Stretched-thinned films comprising low crystallinity...

Details Stretched-thinned films comprising low crystallinity... Stretched-thinned films comprising low crystallinity...

C - Chemistry, Metallurgy

08

L

C08L 23/14 (2006.01) C08J 5/18 (2006.01) C08L 23/12 (2006.01)

Patent

CA 2274537

The present invention relates to thin, elastomeric films made from low crystallinity propylene copolymers having a crystallinity of less than about 30 %. The elastomeric films of the present invention have improved strength in the cross machine direction. The films may be incorporated into laminate materials used in the outer coverings of diapers, training pants, incontinence products and the like.

L'invention concerne des films élastomères fins fabriqués à partir de copolymères de propylène faiblement cristallins, ayant une cristallinité inférieure à 30 % environ. Ces films élastomères ont une résistance améliorée dans la direction perpendiculaire à la direction de fabrication. Ils peuvent être incorporés à des matériaux stratifiés utilisés pour recouvrir les couches, les culottes de propreté, les produits d'incontinence, etc.

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