| 发明名称 |
PROCESS FOR THE PREPARATION OF PROPYLENE TERPOLYMERS AND TERPOLYMERS OBTAINED THEREBY |
| 摘要 |
Propylene terpolymers are prepared by polymerizing propylene, ethylene and an alpha-olefin selected from the group of C4-C8 alpha-olefins in the presence of a catalyst system obtained by contacting a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other selected from 1,3 diethers, an aluminum hydrocarbyl compound, and optionally an external electron donor compound. |
| 申请公布号 |
US2016032032(A1) |
申请公布日期 |
2016.02.04 |
| 申请号 |
US201414774591 |
申请日期 |
2014.03.03 |
| 申请人 |
BASELL POLIOLEFINE ITALIA S.R.L. |
发明人 |
Galvan Monica;Neumann Andreas;Caputo Tiziana;Squarzoni Stefano;Mazzucco Antonio;Fusco Ofelia;Gaddi Benedetta;Collina Gianni;Biondini Gisella;Cavalieri Claudio;Pantaleoni Roberto |
| 分类号 |
C08F210/06 |
主分类号 |
C08F210/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for the preparation of a propylene terpolymer comprising comonomer units derived from ethylene and from an alpha-olefin selected from the group of C4-C8 alpha-olefins, the process comprising the step of copolymerizing propylene, ethylene and an alpha-olefin selected from the group of C4-C8 alpha-olefins in the presence of a catalyst system comprising the product obtained by contacting the following components:
(a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers, (b) an aluminum hydrocarbyl compound, and (c) optionally an external electron donor compound. |
| 地址 |
Milano IT |
