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:
Sep. 23, 2014
Filed:
Feb. 03, 2011
Applicant:
Yves Lacombe, Calgary, CA;
Inventor:
Yves Lacombe, Calgary, CA;
Assignee:
Nova Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/27 (2006.01); G01N 21/35 (2014.01); G01N 21/85 (2006.01);
U.S. Cl.
CPC ...
G01N 21/359 (2013.01); G01N 21/3563 (2013.01); G01N 21/3577 (2013.01); G01N 21/85 (2013.01); G01N 21/274 (2013.01);
Abstract
The present invention provides a method to calibrate a NIR analyzer to measure monomer concentrations at one or more locations in a reactor system. The regression coefficients for the NIR analyzer are transferable between reactors using the same process (solution polymerization to solution polymerization) and may be used to control the reaction, or calibrate flow meters on line.