公开(公告)号：US5789504A

公开(公告)日：1998-08-04

申请号：US619654

申请日：1996-03-22

申请人： Kiyohiko Ihara ,  Kazuhiro Nakai ,  Yoshiki Maruya

发明人： Kiyohiko Ihara ,  Kazuhiro Nakai ,  Yoshiki Maruya

IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F2/06 ,  C08F2/14 ,  C08F14/26

CPC分类号： C08F14/26

摘要： A process for preparing low molecular weight polytetrafluoroethylene having a melting point of 250.degree. C. to 325.degree. C. comprising polymerizing tetrafluoroethylene in at least one polymerization solvent selected from the group consisting of hydrochlorofluorocarbons, hydrofluorocarbons and perfluorocarbons which have boiling points in the range between -10.degree. C. and 70.degree. C. under constant pressure by the supplement of tetrafluoroethylene. According to this process, the low molecular weight polytetrafluoroethylene which is useful as an additive to various materials is produced in the solvent which has a low ozone destruction factor or does not destroy the ozone, under economically advantageous low pressure which can be controlled safely.

摘要翻译： PCT No.PCT / JP94 / 01558 Sec。 371日期：1996年3月22日 102（e）1996年3月22日PCT PCT 1994年9月22日PCT公布。 公开号WO95 / 08580 日期：1995年3月30日一种制备熔点为250℃至325℃的低分子量聚四氟乙烯的方法，包括在至少一种聚合溶剂中聚合四氟乙烯，所述聚合溶剂选自氢氟氯烃，氢氟烃和具有沸点的全氟化碳 通过补充四氟乙烯在恒定压力下在-10℃至70℃的范围内。 根据该方法，可以在可以安全控制的经济上有利的低压下，在具有低臭氧破坏因子或不破坏臭氧的溶剂中生产可用作各种材料的添加剂的低分子量聚四氟乙烯。

公开(公告)号：US20050090613A1

公开(公告)日：2005-04-28

申请号：US10689732

申请日：2003-10-22

申请人： Yoshiki Maruya ,  Michio Asano ,  Shunji Kasai ,  Kenji Ichikawa

发明人： Yoshiki Maruya ,  Michio Asano ,  Shunji Kasai ,  Kenji Ichikawa

IPC分类号： C08F14/18 ,  C08K3/00

CPC分类号： C08F14/18 ,  C08L27/12 ,  C08L27/18 ,  C08L71/02 ,  C08F2/16 ,  C08L2666/22

摘要： There is provided a fluorine-containing polymer latex providing a fluorine-containing polymer material being excellent in mechanical properties of a molded article. The preparation process comprises emulsion-polymerizing a fluorine-containing olefin solely or a fluorine-containing olefin and other monomer in an aqueous medium in the presence of at least one of fluorine-containing surfactants represented by the formula (I): F(CF2mO—(CF(X)CF2—OnCF(X)COOM wherein X is fluorine atom or a linear or branched lower perfluoroalkyl group; —COOM is a carboxylic acid salt; m is an integer of from 3 to 10; n is 0, 1 or 2. There are also provided a molding material and dispersion comprising a tetrafluoroethylene/hexafluoropropylene copolymer, polytetrafluoroethylene or fluoro elastomer which are obtained by the above-mentioned preparation process.

摘要翻译： 提供一种提供模塑制品的机械性能优异的含氟聚合物材料的含氟聚合物胶乳。 制备方法包括在至少一种由式（I）表示的含氟表面活性剂存在下，在含水介质中将含氟烯烃单独或含氟烯烃和其它单体乳化聚合： line-formula description =“In-line Formulas”end =“lead”？> F（CF 2） O-（CF（X）CF 2 CF（X）COOM <αin-line-formula description =“In-line Formulas”end =“tail”？>其中X是氟原子或线性 或支链低级全氟烷基; -COOM为羧酸盐; m为3〜10的整数，n为0,1或2.还提供了包含四氟乙烯/六氟丙烯共聚物，聚四氟乙烯或 氟弹性体，其通过上述制备方法获得。

公开(公告)号：US20060014904A1

公开(公告)日：2006-01-19

申请号：US11160863

申请日：2005-07-13

申请人： Masahiko Oka ,  Katsuyoshi Kubo ,  Tsuyoshi Miyamori ,  Yoshiki Maruya ,  Megumi Satou

发明人： Masahiko Oka ,  Katsuyoshi Kubo ,  Tsuyoshi Miyamori ,  Yoshiki Maruya ,  Megumi Satou

IPC分类号： C08L27/12

CPC分类号： C08L69/00 ,  C08L27/18 ,  C08L27/20 ,  C08L2666/04

摘要： A polymer composition of matter is disclosed which includes a thermoplastic polymer and a fluorine-containing polymer. The thermoplastic polymer is an amorphous non-fluorinated thermoplastic polymer or a crystalline non-fluorinated thermoplastic polymer with a melting point of 180° C. or higher. The fluorine-containing polymer has a zero shear viscosity at 340° C. of 0.2 Pa.s or greater and less than 5000 Pa.s, and is present to the extent of 0.005-2 mass % of the total of the thermoplastic polymer and the fluorine-containing polymer.

摘要翻译： 公开了一种包含热塑性聚合物和含氟聚合物的聚合物组合物。 热塑性聚合物是熔点为180℃或更高的无定形非氟化热塑性聚合物或结晶非氟化热塑性聚合物。 含氟聚合物在340℃下的零剪切粘度为0.2Pa·s以上且小于5000Pa·s，并且存在于热塑性聚合物总量的0.005-2质量％的程度， 含氟聚合物。

公开(公告)号：US06509429B1

公开(公告)日：2003-01-21

申请号：US09743188

申请日：2001-01-05

申请人： Masanori Kitaichi ,  Hiroshi Aihara ,  Sadashige Irie ,  Mitsuru Kishine ,  Yutaka Ueta ,  Katsuhide Otani ,  Yoshiki Maruya ,  Hideya Saito ,  Mitsuo Tsukamoto

发明人： Masanori Kitaichi ,  Hiroshi Aihara ,  Sadashige Irie ,  Mitsuru Kishine ,  Yutaka Ueta ,  Katsuhide Otani ,  Yoshiki Maruya ,  Hideya Saito ,  Mitsuo Tsukamoto

IPC分类号： C08F1418

CPC分类号： C08F14/26 ,  C08F14/18 ,  C08F14/28 ,  C08F259/08 ,  C08F2/16 ,  C08F2/22 ,  C08F214/18

摘要： A process for preparing a fluorine-containing polymer through emulsion polymerization method which enhances productivity while maintaining excellent physical properties of the fluorine-containing polymer and comprises (a) a first polymerization step for emulsion-polymerizing a fluorine-containing monomer or a mixture of a fluorine-containing monomer and a non-fluorine-containing monomer in an aqueous medium in the presence of a radical polymerization initiator and an emulsifying agent, (b) a dilution step for diluting the obtained aqueous emulsion of polymer particles with water to reduce the number of emulsified polymer particles per unit amount of aqueous medium in the emulsion and a concentration of emulsifying agent, and (c) a second polymerization step for emulsion-polymerizing a fluorine-containing monomer and/or a non-fluorine-containing monomer in the obtained diluted emulsified solution.

摘要翻译： 一种通过乳液聚合方法制备含氟聚合物的方法，其提高生产率同时保持含氟聚合物的优异物理性能，并且包括（a）第一聚合步骤，用于将含氟单体或 在自由基聚合引发剂和乳化剂的存在下，在水性介质中含氟单体和非含氟单体，（b）稀释步骤，用水稀释所得聚合物颗粒的水乳液以减少数量 乳液中的乳化聚合物粒子和乳化剂的浓度的乳化聚合物粒子，和（c）在所得到的乳液聚合物粒子中使含氟单体和/或非含氟单体乳化聚合的第二聚合步骤 稀释乳化液。

公开(公告)号：US06177532B1

公开(公告)日：2001-01-23

申请号：US09269306

申请日：1999-03-29

申请人： Katsuhide Otani ,  Yoshiki Maruya ,  Yoshiyuki Hiraga ,  Satoshi Komatsu

发明人： Katsuhide Otani ,  Yoshiki Maruya ,  Yoshiyuki Hiraga ,  Satoshi Komatsu

IPC分类号： C08F11418

CPC分类号： B01J19/26 ,  B01J3/008 ,  B01J19/18 ,  B01J19/2465 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00768 ,  B01J2219/182 ,  C08F14/18 ,  Y02P20/544 ,  C08F2/16

摘要： A polymerization process, in which when at least one of fluorine-containing olefin monomers in gaseous phase or supercritical phase or a monomer mixture of the fluorine-containing olefin monomer and other monomer copolymerizable therewith is subjected to batch polymerization in an aqueous medium while being diffused to the aqueous medium, a diffusing amount of the monomer or monomer mixture to the aqueous medium is not less than 80% of the theoretical consumption of the monomer or monomer mixture when polymerized at the theoretical polymerization rate. According to the present invention, a polymerization rate is determined by the polymerization reaction but not by the diffusion of monomer gas, and thus higher polymerization rate can be achieved.

摘要翻译： 聚合方法，其中当气相或超临界相中的至少一种含氟烯烃单体或含氟烯烃单体和可与其共聚的其它单体的单体混合物在水性介质中进行分批聚合同时被扩散 向水性介质中，单体或单体混合物向水介质的扩散量不小于在理论聚合速度下聚合时单体或单体混合物理论消耗量的80％。 根据本发明，通过聚合反应而不是通过单体气体的扩散来确定聚合速率，因此可以实现更高的聚合速率。