Silicone-free release films

Details Silicone-free release films Silicone-free release films

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) C09J 7/02 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2245928

A silicone-free release film comprises a linear ethylenic polymer having a density from 0.865 to 0.900 g/cc and an index of polydispersity of less than 5.0 and yields a maximum release force value of 39 g/cm at a film thickness of 0.10 to 0.15 mm in an adhesive peel test. The film is useful in manufacturing rolls and sheets of pressure-sensitive adhesive tape.

Une pellicule de séparation exempte de silicone comporte un polymère linéaire éthylénique, d'une densité comprise entre 0,865 et 0,900 g/cc et d'un indice de polydispersité inférieur à 5,0, dont la valeur de la force maximale de décollement atteint 39 g/cm pour une épaisseur de pellicule comprise entre 0,10 et 0,15 mm lors d'un essai d'arrachement. Cette pellicule se révèle utile pour la fabrication de rouleaux et de feuilles de rubans auto-adhésifs.

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