| http://www.w3.org/ns/prov#value | - The composition of claim 4 wherein R4 and R6 are each hydrogen, R5 is a direct bond and R7 is selected from the group consisting of CH2 OH, a hydrocarbon moiety containing 3 to about 20 carbon atoms and an organic moiety containing ester or ether groups and containing from 3 to about 20 carbon atoms.
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