Patent ID: 8888905

Claim:
A phase change ink comprising: an amorphous compound comprises an ester of tartaric acid of Formula I wherein one of R 1 and R 2 is 2-isopropyl-5-methylcyclohexyl, and the other one of R 1 and R 2 is 2-isopropyl-5-methylcyclohexyl, 4-t-butylcyclohexyl, or cyclohexyl, or one of R 1 and R 2 is 4-t-butylcyclohexyl, and the other one of R 1 and R 2 is cyclohexyl; a crystalline compound comprises an ester of an aliphatic linear diacid having the following formula: wherein R 12 may be substituted or unsubstituted alkyl chain and is selected from the group consisting of —(CH 2 ) 1 — to —(CH 2 ) 12 —, and wherein R 13 and R 14 , each independently of the other, is selected from the group consisting of a substituted or unsubstituted aromatic or heteroaromatic group, subtituents including alkyl groups, wherein the alkyl portion is straight, branched or cyclic; and an optional colorant.