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:
Jan. 08, 2002
Filed:
Nov. 23, 1998
Applicant:
Inventor:
Roland A. E. Winter, Armonk, NY (US);
Assignee:
Nalco/Exxon Energy Chemicals, L.P., Sugarland, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
C10M / ;
Abstract
Industrial plant streams and processes that contain reactive light olefins such as isoprene and butadiene are plagued with fouling problems due to premature polymerization resulting in significant economic loss. A combination of phenylenediamines with nitroxides is found to be synergistic in its ability to prevent this premature polymerization of reactive light olefins.