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1. 发明授权

US07973127B2 Method for producing polytetrafluoroethylene fine powder 有权
标题翻译：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。

2. 发明授权

US08575287B2 Method for producing polytetrafluoroethylene fine powder 有权
标题翻译：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。

3. 发明授权

US09376520B2 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
标题翻译：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。

4. 发明申请

US20060276574A1 Aqueous dispersion of polytetrafluoroethylene and process for its production 有权
公开(公告)号：US20060276574A1
公开(公告)日：2006-12-07
申请号：US11414400
申请日：2006-05-01
申请人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
发明人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
IPC分类号： C08K5/00
CPC分类号： C08F6/16 , C08F6/20 , C08J3/05 , C08J2327/18 , C08K5/09 , C08K5/19 , C08L27/18 , C08L71/02 , C09D127/18 , C08L2666/14
摘要： To obtain a high concentration aqueous PTFE dispersion containing PTFE at a concentration of from 60 to 75 mass % by dissolving from 0.001 to 0.1 mass %, based on the mass of PTFE, of a specific carboxylic acid salt such as ammonium laurate in a low concentration aqueous dispersion of polytetrafluoroethylene (PTFE) comprising from 1 to 40 mass % of PTFE fine particles, from 0.0001 to 0.02 mass %, based on the mass of PTFE, of a specific fluorine-containing carboxylic acid type emulsifier (for example, ammonium perfluorooctanoate), and from 1 to 20 mass %, based on the mass of PTFE, of a specific nonionic surfactant, and then concentrating the low concentration aqueous dispersion of PTFE. The present invention provides a process for producing a high concentration aqueous PTFE dispersion containing PTFE at a high concentration by using, as a starting material, a low concentration aqueous dispersion of PTFE containing a fluorine-containing carboxylic acid type emulsifier (PFCA) at a low concentration, and an aqueous PTFE dispersion obtained from the high concentration aqueous PTFE dispersion.

5. 发明授权

US07834137B2 Process for producing aqueous fluorinated polymer dispersion having reduced content of fluorinated emulsifier 有权
标题翻译：制备氟化乳化剂含量降低的氟化聚合物水分散体的方法
公开(公告)号：US07834137B2
公开(公告)日：2010-11-16
申请号：US12434075
申请日：2009-05-01
申请人： Shinya Higuchi , Jun Hoshikawa , Hiroki Kamiya , Yasuhiko Matsuoka , Hiroki Nagai
发明人： Shinya Higuchi , Jun Hoshikawa , Hiroki Kamiya , Yasuhiko Matsuoka , Hiroki Nagai
IPC分类号： C08F6/00 , C08J3/00
CPC分类号： C08F2/22 , C08F6/16 , C08F14/18 , C08F14/26 , C08F214/26 , C08L27/12 , C08F2/10 , C08F2/16
摘要： Provided is a process for producing an aqueous fluorinated polymer dispersion having a reduced content of a fluorinated emulsifier by using a weakly basic anion-exchange resin to adsorb and remove a fluorinated emulsifier with excellent efficiency from an aqueous fluorinated polymer dispersion. Also provided is a process for producing an aqueous fluorinated polymer dispersion having a reduced content of a fluorinated emulsifier, wherein the process includes: adding an organic carboxylic acid represented by the following formula (1): Q(CH2)m(CH(OH))nCOOH (1) wherein Q is H, CH3 or COOH, m and n each independently represent 0 or an integer of from 1 to 4, and 4≧n+m≧1, to an aqueous fluorinated polymer dispersion containing a fluorinated emulsifier; and then contacting with a weakly basic anion-exchange resin to adsorb and remove the fluorinated emulsifier.
摘要翻译：本发明提供一种通过使用弱碱性阴离子交换树脂从氟化聚合物水分散体水溶液中以高效率吸附除去含氟乳化剂的含氟乳化剂含量降低的含氟聚合物水分散体的制造方法。还提供了一种具有降低的含氟乳化剂含量的含氟聚合物水分散体的制备方法，其中所述方法包括：加入由下式（1）表示的有机羧酸：Q（CH 2）m（CH（OH））nCOOH（1）其中Q为H，CH 3或COOH，m和n各自独立地表示0或1〜4的整数，4≥n+m≥1，含氟聚合物分散体含氟化乳化剂; 然后与弱碱性阴离子交换树脂接触以吸附和除去含氟乳化剂。

6. 发明授权

US07709566B2 Polytetrafluoroethylene aqueous dispersion and its product 有权
标题翻译：聚四氟乙烯水性分散体及其制品
公开(公告)号：US07709566B2
公开(公告)日：2010-05-04
申请号：US12106515
申请日：2008-04-21
申请人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka , Nobuyuki Yamagishi
发明人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka , Nobuyuki Yamagishi
IPC分类号： C03C25/28 , C09D5/02
CPC分类号： B01F17/0035 , B01F17/0085 , C08F14/26 , C08K5/095 , C08L27/18 , C08L71/02 , C08F2/20 , C08F2/16 , C08L2666/22
摘要： To provide a polytetrafluoroethylene (PTFE) aqueous dispersion, which does not substantially contain ammonium perfluorooctanoate and is excellent in mechanical stability, wettability, permeability and coating property, and its product.A PTFE aqueous dispersion comprising from 15 to 70 mass % of PTFE fine particles having an average particle size of from 0.1 to 0.5 μm, from 1×10−5 to 0.5 mass %, based on the mass of the PTFE, of a fluorinated emulsifier of the formula (1): XCF2CF2(O)mCF2CF2OCF2COOA, wherein X is a hydrogen atom or a fluorine atom, A is a hydrogen atom, an alkali metal or NH4 and m is an integer of 0 or 1, and from 1 to 20 mass %, based on the mass of the PTFE, of a nonionic surfactant.
摘要翻译：提供基本上不含全氟辛酸铵并且机械稳定性，润湿性，渗透性和涂布性优异的聚四氟乙烯（PTFE）水性分散体及其制品。一种PTFE水性分散体，其特征在于，含有15〜70质量％的PTFE微粒，平均粒径为0.1〜0.5μm，以质量计为1×10-5〜0.5质量％的氟化乳化剂式（1）表示的化合物：XCF 2 CF 2（O）m CF 2 CF 2 OCF 2 COOA，其中X为氢原子或氟原子，A为氢原子，碱金属或NH 4，m为0或1的整数和1至20 基于PTFE的质量的非离子表面活性剂的质量％。

7. 发明授权

US07671123B2 Fluororesin aqueous dispersion with polyoxyalkylene ester surfactant 有权
标题翻译：氟树脂水分散体与聚亚氧烷基酯表面活性剂
公开(公告)号：US07671123B2
公开(公告)日：2010-03-02
申请号：US11776848
申请日：2007-07-12
申请人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka , Nobuyuki Yamagishi
发明人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka , Nobuyuki Yamagishi
IPC分类号： C08L27/12 , C08L27/18 , C08L71/02 , C08K5/05 , C08K5/06 , C08K5/095 , C08K5/101
CPC分类号： C08L27/12 , C08L27/18 , C08L71/02 , C08L2666/14 , C08L2666/22
摘要： A fluororesin aqueous dispersion comprising from 20 to 70 mass % of microparticles of a fluororesin and from 1 to 12 mass %, based on the mass of the fluororesin, of a non-ionic surfactant represented by the formula (1): R1—O-A-X (1) wherein R1 is a C6-18 alkyl group, O is an oxygen atom, A is a polyoxyalkylene group comprising from 1 to 3 oxybutylene groups and from 5 to 20 oxyethylene groups, and X is a hydrogen atom or a methyl group.
摘要翻译：一种氟树脂水分散体，其包含20至70质量％的氟树脂微粒和1至12质量％，基于所述氟树脂的质量，由式（1）表示的非离子表面活性剂：R1-OAX（ 1）其中R 1为C 6-18烷基，O为氧原子，A为包含1至3个氧基亚丁基和5至20个氧乙烯基的聚氧化烯基，X为氢原子或甲基。

8. 发明申请

US20070043164A1 Process for producing aqueous dispersion of purified polytetrafluoroethylene 有权
公开(公告)号：US20070043164A1
公开(公告)日：2007-02-22
申请号：US11282624
申请日：2005-11-21
申请人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
发明人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
IPC分类号： D06M15/277
CPC分类号： C08F6/16 , C08L27/18
摘要： A process for producing an aqueous dispersion of purified polytetrafluoroethylene (PTFE), comprising passing a crude aqueous dispersion of PTFE comprising from 10 to 50 mass % of PTFE fine particles having an average particle diameter of from 0.1 to 0.5 μm, from 0.05 to 1.0 mass %, based on PTFE, of a fluorine-containing carboxylic acid salt (APFO) and from 2 to 20 mass %, based on PTFE, of a nonionic surfactant through a column packed with a weak basic AER upward at a linear velocity of 0.1 to 2 mm/sec with a contact time of 0.2 to 4 hours to reduce the APFO concentration. The process can increase the absorption of APFO by the anion exchange resin, prevents agglomeration of PTFE during passage and makes it easy to elute the absorbed APFO.

9. 发明授权

US07514484B2 Aqueous dispersion of polytetrafluoroethylene and process for its production 有权
标题翻译：聚四氟乙烯的水分散体及其生产方法
公开(公告)号：US07514484B2
公开(公告)日：2009-04-07
申请号：US11414400
申请日：2006-05-01
申请人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
发明人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
IPC分类号： C08F1/00
CPC分类号： C08F6/16 , C08F6/20 , C08J3/05 , C08J2327/18 , C08K5/09 , C08K5/19 , C08L27/18 , C08L71/02 , C09D127/18 , C08L2666/14
摘要： To obtain a high concentration aqueous PTFE dispersion containing PTFE at a concentration of from 60 to 75 mass % by dissolving from 0.001 to 0.1 mass %, based on the mass of PTFE, of a specific carboxylic acid salt such as ammonium laurate in a low concentration aqueous dispersion of polytetrafluoroethylene (PTFE) comprising from 1 to 40 mass % of PTFE fine particles, from 0.0001 to 0.02 mass %, based on the mass of PTFE, of a specific fluorine-containing carboxylic acid type emulsifier (for example, ammonium perfluorooctanoate), and from 1 to 20 mass %, based on the mass of PTFE, of a specific nonionic surfactant, and then concentrating the low concentration aqueous dispersion of PTFE. The present invention provides a process for producing a high concentration aqueous PTFE dispersion containing PTFE at a high concentration by using, as a starting material, a low concentration aqueous dispersion of PTFE containing a fluorine-containing carboxylic acid type emulsifier (PFCA) at a low concentration, and an aqueous PTFE dispersion obtained from the high concentration aqueous PTFE dispersion.
摘要翻译：为了得到浓度为60〜75质量％的PTFE的高浓度PTFE分散液，以PTFE为基准，以0.001〜0.1质量％的比例溶解低浓度的月桂酸铵等特定的羧酸盐含有1〜40质量％的PTFE细颗粒的聚四氟乙烯（PTFE）水分散体，相对于PTFE的质量为0.0001〜0.02质量％的特定的含氟羧酸型乳化剂（例如全氟辛酸铵），基于PTFE的质量为1〜20质量％的特定非离子表面活性剂，然后浓缩PTFE的低浓度水性分散体。本发明提供以低浓度使用含有含氟羧酸型乳化剂（PFCA）的PTFE的低浓度水性分散体作为起始原料，制造含有高浓度PTFE的高浓度PTFE分散液的方法。浓度，以及由高浓度PTFE水性分散液得到的PTFE分散液。

10. 发明授权

US07514483B2 Aqueous dispersion of polytetrafluoroethylene and process for its production 失效
标题翻译：聚四氟乙烯的水分散体及其生产方法
公开(公告)号：US07514483B2
公开(公告)日：2009-04-07
申请号：US11282625
申请日：2005-11-21
申请人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
发明人： Jun Hoshikawa , Shinya Higuchi , Yasuhiko Matsuoka
IPC分类号： C08F1/00
CPC分类号： C08K5/04 , C08K5/17 , H05K3/285 , C08L27/18
摘要： An aqueous dispersion of polytetrafluoroethylene (PTFE) comprising from 55 to 70 mass % of PTFE fine particles having an average particle diameter of from 0.1 to 0.5 μm, from 0.0001 to 0.02 mass %, based on PTFE, of a specific C8 fluorine-containing carboxylic acid salt (APFO) such as ammonium perfluorooctanoate, from 1 to 20 mass %, based on PTFE, of a specific nonionic surfactant and from 0.01 to 0.3 mass %, based on PTFE, of a specific C5-7 fluorine-containing carboxylic acid salt such as ammonium perfluorohexanoate. The aqueous dispersion of PTFE has excellent properties which can form crack-resistant coatings which do not undergo coloration during baking or form problematic ionic impurities by improving the friction stability of aqueous PTFE dispersions even at APFO concentrations without viscosity increase.
摘要翻译：聚四氟乙烯（PTFE）的水分散体，其特征在于，含有55〜70质量％的平均粒径为0.1〜0.5μm，PTFE为0.0001〜0.02质量％的特定的C8含氟羧酸的PTFE微粒酸性盐（APFO）如全氟辛酸铵，1至20质量％，基于PTFE，特定的非离子表面活性剂，0.01至0.3质量％，基于PTFE，特定的C5-7含氟羧酸盐如全氟己酸铵。 PTFE的水性分散体具有优异的性能，其可以形成在烘烤过程中不会着色或形成有问题的离子杂质的抗裂性涂层，即使在APFO浓度下也不改变粘度增加的水性PTFE分散体的摩擦稳定性。

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