Inventors:
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
Assignee:
Lonza, Inc. - Allendale NJ
International Classification:
C23C 8/40
C23C 22/00
B05D 3/10
B05D 7/14
C23F 11/14
US Classification:
148240, 148 23, 148320, 148400, 427327, 427328, 427333, 427410, 4274192, 252390, 252391, 252392, 252394, 252401, 252403, 252405, 422 7, 422 12, 422 13, 106 1415, 106 1431, 507939
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.