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. 24, 2012
Filed:
Oct. 19, 2011
Rainer Kolb, Kingwood, TX (US);
James M. Farley, League City, TX (US);
John F. Szul, Hurricane, WV (US);
Mark P. Ossowski, Bridgewater, NJ (US);
Rainer Kolb, Kingwood, TX (US);
James M. Farley, League City, TX (US);
John F. Szul, Hurricane, WV (US);
Mark P. Ossowski, Bridgewater, NJ (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
The invention generally provides for methods for controlling polymer properties. In particular, invention provides for methods for controlling the comonomer composition distribution of polyolefins such as ethylene alpha-olefin copolymers by altering at least one or more of the following parameters: the molar ratio of hydrogen to ethylene, the molar ratio of comonomer to ethylene, the partial pressure of ethylene, and the reactor temperature without substantially changing the density and/or the melt index of the copolymer.