C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 7/00 (2006.01)
Patent
CA 2713092
Support film, in particular for an adhesive tape that is stretched monoaxially in the longitudinal direction and that contains a base layer made of polypropylene and a co-extrusion layer made of polyethylene, characterized in that the tension in the longitudinal direction at 10 % strain is at least 150 N/mm2, preferably at least 200 N/mm2, most preferably at least 250 N/mm2 and a separating enamel coat is applied to the exterior side of the co-extrusion layer.
L'invention concerne une feuille support destinée en particulier à un ruban adhésif, laquelle feuille support est étirée monoaxialement dans le sens longitudinal et contient une couche de base en polypropylène ainsi qu'une couche de coextrusion en polyéthylène. L'invention se caractérise en ce que la contrainte dans le sens longitudinal pour un allongement de 10 % est d'au moins 150 N/mm2, de préférence d'au moins 200 N/mm2, idéalement d'au moins 250 N/mm2, et un vernis séparateur est appliqué sur la face extérieure de la couche de coextrusion.
Michel Uwe
Muessig Bernhard
Rodewald Ilse
Gowling Lafleur Henderson Llp
Tesa Se
LandOfFree
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