发明名称 |
Procatalyst composition with alkoxyalkyl 2-propenoate internal electron donor and polymer from same |
摘要 |
Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions contain an internal electron donor of an alkoxyalkyl 2-propenoate and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity and polymer stiffness. Polypropylene homopolymer produced from the present catalyst composition has a xylene solubles content less than 4 wt % and a TMF greater than 172.0° C. |
申请公布号 |
US9382342(B2) |
申请公布日期 |
2016.07.05 |
申请号 |
US201113996300 |
申请日期 |
2011.12.02 |
申请人 |
W. R. Grace & Co.-Conn. |
发明人 |
Chen Linfeng;Leung Tak W.;Tao Tao |
分类号 |
C08F4/76;C08F4/52;C08F110/06;C08F10/00 |
主分类号 |
C08F4/76 |
代理机构 |
Lerner, David, Littenberg, Krumholz & Mentlik, LLP |
代理人 |
Lerner, David, Littenberg, Krumholz & Mentlik, LLP |
主权项 |
1. A polymeric composition comprising:
a propylene-based polymer comprising an alkoxyalkyl 2-propenoate. |
地址 |
Columbia MD US |