Patent ID: 6225438
Filing Date: 2001-05-01
Classification: C08G,C12P,Y10S

Abstract:
A copolymer comprising, as repeating units,(i) 1-10 mol % of 3-bydroxyproprionate units (3HP) having the formula (I):--O--CH--CH.sub.2 --CO-- (I)(ii) 50-98 mol % of 3-hydroxybutyrate units (3HB) having the formula (II): ##STR3##(iii) -48 mol % of additional units, wherein the additional units are selected from the group consisting of 3-hydroxyvalerate (HV) having the formula (III), hydroxyhexanoate (HH) having the formula (IV), 3-hydroxyheptanoate (HHp) having the formula (V) and mixtures thereof: ##STR4##(iv) 1-49 mol % of 3-hydroxyoctanoate (3HO) having the formula (VI): ##STR5##