This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic-aromatic copolyesters and/or polymeric compounds as well as fibers, molded...http://www.google.es/patents/US6342304?utm_source=gb-gplus-sharePatente US6342304 - Aliphatic aromatic copolyesters
