Patent ID: 8247582

Claim:
A mono-ester of formula: wherein R is the same or different, and each R is independently selected from the group consisting of H, alkyl having from 1 to 12 carbon atoms, an aryl having from about 6 to about 12 carbon atoms, or an arylalkyl having between about 7 to about 18 carbon atoms, additionally two adjoining R groups can form an aryl group; and wherein R′ is the same or different, and each R′ is independently selected from the group consisting of H, alkyl having from 1 to 12 carbon atoms, and aryl having from 6-12 carbon atoms, and an arylalkyl having between about 7 to about 18 carbon atoms, additionally two adjoining R′ groups can be part of a fused aryl group such as a benzo group.