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:
May. 10, 2011
Filed:
May. 19, 2009
Gabor Kiss, Hampton, NJ (US);
Robert Patrick Reynolds, Jr., Clinton, NJ (US);
John W. Chu, Neshanic Station, NJ (US);
Patrick Brant, Seabrook, TX (US);
James Richardson Lattner, LaPorte, TX (US);
Gabor Kiss, Hampton, NJ (US);
Robert Patrick Reynolds, Jr., Clinton, NJ (US);
John W. Chu, Neshanic Station, NJ (US);
Patrick Brant, Seabrook, TX (US);
James Richardson Lattner, LaPorte, TX (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Provided are methods of producing polymers with broadened molecular weight and/or composition distribution in a continuous homogeneous polymerization system utilizing reactor temperature gradients, reactor polymer concentration gradients, monomer concentration gradients, catalyst concentration gradients, and combinations thereof in the polymerization reactor. Such methods are particularly suitable when utilizing metallocene catalysts and other single-site catalysts, which generally produce polymers with narrow molecular weight and composition distribution.