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    • 1. 发明授权
    • Crosslinkable copolymer composition and a method for the preparation
thereof
    • 可交联共聚物组合物及其制备方法
    • US4722975A
    • 1988-02-02
    • US800433
    • 1985-11-21
    • Kunio ItohYasuo TarumiTsutomu NakamuraHiroyuki OhataTsutomu MatsuoHarukazu Okuda
    • Kunio ItohYasuo TarumiTsutomu NakamuraHiroyuki OhataTsutomu MatsuoHarukazu Okuda
    • C08F8/42
    • C08F8/42
    • The inventive copolymer composition is satisfactorily curable or vulcanizable into, for example, a rubbery elastomer even by an organic peroxide contained therein as a crosslinking agent. The crosslinkable copolymer comprised therein is a polymer having, in a molecule, at least two monomeric units each having a vinyl-containing organosilicon pendant group represented by the general formula (Vi.sub.m R.sup.1.sub.n SiO).sub.a Vi.sub.b R.sup.2.sub.c Si--, in which Vi is a vinyl group, R.sup.1 is a hydrogen atom or a group selected from the class consisting of monovalent hydrocarbon groups free from aliphatic unsaturation, hydroxy group and hydrolyzable groups excepting halogen atoms, R.sup.2 is a hydrogen atom or a monovalent hydrocarbon group, m is 1, 2 or 3, n is zero, 1 or 2, a is 1, 2 or 3, b is zero, 1 or 2 and c is zero, 1 or 2 with the proviso that a+b=1, 2 or 3 and a+b+c=3. Such a copolymer can be prepared by the copolymerization of a first ordinary ethylenically unsaturated monomer and a second monomer having, simultaneously in a molecule, an ethylenically unsaturated linkage copolymerizable with the first monomer and the vinyl-containing organosilicon group of the above given formula.
    • 本发明的共聚物组合物甚至可以通过其中含有的有机过氧化物作为交联剂令人满意地固化或硫化成例如橡胶弹性体。 包含在其中的可交联共聚物是分子中具有至少两个单体单元的聚合物,每个单体单元具有由通式(VimR1nSiO)aVibR2cSi-表示的含乙烯基的有机硅侧基,其中Vi是乙烯基,R1是 氢原子或选自不含脂肪族不饱和键的一价烃基,羟基和除卤素原子外的可水解基团的基团,R 2为氢原子或一价烃基,m为1,2或3,n为0 ,1或2,a为1,2或3,b为0,1或2,c为0,1或2,条件是a + b = 1,2或3,a + b + c = 3。 这种共聚物可以通过共聚第一普通烯键式不饱和单体和第二单体来制备,该单体在分子中同时具有可与上述给定式的第一单体和含乙烯基的有机硅基团共聚的烯属不饱和键。
    • 7. 发明授权
    • Oil-resistant rubber composition
    • 耐油橡胶组合物
    • US4761452A
    • 1988-08-02
    • US883535
    • 1986-07-09
    • Kunio ItohMotoo FukushimaTsutomu Nakamura
    • Kunio ItohMotoo FukushimaTsutomu Nakamura
    • C08L23/00C08K3/00C08L23/16C08L33/00C08L33/04C08L33/08C08L43/04
    • C08L43/04C08L23/16C08L2312/08
    • A rubber composition capable of giving a highly oil-resistant vulcanizate with an organic peroxide as the vulcanizing agent is proposed. The composition is a blend of an EPM or EPDM rubber and an acrylic rubber loaded with a reinforcing filler, of which the latter rubber is a copolymer having at least two vinylsilyl groups in a molecule as the pendant groups introduced by the copolymerization of one or more acrylic monomers with a vinylsilyl-containing organosilicon compound having an aliphatically unsaturated group copolymerizable with the acrylic monomers in a molecule, such as CH.sub.2 .dbd.CH--CO--O--CH.sub.2 CH.sub.2 CH.sub.2 --Si-- and CH.sub.2 .dbd.CH--C.sub.6 H.sub.4 --Si--. The covulcanizate has the high mechanical strengths of the EPM or EPDM rubber and the high oil resistance of the acrylic rubber in combination.
    • 提出了能够以有机过氧化物作为硫化剂赋予高耐油硫化橡胶的橡胶组合物。 该组合物是EPM或EPDM橡胶和装载有增强填料的丙烯酸橡胶的共混物,其中后者橡胶是在分子中具有至少两个乙烯基甲硅烷基的共聚物,作为通过一个或多个 丙烯酸类单体与具有乙烯基甲硅烷基的有机硅化合物在分子中具有可与丙烯酸单体共聚的脂族不饱和基团,例如CH 2 = CH-CO-O-CH 2 CH 2 CH 2 -Si-和CH 2 = CH-C 6 H 4 -Si。 共硫化橡胶具有EPM或EPDM橡胶的高机械强度和丙烯酸橡胶的高耐油性组合。