B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/18 (2006.01) B32B 27/08 (2006.01) B60K 15/03 (2006.01) B65D 90/46 (2006.01)
Patent
CA 2147763
This invention relates to a multi-layer composite comprising one or more sequences comprising a base layer/tie-layer/EVOH/ tie-layer/base layer, said composite having on at least one of its outer surfaces a conductive material either impregnated thereon or applied as a film on said outer surface. The base layer is preferably a polyolefin such as polyethylene. These composites are useful as vapour containment layers for fuel tanks.
Matériau composite multicouches comprenant une ou plusieurs séquences comportant une couche de base/une couche intermédiaire/une couche de copolymère d'alcool éthylène-vinyle/une couche intermédiaire/une couche de base. Le matériau composite comprend au moins sur l'une de ses surfaces externes un matériau conducteur impregné ou appliqué sous forme d'un film sur ladite surface externe. La couche de base est de préférence une polyoléfine telle que le polyéthylène. Ces matériaux composites sont utiles comme couches de confinement de vapeur pour réservoirs à carburant.
Duguid Grant William
Gill Michael Bert
Bxl Plastics Limited
Fetherstonhaugh & Co.
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