| 发明名称 |
ENHANCED PROCATALYST COMPOSITION AND PROCESS |
| 摘要 |
Disclosed herein are processes for preparing procatalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions improve catalyst selectivity and also increase the bulk density of the formant polymer. |
| 申请公布号 |
US2014274668(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201414293468 |
申请日期 |
2014.06.02 |
| 申请人 |
W. R. Grace & Co.-Conn. |
发明人 |
Gonzalez Kelly;Williams Clark C.;Chen Linfeng |
| 分类号 |
C08F10/06 |
主分类号 |
C08F10/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A procatalyst composition comprising:
particles comprising a magnesium moiety, a titanium moiety, and an internal electron donor comprising a substituted phenylene aromatic diester; and the particles having a D50 from about 10 μm to about 25 μm. |
| 地址 |
Columbia MD US |
