| http://www.w3.org/ns/prov#value | - Examples of preferred polymers c2) are copolymers which comprise in copolymerized form at least one of the aforementioned monoesters of dihydric or polyhydric alcohols with at least one ??,??-ethylenically unsaturated monocarboxylic and/or dicarboxylic acid and at least one further comonomer, preferably selected from vinylaromatics, such as styrene, esters of the aforementioned ??,??-unsaturated m
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