing polymer in the form of powder, and from 99 to 0 percent of a high molecule polymer which is not exposed to the ionizing radiation. The fluorine-containing polymer is preferably exposed to the ionizing radiation for a total dose of from 1 KGy to 10 MGy in the absence of oxygen at a temperature not lower than the melting point of a starting fluorine-containing polymer.

Abstract translation: 具有减少的摩擦和改善的耐磨性的产品包括含有至少一种暴露于电离辐射的含氟聚合物的成形树脂。 所形成的树脂可以包括1至100重量％的粉末形式的含氟聚合物和99至0％的不暴露于电离辐射的高分子聚合物。 在不存在氧的情况下，优选在不低于起始含氟聚合物的熔点的温度下将含氟聚合物暴露于电离辐射总剂量为1KGy至10MGy。

公开(公告)号：US5444103A

公开(公告)日：1995-08-22

申请号：US130847

申请日：1993-10-04

Applicant: Yoneho Tabata ,  Kazushige Otsuhata ,  Tetsuya Ikeda ,  Kohji Ueno ,  Yuichi Yoshida ,  Akihiro Oshima ,  Tadao Suguchi ,  Hisaaki Kudoh

Inventor： Yoneho Tabata ,  Kazushige Otsuhata ,  Tetsuya Ikeda ,  Kohji Ueno ,  Yuichi Yoshida ,  Akihiro Oshima ,  Tadao Suguchi ,  Hisaaki Kudoh

IPC: C08F214/26 ,  C08F2/46 ,  C08F14/26 ,  C08F114/26 ,  C08J3/24 ,  C08J3/28 ,  C08J7/00 ,  C08F2/48 ,  C08F2/54

CPC classification number: C08J3/28 ,  C08J2327/18

Abstract: Modified PTFE is produced by exposing a starting PTFE to an ionizing radiation for a total dose of at least 100 kGy in the absence of oxygen at a temperature not lower than the crystal melting point of the starting PTFE. The thus modified PTFE is improved in radiation resistance and has rubber characteristics.

Abstract translation: 通过在不低于起始PTFE的结晶熔点的温度下，在不存在氧气的情况下将起始PTFE暴露于电离辐射至少100kGy的总剂量来制备改性PTFE。 这样改性的PTFE耐辐射性提高，具有橡胶特性。

公开(公告)号：US4294675A

公开(公告)日：1981-10-13

申请号：US85328

申请日：1979-10-16

Applicant: Osamu Matsuda ,  Terutaka Watanabe ,  Yoneho Tabata ,  Sueo Machi

Inventor： Osamu Matsuda ,  Terutaka Watanabe ,  Yoneho Tabata ,  Sueo Machi

IPC: C08F8/12 ,  C08F8/44 ,  C08F210/00 ,  C08F214/26 ,  C08F220/24 ,  C08J3/28 ,  C08F8/00 ,  C08F214/18

CPC classification number: C08F220/24 ,  C08F210/00 ,  C08F214/265 ,  C08F8/44 ,  C08J3/28 ,  C08J5/18 ,  C08F2800/10 ,  C08F2810/50

Abstract: A novel process for the production of fluorine-containing multi-component copolymers having functional groups is disclosed, which process is characterized in that tetrafluoroethylene having the formula: CF.sub.2 .dbd.CF.sub.2 ; one or two or more .alpha.,.beta.,.beta.-trifluoroacrylate having the generic formula: CF.sub.2 .dbd.CFCOOC.sub.n H.sub.2n+1 wherein n represents an integer of 1 or greater; and one or two or more .alpha.-olefin having the generic formula: ##STR1## wherein j and m each independently represents an integer of 0 to 11 inclusive; are copolymerized with one another in the presence of a radical initiator.

Abstract translation: 公开了一种制备具有官能团的含氟多组分共聚物的新方法，该方法的特征在于具有下式的CF 3 = CF 2; 一种或两种以上具有以下通式的α，β，β-三氟丙烯酸酯：CF2 = CFCOOCnH2n + 1，其中n表示1或更大的整数; 和一种或两种以上具有以下通式的α-烯烃：其中j和m各自独立地表示0至11的整数; 在自由基引发剂的存在下彼此共聚。