申请人:THE YOKOHAMA RUBBER CO., LTD.
公开号:EP0831124A1
公开(公告)日:1998-03-25
A carbon-containing rubber composition containing a rubber composition containing carbon black, obtained by coagulating, dehydrating, and drying a rubber latex mixture containing a latex of at least one starting rubber A having an average glass transition temperature TgA of -120°C to -15°C, carbon black, and part of a softening agent, mixed in an internal mixer with a starting rubber B and part of the softening agent, with a ratio FA/FB of the concentration FA of carbon black in the copolymer in the rubber latex mixture with the concentration FB of carbon black in the copolymer after kneading by the hermetic mixture being 1.2 to 3.0 and a rubber composition containing carbon black comprising a starting rubber A comprising a polymer having functional groups represented by formula (I)
〉C = N+〈 (I)
bonded with a polymer chain directly or through another atomic group or a terminal modified diene-based polymer first brought into contact with carbon black, then blended with a starting rubber B comprising a diene based stock rubber.
一种含碳橡胶组合物,包含一种含炭黑的橡胶组合物,通过凝结、脱水和干燥橡胶胶乳混合物获得,该橡胶胶乳混合物包含至少一种平均玻璃化转变温度 TgA 为-120°C 至-15°C 的起始橡胶 A 的胶乳、炭黑、和部分软化剂,在内部混合器中与起始橡胶 B 和部分软化剂混合,橡胶胶乳混合物中共聚物的炭黑浓度 FA 与密封混合物捏合后共聚物的炭黑浓度 FB 之比 FA/FB 为 1.2 至 3.0,以及含有炭黑的橡胶组合物,该组合物包括起始橡胶 A,该起始橡胶 A 包含具有由式 (I) 表示的官能团的聚合物
〉C=N+〈 (I)
直接或通过另一原子团与聚合物链键合的聚合物,或首先与炭黑接触的末端改性二烯基聚合物,然后与由二烯基浆料橡胶组成的起始橡胶 B 混合。