| 发明名称 |
Catalyst components for the polymerization of olefins |
| 摘要 |
Prepolymerized catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, having average particle size equal to or lower than 30 μm comprising a solid catalyst component comprising magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3-diethers and the other one being selected from esters of aromatic mono or dicarboxylic acids, said solid catalyst component being prepolymerized with an olefin, having from 2 to 10 carbon atoms, to such an extent that the amount of the olefin prepolymer is equal to or lower than 50 g per g of solid catalyst component. |
| 申请公布号 |
US9453088(B2) |
申请公布日期 |
2016.09.27 |
| 申请号 |
US200812735278 |
申请日期 |
2008.12.22 |
| 申请人 |
Basell Poliolefine Italia S.r.l. |
发明人 |
Collina Gianni;Fusco Ofelia |
| 分类号 |
C08F4/20;C08F110/06;B01J27/135;B01J27/138;B01J31/02;B01J31/14;B01J31/26;B01J31/38 |
主分类号 |
C08F4/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Prepolymerized catalyst component for the polymerization of olefins CH2═CHR wherein R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, having an average particle size equal to, or lower than, 30 μm comprising a solid catalyst component which comprises magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3-diethers and the other one being selected from esters of aromatic mono or dicarboxylic acids, said solid catalyst component being prepolymerized with an olefin, having from 2 to 10 carbon atoms, wherein the amount of the olefin polymer so obtained is equal to, or lower than, 50 g per g of solid catalyst component. |
| 地址 |
Milan IT |
