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377 条记录 (耗时 0.017 秒)

    Aqueous dispersion, composite powder and organosol of fluorine-containing polymer
    42.
    发明授权
    Aqueous dispersion, composite powder and organosol of fluorine-containing polymer 失效
    含水聚合物的水分散体，复合粉末和有机溶胶

    公开(公告)号：US5164426A

    公开(公告)日：1992-11-17

    申请号：US709155

    申请日：1991-06-03

    申请人： Tetsuo Shimizu ,  Seitaro Yamaguchi

    发明人： Tetsuo Shimizu ,  Seitaro Yamaguchi

    IPC分类号： C08F259/08 ,  C08L51/06

    CPC分类号： C08F259/08 ,  C08L51/06 ,  Y10S525/902

    摘要： An aqueous dispersion comprising composite colloidal particles having an average particle size of 0.05 to 1.0 micrometer each of which comprises a core made of a copolymer comprising 99-100% by weight of tetrafluoroethylene and 0 to 1% by weight of a fluorine-containing olefin which is copolymerizable with tetrafluoroethylene and a shell made of a polymer having a glass transition temperature of at least 50.degree. C. which comprises(a) 60 to 100% by mole of at least one .alpha.-substituted acrylate of the formula:CH.sub.2 .dbd.CXCOOR.sub.f (I) wherein X is a methyl group, a fluorine atom or a trifluoromethyl group, and R.sub.f is a fluoroalkyl group or a fluoro(alkoxyalkyl) group and(b) 0 to 40% by mole of at least one monomer copolymerizable with said acrylate (I), from which composite fluorine-containing polymer particles having good redispersibility in a liquid medium and improved blending properties with other resins or elastomers are prepared and from which an organosol of the composite fluorine-containing polymer particles is formed.

    摘要翻译： 一种水分散体，其包含平均粒度为0.05-1.0微米的复合胶体颗粒，每一个包含由包含99-100重量％四氟乙烯和0-1重量％含氟烯烃的共聚物制成的芯， 可与四氟乙烯和由玻璃化转变温度至少为50℃的聚合物制成的壳共聚，该壳包含（a）60至100摩尔％的至少一种下式的分子式：CH2 = CXCOORf的α-取代的丙烯酸酯 I）其中X为甲基，氟原子或三氟甲基，Rf为氟烷基或氟（烷氧基烷基）基团，（b）0〜40摩尔％的至少一种可与所述丙烯酸酯共聚的单体 I），其中在液体介质中具有良好的再分散性的复合含氟聚合物颗粒和与其它树脂或弹性体的改进的共混性能被制备，并且从其中复合含氟混合物的有机溶胶 形成聚合物颗粒。

    Stratified fibrous fluoropolymer compositions and process for forming such fluoropolymers
    45.
    发明授权
    Stratified fibrous fluoropolymer compositions and process for forming such fluoropolymers 失效
    分层纤维状含氟聚合物组合物和形成这种含氟聚合物的方法

    公开(公告)号：US4859745A

    公开(公告)日：1989-08-22

    申请号：US136690

    申请日：1987-12-22

    申请人： William P. Carl ,  Emmett L. Tasset ,  Robert E. Aikman, Jr.

    发明人： William P. Carl ,  Emmett L. Tasset ,  Robert E. Aikman, Jr.

    IPC分类号： C08F259/08

    CPC分类号： C08F259/08 ,  Y10S525/902

    摘要： The invention is a process for producing a modified polytetrafluoroethylene which comprises polymerizing tetrafluoroethylene in an aqueous medium containing a dispersing agent with a polymerization initiator source and then, copolymerizing tetrafluoroethylene one or more fluorinated modifiers having an acid functional group or a functional group which is convertible to the acid group as a copolymerizable modifier in the presence of the resulting polytetrafluoroethylene to a polymerization point past the Kraft point to produce highly porous, fibrous, stratified fluoropolymers having cores made of homopolymer of poly-tetrafluoroethylene coated with sheath layers which are made of a copolymer of polytetrafluoroethylene and one or more modifiers.The invention also includes a highly porous, fibrous, stratified fluoropolymer having a plurality of interconnected, fibrous-like projections wherein the stratified fluoropolymer has a core layer of polytetrafluoroethylene substantially completely covered by a copolymer of polytetrafluoroethylene and a fluorocarbon modifier.

    摘要翻译： 本发明是一种改性聚四氟乙烯的制造方法，其特征在于，在含有聚合引发剂源的分散剂的水性介质中聚合四氟乙烯，然后使四氟乙烯与一种或多种具有酸官能团或官能团的氟化改性剂共聚， 该酸基团作为可共聚改性剂，在所得聚四氟乙烯存在下，聚合点经过牛皮纸点，以产生具有由涂覆有鞘层的聚四氟乙烯均聚物制成的芯的高度多孔，纤维状分层的含氟聚合物， 的聚四氟乙烯和一种或多种改性剂。 本发明还包括具有多个相互连接的纤维状突起的高度多孔，纤维状分层的氟聚合物，其中分层含氟聚合物具有基本上被聚四氟乙烯和氟碳改性剂的共聚物完全覆盖的聚四氟乙烯核心层。

    Aqueous dispersion of particles of a fluorine-containing-copolymer and its use
    47.
    发明授权
    Aqueous dispersion of particles of a fluorine-containing-copolymer and its use 失效
    含氟共聚物颗粒的水分散体及其用途

    公开(公告)号：US4780490A

    公开(公告)日：1988-10-25

    申请号：US927378

    申请日：1986-11-06

    申请人： Toshio Mizuno ,  Norimasa Honda ,  Shoji Kawachi ,  Tetsuo Shimizu ,  Masafumi Akamatsu

    发明人： Toshio Mizuno ,  Norimasa Honda ,  Shoji Kawachi ,  Tetsuo Shimizu ,  Masafumi Akamatsu

    IPC分类号： C08L27/12 ,  C08F259/08 ,  C08L27/18 ,  C08L51/00 ,  C08L57/00 ,  C09D127/12 ,  C08L83/00

    CPC分类号： C08F259/08 ,  Y10S525/902

    摘要： An aqueous dispersion comprising an aqueous medium and colloidal particles of a fluorine-containing copolymer having an average particle size of about 0.05 to 1.0 um dispersed therein, each colloidal particle being constructed with a core portion made of a polymer comprising about 99 to 100% by weight of units of tetrafluoroethylene and about 0 to 1% by weight of units of at least one other fluoroolefin and a shell portion made of a polymer comprising about 50 to 97% by weight of units of tetrafluoroethylene and about 3 to 50% by weight of units of chlorotrifluoroethylene, the amount of chlorotrifluoroethylene in the core and shell portions being from about 2.5 to 25% by weight based on the entire amount of the core and shell portions.

    摘要翻译： 包含水性介质的水性分散体和平均粒径为约0.05〜1.0μm的含氟共聚物的胶体粒子分散在其中，每个胶体粒子由含有约99〜100％ 四氟乙烯单元的重量和约0至1重量％的至少一种其它氟代烯烃的单元和由聚合物制成的壳体部分，所述聚合物包含约50至97重量％的四氟乙烯单元和约3至50重量％ 基于三氟氯乙烯的单位，核和壳部分中的三氟氯乙烯的量为基于芯和壳部分的总量的约2.5至25重量％。

    Glass fiber reinforced flexible composite material using soft fluororesin
    48.
    发明授权
    Glass fiber reinforced flexible composite material using soft fluororesin 失效
    使用软氟树脂的玻璃纤维增​​强柔性复合材料

    公开(公告)号：US4749610A

    公开(公告)日：1988-06-07

    申请号：US015069

    申请日：1987-02-17

    申请人： Seiichi Katsuragawa ,  Chikashi Kawashima ,  Tomio Masaki

    发明人： Seiichi Katsuragawa ,  Chikashi Kawashima ,  Tomio Masaki

    IPC分类号： B32B27/30 ,  B32B17/04 ,  C08F4/36 ,  C08F259/08 ,  C08J5/04 ,  C08J5/08 ,  C08K7/14 ,  B32B27/04

    CPC分类号： C08J5/04 ,  C08F259/08 ,  C08J5/043 ,  C08K7/14 ,  C08J2327/16 ,  Y10T428/3154 ,  Y10T428/31544 ,  Y10T442/365

    摘要： A glass fiber reinforced flexible composite material is obtained by dispersing or embedding glass fiber in a fluororesin, which is a graft copolymer obtained by grafting a crystalline fluoro-polymer to an elastomeric fluoro-polymer. For example, the graft copolymer is obtained by graft polymerization of vinylidene fluoride with an elastomeric copolymer of vinylidene fluoride, chlorotrifluoroethylene and an unsaturated peroxy compound. The composite material possesses the physical and chemical properties characteristic of fluororesins and is flexible and easily melt processable. Sheets of this composite material using a glass fiber cloth have a soft feel and can easily be joined by high-frequency welding.

    摘要翻译： 通过将玻璃纤维分散或嵌入氟树脂中获得玻璃纤维增​​强的柔性复合材料，该氟树脂是通过将结晶氟聚合物接枝到弹性体氟聚合物上获得的接枝共聚物。 例如，接枝共聚物通过偏二氟乙烯与偏二氟乙烯，氯三氟乙烯和不饱和过氧化合物的弹性体共聚物的接枝聚合而获得。 复合材料具有氟树脂的物理化学特性，具有弹性，易熔融加工性能。 使用玻璃纤维布的复合材料的片材具有柔软的手感，并且可以通过高频焊接容易地接合。

    Method for producing graft-copolymers of vinyl chloride and polyfluorine resin by copolymerization
    50.
    发明授权
    Method for producing graft-copolymers of vinyl chloride and polyfluorine resin by copolymerization 失效
    通过共聚制备氯乙烯和多氟树脂的接枝共聚物的方法

    公开(公告)号：US4574141A

    公开(公告)日：1986-03-04

    申请号：US621103

    申请日：1984-06-15

    申请人： Cheng-Yi Cheng ,  Shou-Yuan Lee ,  Kwang-Ming Chen ,  Chee-Yuan Wo

    发明人： Cheng-Yi Cheng ,  Shou-Yuan Lee ,  Kwang-Ming Chen ,  Chee-Yuan Wo

    IPC分类号： C08F259/08

    CPC分类号： C08F259/08

    摘要： This invention relates to a method for graft-copolymerizing vinyl chloride monomer to a polyfluorine resin to produce resins of improved physical properties and processability parameters. The vinyl chloride monomer and polyfluorine resin are first treated in a highly alkaline medium and at a high temperature, and the mixture is stirred. Suspension agent(s), water and an initiator are added to the mixture after the temperature thereof has been lowered. The resultant mixture which has been stirred and homogenized is heated to a temperature at which polymerization is completed. Thereafter the mixture is neutralized, washed, and dried. A product having improved impact strength and resistance to heat and abrasion results.

    摘要翻译： 本发明涉及一种将氯乙烯单体接枝共聚到多氟树脂上以制备具有改进的物理性能和加工性参数的树脂的方法。 首先在高碱性介质中和高温下处理氯乙烯单体和多氟树脂，并搅拌该混合物。 在其温度降低之后，将悬浮剂，水和引发剂加入到混合物中。 将所得到的搅拌均化后的混合物加热到聚合完成的温度。 然后将混合物中和，洗涤和干燥。 具有改善冲击强度和耐热磨损性能的产品。