Thermoplastic olefinic compositions

Details Thermoplastic olefinic compositions Thermoplastic olefinic compositions

C - Chemistry, Metallurgy

08

L

C08L 23/16 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2548435

Thermoplastic olefinic compositions comprising (a) at least one ethylene/&agr;- olefin polymer having a PRR between 8 and 70 and (b) at least one polypropylene polymer and an (a)/(b) weight ratio of greater than 50/less than 50 to 90/10. The compositions are used in extrusion, calendering, blow molding, foaming and thermoforming processes to make a variety of articles, such as automotive instrument panel skins.

L'invention concerne des compositions oléfiniques thermoplastiques comprenant: (a) au moins un polymère d'éthylène/.alpha.-oléfine possédant un rapport rhéologique de traitement compris entre 8 et 70 et (b) au moins un polymère de polypropylène et un rapport pondéral a/b supérieur à 50/inférieur à 50 à 90/10. Ces compositions sont utilisées dans des procédés d'extrusion, de calandrage, de moulage par soufflage, de moussage et de thermoformage pour la fabrication d'une grande diversité d'articles, tels que des revêtements de tableaux de bord d'autos.

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