发明名称 |
Polybutadiene and process for producing the same |
摘要 |
Modified polybutadiene having a high-cis and low-trans structure with a moderate 1,2-structure content and exhibiting improved characteristics such as cold flow properties, which is obtained by modifying starting polybutadiene having a Tcp/ML1+4 ratio (Tcp: 5% toluene solution viscosity at 25° C.ML1+4: Mooney viscosity at 100° C.) of 2.5 or more in the presence of a transition metal catalyst.
|
申请公布号 |
US6664347(B2) |
申请公布日期 |
2003.12.16 |
申请号 |
US20020234391 |
申请日期 |
2002.09.05 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
SUZUKI MICHINORI;MURAKAMI MASATO |
分类号 |
C08C19/26;C08F4/44;(IPC1-7):C08F4/06;C08F4/72;C08F4/02;C07F7/00 |
主分类号 |
C08C19/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|