Radical polyethylene and ethylene/propylene copolymers...

C - Chemistry – Metallurgy – 08 – L

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400/4913, 400/64

C08L 23/14 (2006.01) C08L 23/04 (2006.01)

Patent

CA 1178393

PRECIS DE LA DIVULGATION Compositions comprenant de 5 à 70 % en poids d'au moins un polymère radicalaire d'éthylène de densité comprise entre 0,91 et 0,94 et de 30 à 95 % en poids d'au moins un copolymère éthylène-propylène de densité ? comprise entre 0,900 et 0,935, d'indice de fluidité compris entre 0,4 et 3 dg/mn environ, dont le taux m de groupes méthyles est compris entre 22 et 62 pour 1000 atomes de carbone et est tel que: 0,9530 ? ? + 0,83 m ? 0,9568. Ces compositions permettent la fabrication par extrusion-soufflage de films d'épaisseur inférieure ou égale à 20 microns. Application à l'industrie de l'emballage.

378411

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