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    • 86. 发明授权
    • Rubber composition
    • 橡胶组成
    • US5115006A
    • 1992-05-19
    • US642558
    • 1991-01-18
    • Hiroyuki WatanabeKohkichi NoguchiShuichi AkitaKumiko Kohtaki
    • Hiroyuki WatanabeKohkichi NoguchiShuichi AkitaKumiko Kohtaki
    • C08C19/44C08K5/17
    • C08C19/44C08K5/17
    • A rubber composition capable of giving a vulcanized rubber having improved rebound and elongation at break. The composition consists essentially of(1) 100 parts by weight of a rubber component composed of (a) 10 to 100% by weight of a modified conjugated diene polymer obtained by reacting a conjugated diene polymer having an alkali metal and/or an alkaline earth metal bonded thereto with a compound containing the ##STR1## bond in which M represents an oxygen or sulfur atom in the molecule, said modified conjugated diene polymer consisting essentially of 50 to 100% by weight of at least one C.sub.4 -C.sub.12 conjugated diene monomer and 0 to 50% by weight of an aromatic vinyl monomer, the amount of said compound bonded being at least 0.1 mole per mole of said polymer, and (b) 90 to 0% by weight of at least one rubber selected from the group consisting of styrene-butadiene copolymer rubber, styrene-isoprene copolymer rubber, polybutadiene rubber, polyisoprene rubber, butadiene-isoprene copolymer rubber, polyalkenamers and natural rubber, and(2) 0.01 to 1 part by weight of at least one amine selected from the group consisting of aliphatic primary amines and alicyclic primary amines.
    • 能够提供硫化橡胶的橡胶组合物,其具有改善的回弹和断裂伸长率。 该组合物基本上由(1)100重量份的橡胶组分组成,该橡胶组分由(a)10至100重量%的改性共轭二烯聚合物组成,所述改性共轭二烯聚合物通过使具有碱金属和/或碱土金属的共轭二烯聚合物 金属与其中M表示分子中的氧或硫原子的含有键的化合物键合,所述改性共轭二烯聚合物基本上由50至100重量%的至少一种C 4 -C 12共轭二烯单体和 0至50重量%的芳族乙烯基单体,所述键合的化合物的量为每摩尔所述聚合物至少0.1摩尔,和(b)90至0重量%的至少一种选自以下的橡胶: 苯乙烯 - 丁二烯共聚物橡胶,苯乙烯 - 异戊二烯共聚物橡胶,聚丁二烯橡胶,聚异戊二烯橡胶,丁二烯 - 异戊二烯共聚物橡胶,聚烯烃和天然橡胶,和(2)0.01至1重量份的至少一种胺 由脂族伯胺和脂环族伯胺组成的组。