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    • 54. 发明授权
    • Process for production of rubber composition
    • 橡胶组合物生产工艺
    • US6077899A
    • 2000-06-20
    • US952486
    • 1997-11-19
    • Fumito YatsuyanagiHiroyuki KaidoTetsuji Kawazura
    • Fumito YatsuyanagiHiroyuki KaidoTetsuji Kawazura
    • C08L15/00C08L9/06C08L9/00
    • C08L15/00C08K3/04C08L9/00
    • (i) A starting rubber (A) comprising a terminal-modified and/or coupled diene rubber and having an average glass transition temperature TgA (.degree. C.) is mixed with a specific amount of the reinforcing agent are mixed at a temperature of at least 135.degree. C., followed by adding a starting rubber (B) comprising a terminal unmodified diene rubber and having a specific average glass transition temperature TgB (.degree. C.), and the remaining reinforcing agent and a softening agent; (ii) a starting diene rubber (A') having a specific weight average molecular weight Mw(A') and average glass transition temperature TgA' (.degree. C.) is contacted with a reinforcing agent, followed by adding a starting diene rubber (B') having a specific weight average molecular weight Mw(B) and average glass transition temperature TgB' (.degree. C.), and a softening agent to produce a rubber composition; or (iii) 100 parts by weight of a starting rubber comprising a starting rubber (A") comprising 20 to 100% by weight of a terminal-modified and/or coupled diene rubber and a starting rubber (B") comprising a terminal-unmodified and/or uncoupled rubber are mixed with a specific carbon black (X) in specific amounts at a temperature of at least 135.degree. C., followed by adding the starting rubber (B") and the remaining carbon black and a softening agent.
    • PCT No.PCT / JP96 / 03635 Sec。 371日期:1997年11月19日 102(e)日期1997年11月19日PCT Filted 1996年12月12日PCT公布。 第WO97 / 48766号公报 日期1997年12月24日(i)将具有平均玻璃化转变温度TgA(℃)的末端改性和/或偶合二烯橡胶的起始橡胶(A)与特定量的增强剂混合 在至少135℃的温度下混合,然后加入包含末端未改性二烯橡胶并具有比平均玻璃化转变温度TgB(℃)的起始橡胶(B),剩余的增强剂和软化 代理人 (ii)具有比重重均分子量Mw(A')和平均玻璃化转变温度TgA'(℃)的起始二烯橡胶(A')与增强剂接触,然后加入起始二烯橡胶( 具有比重重均分子量Mw(B)和平均玻璃化转变温度TgB'(℃)的软化剂B')和软化剂以产生橡胶组合物; 或(iii)100重量份的起始橡胶,其包含起始橡胶(A“),其包含20至100重量%的末端改性和/或偶合的二烯橡胶和起始橡胶(B”),其包含 末端未改性和/或未偶联的橡胶与特定碳黑(X)在至少135℃的温度下以特定量混合,随后加入起始橡胶(B“)和剩余的炭黑和 软化剂。