Propylene polymer based compositions for expanded granules,...

C - Chemistry – Metallurgy – 08 – L

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C08L 23/12 (2006.01) C08J 9/00 (2006.01) C08J 9/18 (2006.01) C08J 9/228 (2006.01) C08L 23/14 (2006.01)

Patent

CA 2242682

Composition pour granules expansés comprenant, pour 100 parties en poids, - de 60 à 90 parties en poids d'un homopolymère du propylène (A) ayant un indice de fluidité en fondu (MFI) de 0,1 à 20 g/10 min, et - de 40 à 10 parties en poids d'un copolymère statistique du propylène (B) contenant de 3 à 20 % molaires d'éthylène et/ou d'une .alpha.-oléfine ayant de 4 à 6 atomes de carbone dont le MFI est de 25 à 3000 g/10 min. Procédé d'obtention de cette composition, utilisation de cette composition pour la fabrication de granules expansés et articles cellulaires obtenus par moulage de ces granules.

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