Cotelomers and a process for making them
    3.
    发明授权
    Cotelomers and a process for making them 失效
    Cotelomers和制作它们的过程

    公开(公告)号:US5446214A

    公开(公告)日:1995-08-29

    申请号:US329935

    申请日:1994-10-27

    CPC classification number: C08F214/18

    Abstract: A cotelomer of --CH.sub.2 CF.sub.2 -- (VDF) units and CF.sub.2 CF(CF.sub.3)-- (HFP) units characterized in that the HEP units comprise at least 33% of all VDF and HFP units in the cotelomer combined. Also claimed is a process for preparing a cotelomer in the liquid state comprising reacting (A) a bromine geminal telogen having the general formula RC(R')Br.sub.2 wherein R and R' are selected from the group consisting of F and perfluorinated alkyl radicals having 1 to 8 carbon atoms; (B) 1,1-difluoroethene, and (C) hexafluoropropene, the molar ratio of said components (A):(B):(C) being x:1:1 to x:1:5, in which x is 1 to 5.

    Abstract translation: -CH2CF2-(VDF)单元和CF2CF(CF3) - (HFP)单元的调节子,其特征在于HEP单元包括组合中所有VDF和HFP单元的至少33%。 还要求保护的是制备液体状态调节剂的方法,其中包括使(A)具有通式RC(R')Br 2的溴偕取代物,其中R和R'选自F和具有全氟化烷基的全氟化烷基, 1至8个碳原子; (B)1,1-二氟乙烯和(C)六氟丙烯,所述组分(A):( B):( C)的摩尔比为x:1:1至x:1:5,其中x为1 到5。

    Chemically reactive fluorinated organosilicon compounds and their
polymers

    公开(公告)号:US5041588A

    公开(公告)日:1991-08-20

    申请号:US374847

    申请日:1989-07-03

    CPC classification number: C08G77/24 C07F7/0836 C07F7/16 C07F7/1832 C07F7/184

    Abstract: Chemically reactive fluorinated organosilicon compounds as described for use as, e.g., lubricants, sealants and elastomers, are described corresponding to the formulaeX.sub.2 R.sup.1.sub.2 Si IorXR.sup.2.sub.2 Si(R.sup.3 SiR.sup.2.sub.2).sub.z X IIwhere X a represents a reactive group selected from a halogen, hydroxyl, alkoxy, acetoxy, amino, alkyl amino or dialkyl amino, z is from 1 to 5, inclusive, at least one of the R.sup.1 radicals and at least one of the R.sup.2 radicals bonded to each of the silicon atoms are derived from: 1) a monovalent telomer of fluorinated olefins; 2) a monovalent cotelomer of (a) chlorotrifluoroethylene and a fluoropropene, (b) chlorotrifluoroethylene and vinylidene fluoride, (c) chlorotrifluoroethylene, a fluoropropene and a fluoroethylene, fluoride and a fluoropropene, (d) vinylidene, (e) a fluoroethylene and a perfluoroalkyl vinyl ether, (f) a fluoroethylene, chlorotrifluoroethylene and a perfluoroalkyl vinyl ether, (g) a fluoroethylene, a fluoropropene and vinylidene fluoride, (h) a fluoroethylene, chlorotrifluoroethylene and vinylidene fluoride, or (i) a fluoropropene, chlorotrifluoroethylene and vinylidene fluoride, wherein the telomers and cotelomers are bonded to silicon through a non-halogenated alkylene radical of 2,3,4 carbon atoms and the alkyl groups of the perfluoroalkyl vinyl ethers have from 1 to 3 carbon atoms; or 3) a monovalent oligomer of fluorinated oxetanes and oxiranes, where said oligomer is bonded to silicon by a non-halogenated ethylene or trimethylene radical; any remaining R.sup.1 and R.sup.2 radicals are an alkyl of 1 to 4 carbon atoms, alkenyl, perfluororalkyl-di-methylene, trimethylene or tetramethylene, phenyl or a perfluoroalkyl-substituted phenyl radicals, wherein the perfluoroalkyl portion of the perfluoroalkyl-substituted radicals has 1 to 4 carbon atoms; and R.sup.3 is derived from a divalent telomer or cotelomer from the same group of olefins and perfluoroalkyl vinyl ethers, a divalent oligomer derived from fluorinated oxetanes and fluorinated oxiranes, or is --[CH.sub.2 CH.sub.2 CH.sub.2 OC(CF.sub.3).sub.2 ].sub.2 Ph, wherein PH represents a meta-phenylene radical.

    Method of coating with polyfluorocarbons
    7.
    发明授权
    Method of coating with polyfluorocarbons 失效
    用多氟碳化物涂覆的方法

    公开(公告)号:US4869922A

    公开(公告)日:1989-09-26

    申请号:US235054

    申请日:1988-08-23

    CPC classification number: C08J7/123 B05D1/62 C08F2/52 C23C16/5096 B05D2506/10

    Abstract: Films, layers, tapes, plates, and similar structures of metal or of plastic materials, coated with thin polyfluorocarbon films. These films, tapes, etc., are characterized in that no other materials are interposed; the polyfluorocarbon films are adherent and not porous, and have controlled wettability characteristics. The polyfluorocarbons have the formula (CF.sub.x).sub.n, wherein x is within the range of from 0.3 to 2.0, and are directly obtained on the substrate by the plasma-polymerization of gaseous streams of C.sub.2 F.sub.6 and H.sub.2 ; C.sub.2 F.sub.6 and C.sub.2 F.sub.4 ; CF.sub.4 and H.sub.2 ; CF.sub.4 and C.sub.2 F.sub.4 ; or of C.sub.2 F.sub.4. The metal substrate may be, e.g., Al, Cu, Fe, tin-coated Fe, Si, noble metals and alloys thereof. The substrate of plastic materials may be constituted, e.g., by polytetrafluoroethylene, polypropylene, polyethylene, polyphenyloxide, polycarbonate, and neoprene.

    Abstract translation: 用薄的多氟碳膜涂覆的金属或塑料材料的膜,层,带,板和类似结构。 这些膜,胶带等的特征在于不插入其它材料; 多氟碳膜是粘附的并且不是多孔的,并且具有受控的润湿特性。 多氟碳烷具有式(CF x)n,其中x在0.3至2.0的范围内,并且通过C2F6和H2的气流的等离子体聚合直接在基底上获得; C2F6和C2F4; CF4和H2; CF4和C2F4; 或C2F4。 金属基材可以是例如Al,Cu,Fe,锡包覆的Fe,Si,贵金属及其合金。 塑料材料的基材可以由聚四氟乙烯,聚丙烯,聚乙烯,聚苯氧化物,聚碳酸酯和氯丁橡胶构成。

    Fluorinated compounds containing hetero atoms and polymers thereof
    10.
    发明授权
    Fluorinated compounds containing hetero atoms and polymers thereof 失效
    含有杂原子的氟化合物及其聚合物

    公开(公告)号:US5350878A

    公开(公告)日:1994-09-27

    申请号:US15737

    申请日:1993-02-10

    CPC classification number: C08G63/6826 C07C69/63 C08F214/18

    Abstract: This invention provides 1) novel reactive fluorinated compounds derived from a specified class of telomers or cotelomers of fluoroolefins; and 2) stable products and stable polymers thereof obtained by reaction or polycondensation of the novel reactive fluorinated compounds with specified classes of hydrogenated aliphatic, alicyclic, aromatic reactive compounds, telechelic oligomers and block polymers wherein said stable products and polymers contain hetero atoms such as oxygen, sulfur or nitrogen and are characterized by high thermal and chemical resistance.

    Abstract translation: 本发明提供1)衍生自特定类别的聚烯烃或聚烯烃的聚碳酸酯的新型反应性氟化化合物; 和2)通过新型反应性氟化化合物与特定类别的氢化脂族,脂环族,芳族反应性化合物,遥爪低聚物和嵌段聚合物的反应或缩聚获得的稳定产物和稳定的聚合物,其中所述稳定产物和聚合物含有杂原子如氧 ,硫或氮,其特征在于耐高温和耐化学性。

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