发明名称 |
METAL COMPLEXES OF SALAN-TYPE LIGANDS AND USES THEREOF AS CATALYSTS FOR POLYMERIZATION OF ALPHA-OLEFINS |
摘要 |
Use of homogeneous catalytic systems which include as a pre-catalyst a complex of a group 4 metal and a Salan ligand in the polymerization of alpha-olefins, is disclosed. The Salan ligand is characterized by a sequential diamino-containing skeleton unit which is non-symmetric, and the pre-catalysts can also be such that are devoid of a symmetry element. The disclosed polymerization results in alpha-olefm polymers such as polypropylene which are characterized by high levels of tacticity. Also disclosed are novel Salan ligands and novel complexes thereof with group 4 metals. |
申请公布号 |
WO2012098521(A1) |
申请公布日期 |
2012.07.26 |
申请号 |
WO2012IB50267 |
申请日期 |
2012.01.19 |
申请人 |
RAMOT AT TEL-AVIV UNIVERSITY LTD.;KOL, MOSHE;PRESS, KONSTANTIN |
发明人 |
KOL, MOSHE;PRESS, KONSTANTIN |
分类号 |
C08F10/00;C07C213/00;C07F7/00;C08F4/642;C08F4/659 |
主分类号 |
C08F10/00 |
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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