Polyolefin compositions for heat-sealable films having...

Details Polyolefin compositions for heat-sealable films having... Polyolefin compositions for heat-sealable films having...

C - Chemistry, Metallurgy

08

L

C08L 23/14 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) C08J 5/18 (2006.01) C08L 23/06 (2006.01) C08L 23/08 (2006.01) C08L 23/10 (2006.01) C08L 23/04 (2006.01) C08L 23/12 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2226118

Polyolefin compositions for seal peel films, comprising (percent by weight): A) from 20 to 50 % of HDPE, LDPE or EVA having MFR higher than 0.3 g/10 min; B) from 30 to 80 % of a random copolymer of propylene with ethylene and/or a C4-C8 .alpha.-olefin, or of a polyolefin composition comprising not less than 20 % of said random copolymer of propylene; C) from 0 to 20 % of an elastomeric or elastomeric thermoplastic olefin polymer.

La présente invention concerne des compositions à base de polyoléfine pour films thermosoudables pelables comprenant (en pour-cent en poids): A) de 20 à 50 % de PEHD, de PEBD ou d'acétate d'éthylène vinyle à indice de fusion supérieur à 0,3 g/10 min.; B) de 30 à 80 % d'un copolymère de propylène aléatoire comprenant de l'éthylène et/ou une .alpha.-oléfine C¿4?-C¿8?, ou 30 à 80 % d'une composition à base de polyoléfine comprenant au moins 20 % dudit copolymère de propylène aléatoire; C) de 0 à 20 % d'un polymère d'oléfine élastomère ou élastomère thermoplastique.

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