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    • 65. 发明授权
    • Plastic articles comprising biodegradable PHA copolymers
    • 包含可生物降解的PHA共聚物的塑料制品
    • US06569990B1
    • 2003-05-27
    • US09710222
    • 2000-11-10
    • Isao Noda
    • Isao Noda
    • C08G6306
    • C08J5/18C08J2367/04Y10S428/913
    • 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 the structure wherein R1 is H, or C1 or C2 alkyl, and n is 1 or 2; the second RRMU has the structure 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 pervious 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.
    • 本发明涉及包含至少两个随机重复的单体单元的可生物降解的PHA共聚物。 本发明还涉及包含可生物降解的共聚物的塑料制品,其中所述生物降解性共聚物包含至少两个随机重复的单体单元(RRMU),其中所述第一RRMU具有其中R 1为H或C 1或C 2烷基的结构,且n为1 或2; 第二RRMU具有结构,其中至少50%的RRMU具有第一RRMU的结构。 本发明还涉及一种吸收性物品,其包括透液性顶片,不透液体的底片,其包含由本发明的PHA构成的膜和位于顶片与底片之间的吸收芯。