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. 26, 2011
Filed:
Jul. 10, 2008
Robert O. Hagerty, La Porte, TX (US);
Michael E. Muhle, Kingwood, TX (US);
Agapios K. Agapiou, Humble, TX (US);
Chi-i Kuo, Humble, TX (US);
Mark G. Goode, Hurricane, WV (US);
F. David Hussein, Cross Lanes, WV (US);
Richard B. Pannell, Kingwood, TX (US);
John F. Szul, Hurricane, WV (US);
Robert O. Hagerty, La Porte, TX (US);
Michael E. Muhle, Kingwood, TX (US);
Agapios K. Agapiou, Humble, TX (US);
Chi-I Kuo, Humble, TX (US);
Mark G. Goode, Hurricane, WV (US);
F. David Hussein, Cross Lanes, WV (US);
Richard B. Pannell, Kingwood, TX (US);
John F. Szul, Hurricane, WV (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
Embodiments of the present invention relate to measuring and controlling static in a gas phase reactor polymerization. In particular, embodiments relate to monitoring carryover static in an entrainment zone during gas phase polymerization to determine the onset of reactor discontinuity events such as chunking and sheeting. Embodiments also relate to monitoring carryover static to determine the need for effective additions of continuity additives that minimize reactor static activity and thereby preventing discontinuity events.