Process for producing chlorofluorobenzenes
    1.
    发明授权
    Process for producing chlorofluorobenzenes 失效
    生产氯氟苯的方法

    公开(公告)号:US5208394A

    公开(公告)日:1993-05-04

    申请号:US924790

    申请日:1992-08-06

    IPC分类号: C07C17/093

    CPC分类号: C07C17/093

    摘要: A process for producing chlorofluorobenzenes, which comprises reacting fluorine-containing nitrobenzenes of the following formula (1) with chlorine gas to obtain chlorofluorobenzenes of the following formula (2): ##STR1## wherein n and m are integers satisfying 1.ltoreq.n.ltoreq.3, 0.ltoreq.m.ltoreq.2 and 1.ltoreq.n+m.ltoreq.3.

    摘要翻译: (1)的含氟硝基苯与氯气反应得到下式(2)的氯氟苯:其中n和m 是满足1≤n≤3,0≤m≤2和1≤n+ m <3的整数。

    Bromination method
    3.
    发明授权
    Bromination method 失效
    溴化法

    公开(公告)号:US5072062A

    公开(公告)日:1991-12-10

    申请号:US680077

    申请日:1991-04-03

    IPC分类号: C07C17/20 C07C19/08 C07C19/14

    CPC分类号: C07C17/204

    摘要: A method for brominating a perfluoroalkyl iodide or a perfluoroalkylene diiodide, which comprises reacting a perfluoroalkyl iodide or a perfluoroalkylene diiodide with a brominating agent in a gas phase to obtain a perfluoroalkyl bromide or a perfluoroalkylene dibromide.

    摘要翻译: 溴化全氟烷基碘或全氟亚烷基二碘化物的方法,其包括使全氟烷基碘或全氟亚烷基二碘化物与溴化剂在气相中反应,得到全氟烷基溴或全氟亚烷基二溴化物。

    Polyfluorohydrocarbon group-containing monomers, their polymers and
applications of the polymers
    4.
    发明授权
    Polyfluorohydrocarbon group-containing monomers, their polymers and applications of the polymers 失效
    含聚氟烃基的单体,它们的聚合物和聚合物的应用

    公开(公告)号:US5646222A

    公开(公告)日:1997-07-08

    申请号:US682010

    申请日:1996-07-16

    摘要: A polyfluorohydrocarbon group-containing acrylate of the formula (1):R.sub.f --(CH.sub.2).sub.n --Q--(CH.sub.2).sub.h --.phi.--[X--.phi.--].sub.y --(CH.sub.2).sub.m OC(O)CR.dbd.CH.sub.2(1)wherein R.sub.f is a polyfluorohydrocarbon group having from 2 to 22 carbon atoms to which fluorine atoms are bonded, wherein some of such carbon atoms may be substituted by ether-type oxygen atoms,.phi. is a p-phenylene group which may be substituted by one or more halogen atoms selected from fluorine and chlorine, provided that when a plurality of .phi. are present in one molecule, such a plurality of .phi. may be the same or different from one another,R is a hydrogen atom, a methyl group, a fluorine atom, a chlorine atom or a bromine atom,Q is an oxygen atom or a sulfur atom,X is a single bond, --CH.dbd.CH--, --N.dbd.CH--, --CH.dbd.N-- or --C(O)--,n is an integer of from 1 to 22,h is an integer of from 0 to 22,m is an integer of from 1 to 11, andy is an integer of from 0 to 5.

    摘要翻译: 具有式(1)的多氟烃基丙烯酸酯:Rf-(CH2)nQ-(CH2)h- phi- [X-phi] y-(CH2)mOC(O)CR = CH2(1)其中Rf 是具有2〜22个碳原子的氟原子键合的多氟烃基,其中一些这样的碳原子可以被醚型氧原子取代,phi是可被一个或多个卤素取代的对亚苯基 选自氟和氯的原子,条件是当多个phi存在于一个分子中时,这样的多个phi可以相同或不同,R是氢原子,甲基,氟原子, 氯原子或溴原子,Q是氧原子或硫原子,X是单键,-CH = CH-,-N = CH-,-CH = N-或-C(O) - ,n是 1〜22的整数,h为0〜22的整数,m为1〜11的整数,y为0〜5的整数。

    Stainproofing oil for a heat fixing roller
    5.
    发明授权
    Stainproofing oil for a heat fixing roller 失效
    用于热定影辊的防油

    公开(公告)号:US5568239A

    公开(公告)日:1996-10-22

    申请号:US412221

    申请日:1995-03-27

    摘要: A stainproofing oil for a heat fixing roller, which consists essentially of a fluorosilicone compound having a silicon atom to which a monovalent fluorine-containing group selected from the formulae (1) to (3) is bonded:R.sub.f.sup.1 --X.sup.1 -- (1)R.sub.f.sup.2 --X.sup.2 --O--X.sup.3 -- (2)R.sub.f.sup.3 --X.sup.4 --O--X.sup.5 -- (3)wherein R.sub.f.sup.1 is a monovalent polyfluorohydrocarbon group, R.sub.f.sup.2 is a monovalent polyfluoroalkyl group containing an ether oxygen atom, R.sub.f.sup.3 is a monovalent polyfluorohydrocarbon group, and each of X.sup.1 to X.sup.5 independently is a bivalent hydrocarbon group.

    摘要翻译: 用于热定影辊的防污油,其基本上由具有选自式(1)至(3)的一价含氟基团的具有硅原子的氟硅氧烷化合物组成:Rf1-X1-(1)Rf2 -X2-O-X3-(2)Rf3-X4-O-X5-(3)其中Rf1是一价多氟烃基,Rf2是含有醚氧原子的一价多氟烷基,Rf3是一价多氟烃基, X1〜X5独立地为二价烃基。

    Process for recovering fluoropolymers

    公开(公告)号:US07015263B2

    公开(公告)日:2006-03-21

    申请号:US10091315

    申请日:2002-03-06

    IPC分类号: C08J11/04 C08F6/16

    摘要: A process for recovering fluoropolymers, which comprises contacting an ion exchange membrane comprising a fluoropolymer having carboxylic acid groups (hereinafter referred to as a C-polymer) and a fluoropolymer having sulfonic acid groups (hereinafter referred to as a S-polymer) and having inorganic particles deposited on the surface, with a solvent to let it swell and to remove the inorganic particles from the surface, then, contacting it with a solvent which is a good solvent for the S-polymer and a poor solvent for the C-polymer to obtain a solid composed mainly of the C-polymer and a solution having the S-polymer dissolved therein, and recovering them by solid-liquid separation.

    Process for recovering fluoropolymers

    公开(公告)号:US06515102B2

    公开(公告)日:2003-02-04

    申请号:US10092630

    申请日:2002-03-08

    IPC分类号: C08F600

    摘要: A process for recovering fluoropolymers, which comprises contacting an ion exchange membrane comprising a fluoropolymer having carboxylic acid groups (hereinafter referred to as a C-polymer) and a fluoropolymer having sulfonic acid groups (hereinafter referred to as a S-polymer) and having inorganic particles deposited on the surface, with a solvent which is a good solvent for the C-polymer and a good solvent for the S-polymer, to separate a solution having the C-polymer and the S-polymer dissolved therein, and the inorganic particles, then esterifying the C-polymer in the solution to form precipitate of an ester of the C-polymer, and fractionating and recovering the precipitate and a solution having the S-polymer dissolved therein by solid-liquid separation.