AQUEOUS DISPERSION OF LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE POWDER, AND METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE
    21.
    发明申请
    AQUEOUS DISPERSION OF LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE POWDER, AND METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE 审中-公开
    低分子量聚偏氟乙烯,低分子量聚四氟乙烯粉末的水分散体,以及生产低分子量聚偏二氟乙烯的方法

    公开(公告)号:US20100204345A1

    公开(公告)日:2010-08-12

    申请号:US12670995

    申请日:2008-08-07

    摘要: The present invention provides an aqueous dispersion of a low-molecular-weight polytetrafluoroethylene (PTFE), which contains an easily removable surfactant, and has a good dispersion stability. Specifically, the present invention provides an aqueous dispersion of a low-molecular-weight PTFE comprising tetrafluoroethylene (TFE) units, or TFE units and modifying monomer units which are copolymerizable with the TFE units, wherein the aqueous dispersion contains from 70 to 9,000 ppm, based on the aqueous dispersion, of a fluorine-containing compound of the formula (1) below: X—(CF2)m—Y  (1) where X is H or F; m is an integer from 3 to 5; and Y is —SO3M, —SO4M, —SO3R, —SO4R, —COOM, —PO3M2 or —PO4M2, M being H, NH4 or an alkali metal, and R being an alkyl group having 1 to 12 carbons, and the low-molecular-weight PTFE has an average primary particle size of from 100 to 350 nm.

    摘要翻译: 本发明提供一种低分子量聚四氟乙烯(PTFE)的水分散体,其含有易于除去的表面活性剂,并且具有良好的分散稳定性。 具体地说,本发明提供了包含四氟乙烯(TFE)单元或TFE单元的低分子量PTFE的水性分散体和可与TFE单元共聚的改性单体单元,其中,水分散体含有70〜9000ppm, 基于水分散体的下式(1)的含氟化合物:X-(CF 2)m -Y(1)其中X是H或F; m为3〜5的整数; Y是-SO 3 M,-SO 4 M,-SO 3 R,-SO 4 R,-COOM,-PO 3 M 2或-PO 4 M 2,M是H,NH 4或碱金属,R是具有1至12个碳原子的烷基, 分子量的PTFE的平均一次粒径为100〜350nm。

    Process for producing aqueous fluoropolymer dispension and aqueous fluoropolymer dispersion
    22.
    发明授权
    Process for producing aqueous fluoropolymer dispension and aqueous fluoropolymer dispersion 有权
    生产含氟聚合物含水量和含氟聚合物含水分散体的方法

    公开(公告)号:US07714047B2

    公开(公告)日:2010-05-11

    申请号:US12476172

    申请日:2009-06-01

    IPC分类号: C08K5/41

    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。

    FLUOROETHERCARBOXYLIC ACID AND PRODUCTION METHOD THEREOF, SURFACTANT, METHOD OF PRODUCING FLUOROPOLYMER AND AQUEOUS DISPERSION USED THEREOF
    23.
    发明申请
    FLUOROETHERCARBOXYLIC ACID AND PRODUCTION METHOD THEREOF, SURFACTANT, METHOD OF PRODUCING FLUOROPOLYMER AND AQUEOUS DISPERSION USED THEREOF 有权
    氟代羧酸及其生产方法,表面活性剂,生产氟聚合物的方法及其使用的水性分散体

    公开(公告)号:US20090176942A1

    公开(公告)日:2009-07-09

    申请号:US12348025

    申请日:2009-01-02

    摘要: The invention provides a fluoroethercarboxylic acid which is represented by the general formula (I): Rf1OCHFCF2ORf2COOM   (I) wherein Rf1 represents a partially or fully fluorinated alkyl group, which may optionally be interrupted with one or more oxygen atoms, Rf2 represents a partially or fully fluorinated alkylene group, which may optionally be interrupted with one or more oxygen atoms, and M represents a monovalent alkali metal, NH4 or H. The fluoroethercarboxylic acid can be suitably used as a surfactant and is low in bioaccumulation. The invention is also a method of fluoropolymer production and an aqueous fluoropolymer dispersion, using the fluoroethercarboxylic acid as a surfactant.

    摘要翻译: 本发明提供由通式(I)表示的氟代醚羧酸:<?in-line-formula description =“In-line formula”end =“lead”?> Rf1OCHFCF2ORf2COOM(I)<βin-line-formula 描述=“内联式”末端=“尾”→其中Rf1表示部分或完全氟化的烷基,其可任选地被一个或多个氧原子间隔,Rf 2表示部分或完全氟化的亚烷基,其可以 任选地被一个或多个氧原子中断,并且M表示一价碱金属NH 4或H.氟代醚羧酸可以适当地用作表面活性剂,并且生物蓄积低。 本发明也是使用氟代醚羧酸作为表面活性剂的氟聚合物生产方法和含氟聚合物水分散体。

    PROCESS FOR PRODUCING AQUEOUS FLUOROPOLYMER DISPERSION
    24.
    发明申请
    PROCESS FOR PRODUCING AQUEOUS FLUOROPOLYMER DISPERSION 审中-公开
    生产水性氟聚合物分散体的方法

    公开(公告)号:US20090069492A1

    公开(公告)日:2009-03-12

    申请号:US11911174

    申请日:2006-04-13

    IPC分类号: B01D53/56

    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)。

    Method For Producing Fluorine-Containing Elastomer Polymer
    25.
    发明申请
    Method For Producing Fluorine-Containing Elastomer Polymer 审中-公开
    生产含氟弹性体聚合物的方法

    公开(公告)号:US20080114118A1

    公开(公告)日:2008-05-15

    申请号:US11547637

    申请日:2005-04-05

    IPC分类号: C08L27/12 C08F16/24

    CPC分类号: C08F14/18 C08F2/16

    摘要: Disclosed is a method for producing a fluorine-containing elastomer polymer which is excellent in productivity and crosslinkability. Specifically disclosed is a method for producing a fluorine-containing elastomer polymer wherein a fluorine-containing monomer is polymerized in an aqueous solvent in the presence of an emulsifying agent containing a fluorine-containing vinyl group and a chain transfer agent. This method for producing a fluorine-containing elastomer polymer is characterized in that the emulsifying agent containing a fluorine-containing vinyl group is composed of a compound having a radically polymerizable unsaturated bond and a hydrophilic group in a molecule.

    摘要翻译: 公开了一种生产性和交联性优异的含氟弹性体聚合物的制造方法。 具体公开了一种含氟弹性体聚合物的制造方法,其中含氟单体在含有含氟乙烯基和链转移剂的乳化剂存在下,在含水溶剂中聚合。 该含氟弹性体聚合物的制造方法的特征在于,含有含氟乙烯基的乳化剂由分子内具有自由基聚合性不饱和键和亲水性基团的化合物构成。

    Fluoroalkyl carboxylic acid derivative, method for producing fluorine-containing polymer, and aqueous dispersion of fluorine-containing polymer
    26.
    发明申请
    Fluoroalkyl carboxylic acid derivative, method for producing fluorine-containing polymer, and aqueous dispersion of fluorine-containing polymer 有权
    氟烷基羧酸衍生物,含氟聚合物的制造方法和含氟聚合物的水分散体

    公开(公告)号:US20060281946A1

    公开(公告)日:2006-12-14

    申请号:US10562730

    申请日:2004-07-02

    IPC分类号: C07C59/135

    CPC分类号: C08F14/18 C08F2/16

    摘要: This invention provides a novel compound which can be properly used as a surfactant, a method of producing a fluoropolymer, surfactant and a fluoropolymer aqueous dispersions using the novel compound. This invention is a fluoroalkylcarboxylic acid derivative which is represented by the general formula (i): Rf1(OCH2CF2CF2)n1OCX1X2CF2(Rf2)n2COOM   (i) wherein Rf1 represents a straight or branched fluoroalkyl group containing 1 to 20 carbon atoms, which fluoroalkyl group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, Rf2 represents a straight or branched fluoroalkylene group containing 1 to 25 carbon atoms, said fluoroalkylene group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, n1 represents an integer of 0 to 3, n2 represents an integer of 0 or 1, X1 and X2 are the same or different and each represents hydrogen atom or fluorine atom, and M represents NH4 or a monovalent metal element.

    摘要翻译: 本发明提供了可以适当地用作表面活性剂的新型化合物,使用该新化合物的含氟聚合物,表面活性剂和含氟聚合物水分散体的制造方法。 本发明是由通式(i)表示的氟代烷基羧酸衍生物:<?in-line-formula description =“In-line formula”end =“lead”?> Rf < OCH 2 2 CF 2 2 CF 2)n 1 OCX 1 X 2 CF 2(Rf 2)N 2 COOM(i)<?in-line-formula description =“In-Line Formulas “end =”tail“?>其中Rf 1表示含有1至20个碳原子的直链或支链氟烷基,该氟烷基可以任选地在其主链中含有1至5个氧原子,Rf 代表含有1至25个碳原子的直链或支链氟代亚烷基,所述氟亚烷基可以任选地在其主链中含有1至5个氧原子,n1表示0-3的整数,n2表示 0或1的整数,X 1和X 2相同或不同,各自表示氢原子或氟原子,M表示NH 4 或一价金属元素。

    Vinylidene fluoride copolymer resin film
    27.
    发明授权
    Vinylidene fluoride copolymer resin film 有权
    偏二氟乙烯共聚物树脂膜

    公开(公告)号:US07147922B2

    公开(公告)日:2006-12-12

    申请号:US10895945

    申请日:2004-07-22

    IPC分类号: B32B27/30 C08L27/16

    摘要: There are provided a resin film being excellent in blocking resistance, scratch resistance, transparency, water resistance and chemical resistance and a member having the resin film as an outermost layer. The resin film comprises a vinylidene fluoride (VdF) copolymer and an acrylic polymer as essential components, in which a heat of fusion of crystal derived from the VdF copolymer in the resin film is from 15 to 30 J/g when measured with a differential scanning calorimeter (DSC), and light transmittance (light transmittance at 600 nm of 50 μm thick resin film) is not less than 85%. The member has the resin film as an outermost layer.

    摘要翻译: 提供了耐粘连性,耐擦伤性,透明性,耐水性和耐化学性优异的树脂膜和具有树脂膜作为最外层的部件。 树脂膜包括偏二氟乙烯(VdF)共聚物和作为必要成分的丙烯酸类聚合物,当用差示扫描测量时,树脂膜中衍生自VdF共聚物的结晶的熔化热为15〜30J / g 热量计(DSC)和光透射率(50μm厚的树脂膜的600nm的透光率)不小于85%。 该构件具有作为最外层的树脂膜。