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:
Dec. 23, 1980
Filed:
Aug. 02, 1978
Applicant:
Inventor:
William S Tait, St. Louis, MO (US);
Assignee:
Petrolite Corporation, St. Louis, MO (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ; C23F / ;
U.S. Cl.
CPC ...
2523 / ; 106 1412 ; 106 1413 ; 106 1416 ; 148 / ; 252 / ; 252180 ; 422 15 ; 422 16 ; 422 17 ; 422 18 ;
Abstract
This invention relates to a process of inhibiting pitting corrosion which is characterized by the use of synergistic mixtures of organic anodic and cathodic corrosion inhibitors. These synergistic mixtures effectively inhibit pitting corrosion in highly oxygenated systems without the conventional use of heavy metals such as zinc (Zn) or chromium (Cr). This invention also relates to the use of alkoxysilyl alkylene polyamines as pitting corrosion inhibitors.