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. 30, 2013
Filed:
May. 08, 2012
William A. Matthews, Victoria, TX (US);
Michael I. Hurdle, Rosenberg, TX (US);
Gerardo Corona, Pearland, TX (US);
Dung P. Le, Sugar Land, TX (US);
Semra Gercek, Houston, TX (US);
George W. Schwarz, Jr., Charleston, WV (US);
William A. Matthews, Victoria, TX (US);
Michael I. Hurdle, Rosenberg, TX (US);
Gerardo Corona, Pearland, TX (US);
Dung P. Le, Sugar Land, TX (US);
Semra Gercek, Houston, TX (US);
George W. Schwarz, Jr., Charleston, WV (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
Catalyst feed systems and processes utilizing such systems are described herein. Some embodiments disclosed herein relate to a process for improving the flowability of catalyst in a catalyst feed system, including providing a catalyst feed vessel with at least one heat exchange system for maintaining the catalyst system temperature below a critical flow temperature. Also disclosed is a catalyst feed system for the polymerization of olefins including a catalyst feed vessel; and a heat exchange system for maintaining a temperature of a catalyst within the catalyst feed vessel. Additionally disclosed is a process for polymerization of olefins including maintaining a supported catalyst in a catalyst feed vessel below a critical flow temperature of the catalyst; feeding the catalyst to a polymerization reactor; and contacting the catalyst with an olefin to form a polyolefin.