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-olefin 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 |
US2013310529(A1) |
申请公布日期 |
2013.11.21 |
申请号 |
US201213980920 |
申请日期 |
2012.01.19 |
申请人 |
KOL MOSHE;PRESS KONSTANTIN;RAMOT AT TEL-AVIV UNIVERSITY LTD. |
发明人 |
KOL MOSHE;PRESS KONSTANTIN |
分类号 |
C08F4/76;B01J27/24 |
主分类号 |
C08F4/76 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|