Fluorine-containing organosilicon compounds
    1.
    发明授权
    Fluorine-containing organosilicon compounds 失效
    含氟有机硅化合物

    公开(公告)号:US5300613A

    公开(公告)日:1994-04-05

    申请号:US69847

    申请日:1993-06-01

    CPC分类号: C07F7/0854 C07F7/21

    摘要: Fluorine-containing organosilicon compounds having the following general formula:CH.sub.2 .dbd.CHCH.sub.2 NHCO--[Rf--CONH(CH.sub.2).sub.3 --Q--(CH.sub.2).sub.3 NHCO].sub.a --Rf--CONHCH.sub.2 CH .dbd.CH.sub.2wherein a is an integer of 1 or above, Rf is a divalent perfluoropolyether group, and Rf is a divalent cyclosiloxane group containing an unsubstituted or substituted monovalent hydrocarbon group without an aliphatically unsaturated bond. The compounds are of use as a starting material in synthesizing rubbers or mold release agents which are high in such properties as solvent resistance, chemical resistance and the like.

    摘要翻译: 具有以下通式的含氟有机硅化合物:CH 2 = CHCH 2 NHCO-(R f-CONH(CH 2)3-Q-(CH 2)3 NHCO)a-R f -CONHCH 2 CH = CH 2其中a为1或更高的整数,Rf为 二价全氟聚醚基,Rf是含有未被取代或取代的没有脂族不饱和键的一价烃基的二价环硅氧烷基团。 该化合物可用作合成橡胶或脱模剂的原料,其具有耐溶剂性,耐化学性等特性。

    Polymerization of hexafluoropropene oxide
    2.
    发明授权
    Polymerization of hexafluoropropene oxide 失效
    六氟丙烯氧化物的聚合

    公开(公告)号:US5817746A

    公开(公告)日:1998-10-06

    申请号:US940965

    申请日:1997-09-30

    IPC分类号: C08G65/22 C08G59/68

    CPC分类号: C08G65/226

    摘要: In polymerizing hexafluoropropene oxide (HFPO) into a fluorinated polyether, a liquefied gas of fluorocarbon having 1 to 4 carbon atoms is added to a reactor. HFPO is polymerized in the reactor while maintaining a gas phase in the reactor under a pressure lower than the vapor pressure of the liquefied gas and allowing the liquefied gas to evaporate from the polymerization system. Heat of polymerization can be efficiently removed from the HFPO polymerization system of high viscosity, and the polymerization temperature is kept low.

    摘要翻译: 在将六氟丙烯氧化物(HFPO)聚合成氟化聚醚的过程中,将碳氟化碳碳氢化合物的液化气体加入到反应器中。 将HFPO在反应器中聚合,同时在低于液化气体的蒸汽压力的压力下保持反应器中的气相,并允许液化气体从聚合系统蒸发。 可以从高粘度的HFPO聚合体系中有效地除去聚合热,聚合温度保持不变。

    Organic silicon compounds
    5.
    发明授权
    Organic silicon compounds 失效
    有机硅化合物

    公开(公告)号:US5386049A

    公开(公告)日:1995-01-31

    申请号:US18510

    申请日:1993-02-17

    CPC分类号: C08G77/50

    摘要: Organic silicone compounds of this invention are expressed by the following general chemical formula: ##STR1## wherein R.sup.1 is a substituted or unsubstituted alkyl group with 1 to 4 carbon atoms, R.sup.2 is substituted or unsubstituted monovalent hydrocarbon group, X is either a hydrogen atom or a triorganosilyl group which is expressed by the following general chemical formula (2): ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5 are a substituted or unsubstituted monovalent hydrocarbon group with 1 to 8 carbon atoms, each of which may be the same or different, p is an integer from 4 to 16, m is an integer from 0 to 1000, and n is an integer from 1 to 1000. The organic silicon compounds of this invention are extremely useful as raw material of rubber cured products with high strength and a superior transparency.

    摘要翻译: 本发明的有机硅氧烷化合物由以下通式表示:其中R 1为取代或未取代的碳原子数1〜4的烷基,R 2为取代或未取代的一价烃基,X为氢原子或 由以下一般化学式(2)表示的三有机甲硅烷基:其中R 3,R 4和R 5是具有1至8个碳原子的取代或未取代的一价烃基,其各自可以相同或不同, p为4〜16的整数,m为0〜1000的整数,n为1〜1000的整数。本发明的有机硅化合物作为高强度的橡胶固化物的原料非常有用, 透明度高。

    Curable silicone composition
    6.
    发明授权
    Curable silicone composition 失效
    可固化硅酮组合物

    公开(公告)号:US5288829A

    公开(公告)日:1994-02-22

    申请号:US917291

    申请日:1992-07-23

    摘要: A curable silicone composition, comprising (A) a fluorosilicone represented by the following general formula (1): ##STR1## wherein Rf represents a perfluoroalkylene group or perfluoropolyether group having 11 to 30 carbon atoms, R.sup.1, R.sup.2, and R.sup.3 each represent a monovalent hydrocarbon group, a and p are each an integer of 2 or over, b and c are each an integer of 0 or over, and X is a triorganosilyl group, (B) an organohydrogensiloxane containing two or more Si--H groups in the molecule, and (C) a platinum family metal catalyst. This composition upon curing gives a rubberlike elastic product excellent in solvent resistance, chemical resistance, water repellency, and oil repellency and low in moisture permeability.

    摘要翻译: 一种可固化有机硅组合物,其包含(A)由以下通式(1)表示的氟硅酮:(*化学结构*)(1)其中Rf表示具有11至30个碳原子的全氟亚烷基或全氟聚醚基,R1,R2, 和R 3各自表示一价烃基,a和p各自为2以上的整数,b和c各自为0以上的整数,X为三有机甲硅烷基,(B)含有2个以上Si的有机氢硅氧烷 -H基团,和(C)铂族金属催化剂。 固化后的这种组合物产生耐溶剂性,耐化学性,防水性,拒油性和透湿性低的橡胶状弹性体。

    Curable organosiloxane-based composition
    7.
    发明授权
    Curable organosiloxane-based composition 失效
    可固化的有机硅氧烷基组合物

    公开(公告)号:US5312885A

    公开(公告)日:1994-05-17

    申请号:US38600

    申请日:1993-03-23

    摘要: Disclosed is an organosiloxane polymer-based composition curable by the mechanism of the hydrosilation reaction between silicon-bonded vinyl groups in a vinylsilyl-terminated perfluoropolyalkylene or perfluoropolyalkylene polyether compound and silicon-bonded hydrogen atoms in a hydrosilyl-terminated perfluoropolyalkylene or perfluoropolyalkylene polyether compound as promoted by a catalyst. Different from conventional platinum compounds as the catalyst for the hydrosilation reaction, the catalyst in the inventive composition is a complex compound of rhodium such as tris(triphenylphosphine) rhodium chloride, rhodium acetate dimer and rhodium acetylacetonate so that the composition is imparted with greatly improved storage stability without viscosity increase over months at room temperature but without affectibg the curability at an elevated temperature.

    摘要翻译: 公开了一种基于有机硅氧烷聚合物的组合物,其可通过在乙烯基甲硅烷基封端的全氟聚亚烷基或全氟聚亚烷基聚醚化合物中与硅键合的乙烯基之间的硅氢化硅烷化氢化硅烷基封端的全氟聚亚烷基或全氟聚亚烷基聚醚化合物中与硅键合的氢原子 通过催化剂。 与作为硅氢化反应的催化剂的常规铂化合物不同,本发明组合物中的催化剂是铑的络合物,例如三(三苯基膦)氯化铑,乙酸铑二聚体和乙酰丙酮化铑,使得组合物被赋予极大改善的储存 在室温下几个月没有粘度增加的稳定性,但在高温下不影响固化性。

    Fluorine-containing silicone rubber composition
    8.
    发明授权
    Fluorine-containing silicone rubber composition 失效
    含氟硅橡胶组合物

    公开(公告)号:US5310846A

    公开(公告)日:1994-05-10

    申请号:US36252

    申请日:1993-03-24

    CPC分类号: C08K5/14

    摘要: A fluorine-containing silicone rubber composition comprising (A) a fluorocarbonsiloxane having the following general formula (1): ##STR1## wherein a to d is a positive integer, R.sup.1 and R.sup.2 are a monovalent hydrocarbon group free of aliphatic unsaturated groups, R.sup.3 is a monovalent hydrocarbon group containing an aliphatic unsaturated bond, Rf.sup.1 is a fluorine-containing alkylene polyether group, and (B) an organic peroxide. The composition is excellent in solvent resistance, chemical resistance and water and oil repellency, and can be molded by press molding and has been improved in respect of insufficient curing.

    摘要翻译: 一种含氟硅橡胶组合物,其包含(A)具有以下通式(1)的氟代硅氧烷:其中a至d为正整数,R 1和R 2为不含 脂肪族不饱和基团,R 3为含有脂肪族不饱和键的一价烃基,Rf 1为含氟亚烷基聚醚基,(B)有机过氧化物。 该组合物的耐溶剂性,耐化学性和拒水斥油性优异,可以通过压制成型而成型,在固化不足方面得到改善。