| 摘要 |
<p>The present invention relates to biodegradable PHA copolymers comprising at least two randomly repeating monomer units. The present invention further relates to a plastic article comprising a biodegradable copolymer, wherein t he biodegradable copolymer comprises at least two randomly repeating monomer units (RRMU) wherein the first RRMU has structure (I), wherein R1 is H, or C 1 or C2 alkyl, and n is 1 or 2; the second RRMU has structure (II) and wherein at least 50 % of the RRMUs have the structure of the first RRMU. The present invention further relates to an absorbent article comprising a liquid pervio us topsheet, a liquid impervious backsheet comprising a film comprising a PHA o f the present invention and an absorbent core copositioned between the topshee t and the backsheet.</p> |
