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US 4,233,328 AGranted
Edible materials colored with polymeric yellow colorant
AssigneeDynapol
InventorsDaniel J. Dawson, Kenneth M. Otteson, Roman Davis
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AssigneeDynapol
InventorsDaniel J. Dawson, Kenneth M. Otteson, Roman Davis
Estimating the term…
A group of water-soluble polymeric yellow colors and their preparation is disclosed. These colors comprise a plurality of units of a chromophore of the formula ##STR1## wherein M.sup.+ is a pharmaceutically acceptable monovalent cation, attached directly to amine units present in a nonchromophoric polymer backbone. In a preferred embodiment of the invention the backbone is a homopolymer or copolymer of vinylamine. These colorants find special utility as nonabsorbable colorants for edibles, especially foods and beverages, where their yellow hue is an excellent color match for existing monomeric azo food colors such as tartrazine, and as components of acid-insoluble pigment lakes which are themselves suitable for use in edibles.
A colored edible material comprising an edible material in intimate admixture with a color-imparting concentration of a water-soluble polymeric yellow colorant comprising a nonchromophoric organic backbone of molecular weight of from 1000 to 200,000 having covalently attached thereto through amine groups a plurality (n) in the range of from 10 to 2000, of chromophore units of the structure ##STR45## wherein M.sup.+ is a pharmacologically acceptable cation.
A colored edible material comprising an edible material in intimate admixture with a coloring amount in the range of from 10 ppm to 1000 ppm by weight, basis edible material, of a water-soluble polymeric yellow colorant consisting essentially of material of the formula ##STR49## wherein n+p is a number from 9000 to 3500, m is a number from 600 to 2000, and q is a number from 10 to 100, m+p, m and q being further defined as being in a ratio of about 6 to 4 to 0.1.
A colored edible material comprising an edible material in intimate admixture with a color imparting concentration of an acid-insoluble pigment comprising a particulate inorganic oxidic substrate having deposited on the surface thereof a polymeric colorant in an amount of from 1 to 75%, basis weight of total pigment, said colorant comprising a nonchromophoric organic backbone of molecular weight of from 1000 to 200,000 Daltons having convalently attached thereto through amine groups a plurality (n) of chromophore units of the structure ##STR50## wherein m.sup.+ is a pharmacologically acceptable cation.
A colored edible material comprising an edible material in intimate admixture with a color-imparting concentration of an acid insoluble pigment comprising a particulate alumina solid of 0.5 to 50 micron particle size having deposited on the surface thereof a polymeric colorant in an amount of from about 3% to about 50%, basis total weight of pigment, said polymeric colorant having the formula ##STR51## wherein R.sub.1 is a carbon-nitrogen single covalent bond, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, A, A' and A" are independently selected from ##STR52## and M.sup.+ is a pharmaceutically acceptable cation.
Dependencies are inferred from the claim text.