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:
Apr. 07, 2015
Filed:
Mar. 18, 2013
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Kevin W. Lawson, Houston, TX (US);
Rodney S. Smith, Edinburgh, GB;
Assignee:
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/01 (2006.01); C08F 2/38 (2006.01); B01J 19/18 (2006.01); C08F 2/00 (2006.01); C08F 210/16 (2006.01);
U.S. Cl.
CPC ...
C08F 2/01 (2013.01); C08F 2/00 (2013.01); Y10S 526/905 (2013.01);
Abstract
In a process for making a copolymer, a first product stream comprising a semi-crystalline polymer and a chain terminating agent is produced in a first reactor system. The first product is provided to a second reactor system wherein a low crystallinity polymer is produced in the presence of the semi-crystalline polymer. At least a portion of the chain terminating agent is removed from the second reactor system by an in-situ process.