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:
Jan. 07, 2020
Filed:
Jun. 17, 2016
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventor:
Steven P. Haynie, Dayton, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 6/00 (2006.01); C08J 11/02 (2006.01); B01D 47/05 (2006.01); B01D 53/00 (2006.01); C08F 10/02 (2006.01); C08F 6/10 (2006.01);
U.S. Cl.
CPC ...
C08F 6/005 (2013.01); B01D 47/05 (2013.01); B01D 53/002 (2013.01); C08F 6/00 (2013.01); C08F 6/10 (2013.01); C08F 10/02 (2013.01); C08J 11/02 (2013.01);
Abstract
A process, for recovery of unreacted olefin monomer(s) from a particulate product of an olefin polymerization reactor, the particulate polymer product is supplied to a degassing vessel, where the particulate product is countercurrently contacted with at least a first gaseous stripping stream, which includes at least 5% by weight unreacted olefin monomer, and then with an inert gas stream under conditions effective to strip hydrocarbon impurities from the polymer product and produce a stripped polymer product, is provided.