Patent ID: 8741040
Filing Date: 2014-06-03
Classification: C09D

Abstract:
1. A phase change ink comprising an amorphous component comprises an ester of tartaric acid of Formula I or an ester of citric acid of Formula II 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 component being an aromatic ether having the following structure: wherein R 6 and R 7 is independently selected from the group consisting of (i) an alkyl group, which can be a linear or branched, cyclic or acyclic, substituted or unsubstituted, saturated or unsaturated, alkyl group, and wherein heteroatoms may optionally be present in the alkyl group, in embodiments, having from about 1 to about 40 carbon atoms; (ii) an arylalkyl group, which can be a substituted or unsubstituted arylalkyl group, wherein the alkyl portion of arylalkyl group can be linear or branched, cyclic or acyclic, substituted or unsubstituted, saturated or unsaturated, and wherein heteroatoms may optionally be present in either the aryl portion or the alkyl portion of the arylalkyl group, in embodiments, having from about 4 to about 40 carbon atoms; and (iii) an aromatic group, which can be a substituted or unsubstituted aromatic group, wherein the substituent can be a linear, branched, cyclic or acyclic alkyl group and wherein heteroatoms may optionally be present in the aromatic group, having from about 3 to about 40 carbon atoms; and mixtures thereof, provided that at least one of R 6 and R 7 is an aromatic group; and p is 0 or 1; wherein the phase change ink crystallizes in less than 15 seconds.