发明名称 |
Diene rubber, process for production thereof, rubber compositions, process for producing the same, and crosslinked rubbers |
摘要 |
A diene rubber (A) having a weight average molecular weight (Mw) of 100,000 to 3,000,000, an Mw/number average molecular weight (Mn) ratio of 1.30 to 2.50, and an Mw/peak top molecular weight (Mp) ratio 0.70 to 1.30. A rubber composition comprising the diene rubber (A) and a diene rubber (B) having an Mw of 2,000 to 90,0000 and/or an oil extender for rubber has good processability and can give a rubber vulcanizate having high tensile strength and good abrasion resistance. The diene rubber (A) is produced by conducting a living polymerization of diene monomer in a hydrocarbon solvent; adding a polymerization stopper to a polymerization mixture at a conversion of 5 to 98% to deactivate 10 to 90% by mole of active terminals present as of the initiation of polymerization; and finally adding a polymerization stopper to completely terminate the polymerization reaction.
|
申请公布号 |
US6984706(B2) |
申请公布日期 |
2006.01.10 |
申请号 |
US20050507835 |
申请日期 |
2005.03.24 |
申请人 |
ZEON CORPORATION |
发明人 |
KARATO TAKESHI;KOMATU MASAAKI;TAKASE KAZUHIRO |
分类号 |
B60C1/00;C08F36/04;B29C35/02;B29K9/00;B29K105/06;B29K105/24;C08F2/40;C08F2/42;C08F36/06;C08F236/10;C08K3/04;C08K3/36;C08L9/00;C08L9/06 |
主分类号 |
B60C1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|