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:
Apr. 21, 1987
Filed:
Sep. 01, 1981
Applicant:
Inventor:
Yulin Wu, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
427386 ; 523456 ; 523463 ;
Abstract
A composition is provided which, when applied to a metal surface, forms a corrosion-inhibiting film thereon. The composition comprises an epoxy resin, an effective amount of a curing agent for the epoxy resin, an onium salt, and a hydrocarbon diluent. The composition optionally further contains an alcohol. The onium salt can be, for example, a quaternary ammonium salt. The composition is applied by contacting the metal surface with the composition. The composition is useful in the treatment of downhole metal surfaces in oil and gas wells to inhibit corrosion of the metal.