发明名称 |
Styrene-butadiene random copolymer and process for the production thereof |
摘要 |
Styrene-butadiene random copolymers having an average vinyl content of at least 70%, a breadth of the distribution of vinyl contents of at least 20%, a Mooney viscosity (ML1+4, 100 DEG C.) of 10 to 150, and a styrene content of about 3 to 30% by weight. They are prepared by copolymerizing styrene and butadiene in a hydrocarbon solvent in the presence of an organolithium initiator and a Lewis base and, if necessary, an anionic surface active agent containing -SO3M or -OSO3M (wherein M is Na, K, Rb or Cs) under temperature-raising conditions. They are rubber materials having low rolling resistance and high wet skid resistance.
|
申请公布号 |
US4367325(A) |
申请公布日期 |
1983.01.04 |
申请号 |
US19810254517 |
申请日期 |
1981.04.15 |
申请人 |
JAPAN SYNTHETIC RUBBER CO., LTD. |
发明人 |
TAKEUCHI, YASUMASA;OHSHIMA, NOBORU;SAKAKIBARA, MITSUHIKO;TSUTSUMI, FUNIO |
分类号 |
C08F2/00;C08F2/04;C08F2/06;C08F4/00;C08F4/42;C08F4/48;C08F236/00;C08F236/10;(IPC1-7):C08F236/10 |
主分类号 |
C08F2/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|