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, 2012
Filed:
Nov. 23, 2010
Thomas C. Bedard, Ringwood, NJ (US);
Thomas David Burleigh, Socorro, NM (US);
Larry K. Hall, Easton, PA (US);
Joseph Kimler, Yardville, NJ (US);
Joseph W. Scheblein, Flemington, NJ (US);
Michael Y. Chiang, Whitehouse Station, NJ (US);
Thomas C. Bedard, Ringwood, NJ (US);
Thomas David Burleigh, Socorro, NM (US);
Larry K. Hall, Easton, PA (US);
Joseph Kimler, Yardville, NJ (US);
Joseph W. Scheblein, Flemington, NJ (US);
Michael Y. Chiang, Whitehouse Station, NJ (US);
Lonza, Inc., Allendale, NJ (US);
Abstract
Disclosed are quaternary ammonium salts containing non-halogen anions such as carbonates, bicarbonates, phosphates, glycolates and mixtures thereof as conversion coatings or additives imparting anti-corrosive properties to paints. 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 and to metal substrates having these anticorrosive coatings.