| 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 the 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 structue of the first RRMU. The present invention further relates to an absorbent article comprising a liquid previous topsheet, a liquid impervious backsheet comprising a film comprising a PHA of the present invention and an absorbent core positioned between the topsheet and the backsheet.</p> |
