Invention Grant
- Patent Title: Branched crystalline polypropylene
- Patent Title (中): 分支结晶聚丙烯
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Application No.: US10683593Application Date: 2003-10-10
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Publication No.: US07439312B2Publication Date: 2008-10-21
- Inventor: Palanisamy Arjunan , Thottinal A. Mathew , Patrick Brant , James C. Vizzini
- Applicant: Palanisamy Arjunan , Thottinal A. Mathew , Patrick Brant , James C. Vizzini
- Applicant Address: US TX Houston
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Houston
- Main IPC: C08F4/44
- IPC: C08F4/44

Abstract:
Branched crystalline polypropylene compositions and methods for the preparation of branched crystalline polypropylene compositions are provided. For example, described herein is a process of preparing a branched crystalline polypropylene composition that includes combining two or more different metallocene catalyst compounds with a polymerization medium that includes propylene, for a time sufficient to provide branched crystalline polypropylene that has from 0.0 wt % to 2.0 wt % ethylene and a heat of fusion of 70 J/g or more.
Public/Granted literature
- US20040127649A1 Branched crystalline polypropylene Public/Granted day:2004-07-01
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