METHOD OF MAKING FLUORINATED ALKOXY CARBOXYLIC ACIDS AND PRECURSORS THEREOF
    21.
    发明申请
    METHOD OF MAKING FLUORINATED ALKOXY CARBOXYLIC ACIDS AND PRECURSORS THEREOF 有权
    制备氟化烷氧基羧酸及其前体的方法

    公开(公告)号:US20110245520A1

    公开(公告)日:2011-10-06

    申请号:US13133734

    申请日:2009-11-24

    IPC分类号: C07C247/04 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。

    METHOD OF MAKING FLUOROPOLYMER DISPERSION
    28.
    发明申请
    METHOD OF MAKING FLUOROPOLYMER DISPERSION 有权
    制备氟聚合物分散体的方法

    公开(公告)号:US20070015864A1

    公开(公告)日:2007-01-18

    申请号:US11420386

    申请日:2006-05-25

    IPC分类号: C08L27/12

    摘要: A method of making a fluoropolymer dispersion by first providing a fluoropolymer dispersion comprising fluoropolymer particles and one or more fluorinated surfactants selected from fluorinated carboxylic acids or salts thereof having the general formula: [Rf—O-L-COO−]iXi+  (I) wherein L represents a linear partially or fully fluorinated alkylene group or an aliphatic hydrocarbon group, Rf represents a linear partially or fully fluorinated aliphatic group or a linear partially or fully fluorinated aliphatic group interrupted with one or more oxygen atoms, Xi+ represents a cation having the valence i and i is 1, 2 or 3; Then adding one or more non-fluorinated surfactants selected from anionic and non-ionic surfactants followed by reducing the total amount of the one or more fluorinated surfactants to an amount of not more than 500 ppm, for example not more than 250 ppm based on the total weight of the dispersion while maintaining or increasing the amount of solids in the dispersion.

    摘要翻译: 首先提供含氟聚合物颗粒和一种或多种选自氟化羧酸或其盐的含氟表面活性剂的含氟聚合物分散体的制备氟聚合物分散体的方法,所述氟化聚合物分散体具有以下通式:<?in-line-formula description =“In-Line Formulas” (I)结束=“引导”→[R f> OL O> - ))))))))))))))))))))))))) <?in-line-formula description =“In-line formula”end =“tail”?>其中L表示线性部分或完全氟化的亚烷基或脂族烃基,R f表示 线性部分或全氟化的脂族基团或被一个或多个氧原子间隔的线性部分或完全氟化的脂肪族基团,表示i为i且i为1,2或3的阳离子; 然后加入一种或多种选自阴离子和非离子表面活性剂的非氟化表面活性剂,然后将一种或多种氟化表面活性剂的总量减少至不超过500ppm,例如不超过250ppm,基于 分散体的总重量,同时保持或增加分散体中固体的量。

    Aqueous Dispersions of Polytetrafluoroethylene Having a Low Amount of Fluorinated Surfactant
    29.
    发明申请
    Aqueous Dispersions of Polytetrafluoroethylene Having a Low Amount of Fluorinated Surfactant 有权
    具有少量氟化表面活性剂的聚四氟乙烯的水性分散体

    公开(公告)号:US20060128872A1

    公开(公告)日:2006-06-15

    申请号:US11275959

    申请日:2006-02-07

    IPC分类号: C08G18/62

    摘要: An aqueous non-melt processible polytetrafluoroethylene dispersion having non-melt processible polytetrafluoroethylene particles in an amount of 30 to 70% by weight and an amount of non-ionic surfactant between 2 and 15% by weight based on the weight of polytetrafluoroethylene solids. The dispersion is free of fluorinated surfactant or contains fluorinated surfactant in amounts of not more than 200 ppm based on the amount of polytetrafluoroethylene solids. At least part of the non-melt processible polytetrafluoroethylene particles comprise an effective amount of ionic end groups in the polytetrafluoroethylene polymer chains.

    摘要翻译: 一种水溶性可熔融加工的聚四氟乙烯分散体,其具有30至70重量%的非熔体加工的聚四氟乙烯颗粒和基于聚四氟乙烯固体重量的2至15重量%的非离子表面活性剂的量。 该分散体不含氟化表面活性剂,或含有基于聚四氟乙烯固体量不大于200ppm的含氟表面活性剂。 至少部分不可熔融加工的聚四氟乙烯颗粒在聚四氟乙烯聚合物链中包含有效量的离子端基。

    Fluoropolymer for making a fluoroelastomer
    30.
    发明申请
    Fluoropolymer for making a fluoroelastomer 审中-公开
    用于制造含氟弹性体的含氟聚合物

    公开(公告)号:US20060052557A1

    公开(公告)日:2006-03-09

    申请号:US11198991

    申请日:2005-08-08

    IPC分类号: C08F214/18

    CPC分类号: C08F214/18 C08F214/186

    摘要: In accordance with one aspect of the invention, there is provided (i) an amorphous fluoropolymer that has one or more cure site components, the cure site components being contained in the amorphous fluoropolymer in an amount between 0.1 and 0.5 mol % based on the total amount of repeating units and/or (ii) the amorphous fluoropolymer is capable of being dehydrofluorinated, wherein the amorphous fluoropolymer is derivable from a polymerization of (a) one or more gaseous fluorinated monomers and (b) not more than 0.5% by weight based on the total weight of monomers of one or more olefins having a bromine or iodine atom bonded to a carbon of the double bond of the olefin.

    摘要翻译: 根据本发明的一个方面,提供(i)具有一个或多个固化部位成分的无定形含氟聚合物,所述无定形含氟聚合物中的固化部位成分以基于总量的0.1至0.5mol% 重复单元的量和/或(ii)无定形含氟聚合物能够脱氟化氢,其中无定形含氟聚合物可衍生自(a)一种或多种气态氟化单体的聚合,和(b)不超过0.5重量% 关于具有与烯烃的双键结合的溴或碘原子的一种或多种烯烃的单体的总重量。