Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1994-12-01
1996-09-10
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 22R, 106 20R, C09D 1102
Patent
active
055542131
ABSTRACT:
Disclosed are ink compositions comprising water, a colorant, and a phosphite salt of the general formula ##STR1## wherein R, R', R" and R'" can each, independently of each other, be hydrogen, an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group. Also disclosed is a process for preparing an ink composition which comprises admixing water, a colorant, a base, and an acid selected from the group consisting of hypophosphoric acid, hypophosphorous acid, alkyl phosphonic acids, aryl phosphonic acids, alkyl phosphinic acids, aryl phosphinic acids, and mixtures thereof, wherein the pH of the ink is adjusted by a process selected from the group consisting of (a) adding the acid to an aqueous solution containing the base, and (b) adding the base to an aqueous solution containing the acid. Further disclosed are ink compositions comprising water, a colorant, and a salt selected from the group consisting of hypophosphate salts, hypophosphite salts, alkyl phosphite salts, aryl phosphite salts, alkyl phosphonite salts, aryl phosphonite salts, and mixtures thereof.
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Colt Richard L.
Fontanez Miguel A.
Gundlach Kurt B.
Radigan, Jr. Edward J.
Byorick Judith L.
Klemanski Helene
Xerox Corporation
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