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:
Nov. 10, 1987
Filed:
Jun. 30, 1986
Applicant:
Inventors:
Daniel A Meier, Naperville, IL (US);
Michael J Groshans, Lombard, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
427239 ; 25238952 ; 2523892 ; 106 1412 ; 427435 ;
Abstract
A method for eliminating or reducing dome staining during the pasteurization of aluminum beverage cans involves the addition of zinc, orthophosphate, a zinc stabilizing polymer and, optionally, organophosphonate corrosion inhibitors and/or other known corrosion inhibitors. The zinc stabilizing polymer contains at least 25 weight percent acrylic acid, methacrylic acid, their water soluble salts, or admixtures thereof. These polymers may be homopolymers, copolymers, terpolymers, and above.