Polymer mixture for slush molding

Details Polymer mixture for slush molding Polymer mixture for slush molding

C - Chemistry, Metallurgy

08

L

C08L 53/00 (2006.01) C08L 23/08 (2006.01) C08L 23/12 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2271862

A mixture of elastomeric thermoplastic compositions comprising (weight percentage): A) from 40 to 90 % of a heterophasic polyolefin composition (A) having a melt flow rate (measured according to ASTM-D 1238, condition L) ranging from 20 to 100 g/10 min; and B) from to 60 % of a heterophasic polyolefin composition (B) that is partially dynamically cross-linked. The powders of the above mentioned mixture are used in slush molding processes for the production of laminated products.

Cette invention se rapporte à un mélange de compositions thermoplastiques élastomères contenant (en pourcentage pondéral) a) 40 à 90 % d'une composition de polyoléfine hétérophasique (A) ayant un indice de fluage (mesuré selon ASTM D1238, clause L) compris entre 20 et 100 g/10 min; et b) 10 à 60 % d'une composition de polyoléfine hétérophasique B partiellement réticulée de manière dynamique. Les poudres dudit mélange sont utilisés dans des procédés de coulage par embouage pour la production d'articles stratifiés.

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