公开(公告)号：US07968625B2

公开(公告)日：2011-06-28

申请号：US11916753

申请日：2006-06-09

申请人： Chie Sawauchi ,  Nobuhiko Tsuda

发明人： Chie Sawauchi ,  Nobuhiko Tsuda

IPC分类号： C08F6/10

CPC分类号： C08F14/18 ,  C08J3/05 ,  C08J2327/12 ,  C08K5/42 ,  C09D127/18 ,  C08F2/16 ,  C08L27/12

摘要： A process for producing an aqueous fluoropolymer dispersion which includes adding a specific compound to a to-be-treated aqueous fluoropolymer dispersion containing a particle of fluoropolymer dispersed therein, the to-be-treated aqueous fluoropolymer dispersion containing a fluorinated surfactant (A) with a molecular weight lower than 1000 in an amount of 100 ppm or less of the fluoropolymer and the specific compound being (1) a sulfosuccinic acid alkyl ester or a salt thereof, or a sulfosuccinic acid fluoroalkyl ester or a salt thereof, (2) the fluorinated surfactant (A), (3) a fluorinated surfactant (B) with a molecular weight lower than 1000, differing from the fluorinated surfactant (A) and/or (4) an aliphatic carboxylic acid or a salt thereof, which compound is added in total amount of 10 to 5000 ppm of said fluoropolymer.

摘要翻译： 一种含氟聚合物水分散体的制造方法，其特征在于，在含有含氟聚合物的分散体的待处理含水氟聚合物分散体中添加特定的化合物，含有氟化表面活性剂（A）的待处理含水氟聚合物分散液 （1）磺基琥珀酸烷基酯或其盐或磺基琥珀酸氟代烷基酯或其盐的分子量低于1000的氟聚合物，特定化合物的量低于1000，（2）氟化 表面活性剂（A），（3）分子量低于1000的氟化表面活性剂（B）与氟化表面活性剂（A）和/或（4）脂族羧酸或其盐不同，该化合物加入 总量为10〜5000ppm的所述含氟聚合物。

公开(公告)号：US20090069493A1

公开(公告)日：2009-03-12

申请号：US11918056

申请日：2006-04-13

申请人： Nobuhiko Tsuda ,  Chie Sawauchi

发明人： Nobuhiko Tsuda ,  Chie Sawauchi

IPC分类号： C08F6/14

CPC分类号： C08F6/20 ,  C08F6/16 ,  C08J3/05 ,  C08J2327/12 ,  C08L27/12

摘要： The invention provides a method of producing an aqueous fluoropolymer dispersion having a fluoropolymer concentration sufficiently high for practical purposes by using the technique of phase separation. The present invention is a method of producing an aqueous fluoropolymer dispersion comprising a step (1) of adding a nonionic surfactant having a cloud point to an aqueous fluoropolymer dispersion to be treated, a step (2), following the step (1), of phase separating into a supernatant phase and an aqueous fluoropolymer dispersion phase within a specific temperature range, and a step (3) of recovering the aqueous fluoropolymer dispersion phase by removing the supernatant phase, the specific temperature range being lower than the cloud point of the nonionic surfactant.

摘要翻译： 本发明提供了一种通过使用相分离技术制备含氟聚合物浓度足够高以达到实用目的的含氟聚合物水分散体的方法。 本发明是一种含氟聚合物水分散体的制造方法，其特征在于，包括将具有浊点的非离子表面活性剂添加到待处理的含氟聚合物水分散体的工序（1），工序（2），按照工序（1） 相分离成特定温度范围内的上清相和含氟聚合物水分散相，以及通过除去上清相回收含氟聚合物水分散相的步骤（3），其特定温度范围低于非离子表面活性剂的浊点 表面活性剂。

公开(公告)号：US08362168B2

公开(公告)日：2013-01-29

申请号：US13205560

申请日：2011-08-08

申请人： Chie Sawauchi ,  Nobuhiko Tsuda

发明人： Chie Sawauchi ,  Nobuhiko Tsuda

IPC分类号： C08F259/08 ,  C08F2/30

CPC分类号： C08F214/26 ,  C08F6/16 ,  C08F259/08 ,  C09D127/18 ,  C08L27/18 ,  C08F214/18

摘要： The present invention provides an aqueous fluoropolymer dispersion having good mechanical characteristics and storage stability and containing substantially no fluorinated surfactant. The present invention is related to an aqueous fluoropolymer dispersion comprising a dispersed fluoropolymer particle with an average primary particle diameter of 50 to 400 nm, a surface layer of the dispersed fluoropolymer particle being obtained by emulsion polymerization of a monomer composition consisting of 99.999 to 98 mole percent of tetrafluoroethylene and 0.001 to 2 mole percent of a modifier monomer, a fluorinated surfactant content being not higher than 50 ppm, a fluoropolymer content being 20 to 75% by mass, and a nonfluorinated nonionic surfactant content being 2 to 15% by mass relative to 100% by mass of the fluoropolymer.

摘要翻译： 本发明提供具有良好的机械特性和储存稳定性的含氟聚合物水分散体，并且基本上不含氟化表面活性剂。 本发明涉及含氟平均一次粒径为50〜400nm的分散含氟聚合物粒子的水性含氟聚合物分散体，分散的含氟聚合物粒子的表面层是将由99.999〜98摩尔的单体组合物 四氟乙烯百分比和0.001〜2摩尔％的改性剂单体，氟化表面活性剂含量不高于50ppm，含氟聚合物含量为20〜75质量％，非氟化非离子表面活性剂含量相对于2〜15质量％ 至100质量％的含氟聚合物。

公开(公告)号：US20100222491A1

公开(公告)日：2010-09-02

申请号：US12095653

申请日：2006-12-28

申请人： Chie Sawauchi ,  Nobuhiko Tsuda ,  Toshirou Miura

发明人： Chie Sawauchi ,  Nobuhiko Tsuda ,  Toshirou Miura

IPC分类号： C09D127/18 ,  C09D153/00

CPC分类号： C09D127/18 ,  C08L71/02 ,  C08L2666/14

摘要： The present invention has an object to provide an aqueous fluoropolymer dispersion which is excellently prevented from foaming without significant impairment in viscosity and in mechanical stability. The present invention is related to an aqueous fluoropolymer dispersion comprising a particle of fluoropolymer as dispersed in an aqueous medium in the presence of a specific nonionic surfactant, wherein the specific nonionic surfactant comprises a compound having an average total hydrophilic group content of 45 to 90% by mass, each hydrocarbon group in the compound constituting the specific nonionic surfactant is only a hydrocarbon group of 1 to 5 consecutively neighboring carbon atoms, and the fluorinated surfactant in the aqueous fluoropolymer dispersion amounts to 500 ppm or less of the solid matter of the fluoropolymer.

摘要翻译： 本发明的目的是提供一种水性含氟聚合物分散体，其优异地防止发泡而不会显着降低粘度和机械稳定性。 本发明涉及在特定的非离子表面活性剂的存在下，包含含氟聚合物颗粒分散在含水介质中的含氟聚合物水分散体，其中特定的非离子表面活性剂包括平均总亲水基团含量为45-90％ 构成特定非离子表面活性剂的化合物中的各烃基仅为1〜5个相邻碳原子的烃基，含氟聚合物分散体中的氟化表面活性剂的含氟聚合物的固体成分为500ppm以下 。

公开(公告)号：US07714047B2

公开(公告)日：2010-05-11

申请号：US12476172

申请日：2009-06-01

申请人： Nobuhiko Tsuda ,  Chie Sawauchi ,  Yasuhiko Sawada ,  Tetsuo Shimizu

发明人： Nobuhiko Tsuda ,  Chie Sawauchi ,  Yasuhiko Sawada ,  Tetsuo Shimizu

IPC分类号： C08K5/41

CPC分类号： C08F6/20 ,  C08F6/16 ,  C08F14/18 ,  C08F14/26 ,  C08F214/26 ,  C08L27/12 ,  C08F2/16

摘要： The present invention provides a method of producing a fluoropolymer aqueous dispersion by which the fluorine-containing emulsifier contained in the fluoropolymer aqueous dispersion as obtained after polymerization can be efficiently removed as well as a fluoropolymer aqueous dispersion low in fluorine-containing emulsifier concentration. The present invention is a method of producing a fluoropolymer aqueous dispersion which comprises carrying out a concentration treatment comprising a concentration operation of a pretreatment fluoropolymer aqueous dispersion, wherein the pretreatment fluoropolymer aqueous dispersion is obtained by carrying out a polymerization in an aqueous medium in the presence of a fluorine-containing surfactant (A), the fluorine-containing surfactant (A) is a fluorine-containing surfactant having an octanol/water partition coefficient of 1.5 to 3.5.

摘要翻译： 本发明提供一种含氟聚合物水性分散体的制造方法，其中可以有效地除去聚合后得到的含氟聚合物水分散体中所含的含氟乳化剂以及含氟乳化剂浓度低的含氟聚合物水分散体。 本发明是一种含氟聚合物水性分散体的制造方法，其特征在于，进行包含预处理含氟聚合物水分散液的浓缩操作的浓缩处理，其中，所述预处理含氟聚合物水分散体是通过在水性介质中进行聚合而得到的 含氟表面活性剂（A）的含氟表面活性剂（A）为辛醇/水分配系数为1.5〜3.5的含氟表面活性剂。

公开(公告)号：US20090069492A1

公开(公告)日：2009-03-12

申请号：US11911174

申请日：2006-04-13

申请人： Nobuhiko Tsuda ,  Chie Sawauchi

发明人： Nobuhiko Tsuda ,  Chie Sawauchi

IPC分类号： B01D53/56

CPC分类号： C08F6/20 ,  C08F6/16 ,  C08J3/05 ,  C08J2327/12 ,  C08L27/12

摘要： The invention provides a method of producing an aqueous fluoropolymer dispersion by which aqueous fluoropolymer dispersions high in fluoropolymer concentration can be prepared in a short period of time. The present invention provides a method of producing an aqueous fluoropolymer dispersion comprising a step (1) of adding a nonionic surfactant to an aqueous fluoropolymer dispersion to be treated, a step (2) of phase-separating into a supernatant phase and an aqueous fluoropolymer dispersion phase following the step (1), and a step (3) of recovering the aqueous fluoropolymer dispersion phase by removing the supernatant phase, stirring being provided in the step (2).

摘要翻译： 本发明提供了一种制备含氟聚合物含水聚合物分散体的方法，通过该方法可以在短时间内制备含氟聚合物浓度高的含氟聚合物分散体。 本发明提供一种含氟聚合物水分散体的制造方法，其特征在于，在含氟聚合物水性分散液中添加非离子性表面活性剂的工序（1），将上述相分离成上清相的步骤（2） 步骤（1）的步骤（3），和通过除去上清相，在步骤（2）中提供的搅拌来回收含氟聚合物水分散相的步骤（3）。

公开(公告)号：US07968644B2

公开(公告)日：2011-06-28

申请号：US11766532

申请日：2007-06-21

申请人： Chie Sawauchi ,  Nobuhiko Tsuda

发明人： Chie Sawauchi ,  Nobuhiko Tsuda

IPC分类号： C08L27/12

CPC分类号： D06M15/256

摘要： The present invention provides a method of producing a fluororesin aqueous dispersion which can produce a fluororesin aqueous dispersion low in fluorine-containing surfactant concentration and high in polytetrafluoroethylene concentration with high efficiency. The invention provides a method of producing a fluororesin aqueous dispersion which comprises subjecting a crude fluororesin aqueous dispersion comprising a polytetrafluoroethylene particle dispersed in an aqueous medium to treatment with an ion-exchange resin and to treatment for concentration by phase separation in the presence of an electrolyte and/or a fluorine-free anionic surfactant.

摘要翻译： 本发明提供一种能够高效率地制造含氟表面活性剂浓度低，聚四氟乙烯浓度高的氟树脂水分散体的氟树脂水分散体的制造方法。 本发明提供一种氟树脂水分散体的制造方法，其特征在于，将含有分散在水性介质中的聚四氟乙烯粒子的粗制氟树脂水分散液用离子交换树脂进行处理，并在电解液存在下进行相分离处理 和/或无氟阴离子表面活性剂。

公开(公告)号：US20090278092A1

公开(公告)日：2009-11-12

申请号：US12306452

申请日：2007-06-28

申请人： Chie Sawauchi ,  Nobuhiko Tsuda

发明人： Chie Sawauchi ,  Nobuhiko Tsuda

IPC分类号： C08L27/12 ,  H01B1/12

CPC分类号： C08J3/03 ,  C08J2327/12 ,  C09D127/18

摘要： The present invention provides an aqueous fluororesin dispersion comprising a melt-processable fluororesin which is low in fluorinated surfactant concentration and excellent in dispersion stability even when the concentration of the melt-processable fluororesin is high. The present invention is related to an aqueous fluororesin dispersion comprising a melt-processable fluororesin particle dispersed in an aqueous medium, wherein a concentration of the melt-processable fluororesin is 55 to 75% by mass relative to the aqueous fluororesin dispersion, and a fluorinated surfactant content in the aqueous fluororesin dispersion is not higher than a level corresponding to 100 ppm of the melt-processable fluororesin.

摘要翻译： 本发明提供一种包含可熔融加工的氟树脂的含水氟树脂分散体，其即使在可熔融加工的氟树脂的浓度高时，氟化表面活性剂浓度低，分散稳定性也优异。 本发明涉及一种含氟树脂分散体，其包含分散在水性介质中的可熔融加工的氟树脂颗粒，其中可熔融加工的氟树脂的浓度相对于氟树脂水分散体为55〜75质量％，氟化表面活性剂 氟树脂水分散液中的含量不高于可熔融加工的氟树脂的100ppm的水平。

公开(公告)号：US20070155891A1

公开(公告)日：2007-07-05

申请号：US10582107

申请日：2004-12-09

申请人： Nobuhiko Tsuda ,  Chie Sawauchi ,  Yasuhiko Sawada ,  Tetsuo Shimizu

发明人： Nobuhiko Tsuda ,  Chie Sawauchi ,  Yasuhiko Sawada ,  Tetsuo Shimizu

IPC分类号： C08L27/12

CPC分类号： C08J3/03 ,  C08F6/16 ,  C08F14/26 ,  C08F214/26 ,  C08J2327/12 ,  C08L27/18 ,  C08L71/02 ,  C08L27/12 ,  C08F2/20 ,  C08L2666/14

摘要： The object of the present invention is a fluoropolymer aqueous dispersion showing only a moderate viscosity increase upon temperature rise and having a low fluorine-containing anionic surfactant concentration as well as a method of producing such fluoropolymer aqueous dispersion. The present invention provides a fluoropolymer aqueous dispersion comprising a particle comprising a fluoropolymer dispersed in an aqueous medium in the presence of a nonionic surfactant, wherein a supernatant for assaying as obtained by subjecting the fluoropolymer aqueous dispersion to 30 minutes of centrifugation at 25° C. and at a gravitational acceleration of 1677 G, when subjected to high-performance liquid chromatography [HPLC] under the conditions of a flow rate of 1.0 ml/minute and a column temperature of 40° C. using an acetonitrile/0.05 M aqueous solution of phosphoric acid (60/40% by volume) mixture as a developing solution, followed by detection at an absorption wavelength at which the nonionic surfactant can be identified, shows a ratio (A1/A0), which is the ratio between the total area (A0) under the detected line and the area (A1) under the detected line over a retention time period shorter than 16 minutes, of not lower than 0.4 and the supernatant for assaying has a fluorine-containing anionic surfactant content of not higher than 100 ppm.

摘要翻译： 本发明的目的是提供一种含氟聚合物水性分散体，其含氟聚合物水性分散体的制造方法，仅在温度上升时适度粘度上升，含氟阴离子表面活性剂浓度低的方法。 本发明提供一种含氟聚合物水分散体，其包含在非离子表面活性剂存在下分散在含水介质中的含氟聚合物的颗粒，其中通过在25℃下使含氟聚合物水分散体离心30分钟获得的上清液 并且在1677G的重力加速度下，在流速为1.0ml /分钟，柱温为40℃的条件下进行高效液相色谱[HPLC]，使用乙腈/0.0M的 磷酸（60/40体积％）混合物作为显影液，然后在可以鉴定非离子表面活性剂的吸收波长处进行检测，显示出比例（A≤0.1/ 0 ），其是在检测到的线下的总面积（A ^{0 ）与所检测到的线之间的面积（A 1 < 保留时间短于16分钟，不低于 0.4，测定用上清液的含氟阴离子表面活性剂含量不高于100ppm。}

公开(公告)号：US08299155B2

公开(公告)日：2012-10-30

申请号：US13034018

申请日：2011-02-24

申请人： Chie Sawauchi ,  Nobuhiko Tsuda ,  Wade Martin Simpson

发明人： Chie Sawauchi ,  Nobuhiko Tsuda ,  Wade Martin Simpson

IPC分类号： C04B24/22 ,  C08K5/095

CPC分类号： C09D127/18 ,  C08J3/05 ,  C08J2327/12 ,  C08K5/04 ,  C08K5/20 ,  C08K5/42 ,  C08L39/06 ,  C08L71/02 ,  C08L2666/04 ,  C08L2666/14

摘要： An object of the present invention is to provide an aqueous fluoropolymer dispersion inhibited from viscosity rising and excellent in mechanical stability in spite of a low fluorinated surfactant concentration. The invention provides an aqueous fluoropolymer dispersion comprising particles of a fluoropolymer as dispersed in an aqueous medium wherein a fluorinated surfactant (A) having a molecular weight lower than 1000 amounts to not higher than 100 ppm of the mass of the fluoropolymer, the aqueous fluoropolymer dispersion containing an anionic surfactant (B) other than the fluorinated surfactant (A) as well as a water-soluble polymer (C).

摘要翻译： 本发明的目的是提供尽管氟化表面活性剂浓度低的氟聚合物分散体，其粘度上升和机械稳定性优异。 本发明提供一种含氟聚合物分散体，其包含分散在水性介质中的含氟聚合物颗粒，其中分子量低于1000的氟化表面活性剂（A）的含量不超过100ppm，含氟聚合物水分散体 含有氟化表面活性剂（A）以外的阴离子表面活性剂（B）以及水溶性聚合物（C）。