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. 03, 2015
Filed:
Dec. 20, 2012
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Christopher B. Friedersdorf, Kingwood, TX (US);
Trevan D. MacArthur, Houston, TX (US);
Douglas A. Berti, Houston, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 210/06 (2006.01); C08F 2/06 (2006.01); C08J 11/02 (2006.01); B01D 5/00 (2006.01);
U.S. Cl.
CPC ...
C08F 210/06 (2013.01); B01D 5/0003 (2013.01); B01D 5/0051 (2013.01); C08F 2/06 (2013.01); C08J 11/02 (2013.01);
Abstract
This invention relates to a blocked process for producing polymers of high and low molecular weights utilizing the same polymer separator. The separator is operated in a different mode depending on the molecular weight of the polymer being produced such that the separation system is operated in flash mode for the separation of low molecular weight polymers and operated in lower critical solution temperature (LCST) mode for the separation of high molecular weight polymers.