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:
Sep. 17, 1985
Filed:
Sep. 23, 1983
Applicant:
Inventors:
James D Anderson, Fort Washington, PA (US);
Sandra K Seigle, Phoenixville, PA (US);
Assignee:
Amchem Products, Ambler, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C23G / ;
U.S. Cl.
CPC ...
252149 ; 134 41 ; 252 86 ; 252146 ; 252148 ;
Abstract
Acid cleaning compositions containing an inhibitor for cleaning metal surfaces, processes for cleaning metal surfaces therewith, and concentrates useful in forming the acid cleaning compositions. The present acid cleaning compositions contain an acid, a Mannich base, a thiourea, an alkyl trimethyl ammonium halide and/or an alkyl (C.sub.8 -C.sub.9) phenoxypolyethoxy ethanol, and a nonionic surfactant which is a condensate of poly(oxyethylene) and poly(oxypropylene) groups.