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:
Jun. 05, 1984
Filed:
May. 16, 1983
Applicant:
Inventors:
Joe C Wilson, Woodhaven, MI (US);
Stanley T Hirozawa, Birmingham, MI (US);
Stephen E Eisenstein, Houston, TX (US);
Jerrold F Maxwell, Matteson, IL (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ; C23F / ;
U.S. Cl.
CPC ...
422 15 ; 252 75 ; 252 76 ; 2523 / ; 252390 ; 252392 ; 422 14 ; 422 16 ; 422 17 ; 422 18 ; 422 19 ;
Abstract
Antifreeze compositions and a process for inhibiting the corrosion of aluminum in contact with aqueous liquids are disclosed. The antifreeze compositions comprise a combination of an alkanolamine, an alkali metal phosphate, a heterocyclic nitrogen compound, as defined, and a conventional corrosion inhibitor in effective corrosion inhibiting amounts. The aqueous liquid can be an alcohol such as ethylene glycol.