| http://www.w3.org/ns/prov#value | - said polyoxyalkylene (POA) unit comprises 2 to 200, preferably 5 to 150, similar or different oxyalkylene elementary units, wherein the linear or branched alkylene residue contains 2 to 12, preferably 2 to 6, carbon atoms, most particularly 2 or 3 carbon atoms;
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