| http://www.w3.org/ns/prov#value | - In addition to compounds containing amino groups, thiol groups or carboxyl groups, are, preferably, compounds containing hydroxyl groups, particularly compounds containing from about 2 to 50 hydroxyl groups and above all, compounds having a weight average molecular weight of from about 500 to 25000, preferably from about 700 to 2000, for example, polyesters, polyethers, polythioethers, polyacetals
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