Organopolysiloxane
    1.
    发明授权
    Organopolysiloxane 失效
    有机聚硅氧烷

    公开(公告)号:US5464917A

    公开(公告)日:1995-11-07

    申请号:US282490

    申请日:1994-08-01

    IPC分类号: C08G77/24 C08G77/08

    CPC分类号: C08G77/24

    摘要: A straight-chain organopolysiloxane represented by the general formula: ##STR1## wherein R.sup.1 represents a monovalent hydrocarbon group, R.sup.2 represents a bivalent organic group, Rf represents a perfluoroalkyl ether group or a perfluoroalkyl group, X represents a hydrogen atom or an organosilyl group, and n is an integer of 15 to 4,000 and having a content of cyclic polysiloxanes with a molecular weight of 3,000 or below of 50 ppm or below. This organopolysiloxane is novel in that the content of cyclic siloxanes with a molecular weight of 3,000 or below is only 50 ppm or below and the organopolysiloxane can obviate contact failure due to volatilization of components or surrounding contamination due to bleeding when used as materials in the field of electricity and electronics or as building materials.

    摘要翻译: 由以下通式表示的直链有机聚硅氧烷:其中R1表示一价烃基,R2表示二价有机基团,Rf表示全氟烷基醚基或全氟烷基,X表示氢原子或有机甲硅烷基, n为15〜4000的整数,分子量为3000以下的环状聚硅氧烷的含量为50ppm以下。 该有机聚硅氧烷是新颖的,因为分子量为3,000以下的环状硅氧烷的含量仅为50ppm以下,有机聚硅氧烷可以消除由于挥发成分引起的接触不良或当作为本领域的材料使用时出现渗出的周围污染 电力电子或建筑材料。

    Cyclotrisiloxane and process for producing the same
    4.
    发明授权
    Cyclotrisiloxane and process for producing the same 失效
    环三硅氧烷及其制备方法

    公开(公告)号:US5403945A

    公开(公告)日:1995-04-04

    申请号:US147486

    申请日:1993-11-05

    IPC分类号: C07F7/21 C07F7/08

    CPC分类号: C07F7/21

    摘要: A cyclotrisiloxane represented by the general formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and are each an alkyl group of 1 to 3 carbon atoms and X is a cyclohexyl group or an alkyl group expressed by the formula:--C.sub.n H.sub.2n+1where n is an integer of 4 to 15. The cyclotrisiloxane is useful as an intermediate for producing silicone oils and silicone rubbers, and the obtained silicone oils and silicone rubbers are excellent in lubricity.

    摘要翻译: 由通式(1)表示的环三硅氧烷:其中R 1,R 2,R 3,R 4和R 5可以相同或不同,并且各自是1至3个碳原子的烷基,X是环己基 基团或由下式表示的烷基-CnH 2 n + 1其中n为4至15的整数。环三硅氧烷可用作制备硅油和硅橡胶的中间体,所得硅油和硅橡胶具有优异的 润滑性。

    Chain organopolysiloxane and process for producing the same
    5.
    发明授权
    Chain organopolysiloxane and process for producing the same 失效
    链有机聚硅氧烷及其制造方法

    公开(公告)号:US5374702A

    公开(公告)日:1994-12-20

    申请号:US196848

    申请日:1994-02-15

    IPC分类号: C08G77/24 C08G77/34 C08G77/06

    CPC分类号: C08G77/34 C08G77/24

    摘要: A chain organopolysiloxane is obtained by polymerizing a fluorine-containing cyclotrisiloxane of the general formula: ##STR1## (wherein R.sup.1 is a monovalent hydrocarbon group, and Rf is a perfluoroalkyl group or perfluoroalkyl ether group)in the presence of a lithium silanolate catalyst, silylating the resulting polymerization product, and treating the silylated product at a temperature of not lower than 100.degree. C. under a reduced pressure of not higher than 10.sup.-1 mmHg to remove volatile components therefrom. The organopolysiloxane is essentially free of volatile low-molecular siloxanes. Therefore, the chain organopolysiloxane can be used without the problems which might arise from the volatile low-molecular siloxanes, such as evaporation of low-molecular siloxanes from a cured rubber product with the result of electrical-contact troubles.

    摘要翻译: 通过在硅酸铝锂催化剂的存在下聚合具有以下通式的含氟环三硅氧烷获得链有机聚硅氧烷:其中R 1是一价烃基,Rf是全氟烷基或全氟烷基醚基团,甲硅烷基化 得到的聚合产物,并在不低于10-1mmHg的减压下在不低于100℃的温度下处理甲硅烷基化产物,以从其中除去挥发性组分。 有机聚硅氧烷基本上不含挥发性低分子硅氧烷。 因此,可以使用链有机聚硅氧烷,而不会由挥发性低分子量硅氧烷引起的问题,例如由于电接触问题导致的硫化橡胶产物的低分子量硅氧烷的蒸发。

    Flourine-containing curable compositions
    7.
    发明授权
    Flourine-containing curable compositions 失效
    含有植物的可固化组合物

    公开(公告)号:US6111050A

    公开(公告)日:2000-08-29

    申请号:US157576

    申请日:1998-09-21

    CPC分类号: C08G59/54 C08G59/30

    摘要: A fluorine-containing curable composition comprises (A) a linear perfluoro compound having at least two secondary amino groups per molecule and a divalent perfluoroalkylene or divalent perfluoropolyether structure in the main chain, and (B) a crosslinkable fluorinated compound having at least three functional groups which are crosslinkable with the secondary amino groups of (A). This composition readily cures, with standing at room temperature or heating only, to a cured product having excellent solvent and chemical resistance.

    摘要翻译: 含氟可固化组合物包含(A)每分子具有至少两个仲氨基的直链全氟化合物和主链中的二价全氟亚烷基或二价全氟聚醚结构,和(B)具有至少三个官能团的交联性氟化化合物 其可与(A)的仲氨基交联。 该组合物容易地固化在室温或仅加热下固化到具有优异的溶剂和耐化学性的固化产物。

    Organic silicon compounds
    8.
    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。