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:
Jul. 03, 2007
Filed:
Oct. 15, 2003
Fred D. Ehrman, Houston, TX (US);
Pradeep P. Shirodkar, Kingwood, TX (US);
Mark Bradley Davis, Hurricane, TX (US);
Daniel P. Zilker, Jr., South Charleston, WV (US);
Porter C. Shannon, Seabrook, TX (US);
Fred D. Ehrman, Houston, TX (US);
Pradeep P. Shirodkar, Kingwood, TX (US);
Mark Bradley Davis, Hurricane, TX (US);
Daniel P. Zilker, Jr., South Charleston, WV (US);
Porter C. Shannon, Seabrook, TX (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
Methods of controlling the flow index and/or molecular weight split of a polymer composition are disclosed. The method of producing a polymer composition in one embodiment comprises incorporating a high molecular weight polymer into a low molecular weight polymer to form the polymer composition in a single polymerization reactor in the presence of polymerizable monomers, a bimetallic catalyst composition and at least one control agent; wherein the control agent is added in an amount sufficient to control the level of incorporation of the high molecular weight polymer, the level of low molecular weight polymer, or both. Examples of control agents include alcohols, ethers, amines and oxygen.