| http://www.w3.org/ns/prov#value | - polyadducts of propylene oxide with a trihydric to hexahydric aliphatic alcohol of 3 to 5 carbon atoms, for example glycerol or pentaerythritol, said polypropylene oxide polyadducts having an average molecular weight of 250 to 1800, preferably 400 to 900.
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