| http://www.w3.org/ns/prov#value | - in which R??? denotes H or CH3, B denotes the ethyleneoxy radical, n is zero or denotes an integer ranging from 1 to 100, R denotes a hydrocarbon radical chosen from the alkyl, arylalkyl, aryl, alkylaryl or cycloalkyl radicals, comprising from 8 to 30 carbon atoms, preferably 10 to 24, and more particularly still from 12 to 18 carbon atoms.
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