Method of making fluorinated alkoxy carboxylic acids and precursors thereof
    163.
    发明授权
    Method of making fluorinated alkoxy carboxylic acids and precursors thereof 有权
    氟化烷氧基羧酸及其前体的制备方法

    公开(公告)号:US08440858B2

    公开(公告)日:2013-05-14

    申请号:US13133734

    申请日:2009-11-24

    IPC分类号: C07C51/08

    摘要: A method for preparing saturated partially fluorinated alkoxy carboxylic acids or salts thereof by treating a compound: (II), where Rf represents a fluorinated, linear or branched alkyl residue interruptible by one or more oxygen atoms, n is 0 or 1, with a Z-anion in a reaction medium comprising water and an organic solvent, where the Z-anion is selected from CN—, SCN— and OCN— or combinations thereof. A method of making partially fluorinated ethers of the general formula (I) wherein Rf is defined as above, n is 0 or 1, and Z is nitrile (—CN), azide (—N3), thiocyanate (—SCN) or cyanate (—OCN) group, said method comprising treating a fluorinated olefin of the general formula (II) wherein the Z-anion is CN—, OCN—, SCN— or N3−. A compound of the general formula (I) as previously described where Z is selected from SCN, OCN and N3.

    摘要翻译: 通过处理化合物(II)制备饱和部分氟化的烷氧基羧酸或其盐的方法,其中Rf表示可被一个或多个氧原子中断的氟化的直链或支链烷基,n为0或1,Z为 阴离子在包含水和有机溶剂的反应介质中,其中Z-阴离子选自CN-,SCN-和OCN-或其组合。 制备通式(I)的部分氟化醚的方法,其中Rf定义如上,n为0或1,Z为腈(-CN),叠氮化物(-N 3),硫氰酸酯(-SCN)或氰酸酯 -OCN)基团,所述方法包括处理通式(II)的氟化烯烃,其中Z-阴离子是CN-,OCN-,SCN-或N 3 - 。 其中Z选自SCN,OCN和N 3,如前所述的通式(I)的化合物。

    METHODS OF PREPARING FLUORINATED CARBOXYLIC ACIDS AND THEIR SALTS
    164.
    发明申请
    METHODS OF PREPARING FLUORINATED CARBOXYLIC ACIDS AND THEIR SALTS 有权
    制备氟化羧酸及其盐的方法

    公开(公告)号:US20120184770A1

    公开(公告)日:2012-07-19

    申请号:US13497173

    申请日:2010-10-21

    摘要: A method for preparing fluorinated carboxylic acids and theirs salts is described comprising subjecting a fluorinated alcohol of the general formula (A): A-CH2—OH to at least one first and at least one second oxidizing agent to produce a highly fluorinated carboxylic acid or their salts of the general formula (B): A-COO M+, wherein M+ represents a cation and wherein A in formulas (A) and (B) is the same and A represents the residue: Rf-[0]p-CX″Y″-[0]m-CX′Y′-[0]n-CXY— wherein Rf represents a fluorinated alkyl residue which may or may not contain one or more catenary oxygen atoms, p, m and n are independently from each other either 1 or O, X, X′, X″, Y, Y′ and Y″ are independently from each other H, F, CF3, or C2F5 with the proviso that not all of X, X′, X″, Y, Y′ and Y″ are H; or A represents the residue: R—CFX— wherein X and R are independently selected from a hydrogen, a halogen, or an alkyl, alkenyl, cycloalkyl, or aryl residue, which may or may not contain one or more fluorine atoms and which may or may not contain one or more catenary oxygen atoms; wherein said at least one first oxidizing agent is a compound that can be converted, by action of the second oxidizing agent, into a reactive species capable of oxidizing the fluorinated alcohol.

    摘要翻译: 描述了制备氟化羧酸及其盐的方法,其包括将通式(A)的氟化醇:A-CH 2 -OH置于至少一种第一和至少一种第二氧化剂中以产生高度氟化的羧酸或 其通式(B)的盐:A-COO M +,其中M +表示阳离子,式(A)和(B)中的A相同,A表示残基:Rf- [0] p-CX“ Y“ - [0] m-CX'Y' - [0] n-CXY-其中Rf表示可以或可以不含有一个或多个链状氧原子的氟化烷基残基,p,m和n彼此独立地 1或O,X,X',X“,Y,Y'和Y”彼此独立地为H,F,CF 3或C 2 F 5,条件是不是全部X,X',X“,Y, Y'和Y“为H; 或A表示残基:R-CFX-,其中X和R独立地选自氢,卤素或烷基,烯基,环烷基或芳基残基,其可以含有或不含有一个或多个氟原子, 或者可以不包含一个或多个链状氧原子; 其中所述至少一种第一氧化剂是可以通过第二氧化剂的作用转化成能够氧化氟化醇的反应性物质的化合物。

    METHODS FOR MELT-PROCESSING THERMOPLASTIC FLUOROPOLYMERS
    167.
    发明申请
    METHODS FOR MELT-PROCESSING THERMOPLASTIC FLUOROPOLYMERS 审中-公开
    用于熔融加工热塑性氟聚合物的方法

    公开(公告)号:US20110040021A1

    公开(公告)日:2011-02-17

    申请号:US12667880

    申请日:2008-07-02

    IPC分类号: C08L27/12

    摘要: A method comprising melt-processing a first composition. The first composition comprises a first fluoropolymer having a relaxation exponent of from 0.93 to 1.0 and a second fluoropolymer having a relaxation exponent of from 0.30 to 0.92. A method comprising melt-processing a first composition, wherein the first composition comprises a first fluoropolymer having an LCBI of from 0 to 0.1 and a second fluoropolymer having an LCBI of at least 0.2. A method comprising melt-processing a first composition, wherein the first composition comprises a core-shell polymer having a first fluoropolymer portion and a second fluoropolymer portion. The extrusion products have a lower width homogeneity index value than observed in state of the art fluo-ropolymers.

    摘要翻译: 一种包括熔融加工第一组合物的方法。 第一组合物包含松弛指数为0.93至1.0的第一含氟聚合物和松弛指数为0.30至0.92的第二含氟聚合物。 一种包括熔融加工第一组合物的方法,其中所述第一组合物包含LCBI为0至0.1的第一含氟聚合物和LCBI为至少0.2的第二含氟聚合物。 一种包括熔融加工第一组合物的方法,其中所述第一组合物包含具有第一含氟聚合物部分和第二含氟聚合物部分的核 - 壳聚合物。 挤出产品具有比现有技术的氟聚合物中观察到的更低的宽度均匀性指数值。

    Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups
    169.
    发明授权
    Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups 有权
    从具有季铵基团的碱性阴离子交换树脂中回收氟化表面活性剂

    公开(公告)号:US07807726B2

    公开(公告)日:2010-10-05

    申请号:US11373430

    申请日:2006-03-10

    IPC分类号: C08J5/20

    摘要: The invention provides a method for recovery of a fluorinated anionic surfactant from a basic anion exchange resin having quaternary ammonium groups, the method comprising eluting the anion exchange resin with a composition comprising an ammonium salt and a water miscible organic solvent. The method according to the invention may provide one or more of the following advantages. For example, the method can be designed to allow for recovery of substantially all of the fluorinated surfactant from a basic anion exchange resin having quaternary ammonium groups. Also, the liquid used for recovering the surfactant from the anion exchange resin is a simple liquid that can be readily and cost effectively manufactured. Further the process may be carried out in a convenient and easy manner. Furthermore, the method generally does not require large amounts of the eluting composition.

    摘要翻译: 本发明提供了从具有季铵基团的碱性阴离子交换树脂中回收氟化阴离子表面活性剂的方法,该方法包括用包含铵盐和水混溶性有机溶剂的组合物洗脱阴离子交换树脂。 根据本发明的方法可以提供一个或多个以下优点。 例如,该方法可被设计成允许从具有季铵基团的碱性阴离子交换树脂中恢复基本上所有的氟化表面活性剂。 此外,用于从阴离子交换树脂中回收表面活性剂的液体是可以容易且成本有效地制造的简单液体。 此外,该方法可以以方便和容易的方式进行。 此外,该方法通常不需要大量的洗脱组合物。

    Aqueous emulsion polymerization of fluorinated monomers using a fluorinated surfactant
    170.
    发明授权
    Aqueous emulsion polymerization of fluorinated monomers using a fluorinated surfactant 有权
    使用氟化表面活性剂的氟化单体的水乳液聚合

    公开(公告)号:US07776946B2

    公开(公告)日:2010-08-17

    申请号:US11457502

    申请日:2006-07-14

    IPC分类号: C08K5/09

    CPC分类号: C08F14/18 C08F2/22

    摘要: 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) Rf—O—CF2CF2—X  (I) wherein Rf 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.

    摘要翻译: 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)Rf-O-CF 2 CF 2 -X(I),其中R 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。