| http://www.w3.org/ns/prov#value | - to 15 carbon atoms, R3 and R4 independently represent a monovalent hydrocarbon group having 1 to 6 carbon atoms such as an alkyl group, an alkenyl group and an aryl group, p is an integer of 1 to 12, and q is an integer of 1 to 3, and ##STR11## wherein Y represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, n is an integer of 1 to 10, and R1 and R2 are as defined above. 6.
|
