Water-soluble amine-linked polymeric colorants
AssigneeDynapol
InventorsPatricia C. Wang, Robert E. Wingard
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Abstract
Polymeric colorants comprising a hydrocarbon backbone and attached directly thereto through amine linkages, at least one water-solubilizing group and at least one optically chromophoric group are disclosed. In a preferred embodiment, the backbone is a saturated aliphatic hydrocarbon, the chromophore is an anthraquinone chromophore and the solubilizing group is a sulfonate or sulfamate residue.
Claims21
A water-soluble polymeric coloring composition consisting essentially of n units of an organic optically chromophoric group, A, and m units of a sulfur oxide water-solubilizing groups selected from the group consisting of sulfonate group and 2 to 4 carbon alkyl sulfonate groups attached through amine linkages selected from the group consisting of the secondary amine linkage and 1 to 4 carbon alkyl-substituted tertiary amine linkages directly to separate carbon atoms of a saturated aliphatic hydrocarbon backbone, wherein n is from 0.2 to 4 times m, the sum of n plus m is a value from 20 to 3000 and the coloring composition has a molecular weight of from 2000 to 2,000,000.
A water-soluble polymeric coloring composition consisting essentially of m ##STR104## groups and ##STR105## groups randomly linked together through covalent carbon-carbon bonds into a ##STR106## polymer having a linear aliphatic hydrocarbon backbone wherein n and m are integers such that the sum of n plus m is a value of from 20 to 3000, n is from 0.2 to 4 times m, A is an optically chromophoric organic group and the coloring composition has a molecular weight of from 2000 to 2,000,000.
A water soluble coloring composition comprising n ##STR107## groups and m ##STR108## groups randomly linked together through covalent carbon-carbon bonds into a linear aliphatic polymer wherein n and m are integers such that the sum of n plus m is a value of from 20 to 3000, n is from 0.4 to 2 times m and A is an optically chromophoric group represented by the formula:
- ##STR109## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyls of from 1 to 4 carbon atoms and aryls of about 6 carbon atoms, R.sub.2 is selected from the group consisting of 1 to 4 carbon atom lower alkyls, 1 to 4 carbon atom lower alkoxies, and aryls of about 6 carbon atoms, and R.sub.3 is selected from the group consisting of hydrogen and 1 to 4 carbon atom lower alkyls.
A water-soluble coloring composition comprising n ##STR110## groups and m ##STR111## groups randomly linked together through covalent carbon-carbon bonds into a linear aliphatic polymer wherein n and m are integers such that the sum of n plus m is a value of from 20 to 3000, n is from 0.4 to 2 times n and A is an optically chromophoric group represented by the formula:
- ##STR112## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is selected from the group consisting of hydrogen and lower alkyls of from 1 to 4 carbon atoms and R.sub.3 is selected from the group consisting of hydrogen, lower alkyls of from 1 to 4 carbon atoms, the halogens, cyano and nitro.
A water-soluble coloring composition comprising n optically chromophoric anthraquinone groups and m sulfonate groups individually attached through amine linkages selected from the secondary amine linkage and 1 to 4 carbon alkyl-substituted tertiary amine linkages directly to essentially one-half the carbons of a linear aliphatic hydrocarbon polymer backbone of not less than 40 carbon atoms, wherein n and m are numbers and n is from 0.2 to 4 times m and wherein the composition is nontoxic, having a value for the sum of n plus m in the range of from 20 to 3000 such that the molecular size of the composition substantially prevents the passage of molecules of the composition through the mucosa of the gastrointestinal tract when the composition is ingested.
Dependencies are inferred from the claim text.