发明名称 |
Bis (salicylaldiminato) titanium complex catalysts, highly syndiotactic polypropylene by a chain-end control mechanism, block copolymer containing this |
摘要 |
Bis(salicylaldiminato)titanium complex with optionally substituted phenyl or cyclohexyl on nitrogen catalyzes highly syndiospecific polymerization of propylene. Syndiotactic polypropylene with defects of the type rmr having [rrrr] content greater than 0.70 and block copolymer containing block(s) of the syndiotactic polypropylene and block(s) of poly(ethylene-co-propylene) and/or poly(alpha-olefin-co-propylene) are obtained. Certain of the catalysts provide living polymerization. Living olefin polymers and olefin terminated oligomers and polymers are also products.
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申请公布号 |
US7119154(B2) |
申请公布日期 |
2006.10.10 |
申请号 |
US20040891114 |
申请日期 |
2004.07.15 |
申请人 |
CORNELL RESEARCH FOUNDATION, INC. |
发明人 |
COATES GEOFFREY W.;TIAN JUN |
分类号 |
C07F7/28;C08F4/64;C07F7/00;C08F4/642;C08F4/659;C08F4/6592;C08F10/00;C08F110/06;C08F210/06;C08F297/06;C08F297/08 |
主分类号 |
C07F7/28 |
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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