| http://www.w3.org/ns/prov#value | - The polyester component preferably has units ???O???E???O???CO???R???CO???, wherein O represents oxygen, C represents carbon, E is a substituted or unsubstituted alkylene or oxydialkylene radical having from 2 to 8 carbon atoms, and R is a substituted or unsubstituted divalent aromatic radical.
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