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:
Aug. 05, 2003
Filed:
Dec. 19, 2001
Applicant:
Inventors:
Paul Nguyen, London, CA;
Carl Walter Von Hellens, Bright's Grove, CA;
Assignee:
Bayer Inc., Sarnia, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/04 ;
U.S. Cl.
CPC ...
C08F 8/04 ;
Abstract
Disclosed herein is a process for the production of hydrogenated nitrile rubber. The appearance of corrosion in the plant equipment in which hydrogenated nitrile rubber is produced is due to the unexpected presence of relatively large amounts of HCl, generated, surprisingly, by the hydro-dehalogenation of the monochlorobenzene solvent under the reaction conditions. The addition of a compatible weakly basic additive, such as Epoxidized Soy Bean Oil (ESBO), to the reaction mixture has alleviated this serious problem.