The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2021
Filed:
Jan. 12, 2016
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Graham R. Lief, Bartlesville, OK (US);
Eric J. Haschke, Bartlesville, OK (US);
Assignee:
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 6/06 (2006.01); C08F 110/06 (2006.01); B29C 48/05 (2019.01); B29K 23/00 (2006.01); B29L 31/00 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
D01F 6/06 (2013.01); B29C 48/05 (2019.02); C08F 110/06 (2013.01); B29K 2023/10 (2013.01); B29L 2031/731 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01);
Abstract
Disclosed herein are high melt flow polypropylene homopolymers generally characterized by a melt flow rate ranging from 200 g/10 min to 3000 g/10 min, a ratio of Mw/Mn ranging from 2 to 5, and a peak melting point ranging from 138° C. to 151° C. These polypropylene homopolymers can be produced by catalyst systems containing a racemic ansa-bis(indenyl)zirconocene compound, an activator-support, and an organoaluminum co-catalyst.