发明名称 |
Methods for preparing a rare-earth cis-1,4-polybutadiene rubber with a controlled molecular weight distribution |
摘要 |
Disclosed herein are a method for preparing a cis-1,4-polybutadiene with a controlled molecular weight distribution, comprising polymerizing butadiene monomers using a rare-earth catalyst system comprising: (a) at least one aliphatic hydrocarbon-soluble organometallic compound comprising at least one metal element chosen from the elements of atomic numbers 51-71 in the periodic table; (b) at least one organoaluminum compound of the formula: AlR<SUP>1</SUP>R<SUP>2</SUP><SUB>2</SUB>, (c) at least one aliphatic hydrocarbon-soluble halogen-containing compound; (d) optionally at least one alkylaluminum alkoxide; and (e) at least one conjugated double bond-containing organic compound, and methods of preparing the rare-earth catalyst system.
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申请公布号 |
US7288611(B2) |
申请公布日期 |
2007.10.30 |
申请号 |
US20040949250 |
申请日期 |
2004.09.27 |
申请人 |
CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES |
发明人 |
JIANG LIANSHENG;ZHANG XUEQUAN;DONG WEIMIN;LIU XICHUN;BI JIFU |
分类号 |
C08F4/52;C08F2/02;C08F36/06;D06L1/00 |
主分类号 |
C08F4/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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