Patent ID: 7084189

Claim:
A phase change ink composition comprising (a) a colorant and (b) the reaction product of (i) an isocyanate and (ii) an antioxidant or UV stabilizer molecule having thereon (A) at least one isocyanate-reactive hydroxyl group and/or (B) at least one isocyanate-reactive primary or secondary amino group, wherein the antioxidant or UV stabilizer molecule is (I) of the formula wherein, provided that at least one of R 20 , R 21 , R 23 , R 23 , R 24 , R 25 , R 26 , and R 27 is an isocyanate-reactive hydroxy group, an isocyanate-reactive amino group, an isocyanate-reactive hydroxy-substituted alkyl group, an isocyanate-reactive amino-substituted alkyl group, an isocyanate-reactive hydroxy-substituted aryl group, an isocyanate-reactive amino-substituted aryl group, an isocyanate-reactive hydroxy-substituted arylalkyl group, an isocyanate-reactive amino-substituted arylalkyl group, an isocyanate-reactive hydroxy-substituted alkylaryl group, an isocyanate-reactive amino-substituted alkylaryl group, an isocyanate-reactive hydroxy-substituted alkoxy group, an isocyanate-reactive amino-substituted alkoxy group, an isocyanate-reactive hydroxy-substituted aryloxy group, an isocyanate-reactive amino-substituted aryloxy group, an isocyanate-reactive hydroxy-substituted arylalkyloxy group, an isocyanate-reactive amino-substituted arylalkyloxy group, an isocyanate-reactive hydroxy-substituted alkylaryloxy group, an isocyanate-reactive amino-substituted alkylaryloxy isocyanate-reactive hydroxy-substituted polyalkyleneoxide group, an isocyanate-reactive amino-substituted polyalkyleneoxide group, an isocyanate-reactive hydro-substituted polyaryleneoxide group, an isocyanate-reactive amino-substituted polyaryleneoxide group, an isocyanate-reactive hydroxy-substituted polyarylalkyleneoxide group, an isocyanate-reactive amino-substituted polyarylalkyleneoxide group, an isocyanate-reactive hydroxy-substituted polyalkylaryleneoxide group, or an isocyanate-reactive amino-substituted polyalkylaryleneoxide group, R 20 , R 21 , R 23 , R 23 , R 24 , R 25 , R 26 , and R 27 each, independently of the others, is (i) a hydrogen atom, (ii) a hydroxy group, (iii) an amino group of the formula —NR 28 R 29 , wherein R 28 and R 29 each, independently of the others, is a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, (iv) an alkyl group, (v) an aryl group, (vi) an arylalkyl group, (vii) an alkylaryl group, (viii) an alkoxy group, (ix) an aryloxy group, (x) an arylalkyloxy group, (xi) an alkylaryloxy group, (xii) a polyalkyleneoxy group, (xiii) a polyaryleneoxy group, (xiv) a polyarylalkyleneoxy group, or (xv) a polyalkylaryleneoxy group, (II) a butylated hydroxytoluene, (III) a diaromatic secondary amine, (IV) a diphenyl acrylonitrile ester, (V) a cinnamate, (VI) a trisaryl-1,3,5-triazine, or (VII) mixtures thereof.