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:
Jul. 14, 2015
Filed:
Sep. 09, 2013
Lonza Inc., Allendale, NJ (US);
Larry K. Hall, Easton, PA (US);
Joseph William Scheblein, Hunterdon, NJ (US);
Michael Yao-chi Chiang, Whitehouse Station, NJ (US);
Joseph Kimler, Yardville, NJ (US);
LONZA INC., Allendale, NJ (US);
Abstract
Disclosed are quaternary ammonium salts containing non-halogen anions (e.g., quaternary ammonium carbonates, bicarbonates, and mixtures thereof) as anti-corrosive agents. The invention relates to a method for inhibiting the corrosion of metal surfaces by applying a composition containing one or more quaternary ammonium carbonate or bicarbonate. The disclosure is also directed to anti-corrosive coatings for metal substrates containing these compounds, to metal substrates having these anticorrosive coatings, and to aqueous cleaning solutions containing these compounds.