C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/08 (2006.01) A61F 13/15 (2006.01) A61L 15/26 (2006.01) A61L 15/62 (2006.01) C08J 5/18 (2006.01) C09J 167/04 (2006.01)
Patent
CA 2181796
The present invention relates to a film comprising a biodegradable copolymer, wherein the copolymer comprises at least two randomly repeating monomer units (RRMU) wherein the firs RRMU monomer unit has structure (a) and the second RRMU has structure (b) 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 biodegradable liquid impervious backsheet comprising the above film, and an absorbent core positioned between the topsheet and the backsheet.
Cette invention se rapporte à un film comprenant un copolymère biodégradable, lequel comporte au moins deux unités monomères se répétant de manière aléatoire (RRMU), la première unité monomère RRMU ayant la structure (a) et la seconde unité monomère RRMU ayant la structure (b). Au moins 50 % des unités monomères RRMU possèdent la structure de la première unité monomère RRMU. Cette invention se rapporte en outre à un article absorbant comportant une feuille de dessus perméable aux liquides, une feuille de dessous biodégradable imperméable aux liquides, laquelle comprend le film mentionné ci-dessus, ainsi qu'un noyau absorbant placé entre la feuille de dessus et la feuille de dessous.
Dimock Stratton Llp
Meredian Inc.
LandOfFree
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