METHOD OF MAKING A FLUOROPOLYMER
    3.
    发明申请
    METHOD OF MAKING A FLUOROPOLYMER 审中-公开
    制备荧光体的方法

    公开(公告)号:WO2007038561A1

    公开(公告)日:2007-04-05

    申请号:PCT/US2006/037590

    申请日:2006-09-26

    CPC classification number: C08F214/18 B01J41/05 C08F6/16

    Abstract: The present invention provides a method of making a fluoropolymer comprising: (i) providing an aqueous dispersion of fluoropolymer particles by polymerizing one or more fluorinated olefins and optionally one or more fluorinated or non-fluorinated comonomers in an aqueous emulsion polymerization whereby the polymerization is initiated in the absence of a fluorinated surfactant and whereby no fluorinated surfactant is added during polymerization; (ii) recovering the fluoropolymer from the aqueous dispersion thereby obtaining said fluoropolymer and waste water; and (iii) contacting said waste water with an anion exchange resin; or alternatively to steps (ii) and (iii), contacting said aqueous dispersion with an anion exchange resin and subsequently separating said anion exchange resin from said aqueous dispersion.

    Abstract translation: 本发明提供一种制备含氟聚合物的方法,其包括:(i)通过在水乳液聚合中聚合一种或多种氟化烯烃和任选的一种或多种氟化或非氟化共聚单体来提供含氟聚合物颗粒的水性分散体,由此引发聚合 在不存在氟化表面活性剂的情况下,在聚合过程中不加入氟化表面活性剂; (ii)从水分散体中回收含氟聚合物,从而得到所述含氟聚合物和废水; 和(iii)使所述废水与阴离子交换树脂接触; 或者选择步骤(ii)和(iii),使所述水性分散体与阴离子交换树脂接触,随后将所述阴离子交换树脂与所述水性分散体分离。

    AQUEOUS EMULSION POLYMERIZATION OF FLUORINATED MONOMERS USING A FLUORINATED SURFACTANT
    4.
    发明申请
    AQUEOUS EMULSION POLYMERIZATION OF FLUORINATED MONOMERS USING A FLUORINATED SURFACTANT 审中-公开
    使用氟化表面活性剂的氟化单体的水性乳液聚合

    公开(公告)号:WO2007011633A1

    公开(公告)日:2007-01-25

    申请号:PCT/US2006/027146

    申请日:2006-07-14

    CPC classification number: C08F14/18 C08F2/22

    Abstract: The present invention provides an aqueous emulsion polymerization of fluorinated monomers including gaseous fluorinated monomers using a perfluoro ether surfactant as an emulsifier. The perfluoro ether surfactants correspond to formula (I) R f -O-CF 2 CF 2 -X (I) wherein R f represents a linear or branched perfluoroalkyl group having 1, 2, 3 or 4 carbon atoms and X represents a carboxylic acid group or salt thereof. In a further aspect, the invention also provides an aqueous fluoropolymer dispersion comprising the perfluoro ether surfactant and the use of such dispersion in the coating or impregnation of substrates.

    Abstract translation: 本发明提供使用全氟醚表面活性剂作为乳化剂的氟化单体的水乳液聚合,包括气态氟化单体。 全氟醚表面活性剂对应于式(I)其中R 1,R 2,R 2,R 3, f表示具有1,2,3或4个碳原子的直链或支链全氟烷基,X表示羧酸基团或其盐。 另一方面,本发明还提供一种包含全氟醚表面活性剂的含氟聚合物水分散体和在底物的涂布或浸渍中使用这种分散体。

    AQUEOUS DISPERSIONS OF POLYTETRAFLUOROETHYLENE PARTICLES
    5.
    发明申请
    AQUEOUS DISPERSIONS OF POLYTETRAFLUOROETHYLENE PARTICLES 审中-公开
    聚四氟乙烯颗粒的水分散

    公开(公告)号:WO2005040239A2

    公开(公告)日:2005-05-06

    申请号:PCT/US2004/032583

    申请日:2004-10-04

    CPC classification number: C09D127/18 C08L2666/28

    Abstract: The present invention provides an aqueous non-melt processible polytetrafluoroethylene dispersion comprising non-melt processible polytetrafluoroethylene particles in an amount between 30 and 70% by weight based on the total weight of the dispersion and one or more non-ionic surfactants and wherein at least a part of said non-melt processible polytetrafluoroethylene particles comprise polytetrafluoroethylene polymer chains having repeating units comprising ionic groups. The invention further provides a method for obtaining the dispersions.

    Abstract translation: 本发明提供了一种含水不可熔融加工的聚四氟乙烯分散体,其包含基于分散体和一种或多种非离子表面活性剂的总重量为30-70重量%的不可熔融加工的聚四氟乙烯颗粒,并且其中至少一个 所述不可熔融加工的聚四氟乙烯颗粒的一部分包括具有包含离子基团的重复单元的聚四氟乙烯聚合物链。 本发明还提供了获得分散体的方法。

    MELT-PROCESSIBLE THERMOPLASTIC FLUOROPOLYMERS HAVING IMPROVED PROCESSING CHARACTERISTICS AND METHOD OF PRODUCING SAME
    6.
    发明申请
    MELT-PROCESSIBLE THERMOPLASTIC FLUOROPOLYMERS HAVING IMPROVED PROCESSING CHARACTERISTICS AND METHOD OF PRODUCING SAME 审中-公开
    具有改进的加工特性的熔融 - 可过程的热塑性氟聚合物及其生产方法

    公开(公告)号:WO2004094491A1

    公开(公告)日:2004-11-04

    申请号:PCT/US2004/003459

    申请日:2004-02-06

    CPC classification number: H01B3/445 C08F214/18 C09D127/12

    Abstract: The present invention provides a fluoropolymer that is melt-processible and thermoplastic and that has a melting point between 100 °C and 320 °C. The fluoropolymer is derived from (a) one or more gaseous fluorinated monomers, (b) one or more modifiers selected from (i) olefins having a bromine or iodine atom bonded to a carbon of the double bond of the olefin, (ii) olefins corresponding to formula (I): X a 2 C = CX a -R f -Br wherein each X a independently represents hydrogen, fluorine, bromine, chlorine or iodine, R f is a perfluoroalkylene group, typically having 1 to 8 carbon atoms, a perfluorooxyalkylene group or a perfluoropolyether group and (iii) mixtures thereof; and (c) optionally one or more comonomers selected from non-gaseous fluorinated monomers and non-fluorinated monomers. The resulting fluoropolymer has long chain branches. The invention further provides a method for making these polymers.

    Abstract translation: 本发明提供一种熔体加工性和热塑性的含氟聚合物,其熔点在100℃至320℃之间。 含氟聚合物衍生自(a)一种或多种气态氟化单体,(b)一种或多种选自(i)具有与烯烃双键的碳键合的溴或碘原子的烯烃的改性剂,(ii)烯烃 对应于式(I):X <= 2C = CX a -Rf-Br其中每个X a独立地表示氢,氟,溴,氯或碘,Rf是全氟亚烷基,通常具有1至8个 碳原子,全氟代亚烷基或全氟聚醚基团和(iii)它们的混合物; 和(c)任选的一种或多种选自非气态氟化单体和非氟化单体的共聚单体。 得到的含氟聚合物具有长链分支。 本发明还提供了制备这些聚合物的方法。

    COMPOSITION INCLUDING AMORPHOUS FLUOROPOLYMER AND FLUOROPLASTIC PARTICLES AND METHODS OF MAKING THE SAME
    7.
    发明申请
    COMPOSITION INCLUDING AMORPHOUS FLUOROPOLYMER AND FLUOROPLASTIC PARTICLES AND METHODS OF MAKING THE SAME 审中-公开
    包含非晶态含氟聚合物和含氟颗粒的组合物及其制备方法

    公开(公告)号:WO2017070172A1

    公开(公告)日:2017-04-27

    申请号:PCT/US2016/057647

    申请日:2016-10-19

    Abstract: A composition includes an amorphous fluoropolymer having at least one of: a segment represented by formula I: -CF(R f )-(CX 2 ) n -(CX 2 CXR) m -O-R" f O k -(CXR'CX 2 ) p -(CX 2 ) q -CF(R' f )- (I); or a terminal segment represented by formula III: R f -CF(I)- (CX 2 ) n -(CX 2 CXR) m -O-R" f O k -(CXR'CX 2 ) p -(CX 2 ) q -CF(R' f )- (III), and fluoroplastic particles having a mean particle size of less than 500 nanometers. Each X is independently F, H, or Cl; R f and R' f are each independently F or a monovalent perfluoroalkyl having 1 to 3 carbon atoms; R is F or a partially fluorinated or perfluorinated alkyl having 1 to 3 carbon atoms; R" f is a divalent fluoroalkylene having 1 to 8 carbon atoms or a divalent fluorinated alkylene ether having 1 to 20 carbon atoms and at least one ether linkage; k is 0 or 1; and n, m, p, and q are each independently an integer from 0 to 5, with the proviso that when k is 0, n + m is at least 1 and p + q is at least 1. A method of making the composition is also provided.

    Abstract translation: 组合物包含无定形含氟聚合物,其具有以下至少一种:由式I表示的链段:-CF(R f) - (CX 2 2) >)<子>名词 - (CX <子> 2 CXR)<子>米 -O-R&QUOT; <子>˚F 0 <子>ķ< /子> - (CXR'CX <子> 2 )<子> p - (CX <子> 2 )<子> q -CF(R” (I); 或由式III表示的末端片段:R ff -C(I) - (CX 2n)n - (CXr 2) CXR)<子>米 -O-R&QUOT; <子>˚F 0 <子>ķ - (CXR'CX <子> 2 ) (CX 2)q -FF(R') - (III)和氟塑料颗粒 具有小于500纳米的平均粒度。 每个X独立地是F,H或Cl; R f和R f各自独立地为F或具有1至3个碳原子的单价全氟烷基; R是F或具有1至3个碳原子的部分氟化或全氟化烷基; R“是具有1至8个碳原子的二价氟代亚烷基或具有1至20个碳原子和至少一个醚键的二价氟代亚烷基醚; k是0或1; 并且n,m,p和q各自独立地为0至5的整数,条件是当k为0时,n + m至少为1且p + q至少为1.制备组合物的方法 也提供。

    AQUEOUS EMULSION POLYMERIZATION OF FLUORINATED MONOMERS IN THE PRESENCE OF A PARTIALLY FLUORINATED OLIGOMER AS AN EMULSIFIER
    9.
    发明申请
    AQUEOUS EMULSION POLYMERIZATION OF FLUORINATED MONOMERS IN THE PRESENCE OF A PARTIALLY FLUORINATED OLIGOMER AS AN EMULSIFIER 审中-公开
    作为乳化剂的部分氟化低聚物存在下氟化单体的水性乳液聚合

    公开(公告)号:WO2006135825A1

    公开(公告)日:2006-12-21

    申请号:PCT/US2006/022650

    申请日:2006-06-09

    Abstract: The present invention relates to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of an oligomer that comprises one or more ionic groups, has a partially fluorinated backbone, a number average molecular weight of not more than 2000 g/mol and that has a combination of repeating units different from that of the fluoropolymer that is being produced by the polymerization of said one or more fluorinated monomers. Since the polymerization of the one or more fluorinated monomers to produce the desired fluoropolymer is carried out in the presence of the oligomer, the resulting dispersion will contain the oligomer in addition to the fluoropolymer. Thus, in a further aspect, the invention relates to an aqueous dispersion of a fluoropolymer comprising the oligomer.

    Abstract translation: 本发明涉及一种制备含氟聚合物的方法,其包含一种或多种氟化单体的水乳液聚合,其中所述水性乳液聚合在包含一个或多个离子基团的低聚物存在下进行,具有部分氟化的主链, 数均分子量不大于2000g / mol,并且具有与通过所述一种或多种氟化单体的聚合产生的含氟聚合物的重复单元的重复单元的组合。 由于一种或多种氟化单体的聚合以产生所需的含氟聚合物是在低聚物存在下进行的,除了含氟聚合物之外,所得到的分散体还含有低聚物。 因此,在另一方面,本发明涉及含有低聚物的含氟聚合物的水分散体。

Patent Agency Ranking