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    • 4. 发明授权
    • Brominated rubber
    • 溴化橡胶
    • US4252918A
    • 1981-02-24
    • US43743
    • 1979-05-30
    • Hiroharu IkedaYasuyuki ShimozatoKohei Goto
    • Hiroharu IkedaYasuyuki ShimozatoKohei Goto
    • C08C19/14C08F8/20C08F8/22
    • C08C19/14
    • When an elastomeric copolymer of a C.sub.4 or C.sub.5 conjugated diene and an aromatic vinyl compound is brominated in latex while keeping the uniformity of the latex until the amount of bormine combined with the copolymer reaches 0.5-15% by weight, the resulting brominated conjugated diene-aromatic vinyl compound rubber contains 3-80% by weight of a toluene-insoluble fraction formed by the bromination and has a high green strength and a good processability. A vulcanized rubber obtained from said brominated rubber has a high modulus of elasticity and a high tensile strength. When an anionic surfactant is used as an emulsifier, the uniformity of the above-mentioned latex can be kept by adjusting the pH value of the bromination reaction system to 9 or highter, preferably 10 or higher, during the reaction or by auxiliarily adding a nonionic surfactant. When a cationic or nonionic surfactant is used as an emulsifier, regulation of pH is unnecessary.
    • 当C4或C5共轭二烯和芳族乙烯基化合物的弹性体共聚物在胶乳中溴化,同时保持胶乳的均匀性直到与共聚物结合的沸石的量达到0.5-15重量%时,得到的溴化共轭二烯 - 芳族乙烯基化合物橡胶含有3-80重量%的通过溴化形成的甲苯不溶性级分,并且具有高的生坯强度和良好的加工性能。 由所述溴化橡胶获得的硫化橡胶具有高弹性模量和高拉伸强度。 当使用阴离子表面活性剂作为乳化剂时,可以通过在反应期间将溴化反应体系的pH值调节至9或更高,优选10或更高,或通过辅助添加非离子表面活性剂来保持上述胶乳的均匀性。 表面活性剂。 当使用阳离子或非离子表面活性剂作为乳化剂时,不需要调节pH。
    • 9. 发明授权
    • Rubber composition containing crosslinkable processing aid
    • 含有可交联加工助剂的橡胶组合物
    • US4322319A
    • 1982-03-30
    • US182584
    • 1980-08-29
    • Hiroharu IkedaYasuyuki ShimozatoKazuo Sekine
    • Hiroharu IkedaYasuyuki ShimozatoKazuo Sekine
    • C08F236/04C08L21/00C08L7/00C08L9/00C08L9/06
    • C08F236/04C08L21/00
    • A rubber composition comprising (A) 100 parts by weight of a rubber; (B) 5 to 50 parts by weight of a low molecular weight diene copolymer containing a glycidyl group-containing monomer or chloromethylstyrene, said copolymer (B) comprising 30% by weight or less of copolymerized styrene, and having an intrinsic viscosity of 0.2 to 1.3 dl/g as measured in toluene at 30.degree. C.; (C) a crosslinking agent reactive with the glycidyl group or the chloromethyl group in the copolymer (B) selected from (C.sub.I) a metallic oxide and (C.sub.II) an amine compound; and (D) 0.2 to 7 parts by weight, per 100 parts by weight of the rubber (A), of sulfur. This rubber composition has a good processability and can give a vulcanizate having excellent physical properties.
    • 一种橡胶组合物,其包含(A)100重量份的橡胶; (B)5〜50重量份含有含缩水甘油基单体或氯甲基苯乙烯的低分子量二烯共聚物,所述共聚物(B)含有30重量%以下的共聚苯乙烯,特性粘度为0.2〜 在30℃下在甲苯中测量为1.3dl / g。 (C)选自(CI)金属氧化物和(CII)胺化合物的共聚物(B)中与缩水甘油基或氯甲基反应的交联剂; 和(D)相对于100重量份橡胶(A)为0.2〜7重量份的硫。 该橡胶组合物具有良好的加工性,并且可以得到具有优异物理性能的硫化橡胶。