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1.发明申请公开(公告)号：US20080125548A1
公开(公告)日：2008-05-29
申请号：US11791717
申请日：2005-11-30
IPC分类号： C08F214/26 , C08J5/00 , B29C43/02 , B29C67/04
CPC分类号： B29C67/04 , B29C43/003 , B29C43/006 , B29K2027/18 , C08F214/26 , C08F214/262 , C08J3/12 , C08J5/00 , C08J2327/18 , Y10T428/1352 , Y10T428/249953 , Y10T428/3154 , Y10T428/31544
摘要： It is an object of the present invention to obtain a PTFE molding excellent in flexing resistance without decreasing the tensile strength and tensile elongation. The present invention is a modified polytetrafluoroethylene molded article obtained by molding a modified polytetrafluoroethylene molding powder, wherein the modified polytetrafluoroethylene molding powder is not melt-moldable, the modified polytetrafluoroethylene constituting the modified polytetrafluoroethylene molding powder contains 0.01 to 1% by mass of a perfluorovinyl ether unit represented by the formula (I): (wherein X is a perfluoroalkyl group containing 1 to 6 carbon atoms or a perfluoroalkoxyalkyl group containing 4 to 9 carbon atoms) and the heat of crystallization thereof is 18.0 to 25.0 J/g as measured using a differential scanning calorimeter, and the modified polytetrafluoroethylene molded article has a heat of fusion of not more than 28 J/g and a flex life of at least 200×104 cycles.
摘要翻译： 本发明的目的是在不降低拉伸强度和拉伸伸长的情况下获得耐弯曲性优异的PTFE成型品。 本发明是通过将改性聚四氟乙烯成型用粉末成型而成的改性聚四氟乙烯成型体，其中改性聚四氟乙烯成型粉末不能熔融成型，构成改性聚四氟乙烯成型用粉末的改性聚四氟乙烯含有0.01〜1质量％的全氟乙烯基醚 由式（I）表示的单元（其中X是含有1至6个碳原子的全氟烷基或含有4至9个碳原子的全氟烷氧基烷基），其结晶热为18.0至25.0J / g，使用 差示扫描量热计，改性聚四氟乙烯模制品的熔融热不超过28J / g，弯曲寿命为至少200×4×4次循环。
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2.发明授权
公开(公告)号：US6037402A
公开(公告)日：2000-03-14
申请号：US51908
申请日：1998-04-24
申请人： Michio Asano , Masamichi Sukegawa , Hirokazu Yukawa , Tetsuo Shimizu , Shoji Kawachi , Shingo Tanigawa , Masayuki Tsuji
发明人： Michio Asano , Masamichi Sukegawa , Hirokazu Yukawa , Tetsuo Shimizu , Shoji Kawachi , Shingo Tanigawa , Masayuki Tsuji
CPC分类号： C08J3/21 , C08J3/205 , C08J2327/18
摘要： Filler-containing polytetrafluoroethylene granular powder, which has a large apparent density, a small average particle size and a narrow particle size distribution and a superior powder flowability, and gives a molded product having a superior tensile strength, elongation and surface roughness, and a process for preparing the same. The granular powder is granulated by mixing, in water, of a PTFE powder and a filler in the state of slurry in the presence of a surfactant and stirring in the presence of an organic liquid forming liquid-liquid interface with water.
摘要翻译： PCT No.PCT / JP96 / 03113 Sec。 371日期：1998年4月24日 102（e）1998年4月24日PCT PCT 1996年10月23日PCT公布。 公开号WO97 / 15611 PCT 日期1997年5月1日含有表面密度大，平均粒径小，粒径分布窄，粉末流动性优异的填充剂聚四氟乙烯粒状粉末，得到拉伸强度，伸长率和表面粗糙度优异的成型体 ，及其制备方法。 通过在表面活性剂存在下，在与水形成液 - 液界面的有机液体存在下搅拌，在淤浆状态下，在水中混合PTFE粉末和填料的粒状粉末进行造粒。
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3.发明授权
公开(公告)号：US5264523A
公开(公告)日：1993-11-23
申请号：US561425
申请日：1990-08-01
申请人： Norimasa Honda , Tomohiko Hirata , Hirokazu Yukawa
发明人： Norimasa Honda , Tomohiko Hirata , Hirokazu Yukawa
摘要： A uniform mixture of a polytetrafluoroethylene molding powder and an organic filler, which can provide moldings having improved properties without lowering the appearance and mechanical property, is obtained without sticking the filler to the wall of a mixer by mixing the molding powder and the filler in the presence of a silane coupling agent and a polar solvent, or by previously treating the organic filler with the silane coupling agent and mixing the treated filler with the molding powder.
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公开(公告)号：US5763082A
公开(公告)日：1998-06-09
申请号：US468651
申请日：1995-06-06
申请人： Masuo Kokumai , Yukiharu Nakamura , Mitsuru Kishine , Tetsuo Kitahaba , Hirokazu Yukawa , Kazuhide Sawada , Sang Bong Han , Tetsuo Shimizu , Takahisa Aoyama
发明人： Masuo Kokumai , Yukiharu Nakamura , Mitsuru Kishine , Tetsuo Kitahaba , Hirokazu Yukawa , Kazuhide Sawada , Sang Bong Han , Tetsuo Shimizu , Takahisa Aoyama
IPC分类号： C08F214/26 , C08J3/12 , B32B5/16
CPC分类号： C08J3/12 , C08F214/262 , C08J2327/18 , Y10T428/2982
摘要： Polytetrafluoroethylene molding powder which comprises 0.01 to 1% by weight of a perfluoro(vinyl ether) unit and which has a heat of crystallization of 18.0 to 25.0 J/g. The molding powder provides a molded article which has a flex life of not less than 7 million cycles, a creep resistance (total deformation at 200.degree. C.) of not more than 20%, and a creep resistance (total deformation at 25.degree. C.) of not more than 15%. The polytetrafluoroethylene molding powder which is excellent in both creep resistance and flex fatigue resistance is provided as a molding material for parts which are repeatedly bent such as pump.
摘要翻译： 聚四氟乙烯成型粉末，其包含0.01〜1重量％的全氟（乙烯基醚）单元，其结晶热为18.0〜25.0J / g。 成型粉末提供具有不小于700万次循环的弯曲寿命的模制品，不超过20％的抗蠕变性（200℃的总变形））和抗蠕变性（25℃时的总变形） 。）不超过15％。 提供耐蠕变性和抗挠曲疲劳性优异的聚四氟乙烯成型粉末作为反复弯曲的部件的成型材料，例如泵。
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5.发明授权公开(公告)号：US07528221B2
公开(公告)日：2009-05-05
申请号：US11791717
申请日：2005-11-30
CPC分类号： B29C67/04 , B29C43/003 , B29C43/006 , B29K2027/18 , C08F214/26 , C08F214/262 , C08J3/12 , C08J5/00 , C08J2327/18 , Y10T428/1352 , Y10T428/249953 , Y10T428/3154 , Y10T428/31544
摘要： It is an object of the present invention to obtain a PTFE molding excellent in flexing resistance without decreasing the tensile strength and tensile elongation. The present invention is a modified polytetrafluoroethylene molded article obtained by molding a modified polytetrafluoroethylene molding powder, wherein the modified polytetrafluoroethylene molding powder is not melt-moldable, the modified polytetrafluoroethylene constituting the modified polytetrafluoroethylene molding powder contains 0.01 to 1% by mass of a perfluorovinyl ether unit represented by the formula (I): (wherein X is a perfluoroalkyl group containing 1 to 6 carbon atoms or a perfluoroalkoxyalkyl group containing 4 to 9 carbon atoms) and the heat of crystallization thereof is 18.0 to 25.0 J/g as measured using a differential scanning calorimeter, and the modified polytetrafluoroethylene molded article has a heat of fusion of not more than 28 J/g and a flex life of at least 200×104 cycles.
摘要翻译： 本发明的目的是在不降低拉伸强度和拉伸伸长的情况下获得耐弯曲性优异的PTFE成型品。 本发明是通过将改性聚四氟乙烯成型用粉末成型而成的改性聚四氟乙烯成型体，其中改性聚四氟乙烯成型粉末不能熔融成型，构成改性聚四氟乙烯成型用粉末的改性聚四氟乙烯含有0.01〜1质量％的全氟乙烯基醚 由式（I）表示的单元（其中X是含有1至6个碳原子的全氟烷基或含有4至9个碳原子的全氟烷氧基烷基），其结晶热为18.0至25.0J / g，使用 差示扫描量热计，改性聚四氟乙烯模塑制品的熔融热不超过28J / g，弯曲寿命至少为200x104次。
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6.发明授权Fluororesin composition, fluororesin molded article and method for producing the same 有权氟树脂组合物，氟树脂成型体及其制造方法公开(公告)号：US08466236B2
公开(公告)日：2013-06-18
申请号：US12527510
申请日：2008-02-18
CPC分类号： B29B13/007 , B29K2027/12 , B29K2027/18 , C08L27/16 , C08L27/18 , C08L2205/02 , C08L2666/04
摘要： The invention provides a fluororesin composition capable of providing a molded article having low relative dielectric constant, excellent in a temperature stability and causing only small transmission losses. The invention is a fluororesin composition wherein a rate of change in relative dielectric constant between 25° C. and 80° C. of a molded article produced therefrom under a standard condition is not greater than 0.2%.
摘要翻译： 本发明提供一种氟树脂组合物，其能够提供具有低相对介电常数的模制品，其温度稳定性优异并且仅导致较小的传输损失。 本发明是一种氟树脂组合物，其中在标准条件下由其制备的模塑制品在25℃和80℃之间的相对介电常数的变化率不大于0.2％。
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公开(公告)号：US20080227880A1
公开(公告)日：2008-09-18
申请号：US12047370
申请日：2008-03-13
IPC分类号： C08J9/00
CPC分类号： B01D71/36 , B01D67/002 , B01D67/0025 , B01D69/02 , B01D71/26 , B01D71/32 , B01D71/34 , B01D2325/24 , C08J9/0061 , C08J2327/18
摘要： The present invention provides a molded porous body with very small air bubbles distributed therein as well as a filter using the porous body. The present invention is related to a porous body comprising a polytetrafluoroethylene-based resin and a thermoplastic resin other than the polytetrafluoroethylene-based resin, and having a specific gravity exceeding 1.80 but less than 2.18 and a percent conversion to crystals of not higher than 50%.
摘要翻译： 本发明提供一种其中分布有非常小的气泡的成型多孔体以及使用该多孔体的过滤器。 本发明涉及一种多孔体，其包含聚四氟乙烯类树脂和聚四氟乙烯类树脂以外的热塑性树脂，其比重超过1.80但小于2.18，转化率不高于50％ 。
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8.发明授权公开(公告)号：US06197862B1
公开(公告)日：2001-03-06
申请号：US09029857
申请日：1998-03-16
申请人： Michio Asano , Masamichi Sukegawa , Hirokazu Yukawa , Tetsuo Shimizu , Shoji Kawachi , Shingo Tanigawa
发明人： Michio Asano , Masamichi Sukegawa , Hirokazu Yukawa , Tetsuo Shimizu , Shoji Kawachi , Shingo Tanigawa
IPC分类号： C08K300
CPC分类号： C08J3/21 , C08J3/12 , C08J3/205 , C08J2327/18
摘要： Filler-containing polytetrafluoroethylene granular powder, which has a large apparent density, a small average particle size and a sharp particle size distribution and a superior powder flowability, and gives a molded product having a superior tensile strength, elongation and surface roughness, and a process for preparing the same. The granular powder is prepared by granulation of a mixture of a PTFE powder and a filler in water with stirring in the presence of an organic liquid forming liquid-liquid interface with water and a nonionic surfactant.
摘要翻译： 含有填充剂的聚四氟乙烯粒状粉末，其表观密度大，平均粒径小，粒径分布小，粉末流动性优异，得到拉伸强度，伸长率和表面粗糙度优异的成型体， 为准备相同。 在与水和非离子表面活性剂形成液 - 液界面的有机液体的存在下，在搅拌下将PTFE粉末和填料的混合物制粒成粒状粉末。
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公开(公告)号：US5709944A
公开(公告)日：1998-01-20
申请号：US468652
申请日：1995-06-06
申请人： Masuo Kokumai , Yukinaru Nakamura , Mitsuru Kishine , Tetsuo Kitahaba , Hirokazu Yukawa , Kazuhide Sawada , Sang Bong Han , Tetsuo Shimizu , Takahisa Aoyama
发明人： Masuo Kokumai , Yukinaru Nakamura , Mitsuru Kishine , Tetsuo Kitahaba , Hirokazu Yukawa , Kazuhide Sawada , Sang Bong Han , Tetsuo Shimizu , Takahisa Aoyama
IPC分类号： C08F214/26 , C08J3/12 , B32B5/16
CPC分类号： C08J3/12 , C08F214/262 , C08J2327/18 , Y10T428/2982
摘要： Polytetrafluoroethylene molding powder which comprises 0.01 to 1% by weight of a perfluoro(vinyl ether) unit and which has a heat of crystallization of 18.0 to 25.0 J/g. The molding powder provides a molded article which has a flex life of not less than 7 million cycles, a creep resistance (total deformation at 200.degree. C.) of not more than 20%, and a creep resistance (total deformation at 25.degree. C.) of not more than 15%. The polytetrafluoroethylene molding powder which is excellent in both creep resistance and flex fatigue resistance is provided as a molding material for parts which are repeatedly bent such as pump.
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公开(公告)号：US5154866A
公开(公告)日：1992-10-13
申请号：US862180
申请日：1992-04-02
申请人： Norimasa Honda , Hirokazu Yukawa
发明人： Norimasa Honda , Hirokazu Yukawa
CPC分类号： C08J9/24 , B29C67/205 , C08J9/00 , B29K2027/18 , C08J2327/18 , Y10S521/919
摘要： A molding process for preparing long and thick, large porous PTFE articles comprising preparation steps of a powder for molding which includes a step of gelation of PTFE powder; a pre-forming step by a ram-extrusion; a baking step of the pre-formed article under a non-constrained circumstance; and if necessary, a cooling step; said powder for molding being containing a binder which has a melting point of lower than that of PTFE and does not decompose at a baking temperature of PTFE.
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