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:
Dec. 01, 2015
Filed:
Nov. 13, 2013
Applicant:
Nova Chemicals (International) S.a., Fribourg, CH;
Inventors:
William Joseph Tchir, Calgary, CA;
Eric Cheluget, Prospect Heights, IL (US);
Assignee:
NOVA Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/60 (2006.01); C08F 2/00 (2006.01); C08F 210/00 (2006.01); G06F 19/00 (2011.01); C08F 110/02 (2006.01);
U.S. Cl.
CPC ...
G06F 19/702 (2013.01); C08F 110/02 (2013.01);
Abstract
The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.