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:
Sep. 13, 2016
Filed:
Nov. 08, 2013
Applicant:
W.r. Grace & Co.—conn., Columbia, MD (US);
Inventors:
Linfeng Chen, Missouri City, TX (US);
Tak W. Leung, Houston, TX (US);
Tao Tao, Houston, TX (US);
Kuanqiang Gao, Pearland, TX (US);
James X. Shu, Houston, TX (US);
Assignee:
W. R. Grace & Co.—Conn., Columbia, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 110/06 (2006.01); C08F 10/06 (2006.01);
U.S. Cl.
CPC ...
C08F 110/06 (2013.01); C08F 10/06 (2013.01);
Abstract
Disclosed are procatalyst compositions having an internal electron donor which includes a substituted amide ester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution.