Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions
    61.
    发明授权
    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions 失效
    用于降低含氟聚合物水分散体中氟化表面活性剂的量的方法

    公开(公告)号:US06825250B2

    公开(公告)日:2004-11-30

    申请号:US10429387

    申请日:2003-05-05

    IPC分类号: C08L100

    CPC分类号: C08F6/16 C08F6/20 C08L27/12

    摘要: The present invention provides a process of reducing the amount of fluorinated emulsifier in an aqueous fluoropolymer dispersion by contacting the aqueous fluoropolymer dispersion with an anion exchange resin in a non-fixed resin bed, the process comprising: (a) mixing the aqueous fluoropolymer dispersion with an effective amount of a surfactant so as to stabilize the fluoropolymer dispersion while being contacted with the anion exchange resin; (b) contacting the aqueous fluoropolyrner dispersion with an anion exchange resin by agitating the aqueous fluoropolymer dispersion with an effective amount of anion exchange resin for a time of less than 4 hours to reduce the amount of fluorinated emulsifier in the aqueous fluoropolymer dispersion to a desired level; and (c) separating the anion exchange resin from the aqueous fluoropolymer dispersion.

    摘要翻译: 本发明提供一种通过使含氟聚合物含水分散体与阴离子交换树脂在非固定树脂床中接触来降低含氟聚合物水分散体含量的方法,该方法包括:(a)将含氟聚合物水分散体与 有效量的表面活性剂,以便在与阴离子交换树脂接触的同时稳定含氟聚合物分散体;(b)通过用有效量的阴离子交换树脂搅拌含氟聚合物水分散体使其与阴离子交换树脂接触, 少于4小时的时间将含氟聚合物水分散体中的氟化乳化剂的量减少到所需水平; 和(c)从含氟聚合物含水分散体中分离阴离子交换树脂。

    Fluoropolymers having pendant imidate structures
    62.
    发明授权
    Fluoropolymers having pendant imidate structures 失效
    含有亚氨酸酯侧链结构的含氟聚合物

    公开(公告)号:US06803425B2

    公开(公告)日:2004-10-12

    申请号:US10122487

    申请日:2002-04-11

    IPC分类号: C08F814

    摘要: A composition comprising (a) a fluoropolymer having pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C1-C10 aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) a perfluorovinyl ether of the general formula: CF2═CFO(R′fO)a(R″fO)bRf wherein R′f and R″f are the same or are different C1-C6 linear or branched perfluoroalkylene groups; a and b are, independently, 0 or an integer from 1 to 10; and Rf is a C1-C8 perfluoroalkyl group or a C1-C15 perfluoroalkoxy group. Also provided are a method of making a fluoropolymer composition and curable and cured articles comprising a fluoropolymer composition.

    摘要翻译: 一种组合物,其包含(a)具有亚酰氨基侧基的含氟聚合物,所述亚胺基具有下式:-C = NH(OR),其中R是C1-C10脂族基团,该脂族基团可以具有F或Cl取代基; 和(b)通式CF 2 = CFO(R'fO)a(R“f O)b R f的全氟乙烯基醚,其中R'f和R''f相同或不同,C1-C6直链或 支链全氟亚烷基; a和b独立地为0或1〜10的整数; Rf为C1-C8全氟烷基或C1-C15全氟烷氧基。 还提供了制备包含含氟聚合物组合物的含氟聚合物组合物和可固化和固化的制品的方法。

    Process of preparing halogenated esters
    63.
    发明授权
    Process of preparing halogenated esters 失效
    制备卤代酯的方法

    公开(公告)号:US06703520B2

    公开(公告)日:2004-03-09

    申请号:US10117241

    申请日:2002-04-05

    IPC分类号: C07C20500

    摘要: The present invention provides a process for preparing a desired halogenated ester, which process comprises the steps of: (a) contacting (A) a substantially organic solvent free liquid mixture of (i) an alkanolate of the formula M—O—Z, wherein M is an alkali or alkaline earth metal, and Z is a linear, branched or cyclic alkyl group of 1 to 10 carbon atoms and (ii) a diester with (B) a halogenated ethylenically unsaturated olefin at a temperature of not more than 40° C. and with a mol ratio of halogenated ethylenically unsaturated olefin to alkanolate of not more than 1.1; (b) contacting an acid with a thus obtained reaction mixture thereby obtaining a mixture comprising the desired halogenated ester; and (c) recovering the halogenated ester from said reaction mixture. In step (a) of the process, the mixture of the alkanolate and diester is contacted with the halogenated ethylenically unsaturated olefin under conditions of agitation sufficient such that the weight ratio of halogenated ester to halogenated ketone as a byproduct obtained after step (b) is at least 10:1.

    摘要翻译: 本发明提供了一种制备所需卤代酯的方法,该方法包括以下步骤:(A)使(A)基本上无机溶剂的液体混合物与(ⅰ)式MOZ的链烷醇酯接触,其中M为碱 或碱土金属,Z为1〜10个碳原子的直链,支链或环状烷基,(ii)在不高于40℃的温度下具有(B)卤化烯键式不饱和烯烃的二酯和 卤化烯键式不饱和烯烃与链烷醇酸酯的摩尔比不超过1.1;(b)使酸与如此获得的反应混合物接触,从而得到包含所需卤代酯的混合物; 在该方法的步骤(a)中,使链烷醇酸酯和二酯的混合物在搅拌足够的条件下与卤化烯属不饱和烯烃接触,使卤代酯的重量比 作为步骤(b)后获得的副产物的卤代酮为至少10:1。

    Process for the preparation of fluorinated carboxylic acid fluorides
    65.
    发明授权
    Process for the preparation of fluorinated carboxylic acid fluorides 失效
    制备氟化羧酸氟化物的方法

    公开(公告)号:US4985594A

    公开(公告)日:1991-01-15

    申请号:US389271

    申请日:1989-08-03

    CPC分类号: C07C51/58

    摘要: Process for the preparation of fluorinated carboxylic acid fluoridesFluorinated carboxylic acid fluorides of the Formula I ##STR1## can be prepared from fluorinated vinyl ethers of the Formula II ##STR2## by heating the vinyl ethers to a temperature of 100.degree. to 350.degree. C.Perfluorinated carboxylic acids and derivatives thereof can be prepared from the carboxylic acid fluorides by secondary reactions, for example hydrolysis, esterification or aminolysis.

    摘要翻译: 氟化氟化物的制备方法式I的氟化羧酸氟化物可以通过将乙烯基醚加热至100℃,由式II的氟化乙烯基醚制备(II) 全氟羧酸及其衍生物可以通过二次反应由羧酸氟化物制备,例如水解,酯化或氨解。

    Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith
    67.
    发明授权
    Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith 有权
    从装载有吸附剂的颗粒中回收氟化表面活性剂的方法

    公开(公告)号:US07754914B2

    公开(公告)日:2010-07-13

    申请号:US11036432

    申请日:2005-01-14

    IPC分类号: C07C69/63 C07C53/21

    CPC分类号: C07C51/493 C07C53/21

    摘要: The present invention provides a method of recovering a fluorinated acid surfactant or salt thereof from adsorbent particles to which said fluorinated acid surfactant has been adsorbed. The method comprises mixing adsorbent particles having adsorbed fluorinated acid surfactant or salt thereof with an alcohol and optionally an acid. The mixture is generally heated to cause esterification of the fluorinated acid surfactant or salt thereof with the alcohol so as to form an ester derivative of the fluorinated acid surfactant, distilling the mixture to form a distillate comprising the ester derivative, separating the ester derivative from the distillate and optionally feeding the remainder of the distillate back into the mixture.

    摘要翻译: 本发明提供一种从吸附了氟化酸表面活性剂的吸附剂颗粒中回收氟化酸表面活性剂或其盐的方法。 该方法包括将具有吸附的氟化酸表面活性剂或其盐的吸附剂颗粒与醇和任选的酸混合。 通常加热混合物以使氟化酸表面活性剂或其盐与醇进行酯化,以形成氟化酸表面活性剂的酯衍生物,蒸馏该混合物以形成包含酯衍生物的馏出物,将酯衍生物与 馏出物和任选地将剩余的馏出物反馈回混合物中。

    Treatment of fluorocarbon feedstocks
    68.
    发明授权
    Treatment of fluorocarbon feedstocks 失效
    氟碳原料的处理

    公开(公告)号:US07166198B2

    公开(公告)日:2007-01-23

    申请号:US10203252

    申请日:2001-02-09

    IPC分类号: B01J19/08

    摘要: A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, a thermal plasma having a tail flame, allowing a fluorocarbon feedstock comprising at least one fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species having fewer carbon atoms than the fluorocarbon compound, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor or reactive species, a fluorocarbon product.

    摘要翻译: 一种处理氟碳原料的方法包括在高温区域中在至少一个阴极和至少一个阳极之间产生电弧,在高温区域中产生电弧,并通过电弧和等离子体气体产生热 具有尾焰的等离子体,允许包含至少一种碳氟化合物的碳氟化合物原料与热等离子体尾焰形成反应性热混合物,其中氟碳化合物解离成至少一种氟碳前体或具有比碳氟化碳少的碳原子的反应性物质 并且将反应性热混合物冷却从碳氟化合物前体或反应性物质形成碳氟化合物产物。

    Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith
    69.
    发明申请
    Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith 有权
    从装载有吸附剂的颗粒中回收氟化表面活性剂的方法

    公开(公告)号:US20050177000A1

    公开(公告)日:2005-08-11

    申请号:US11036432

    申请日:2005-01-14

    IPC分类号: C07C51/493 C07C53/21

    CPC分类号: C07C51/493 C07C53/21

    摘要: The present invention provides a method of recovering a fluorinated acid surfactant or salt thereof from adsorbent particles to which said fluorinated acid surfactant has been adsorbed. The method comprises mixing adsorbent particles having adsorbed fluorinated acid surfactant or salt thereof with an alcohol and optionally an acid. The mixture is generally heated to cause esterification of the fluorinated acid surfactant or salt thereof with the alcohol so as to form an ester derivative of the fluorinated acid surfactant, distilling the mixture to form a distillate comprising the ester derivative, separating the ester derivative from the distillate and optionally feeding the remainder of the distillate back into the mixture.

    摘要翻译: 本发明提供一种从吸附了氟化酸表面活性剂的吸附剂颗粒中回收氟化酸表面活性剂或其盐的方法。 该方法包括将具有吸附的氟化酸表面活性剂或其盐的吸附剂颗粒与醇和任选的酸混合。 通常加热混合物以使氟化酸表面活性剂或其盐与醇进行酯化,以形成氟化酸表面活性剂的酯衍生物,蒸馏该混合物以形成包含酯衍生物的馏出物,将酯衍生物与 馏出物和任选地将剩余的馏出物反馈回混合物中。

    Imidate-containing fluoropolymer compositions
    70.
    发明授权
    Imidate-containing fluoropolymer compositions 失效
    含酰亚胺的含氟聚合物组合物

    公开(公告)号:US06657013B2

    公开(公告)日:2003-12-02

    申请号:US09952010

    申请日:2001-09-11

    IPC分类号: C08L2712

    CPC分类号: C08F8/30 C08F14/18

    摘要: A composition that includes a fluoropolymer comprising interpolymerized units derived from a cure site monomer comprising a nitrile group; and (b) a catalyst composition comprising a compound having the formula R1C(OR2)═NH, and salts thereof, where R1 and R2, independently, are a substituted or unsubstituted alkyl, aryl, aralkyl, or alkenyl group, as well as a method for curing this composition and cured articles prepared from this composition.

    摘要翻译: 一种组合物,其包含含有衍生自包含腈基的固化位点单体的共聚单元的含氟聚合物; 和(b)包含式R 1 C(OR 2)= NH的化合物及其盐的催化剂组合物,其中R 1和R 2独立地是取代或未取代的烷基 ,芳基,芳烷基或烯基,以及用于固化该组合物的方法和由该组合物制备的固化物。