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:
Apr. 09, 2002
Filed:
Aug. 14, 2000
Applicant:
Inventors:
Michael K. Laughner, Lake Jackson, TX (US);
Debra J. Mangold, Lake Jackson, TX (US);
Deepak R. Parikh, Lake Jackson, TX (US);
Assignee:
DuPont Dow Elastomers LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/642 ; C08F 4/643 ; C08F 4/52 ;
U.S. Cl.
CPC ...
C08F 4/642 ; C08F 4/643 ; C08F 4/52 ;
Abstract
Ethylene-based polymer blends having an MWD of at least about 2 are made in a single reactor using a mixed constrained geometry catalyst (CGC) system. The process comprises the steps of contacting under polymerization conditions and in a single reaction vessel (i) ethylene, (ii) at least one C -C (&agr;-olefin, (iii) optionally, at least one polyene, and (iv) a mixed CGC system.