POLYHYDROXYL-COMPOSITIONS DERIVED FROM CASTOR OIL WITH ENHANCED REACTIVITY SUITABLE FOR POLYURETHANE-SYNTHESIS

摘要

A reactive polyester polyol is described that isobtainable by half ester formation starting from at least onedicarboxylic anhydride and at least one hydroxyl groupcarrying, saturated or unsaturated fatty acid and/or arespective ester, in particular castor oil and/or ricinoleicacid, as well as final esterification by at least one polyol.