Patent ID: 6200369
Filing Date: 2001-03-13
Classification: C09D

Abstract:
An ink composition which comprises (a) water; (b) a colorant; and (c) an additive selected from the group consisting of (1) diamido quaternary dialkyl ammonium salts of the formula ##STR57##wherein R.sub.1 and R.sub.2 each, independently of the other, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from 10 to about 26 carbon atoms, R.sub.3 and R.sub.4 each, independently of the other, are alkyl groups with from 1 to about 6 carbon atoms, alkoxy groups with from 1 to about 6 carbon atoms, or benzyl groups, R.sub.5 and R.sub.6 are each, independently of the other, an alkylene group with from 1 to about 3 carbon atoms, and X is an anion, wherein n represents the charge on the anion, said diamido quaternary dialkyl ammonium salts being present in combination with a cosurfactant, said cosurfactant being present in the ink in an amount sufficient to solubilize the diamido quaternary dialkyl ammonium salt and the colorant in the ink; (2) bitail quaternary tetraalkyl ammonium salts of the formula ##STR58##wherein R.sub.1 and R.sub.2 each, independently of the other, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms, R.sub.3 and R.sub.4 each, independently of the other, are benzyl groups, alkyl groups, or substituted alkyl groups with from 1 to about 6 carbon atoms, and X is an anion, wherein n represents the charge on the anion, said bitail quaternary tetraalkyl ammonium salts being present in combination with a cosurfactant, said cosurfactant being present in the ink in an amount sufficient to solubilize the bitail quaternary tetraalkyl ammonium salt and the colorant in the ink; (3) bitail imidazolium salts of the formula ##STR59##wherein R.sub.1 and R.sub.2 each, independently of the other, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms, R.sub.3 is an alkylene group with from 1 to about 3 carbon atoms, R.sub.4 is a hydrogen atom, a methyl group, or an ethyl group, and X is an anion, wherein n represents the charge on the anion, said bitail imidazolium salts being present in combination with a cosurfactant, said cosurfactant being present in the ink in an amount sufficient to solubilize the bitail imidazolium salt and the colorant in the ink; (4) bitail biomimetic phospholipid salts of the formula ##STR60##wherein each R, independent of the other is an alkyl group with from about 12 to about 24 carbon atoms, an arylalkyl group with from about 14 to about 26 carbon atoms, an alkylamidopropyl group with from about 8 to about 24 carbon atoms, a perfluoroalkyl group with from about 8 to about 24 carbon atoms, an arylperfluoroalkyl group with from about 10 to about 26 carbon atoms, or a perfluoroalkylamidopropyl group with from about 8 to about 24 carbon atoms, G is a cation, and A is an anion; (5) bisquaternary salts of the formula ##STR61##wherein each R.sub.1, independently of the other, is an alkyl group with from about 12 to about 24 carbon atoms, each R.sub.2, independently of the others, is --CH.sub.3 or --CH.sub.2 CH.sub.2 OH, B is ##STR62##and X is an anion, wherein n represents the charge on the anion; (6) bisquaternary salts of the formula ##STR63##wherein R.sub.1, R.sub.2 R.sub.3, and R.sub.4 each, independently of the others, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms, R.sub.5 and R.sub.6 each, independently of the other, are alkyl groups or substituted alkyl groups with from 1 to about 4 carbon atoms, m, p, q, and r are each integers representing the number of repeat units, and are each from 1 to about 10, A is an alkylene group with from 1 to about 4 carbon atoms, and X is an anion, wherein n represents the charge on the anion; (7) bisquaternary salts of the formula ##STR64##wherein R.sub.1 is an alkyl group with from about 12 to about 24 carbon atoms, an arylalkyl group with from about 14 to about 26 carbon atoms, a perfluoroalkyl group with from about 8 to about 24 carbon atoms, or an arylperfluoroalkyl group with from about 10 to about 26 carbon atoms, R.sub.2, R.sub.3, and R.sub.4 are each ethyl groups, A is an alkylene group with from 1 to about 6 carbon atoms, and X is an anion, wherein n represents the charge on the anion; (8) bisquaternary salts of the formula ##STR65##wherein R.sub.1 and R.sub.2 each, independently of the others, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms, R.sub.3 and R.sub.4 each, independently of the other, are alkyl groups or substituted alkyl groups with from 1 to about 4 carbon atoms, A is an alkylene group with from 1 to about 3 carbon atoms, and X is an anion, wherein n represents the charge on the anion; (9) .beta.-hydroxyethyl ethylene diamine fatty acids of the formulae ##STR66##wherein R.sub.1, R.sub.2, and R.sub.3 each, independently of the others, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms; (10) polyammonium salts of the formula ##STR67##wherein R.sub.1 is a substituted alkyl group with from about 12 to about 26 carbon atoms, an arylalkyl group with from about 14 to about 26 carbon atoms, a perfluoroalkyl group with from about 8 to about 24 carbon atoms, or an arylperfluoroalkyl group with from about 10 to about 26 carbon atoms, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each, independently of the others, is a methyl group or a hydroxyethyl group, m is an integer representing the number of repeating (--CH.sub.2 --) units, and is from about 2 to about 6, p is an integer representing the number of repeating ammonium groups, and is from about 1 to about 5, and X is an anion, wherein n represents the charge on the anion; (11) ethoxylated polyamine compounds of the formula ##STR68##wherein R.sub.1 and R.sub.2 each, independently of the others, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms, m is an integer representing the number of repeating (--CH.sub.2 --) units, and is from 1 to about 4, and n is an integer representing the number of repeating amine units, and is from 1 to about 4; (12) biquaternary pyridinium salts of the formula ##STR69##wherein R.sub.1 and R.sub.2 each, independently of the others, are alkyl groups with from about 12 to about 24 carbon atoms, arylalkyl groups with from about 14 to about 26 carbon atoms, perfluoroalkyl groups with from about 8 to about 24 carbon atoms, or arylperfluoroalkyl groups with from about 10 to about 26 carbon atoms, A is an alkylene group with from 1 to about 6 carbon atoms, and X is an anion, wherein n represents the charge on the anion; (13) aminofunctional polyorganosiloxanes of the general formula ##STR70##wherein R is an alkyl or arylalkyl group and p and n are each integers representing the number of repeat monomer units; and (14) mixtures thereof.