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. 25, 1979
Filed:
Dec. 30, 1977
Applicant:
Inventor:
James D Anderson, Ambler, PA (US);
Assignee:
Amchem Products, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11G / ;
U.S. Cl.
CPC ...
252149 ; 252 794 ; 252151 ; 252390 ; 252391 ; 252394 ; 252395 ; 134-3 ; 134 41 ; 252180 ; 252 80 ;
Abstract
Compositions comprising mixtures of a dithiocarbamic acid derivative and a sulfonium compound such as triphenylsulfonium chloride provide effective corrosion inhibition in acid treatment of metal in the presence of a copper complexing agent such as a thiourea.