公开(公告)号：US20080199699A1

公开(公告)日：2008-08-21

申请号：US12101064

申请日：2008-04-10

申请人： Masayuki Tsuji ,  Michio Asano ,  Masamichi Sukegawa

发明人： Masayuki Tsuji ,  Michio Asano ,  Masamichi Sukegawa

IPC分类号： B32B5/16 ,  C08J3/12 ,  B02C19/06

CPC分类号： C08J3/122 ,  C08J3/12 ,  C08J2327/18 ,  C08L27/18 ,  C08L2205/02 ,  Y10T428/2982 ,  C08L2666/04

摘要： This invention provides a polytetrafluoroethylene powder capable of giving moldings which are improved in surface roughness Ra tensile strength and/or tensile elongation as compared with the prior art ones and can be excellent in dielectric breakdown strength and, further, can be excellent, if desired, in apparent density and/or powder flowability as well, and a method of producing a polytetrafluoroethylene molding powder.The present invention is a PTFE powder wherein a surface roughness Ra of molded articles a1 for measurement is less than 0.92 μm.

摘要翻译： 本发明提供一种与现有技术相比能够提供表面粗糙度Ra拉伸强度和/或拉伸伸长率的模塑制品的聚四氟乙烯粉末，并且可以具有优异的绝缘击穿强度，并且如果需要，可以是优异的， 表观密度和/或粉末流动性以及聚四氟乙烯成型粉末的制造方法。 本发明是一种PTFE粉末，其中用于测量的模制品a1的表面粗糙度Ra小于0.92μm。

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

IPC分类号： C08J3/12 ,  C08J3/205 ,  C08J3/21 ,  C08L27/18 ,  C08L27/12

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。

公开(公告)号：US08247506B2

公开(公告)日：2012-08-21

申请号：US12101064

申请日：2008-04-10

申请人： Masayuki Tsuji ,  Michio Asano ,  Masamichi Sukegawa

发明人： Masayuki Tsuji ,  Michio Asano ,  Masamichi Sukegawa

IPC分类号： C08F214/18

CPC分类号： C08J3/122 ,  C08J3/12 ,  C08J2327/18 ,  C08L27/18 ,  C08L2205/02 ,  Y10T428/2982 ,  C08L2666/04

摘要： This invention provides a polytetrafluoroethylene powder capable of giving moldings which are improved in surface roughness Ra, tensile strength and/or tensile elongation as compared with the prior art ones and can be excellent in dielectric breakdown strength and, further, can be excellent, if desired, in apparent density and/or powder flowability as well, and a method of producing a polytetrafluoroethylene molding powder. The present invention is a PTFE powder wherein a surface roughness Ra of molded articles a1 for measurement is less than 0.92 μm.

摘要翻译： 本发明提供一种与现有技术相比能够提供表面粗糙度Ra，拉伸强度和/或拉伸伸长率的模塑制品的聚四氟乙烯粉末，并且可以具有优异的介电击穿强度，并且如果需要，还可以是优异的 ，表观密度和/或粉末流动性以及聚四氟乙烯成型粉末的制造方法。 本发明是一种PTFE粉末，其中用于测量的模制品a1的表面粗糙度Ra小于0.92μm。

公开(公告)号：US06350801B1

公开(公告)日：2002-02-26

申请号：US09403596

申请日：1999-10-22

申请人： Michio Asano ,  Masamichi Sukegawa

发明人： Michio Asano ,  Masamichi Sukegawa

IPC分类号： C08K340

CPC分类号： C08J3/205 ,  C08J2327/18

摘要： To provide a filler-containing PTFE granular powder, which has a large apparent density, a small average particle size, a narrow particle size distribution, a superior powder flowability and a small electrostatic charge, and gives a molded product having a superior tensile strength and elongation, a lower surface roughness and a high whiteness, and a process for preparing the same. The granular powder is prepared by forming a PTFE powder and a filler into an aqueous slurry by using an organic liquid forming liquid-liquid interface with water and a nonionic surfactant having a hydrophobic segment and a hydrophilic segment, and then granulating in combination of stirring and deagglomerating.

摘要翻译： 为了提供具有大的表观密度，小的平均粒度，窄的粒度分布，优异的粉末流动性和小的静电荷的含填料的PTFE粒状粉末，并且得到具有优异的拉伸强度和 伸长率，较低的表面粗糙度和较高的白度，及其制备方法。 通过使用与水形成液 - 液界面的有机液体和具有疏水链段和亲水链段的非离子表面活性剂，将PTFE粉末和填料形成为含水浆料，然后将搅拌和 解散。

公开(公告)号：US20050010007A1

公开(公告)日：2005-01-13

申请号：US10493762

申请日：2002-10-24

申请人： Massayuki Tsuji ,  Michio Asano ,  Masamichi Sukegawa

发明人： Massayuki Tsuji ,  Michio Asano ,  Masamichi Sukegawa

IPC分类号： C08J3/12 ,  C08L27/18 ,  C08F14/18

CPC分类号： C08J3/122 ,  C08J3/12 ,  C08J2327/18 ,  C08L27/18 ,  C08L2205/02 ,  Y10T428/2982 ,  C08L2666/04

摘要： This invention provides a polytetrafluoroethylene powder capable of giving moldings which are improved in surface roughness Ra, tensile strength and/or tensile elongation as compared with the prior art ones and can be excellent in dielectric breakdown strength and, further, can be excellent, if desired, in apparent density and/or powder flowability as well, and a method of producing a polytetrafluoroethylene molding powder. The present invention is a PTFE powder wherein a surface roughness Ra of molded articles a1 for measurement is less than 0.92 μm.

摘要翻译： 本发明提供一种与现有技术相比能够提供表面粗糙度Ra，拉伸强度和/或拉伸伸长率的模塑制品的聚四氟乙烯粉末，并且可以具有优异的介电击穿强度，并且如果需要，还可以是优异的 ，表观密度和/或粉末流动性以及聚四氟乙烯成型粉末的制造方法。 本发明是一种PTFE粉末，其中用于测量的模制品a1的表面粗糙度Ra小于0.92μm。

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。

公开(公告)号：US06930142B2

公开(公告)日：2005-08-16

申请号：US10239500

申请日：2001-03-21

申请人： Tomihiko Yanagiguchi ,  Masamichi Sukegawa ,  Michio Asano

发明人： Tomihiko Yanagiguchi ,  Masamichi Sukegawa ,  Michio Asano

IPC分类号： B29C43/00 ,  C08J5/00 ,  F16J15/16 ,  C08F3/00

CPC分类号： C08J5/00 ,  B29C43/006 ,  B29K2027/18 ,  B29L2031/26 ,  C08J2327/18

摘要： A seal ring with a sliding surface, which is obtained by molding a molding powder or granulated powder of non-melt-moldable modified polytetrafluoroethylene containing 0.01 to 1% by weight of a perfluorovinylether unit represented by the formula (I): —CF2—CF(—O—X)—  (I) wherein X represents a perfluoroalkyl group having 1 to 6 carbon atoms or a perfluoroalkoxyalkyl group having 2 to 9 carbon atoms, the modified polytetrafluoroethylene having a heat of crystallization of 18 to 25J/g measured by a differential scanning calorimeter.

摘要翻译： 一种具有滑动表面的密封环，其通过模制含有0.01至1重量％的由式（I）表示的全氟乙烯基醚单元的不可熔融模塑的改性聚四氟乙烯的模制粉末或造粒粉末获得： line-formula description =“In-line Formulas”end =“lead”？ - CF <2> -CF（-OX） - （I）<？in-line-formula description =“In- 其中X表示碳原子数为1〜6的全氟烷基或碳原子数为2〜9的全氟烷氧基烷基，其结晶度为18〜25J / g的改性聚四氟乙烯通过 差示扫描量热仪

公开(公告)号：US06759470B2

公开(公告)日：2004-07-06

申请号：US10125543

申请日：2002-04-19

申请人： Masamichi Sukegawa ,  Michio Asano

发明人： Masamichi Sukegawa ,  Michio Asano

IPC分类号： C08L2718

CPC分类号： C08L27/18 ,  C08L67/03 ,  Y10S525/934 ,  C08L2666/14

摘要： There is provided a resin powder for molding which comprises 35 to 98% by weight of a polytetrafluoroethylene powder having an average particle size of not more than 120 &mgr;m, 35 to 2% by weight of a heat resistant aromatic polyoxybenzoyl ester resin powder subjected to water repelling treatment and 30 to 0% by weight of an inorganic filler, has an apparent density of not less than 0.6 g/cm3 and an average particle size of not more than 800 &mgr;m, and provides a molded article having an elongation at break of not less than 20%. The resin powder for molding is free from separation of a filler, has excellent flowability and apparent density which are important characteristics in handling the powder, and can provide a PTFE molded article having a high elongation which has not been obtained.

摘要翻译： 提供了一种成型用树脂粉末，其包含35〜98重量％的平均粒径为120μm以下的聚四氟乙烯粉末，35〜2重量％的耐水性芳香族聚氧苯甲酰酯树脂粉末， 无机填料的30〜0重量％，表观密度不小于0.6g / cm 3，平均粒径不大于800μm，并且提供具有伸长率的模制品 休息不少于20％。 用于模塑的树脂粉末不会分离填料，具有优异的流动性和表观密度，这是处理粉末的重要特征，并且可以提供未获得的具有高伸长率的PTFE模塑制品。

公开(公告)号：US06451903B1

公开(公告)日：2002-09-17

申请号：US09381130

申请日：1999-09-16

申请人： Michio Asano ,  Masamichi Sukegawa

发明人： Michio Asano ,  Masamichi Sukegawa

IPC分类号： C08L2712

CPC分类号： C08J3/12 ,  C08J3/205 ,  C08J2327/18

摘要： Filler-containing polytetrafluoroethylene granular powder, which has a large apparent density, a small average particle size, a narrow particle size distribution, a superior powder flowability, a small electrostatic charge and gives a molded product having a superior tensile strength and elongation a high degree of whiteness and a low surface roughness, and a process for preparing the same. The granulation is carried out by stirring, in water, of a PTFE powder and a filler in the presence of an organic liquid forming liquid-liquid interface with water and an anionic surfactant and/or nonionic surfactant such as a segmented polyalkylene glycol having a hydrophobic segment and hydrophilic segment and deagglomerating of the powder.

摘要翻译： 含有填料的聚四氟乙烯粒状粉末，其表观密度大，平均粒径小，粒度分布窄，粉末流动性优异，静电荷少，得到拉伸强度和伸长率高的成型体 的白度和低表面粗糙度，及其制备方法。 在与水和阴离子表面活性剂和/或非离子表面活性剂的有机液体形成液 - 液界面的存在下，在水中搅拌PTFE粉末和填料进行造粒，例如具有疏水性的分段聚亚烷基二醇 段和亲水段和粉末的解聚。

公开(公告)号：US06300408B1

公开(公告)日：2001-10-09

申请号：US09381101

申请日：1999-09-15

申请人： Michio Asano ,  Masayuki Tsuji

发明人： Michio Asano ,  Masayuki Tsuji

IPC分类号： C08F1624

CPC分类号： C08J3/12 ,  B01J20/18 ,  B01J20/2805 ,  C08J2327/18

摘要： To provide a modified PTFE granular powder which has a large apparent density, a small average particle size, a narrow particle size distribution, an electrostatic charge substantially approximate to zero, a small angle of repose and being excellent in powder characteristics, particularly particle stability. The modified PTFE powder is granulated with stirring in water under coexistence of an organic liquid which forms liquid-liquid interface with water and a nonionic surfactant of segmented polyalkylene glycols which has a hydrophobic segment and a hydrophilic segment. A molded article obtained from the granular powder is excellent in tensile strength and elongation and has a small surface roughness, a large break down voltage and a large whiteness (Z value).

摘要翻译： 为了提供具有大的表观密度，小的平均粒度，窄的粒度分布，静电电荷基本上接近零，小的休止角度和粉末特性，特别是颗粒稳定性的改性PTFE颗粒粉末。 在与水形成液 - 液界面的有机液体和具有疏水链段和亲水链段的分段聚亚烷基二醇的非离子表面活性剂的共存下，将改性PTFE粉末在水中搅拌造粒。 由粒状粉末得到的成型品的拉伸强度和伸长率优异，表面粗糙度小，破坏电压大，白度大（Z值）大。