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    Tetrafluoroethylene copolymer
    3.
    发明授权
    Tetrafluoroethylene copolymer 失效
    四氟乙烯共聚物

    公开(公告)号：US07009018B2

    公开(公告)日：2006-03-07

    申请号：US11080636

    申请日：2005-03-16

    申请人： Kazuya Oharu ,  Hidekazu Okamoto ,  Shin Tatematsu ,  Shigeki Kobayashi ,  Shinya Higuchi ,  Masataka Arai ,  Hiroki Nagai

    发明人： Kazuya Oharu ,  Hidekazu Okamoto ,  Shin Tatematsu ,  Shigeki Kobayashi ,  Shinya Higuchi ,  Masataka Arai ,  Hiroki Nagai

    IPC分类号： C08F116/12 ,  C08F16/24 ,  C08F216/12 ,  C08F114/18 ,  C08F14/18

    CPC分类号： C08F214/26

    摘要： Provided is a tetrafluoroethylene copolymer consisting of a unit based on tetrafluoroethylene and a unit based on a monomer represented by CF2═CFORf1Rf2 (where Rf1 is a polyfluoroalkylene group which may contain an etheric oxygen atom and Rf2 is a polyfluorocycloalkyl group which may contain an etheric oxygen atom), wherein a content of the latter is from 0.005 to 0.5% by mass. The tetrafluoroethylene copolymer is excellent both in paste extrudability and in heat resistance, has characteristics such as excellent transparency of a molded product, and is suitably applicable to paste extrusion and compression molding.

    摘要翻译： 提供一种四氟乙烯共聚物，其由基于四氟乙烯的单元和基于由CF 2 - （CH 2）2表示的单体组成的单元组成 其中R f1是可以含有醚性氧原子的多氟亚烷基，R f2是可以含有醚性氧原子的多氟环烷基），其中后者的含量 为0.005〜0.5质量％。 四氟乙烯共聚物在糊状挤出性和耐热性方面优异，具有成型品的透明性优异的特性，适用于糊料挤出和压塑。

    Tetrafluoroethylene copolymer
    4.
    发明申请
    Tetrafluoroethylene copolymer 失效
    四氟乙烯共聚物

    公开(公告)号：US20050187363A1

    公开(公告)日：2005-08-25

    申请号：US11080636

    申请日：2005-03-16

    申请人： Kazuya Oharu ,  Hidekazu Okamoto ,  Shin Tatematsu ,  Shigeki Kobayashi ,  Shinya Higuchi ,  Masataka Arai ,  Hiroki Nagai

    发明人： Kazuya Oharu ,  Hidekazu Okamoto ,  Shin Tatematsu ,  Shigeki Kobayashi ,  Shinya Higuchi ,  Masataka Arai ,  Hiroki Nagai

    IPC分类号： C08F16/24 ,  C08F214/26

    CPC分类号： C08F214/26

    摘要： Provided is a tetrafluoroethylene copolymer consisting of a unit based on tetrafluoroethylene and a unit based on a monomer represented by CF2═CFORf1Rf2 (where Rf1 is a polyfluoroalkylene group which may contain an etheric oxygen atom and Rf2 is a polyfluorocycloalkyl group which may contain an etheric oxygen atom), wherein a content of the latter is from 0.005 to 0.5% by mass. The tetrafluoroethylene copolymer is excellent both in paste extrudability and in heat resistance, has characteristics such as excellent transparency of a molded product, and is suitably applicable to paste extrusion and compression molding.

    摘要翻译： 提供一种四氟乙烯共聚物，其由基于四氟乙烯的单元和基于由CF 2 - （CH 2）2表示的单体组成的单元组成 其中R f1是可以含有醚性氧原子的多氟亚烷基，R f2是可以含有醚性氧原子的多氟环烷基），其中后者的含量 为0.005〜0.5质量％。 四氟乙烯共聚物在糊状挤出性和耐热性方面优异，具有成型品的透明性优异的特性，适用于糊料挤出和压塑。

    Method for producing polytetrafluoroethylene fine powder
    5.
    发明授权
    Method for producing polytetrafluoroethylene fine powder 有权
    生产聚四氟乙烯细粉的方法

    公开(公告)号：US08575287B2

    公开(公告)日：2013-11-05

    申请号：US12910904

    申请日：2010-10-25

    申请人： Shinya Higuchi ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    发明人： Shinya Higuchi ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    IPC分类号： C08F14/18

    CPC分类号： C08F214/26 ,  C08F2/24 ,  C08F6/18 ,  C08F6/22 ,  C08F14/26 ,  C08F114/26 ,  C08J3/16 ,  C08J2327/18 ,  C08L27/18

    摘要： To provide a method for producing a PTFE fine powder having a low paste extrusion pressure property by a simple method. The method for producing a PTFE fine power comprises emulsion polymerizing tetrafluoroethylene in the presence of an aqueous medium, a fluorinated surfactant and a radical polymerization initiator, to produce an aqueous PTFE emulsion, and coagulating it in the presence of at least one bulk density-reducing compound selected from the group consisting of ammonia, an ammonium salt and urea in an amount of from 0.4 to 10 parts by mass per 100 parts by mass of PTFE.

    摘要翻译： 提供一种通过简单的方法生产具有低糊料挤出压力特性的PTFE细粉的方法。 PTFE精细粉末的制造方法包括在水性介质，氟化表面活性剂和自由基聚合引发剂的存在下将四氟乙烯乳液聚合，生成PTFE水性乳液，并在至少一个体积密度降低 选自氨，铵盐和尿素的化合物的量相对于100质量份的PTFE为0.4〜10质量份。

    METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER
    6.
    发明申请
    METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER 有权
    生产聚四氟乙烯微粉的方法

    公开(公告)号：US20110040054A1

    公开(公告)日：2011-02-17

    申请号：US12910904

    申请日：2010-10-25

    申请人： Shinya HIGUCHI ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    发明人： Shinya HIGUCHI ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    IPC分类号： C08F14/26

    CPC分类号： C08F214/26 ,  C08F2/24 ,  C08F6/18 ,  C08F6/22 ,  C08F14/26 ,  C08F114/26 ,  C08J3/16 ,  C08J2327/18 ,  C08L27/18

    摘要： To provide a method for producing a PTFE fine powder having a low paste extrusion pressure property by a simple method.The method for producing a PTFE fine power comprises emulsion polymerizing tetrafluoroethylene in the presence of an aqueous medium, a fluorinated surfactant and a radical polymerization initiator, to produce an aqueous PTFE emulsion, and coagulating it in the presence of at least one bulk density-reducing compound selected from the group consisting of ammonia, an ammonium salt and urea in an amount of from 0.4 to 10 parts by mass per 100 parts by mass of PTFE.

    摘要翻译： 提供一种通过简单的方法生产具有低糊料挤出压力特性的PTFE细粉的方法。 PTFE精细粉末的制造方法包括在水性介质，氟化表面活性剂和自由基聚合引发剂的存在下将四氟乙烯乳液聚合，生成PTFE水性乳液，并在至少一个体积密度降低 选自氨，铵盐和尿素的化合物的量相对于100质量份的PTFE为0.4〜10质量份。

    Polytetrafluoroethylene aqueous emulsion and process for its production, polytetrafluoroethylene aqueous dispersion obtainable by using such an aqueous emulsion, polytetrafluoroethylene fine powder, and stretched porous material
    7.
    发明授权
    Polytetrafluoroethylene aqueous emulsion and process for its production, polytetrafluoroethylene aqueous dispersion obtainable by using such an aqueous emulsion, polytetrafluoroethylene fine powder, and stretched porous material 有权
    聚四氟乙烯水乳液及其制造方法，通过使用这种水性乳液，聚四氟乙烯细粉末和拉伸多孔材料得到的聚四氟乙烯水分散体

    公开(公告)号：US09376520B2

    公开(公告)日：2016-06-28

    申请号：US13447803

    申请日：2012-04-16

    申请人： Shinya Higuchi ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    发明人： Shinya Higuchi ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    IPC分类号： C08F214/26 ,  C08F14/26 ,  C08J3/03

    CPC分类号： C08F214/26 ,  C08F14/26 ,  C08J3/03 ,  C08J2327/18 ,  C08F2/24

    摘要： To produce a PTFE aqueous emulsion, whereby the environmental load is little, the stability of the aqueous emulsion is high, and a molded product having high heat resistance can be obtained. A process for producing a PTFE aqueous emulsion, which comprises emulsion-polymerizing tetrafluoroethylene (TFE) by means of at least one fluorinated emulsifier selected from the group consisting of a C4-8 fluorinated carboxylic acid having from 1 to 4 etheric oxygen atoms in its main chain, and its salts, to obtain an aqueous emulsion containing polytetrafluoroethylene (PTFE) microparticles having an average primary particle size of from 0.1 to 0.3 μm, wherein at the beginning of the emulsion polymerization of TFE, a (polyfluoroalkyl)ethylene (a) represented by “CH2═CH—Rf1”, and/or a comonomer (b) having a monomer reactivity ratio rTFE of from 0.1 to 8 in copolymerization with tetrafluoroethylene, is incorporated to the emulsion polymerization system, so as to be from 0.001 to 0.01 mass % relative to the final amount of polytetrafluoroethylene produced.

    摘要翻译： 为了制造PTFE水性乳液，由于环境负荷少，水性乳液的稳定性高，因此可以得到耐热性高的成型体。 一种PTFE水性乳液的制造方法，其特征在于，含有至少一种氟化乳化剂使四氟乙烯（TFE）进行乳液聚合，所述氟化乳化剂选自在其主体中具有1〜4个醚性氧原子的C4-8含氟羧酸 链和其盐，得到含有平均一次粒径为0.1〜0.3μm的聚四氟乙烯（PTFE）微粒的水性乳液，其中，在TFE的乳液聚合开始时，以（多氟烷基）乙烯（a）为代表的 通过“CH2 = CH-Rf1”和/或与四氟乙烯共聚的单体反应性比rTFE为0.1〜8的共聚单体（b）引入到乳液聚合体系中，为0.001〜0.01质量％ 相对于所生产的聚四氟乙烯的最终量。

    Method for producing polytetrafluoroethylene fine powder
    8.
    发明授权
    Method for producing polytetrafluoroethylene fine powder 有权
    生产聚四氟乙烯细粉的方法

    公开(公告)号：US07973127B2

    公开(公告)日：2011-07-05

    申请号：US12891867

    申请日：2010-09-28

    申请人： Shinya Higuchi ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    发明人： Shinya Higuchi ,  Yasuhiko Matsuoka ,  Shigeki Kobayashi

    IPC分类号： C08G63/02 ,  C08G63/00

    CPC分类号： C08F2/22 ,  C08F14/26 ,  C08F114/26 ,  C08F2/24

    摘要： The present invention provides a method for producing a polytetrafluoroethylene fine powder, which comprises emulsion polymerizing tetrafluoroethylene in the presence of an aqueous medium, a fluorinated surfactant and a radical polymerization initiator to produce an aqueous polytetrafluoroethylene emulsion, mixing and coagulating the aqueous emulsion to separate a polytetrafluoroethylene fine powder, and then drying the polytetrafluoroethylene fine powder in a wet state in an atmosphere containing ammonia.

    摘要翻译： 本发明提供一种聚四氟乙烯细粉的制造方法，其特征在于，在含水介质，氟化表面活性剂和自由基聚合引发剂的存在下，使四氟乙烯进行乳液聚合，制造聚四氟乙烯乳液，将水乳液混合并凝固， 聚四氟乙烯细粉末，然后在含氨气氛中将湿润状态的聚四氟乙烯细粉末干燥。

    Method for producing melt-moldable tetrafluoroethylene copolymer
    9.
    发明授权
    Method for producing melt-moldable tetrafluoroethylene copolymer 失效
    熔融成型四氟乙烯共聚物的制造方法

    公开(公告)号：US08470942B2

    公开(公告)日：2013-06-25

    申请号：US12402108

    申请日：2009-03-11

    申请人： Atsushi Funaki ,  Shigeki Kobayashi ,  Hiroki Nagai

    发明人： Atsushi Funaki ,  Shigeki Kobayashi ,  Hiroki Nagai

    IPC分类号： C08F16/24

    CPC分类号： C08F214/26

    摘要： The claimed invention relates to a method for producing a melt-moldable tetrafluoroethylene copolymer containing repeating units (a) based on tetrafluoroethylene and repeating units (b) based on another fluoromonomer, wherein the amount of the repeating units (a), based on the total mass of the repeating units (a) and the repeating units (b), is from 97.3 to 99.5 mass %, and the volume flow rate of the copolymer is from 0.1 to 1000 mm3/s; the process including radical suspension-polymerization of tetrafluoroethylene and the fluoromonomer in an aqueous medium in the presence of a radical polymerization initiator and at least one chain transfer agent selected from the group consisting of methane, ethane, a hydrochlorocarbon, a hydrofluorocarbon and a hydrochlorofluorocarbon.

    摘要翻译： 本发明涉及一种含有基于四氟乙烯的重复单元（a）和基于另一种含氟单体的重复单元（b））的可熔融成型的四氟乙烯共聚物的制备方法，其中重复单元（a）的量基于总计 重复单元（a）和重复单元（b）的质量为97.3〜99.5质量％，共聚物的体积流量为0.1〜1000mm 3 / s; 该方法包括在自由基聚合引发剂存在下的水性介质中的四氟乙烯和含氟单体的自由基悬浮聚合和至少一种选自甲烷，乙烷，氢氯烃，氢氟碳烃和氢氯氟烃的链转移剂。

    METHOD FOR PRODUCING MELT-MOLDABLE TETRAFLUOROETHYLENE COPOLYMER
    10.
    发明申请
    METHOD FOR PRODUCING MELT-MOLDABLE TETRAFLUOROETHYLENE COPOLYMER 失效
    生产熔融型四氢氟乙烯共聚物的方法

    公开(公告)号：US20090176952A1

    公开(公告)日：2009-07-09

    申请号：US12402108

    申请日：2009-03-11

    申请人： Atsushi Funaki ,  Shigeki Kobayashi ,  Hiroki Nagai

    发明人： Atsushi Funaki ,  Shigeki Kobayashi ,  Hiroki Nagai

    IPC分类号： C08F2/04

    CPC分类号： C08F214/26

    摘要： To provide a method for producing a tetrafluoroethylene copolymer, wherein the polymerization rate is excellent, the copolymer to be obtained is excellent in mechanical properties such as the tensile strength, it is free from coloration and can be melt-molded.A method for producing a melt-moldable tetrafluoroethylene copolymer comprising repeating units (a) based on tetrafluoroethylene and repeating units (b) based on another fluoromonomer, wherein based on the total mass of the repeating units (a) and the repeating units (b), the amount of the repeating units (a) is from 97.3 to 99.5 mass %, and the volume flow rate is from 0.1 to 1000 mm3/s, characterized by radical suspension-polymerizing tetrafluoroethylene and the fluoromonomer in an aqueous medium in the presence of a radical polymerization initiator and at least one chain transfer agent selected from the group consisting of methane, ethane, a hydrochlorocarbon, a hydrofluorocarbon and a hydrochlorofluorocarbon.

    摘要翻译： 为了提供聚四氟乙烯共聚物的制造方法，其聚合速度优异，所得共聚物的拉伸强度等机械性能优异，无着色，可以熔融成型。 一种包含基于四氟乙烯的重复单元（a）和基于另一种含氟单体的重复单元（b））的可熔融成型的四氟乙烯共聚物的方法，其中基于重复单元（a）和重复单元（b）的总质量， ，重复单元（a）的量为97.3〜99.5质量％，体积流量为0.1〜1000mm 3 / s，其特征在于，在含水介质中，在四氟乙烯和含氟单体的存在下， 自由基聚合引发剂和至少一种选自甲烷，乙烷，氢氯烃，氢氟烃和氢氯氟烃的链转移剂。