MIXTURE OF PREDOMINANTLY ONE POLYHYDROXYALKANOATE AND A COMPOUND WHICH CONTAINS AT LEAST TWO REACTIVE GROUPS, SUCH AS ACID AND/OR ALCOHOL GROUPS, AND A POLYMER PREPARED BY MELTING THE MIXTURE

摘要

Mixture containing at least 70% by weight of polyhydroxyalkanoate and one or more compounds which contain reactive alcohol and/or acid groups, mixtures of poly-D (-)-3-hydroxybutyric acid with a polyether being excluded, process for the preparation of a polymer by melting the above mixture and a polymer in which at least some of the acid and/or alcohol groups of the polyhydroxyalkanoate are bonded via ester bonds to alcohol and/or acid groups of the admixed compound.