Patent ID: 6863718

Claim:
A method of treating metal pigment particles for inhibiting their reaction with water, comprising: contacting a composition comprising metal pigment particles with a salt having the following formula wherein a ranges from 0.25 to 2.0, b ranges from 0.0 to 1.75, and a+b=2.0, R is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, and alkylaryl and comprises at least 6 carbon atoms; R 1 comprises at least six carbon atoms and is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, and alkylaryl; and X and Y are each independently either hydrogen or a moiety having from 1 to 20 carbon atoms selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, and alkylaryl.