Patent ID: 8741042

Claim:
A phase change ink comprising: an amorphous compound; wherein the amorphous compound comprises a first ester of tartaric acid of the formula wherein each R 1 , R 2 , R 3 , R 4 , and R 5 is independently an alkyl group, wherein the alkyl can be straight, branched or cyclic, saturated or unsaturated, substituted or unsubstituted, having from about 1 to about 40 carbon atoms or a substituted or unsubstituted aromatic or heteroaromatic group, and mixtures thereof; a crystalline compound; wherein the crystalline compound comprises a second ester of tartaric acid of the formula wherein each R 19 and R 20 is independently an aryl or a heteroaryl optionally substituted with a lower alkyl and alkoxy, and each n is independently 0 to 3; or wherein the crystalline compound is a compound of the formula wherein Q is alkanediyl; each R 15 and R 16 is independently phenyl or cyclohexyl optionally substituted with one or more alkyl; i is 0 or 1; j is 0 or 1; p is 1 to 4; and q is 1 to 4; an optional dispersant; an optional synergist; an optional colorant; and an alcohol having a long alkyl chain containing from about 10 to about 80 carbon atoms.