Anhydride-functional organo/(poly)siloxanes, a process for preparing the
same and uses thereof
    1.
    发明授权
    Anhydride-functional organo/(poly)siloxanes, a process for preparing the same and uses thereof 失效
    酐功能性有机/(聚)硅氧烷,其制备方法和用途

    公开(公告)号:US5015700A

    公开(公告)日:1991-05-14

    申请号:US563160

    申请日:1990-08-06

    CPC分类号: C08G77/20 C08G77/14 C08G77/38

    摘要: Anhydride-functional organo(poly)siloxanes having average units of the general formula ##EQU1## in which the R(s) are the same or different and represent a monovalent hydrocarbon radical or a monovalent halogenated hydrocarbon radical having from 1 to 18 carbon atom(s) per radical, A represents a radical of the formula ##STR1## in which R.sup.1 represents a hydrogen atom or a monovalent hydrocarbon radical or a monovalent halogenated hydrocarbon radical having from 1 to 12 carbon atom(s) per radical and R.sup.2 represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 12 carbon atom(s) per radical, or the two radicals R and R.sup.2 together represent a divalent hyrocarbon radical having from 3 to 5 carbon atoms per radical, R.sup.3 represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 4 carbon atom(s) per radical, with the proviso that R.sup.3 is a hydrogen atom if the two radicals R.sup.1 and R.sup.2 together represent a divalent hydrocarbon radical having from 3 to 5 carbon atoms per radical, R.sup.4, which may be the same or different, represent a hydrogen atom, a halogen atom or a cyano radical, a is 0 or 1, with an average of from 0.003 to 1.0, b is 0, 1, 2 or 3, with an average of from 0.05 to 2.5, and the sum of a+b is an average which is not greater than 3, with the proviso that at least one A radical is present per molecule.

    摘要翻译: 具有通式(I)的平均单元的酸酐官能的有机(聚)硅氧烷,其中R(s)相同或不同并且表示一价烃基或具有1至18个的一价卤代烃基 每个基团的碳原子,A代表式为“IMAGE”的基团,其中R 1表示氢原子或每个基团具有1至12个碳原子的一价烃基或一价卤代烃基,R 2 表示氢原子或每个基团具有1至12个碳原子的单价烃基,或者两个基团R和R 2一起表示每个基团具有3至5个碳原子的二价烃基,R 3表示氢原子 或每个基团具有1至4个碳原子的单价烃基,条件是如果两个基团R 1和R 2一起表示具有3至5个碳原子的二价烃基,则R3为氢原子 每个基团的原子核原子,R4可以相同或不同,表示氢原子,卤素原子或氰基,a为0或1,平均为0.003至1.0,b为0,1,2 或3,平均为0.05至2.5,a + b的总和是不大于3的平均值,条件是每个分子存在至少一个A基团。

    Thermocurable compositions
    3.
    发明授权
    Thermocurable compositions 失效
    耐热组合物

    公开(公告)号:US5162452A

    公开(公告)日:1992-11-10

    申请号:US530388

    申请日:1990-05-30

    CPC分类号: C09D183/08 C08L83/08

    摘要: The Thermocurable compositions which contain(A) at least one mercaptoalkyl-containing compound which contains at least two SiC-bonded radicals per molecule of the general formulaHS--R.sup.2 -- (I) where R.sup.2 represents a divalent hydrocarbon radical having from 1 to 8 carbon atom(s) per radical, selected from the group consisting mercaptoalkyl-containing organopolysiloxanes and cocondensates of mercaptoalkyl-containing organosilicon compounds containing groups capable of condensation, and hydroxyl-containing organic compounds,(B) at least one vinyl-containing compound which is compatible with constituent (A) and contains at least two groups per molecule of the general formulaR.sup.4 CH.dbd.CR.sup.3 C(O)O-- (II) where R.sup.3 represents a hydrogen atom or a methyl radical, and R.sup.4 represents a hydrogen atom or an alkyl radical having from 1 to 3 carbon atom(s) per radical, and(C) a mixture of a strong organic base selected from the group consisting of quaternary ammonium hydroxides, quaternary ammonium alkoxides, tertiary, secondary and primary amines, and a weak protonic acid.

    摘要翻译: 含有(A)至少一种含巯基烷基的化合物的热固性组合物,其每分子具有通式HS-R2-(I)中至少两个SiC键合的基团,其中R2表示具有1至8个碳原子的二价烃基 每个基团的原子选自含巯基烷基的有机聚硅氧烷和含有缩合基团的含巯基烷基的有机硅化合物的缩聚物和含羟基的有机化合物,(B)至少一种含乙烯基的化合物,其相容 与组分(A)组成,每分子含有至少两个通式为R 4 CH = CR 3 C(O)O-(II)的基团,其中R 3表示氢原子或甲基,R 4表示氢原子或具有 每个基团具有1至3个碳原子,和(C)选自下列的强有机碱的混合物:季铵氢氧化物,季铵醇盐,te 仲胺和伯胺,以及弱质子酸。