公开(公告)号：US4900874A

公开(公告)日：1990-02-13

申请号：US308926

申请日：1989-02-13

申请人： Kiyohiko Ihara ,  Fumihiko Yamaguchi ,  Shinichi Yamane

发明人： Kiyohiko Ihara ,  Fumihiko Yamaguchi ,  Shinichi Yamane

IPC分类号： C07B61/00 ,  B01J21/18 ,  C07C17/00 ,  C07C17/35 ,  C07C21/18 ,  C07C67/00

CPC分类号： C07C17/00

摘要： A method for producing a fluorine-containing olefin represented by formula (I):Ch.sub.2 .dbd.CFR.sub.f (I)wherein R.sub.f represents a perfluoroalkyl group or a fluoroalkyl group comprising the step of contacting, at a high temperature, hydrogen gas with a 1,1-dihydro-2,2-difluoro alcohol represented by formula (II):HOCH.sub.2 CF.sub.2 R.sub.f (II)wherein R.sub.f represents a perfluoroalkyl group or a fluoroalkyl group.

公开(公告)号：US4585306A

公开(公告)日：1986-04-29

申请号：US667056

申请日：1984-10-31

申请人： Akira Ohmori ,  Nobuyuki Tomihashi ,  Kiyohiko Ihara

发明人： Akira Ohmori ,  Nobuyuki Tomihashi ,  Kiyohiko Ihara

IPC分类号： B29C47/00 ,  C03C17/32 ,  C03C25/10 ,  C08F10/00 ,  C08F14/00 ,  C08F210/00 ,  C08F210/02 ,  C08F214/26 ,  C08L23/08 ,  C08L23/28 ,  G02B1/04 ,  G02B6/00 ,  G02C7/04

CPC分类号： G02B6/02033 ,  C03C17/32 ,  C03C25/105 ,  C08L23/08 ,  G02B1/043 ,  G02B1/048 ,  B29C47/00 ,  B29C47/0014 ,  C08L23/28

摘要： An optical material comprising a copolymer of:(1) ethylene,(2) at least one of tetrafluoroethylene and chlorotrifluoroethylene and(3) olefin having at least one fluoroalkyl group,and a cladding material as used in assembling an optical fiber which comprises the copolymer as defined in above.

摘要翻译： 一种光学材料，其包含以下共聚物：（1）乙烯，（2）四氟乙烯和氯三氟乙烯中的至少一种和（3）具有至少一个氟代烷基的烯烃和用于组装光纤的包层材料， 如上所述。

公开(公告)号：US5115038A

公开(公告)日：1992-05-19

申请号：US698863

申请日：1991-05-13

申请人： Kiyohiko Ihara ,  Katsuhide Ontani ,  Yutaka Nakata ,  Toshio Miyatani

发明人： Kiyohiko Ihara ,  Katsuhide Ontani ,  Yutaka Nakata ,  Toshio Miyatani

IPC分类号： C08F8/20 ,  C08F8/22 ,  C08F8/30 ,  C08F214/26

CPC分类号： C08F214/262 ,  C08F8/44 ,  C08F2800/20

摘要： A copolymer of tetrafluoroethylene and a perfluoro(alkyl vinyl ether) having the formula (I):CF.sub.2 .dbd.CF--O--Rf (I)wherein Rf is a perfluoroalkyl group having 3 or 4 carbon atoms; and said copolymer having 1 to 10% by weight of the perfluoro(alkyl vinyl ether) units, having 7 to 20, per 10.sup.6 carbon atoms, of terminal groups --CONH.sub.2, having substantially no --CH.sub.2 OH and no --COF, and having a melt viscosity at 380.degree. C. of 0.1.times.10.sup.4 to 100.times.10.sup.4 poise and a preparation process thereof. The tetrafluoroethylene copolymer is thermally stable and has excellent powder properties. Molded articles thereform have a few bubbles and excellent dimensional stability on heating.

公开(公告)号：US4521575A

公开(公告)日：1985-06-04

申请号：US576426

申请日：1984-02-02

申请人： Shinichi Nakagawa ,  Kiyohiko Ihara

发明人： Shinichi Nakagawa ,  Kiyohiko Ihara

IPC分类号： C08F210/02 ,  C08F214/26 ,  C08F214/18

CPC分类号： C08F210/02 ,  C08F214/265

摘要： A copolymer comprising monomeric units of tetrafluoroethylene, ethylene and at least one monomeric compound selected from the group consisting of 2-trifluoromethylpropylene and 2-methyl-1,1,3,3,3-pentafluoropropylene, which has a improved crack resistance at a high temperature.

摘要翻译： 一种包含四氟乙烯，乙烯和至少一种选自2-三氟甲基丙烯和2-甲基-1,1,3,3,3-五氟丙烯的单体单元的共聚物，其在高温下具有改善的抗裂性 温度。

公开(公告)号：US4499249A

公开(公告)日：1985-02-12

申请号：US489289

申请日：1983-04-28

申请人： Shinichi Nakagawa ,  Tsuneo Nakagawa ,  Sadaatsu Yamaguchi ,  Kiyohiko Ihara ,  Toshihiko Amano ,  Mitsugu Omori ,  Kohzoh Asano

发明人： Shinichi Nakagawa ,  Tsuneo Nakagawa ,  Sadaatsu Yamaguchi ,  Kiyohiko Ihara ,  Toshihiko Amano ,  Mitsugu Omori ,  Kohzoh Asano

IPC分类号： C08F2/00 ,  C08F2/18 ,  C08F4/00 ,  C08F4/28 ,  C08F4/34 ,  C08F14/00 ,  C08F16/00 ,  C08F16/14 ,  C08F214/26 ,  C08F216/14

CPC分类号： C08F214/262

摘要： A process for preparing a tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer comprising polymerizing tetrafluoroethylene and fluoro(alkyl vinyl ether) in an aqueous suspension system which comprises a mixed medium of water and a fluorohydrocarbon or a chlorofluorohydrocarbon in a volume ratio of from 1:1 to 10:1 at a temperature of from 0.degree. to 25.degree. C. in the presence of a polymerization initiator of the formula:[Cl(CF.sub.2).sub.n --COO].sub.2 (I)wherein n is an integer of 1 to 10, the copolymer obtained by the process having a small number of unstable terminal groups and excellent flex life.

摘要翻译： 一种制备四氟乙烯/氟（烷基乙烯基醚）共聚物的方法，包括在水性悬浮体系中聚合四氟乙烯和氟（烷基乙烯基醚），其包含水和氟代烃或氯氟烃的混合介质，其体积比为1： 在下式的聚合引发剂存在下，在0℃至25℃的温度下为1至10：1：[Cl（CF 2）n -CO 2] 2（I）其中n为1至10的整数 通过该方法获得的共聚物具有少量不稳定的端基并且具有优异的弯曲寿命。

公开(公告)号：US5324785A

公开(公告)日：1994-06-28

申请号：US133787

申请日：1993-10-08

申请人： Yoshihisa Noda ,  Kazutaka Hosokawa ,  Toshio Mizuno ,  Kiyohiko Ihara ,  Tetsuo Shimizu

发明人： Yoshihisa Noda ,  Kazutaka Hosokawa ,  Toshio Mizuno ,  Kiyohiko Ihara ,  Tetsuo Shimizu

IPC分类号： C08J3/02 ,  C08F2/22 ,  C08F14/26 ,  C08F259/08 ,  C08J3/16 ,  C08L27/06 ,  C08L27/18

CPC分类号： C08F259/08 ,  Y10S525/902

摘要： Colloidal polytetrafluoroethylene fine particles having an average particle size of 0.05 to 1.0 .mu.m and each comprising a core made of polytetrafluoroethylene which has a high molecular weight and can be fibrilled and a shell surrounding the core and made of a low molecular weight polytetrafluoroethylene which is not fibrilled, which has good dispersibility in water or an organic solvent and easily provides an organosol by a phase transfer method.

摘要翻译： 平均粒径为0.05〜1.0μm的胶体型聚四氟乙烯微粒，各自包含由聚四氟乙烯制成的芯，该聚四氟乙烯具有高分子量并且可以被纤维化，壳体围绕芯并且由低分子量聚四氟乙烯制成，不是 纤维状，其在水或有机溶剂中具有良好的分散性，并且通过相转移法容易地提供有机溶胶。

公开(公告)号：US4677175A

公开(公告)日：1987-06-30

申请号：US736314

申请日：1985-05-21

申请人： Kiyohiko Ihara ,  Tsuneo Nakagawa

发明人： Kiyohiko Ihara ,  Tsuneo Nakagawa

IPC分类号： B65D39/00 ,  C08F214/26 ,  C08F14/26

CPC分类号： B65D39/0029 ,  C08F214/265 ,  B65D2539/008

摘要： A copolymer comprising monomeric units derived from ethylene, tetrafluoroethylene and a fluorine-containing vinyl monomer which provides the copolymer with side chains having at least one carbon atom, wherein the molar ratio of tetrafluoroethylene and ethylene is from 62:38 to 90:10 and the content of the fluorine-containing vinyl monomer is from 0.1 to 10% by mole based on the total number of mole of ethylene and tetrafluoroethylene, which has improved flexibility and better flame retardance.

摘要翻译： 一种包含衍生自乙烯，四氟乙烯和含氟乙烯基单体的单体单元的共聚物，该共聚物具有至少一个碳原子的侧链，其中四氟乙烯和乙烯的摩尔比为62:38至90:10， 含氟乙烯基单体的含量相对于乙烯和四氟乙烯的总摩尔数为0.1〜10摩尔％，其具有改善的柔性和更好的阻燃性。

公开(公告)号：US4614276A

公开(公告)日：1986-09-30

申请号：US736312

申请日：1985-05-21

申请人： Kiyohiko Ihara ,  Tsuneo Nakagawa

发明人： Kiyohiko Ihara ,  Tsuneo Nakagawa

IPC分类号： B65D39/00 ,  B65D39/18 ,  B65D51/00 ,  C08F214/26

CPC分类号： B65D51/002 ,  B65D39/0029 ,  C08F214/265 ,  B65D2539/008

摘要： A laminated rubber stopper comprising a head portion and a leg portion which is to be inserted in an opening of a vessel, wherein at least a leg portion is laminated with a film of a copolymer of tetrafluoroethylene, ethylene and at least one fluorine-containing vinyl monomer copolymerizable with tetrafluoroethylene and ethylene, a molar ratio of tetrafluoroethylene and ethylene being from 62:38 to 90:10 and the amount of the fluorine-containing vinyl monomer being from 0.1 to 10% by mole based on the total number of mole of tetrafluoroethylene and ethylene, which has improved fitting with an opening of a vessel and sealing properties and can be produced with low failure rate.

摘要翻译： 一种层压橡胶塞，其包括头部和待插入容器开口中的腿部，其中至少一个腿部与四氟乙烯，乙烯和至少一种含氟乙烯基共聚物的膜层压 可与四氟乙烯和乙烯共聚的单体，四氟乙烯和乙烯的摩尔比为62:38至90:10，相对于四氟乙烯的总摩尔数，含氟乙烯基单体的量为0.1-10摩尔％ 和乙烯，其改进了与容器开口的配合和密封性能，并且可以以低的故障率制造。

公开(公告)号：US4513129A

公开(公告)日：1985-04-23

申请号：US601432

申请日：1984-04-18

申请人： Shinichi Nakagawa ,  Kiyohiko Ihara ,  Toshio Sogabe

发明人： Shinichi Nakagawa ,  Kiyohiko Ihara ,  Toshio Sogabe

IPC分类号： C08F210/00 ,  C08F10/00 ,  C08F14/00 ,  C08F14/24 ,  C08F210/02 ,  C08F214/00 ,  C08F214/24 ,  C08F214/26 ,  C08F12/20

CPC分类号： C08F214/265 ,  C08F210/02 ,  C08F214/24

摘要： A copolymer comprising monomeric units derived from ethylene, tetrafluoroethylene or chlorotrifluoroethylene and a fluorovinyl compound of the formula:CH.sub.2 .dbd.CFRf (I)wherein Rf is a C.sub.2 -C.sub.10 fluoroalkyl group, a molar ratio of ethylene and tetrafluoroethylene or chlorotrifluoroethylene being from 40:60 to 60:40 and the content of the fluorovinyl compound being from 0.1% to 10% by mole having improved thermal resistance and high temperature mechanical properties such as crack resistance.

摘要翻译： 一种共聚物，其包含衍生自乙烯，四氟乙烯或氯三氟乙烯的单体单元和下式的氟代乙烯基化合物：CH2 = CFRf（I）其中Rf是C2-C10氟代烷基，乙烯和四氟乙烯或氯三氟乙烯的摩尔比为40:60 至60:40，并且氟乙烯基化合物的含量为0.1％至10％摩尔，具有改进的耐热性和耐高温机械性能如抗裂性。

公开(公告)号：US06365243B1

公开(公告)日：2002-04-02

申请号：US08765454

申请日：1997-01-22

申请人： Katsuhide Otani ,  Kiyohiko Ihara

发明人： Katsuhide Otani ,  Kiyohiko Ihara

IPC分类号： C08F1418

CPC分类号： C08J3/12 ,  C08F6/00 ,  C08F214/18 ,  C08J2327/12 ,  Y10T428/1352 ,  Y10T428/139 ,  Y10T428/1397 ,  C08L27/12

摘要： The fine powder of high molecular weight fluorine containing resins having melt viscosities of 106 to 1013 poise, apparent density of 0.4 to 1.5 g/cc, and specific surface area of 2 m2/g or less, mold goods of the fine powder and these production methods. By utilizing the fine powder of high molecular weight flourine containing fused resins that have previously not been employed, the mold goods obtained from the fine powder have fewer liquated particles and have become the most suitable especially for manufacturing semiconductors. The powder's products have greater resistance to flex fatigue, abrasion, resistance, etc.

摘要翻译： 熔融粘度为106〜1013泊，表观密度为0.4〜1.5g / cc，比表面积为2m 2 / g以下的高分子含氟树脂的细粉末，细粉的成型品和这些制造 方法。 通过利用以前没有使用的含有熔融树脂的高分子量的含氟粉末，从细粉中获得的模具具有较少的液化颗粒，并且已经变得最适合于制造半导体。 粉末的产品具有较强的耐疲劳性，耐磨性，耐磨性等优点。