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:
Nov. 14, 2023
Filed:
Aug. 20, 2020
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Douglas J. Picou, Baton Rouge, LA (US);
Keith W. Trapp, Kingwood, TX (US);
Asha C. Quant, Houston, TX (US);
Ariana L. Poindexter, Houston, TX (US);
Maxwell T. Mcgee, Baton Rouge, LA (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/00 (2006.01); B01J 19/06 (2006.01); B01J 19/24 (2006.01); C08F 2/01 (2006.01); C08F 2/14 (2006.01);
U.S. Cl.
CPC ...
B01J 19/0033 (2013.01); B01J 19/06 (2013.01); B01J 19/245 (2013.01); B01J 19/2455 (2013.01); C08F 2/01 (2013.01); B01J 2219/0004 (2013.01); B01J 2219/00033 (2013.01); B01J 2219/00198 (2013.01); B01J 2219/00231 (2013.01);
Abstract
A process for maintaining an optimum polymerization process in a continuous loop polymerization reactor by driving a catalyst feed range set-point around a bad catalyst set-point range using a bad catalyst feed rate program to vary the catalyst feed rate for differing periods of time between previously determined good catalyst feed rates.