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:
May. 04, 2010
Filed:
May. 22, 2009
Applicants:
Alberto Buchelli, Houston, TX (US);
Ronald J. Morris, Friendswood, TX (US);
William G. Todd, Victoria, TX (US);
Anthony Lee Zimmermann, Victoria, TX (US);
Inventors:
Alberto Buchelli, Houston, TX (US);
Ronald J. Morris, Friendswood, TX (US);
William G. Todd, Victoria, TX (US);
Anthony Lee Zimmermann, Victoria, TX (US);
Assignee:
Equistar Chemicals, LP, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/00 (2006.01); C08F 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for solution polymerizing ethylene wherein an ethane purge stream is separated, subjected to high efficiency cryogenic distillation, and a side cut from that distillation recycled to the polymerization process while the overhead and bottoms from that distillation are removed from the polymerization process.