A heat-sealable bi-oriented polypropylene film, use of this...

Details A heat-sealable bi-oriented polypropylene film, use of this... A heat-sealable bi-oriented polypropylene film, use of this...

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2592133

The present invention relates to a bi-oriented polypropylene film comprising a polypropylene homopolymer base layer and at least one adjacent heat sealable polymeric layer, which in turn is constituted of a hydrocarbonic resin and a polymeric material. This film is used for making packages for paper reams, foods-tuffs, perfumery among other packages, since it exhibits ideal properties to ensure adequate closure and airtightness thereof. Thus, it protects the packed product against the action, for example, of moisture and dust.

La présente invention concerne un film de polypropylène bi-orienté comprenant une couche de base homopolymère de polypropylène et au moins une couche polymère adjacente thermosoudable elle-même faite d'une résine hydrocarbonique et d'un matériau polymère. Ce film sert à la réalisation d'emballages pour rames de papier, produits alimentaires et parfumerie, parce qu'il faut preuve de propriétés idéales pour en garantir la fermeture adéquate et l'imperméabilité à l'air. Ainsi, il protège le produit emballé contre l'action notamment de l'humidité et de la poussière.

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