C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 29/04 (2006.01) B32B 27/06 (2006.01) B32B 27/18 (2006.01) B32B 27/20 (2006.01) C08J 7/04 (2006.01) C08K 3/34 (2006.01) C08K 7/00 (2006.01)
Patent
CA 2158942
A resin composition comprising polyvinyl alcohol and an inorganic layered compound having an aspect ratio of from 50 to 5,000, wherein the volumetric ratio of the inorganic compound to the polyvinyl alcohol ranges from 5/95 to 30/70; and a laminate and a laminated film each having a layer (1) comprising the above composition or a part of the layer in at least part of the same. The composition, laminate and laminated film exhibit good gas-barrier properties while substantially retaining the good film strength.
L'invention concerne une composition de résine comprenant de l'alcool polyvinylique ainsi qu'un composé inorganique en couches dont le rapport d'élancement est compris entre 50 et 5.000, dans alaquelle le rapport volumétrique entre le composé inorganique et l'alcool polyvinylique est compris entre 5/95 et 30/70, ainsi qu'un stratifié et un film stratifié comportant chacun une couche (1) comprenant la composition précitée, ou une partie de ladite couche renfermant au moins une partie de ladite composition. La composition, le stratifié et le film stratifié présentent de bonnes propriétés de barrage aux gaz tout en conservant sensiblement la bonne résistance du film.
Kawakita Toshio
Kotani Kozo
Kuroda Toshiya
Sakaya Taiichi
Marks & Clerk
Sumitomo Chemical Co. Ltd.
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