B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) C08F 255/02 (2006.01) C08J 7/04 (2006.01)
Patent
CA 2183770
A transparent multilayer film made from a polymer substrate, preferably polypropylene, is modified by a maleic anhydride modified propylene polymer, which can be located on a surface of the substrate and/or incorporated within the substrate, has a skin layer of ethylene vinyl alcohol copolymer which is coated with a transparent gas barrier layer, such as a metal oxide, specifically, silicon monoxide, silicon dioxide, aluminum oxide, magnesium oxide, boron oxide, calcium oxide and barium oxide and a mixture of two or more of the foregoing oxides.
Un film multicouche transparent, fabriqué dans un substrat polymère, de préférence le polypropylène, est modifié par un polymère propylène modifié par l'anhydride maléïque qui peut être déposé sur une surface du substrat et/ou incorporé dans le substrat. Ce film possède une couche superficielle de copolymère d'alcool vinylique d'éthylène recouvert d'une couche transparente faisant barrière aux gaz, telle qu'un oxyde métallique, notamment, le monoxyde de silicium, le dioxyde de silicium, l'oxyde d'aluminium, l'oxyde de magnésium, l'oxyde de bore, l'oxyde de calcium et l'oxyde de barium, et un mélange d'au moins deux de ces oxydes.
Balloni Riccardo
Tsai Mingliang Lawrence
Balloni Riccardo
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
Tsai Mingliang Lawrence
LandOfFree
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