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:
Jul. 15, 2003
Filed:
Jul. 13, 2001
Applicant:
Inventors:
Mohsen S. Yeganeh, Piscataway, NJ (US);
Shawn Michael Dougal, Livingston, NJ (US);
Guido Sartori, Milan, IT;
David Craig Dalrymple, Bloomsbury, NJ (US);
Cheayao Zhang, Annandale, NJ (US);
Saul Charles Blum, Edison, NJ (US);
Liza Marie Monette, Whitehouse, NJ (US);
Assignee:
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F 1/112 ; C23F 1/114 ; C23F 1/104 ; C09K 1/508 ; C09K 1/518 ; C09K 1/524 ;
U.S. Cl.
CPC ...
C23F 1/112 ; C23F 1/114 ; C23F 1/104 ; C09K 1/508 ; C09K 1/518 ; C09K 1/524 ;
Abstract
The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compounds substituted with nitrogen, containing functional groups at the 5- or 3, 5-position, typically up to 1000 wppm, to the metal surface.