Laminate, laminated film and molding

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/18 (2006.01) B32B 27/06 (2006.01) C08J 7/04 (2006.01) C08K 3/34 (2006.01)

Patent

CA 2158945

A laminate, laminated film and molding, each having a gas-barrier material layer and, formed thereon, at least one layer (or a part thereof) of a resin composition containing a resin and a layered inorganic compound having an aspect ratio of from 50 to 5,000. Suitable examples of the gas-barrier material include metal, metal oxide, ethylene-vinyl alcohol copolymer and polyvinylidene chloride. The above products has excellent gas-barrier properties for superior to those of conventional plastic materials.

L'invention concerne un stratifié, un film stratifié et un moulage sur chacun desquels est formé une couche de matière de barrage aux gaz, au moins une couche (ou une partie de celle-ci) d'une composition de résine contenant une résine ainsi qu'un composé inorganique en couches présentant un rapport d'élancement compris entre 50 et 5.000. On peut citer à titre d'exemple approprié de matière de barrage aux gaz du métal, de l'oxyde de métal, un copolymère d'éthylène/alcool vinylique ainsi que du chlorure du polyvinylidène. Les produits précités présentent d'excellentes propriétés de barrage aux gaz pour des matières plastiques de qualité supérieure aux matières plastiques classiques.

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