Thermoplastic elastomers compositions

C - Chemistry – Metallurgy – 08 – C

Patent

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Details

C08C 19/28 (2006.01) C08F 8/14 (2006.01) C08F 210/18 (2006.01) C08F 236/00 (2006.01) C08L 23/16 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2463428

The invention relates to polymer compositions useful as thermoplastic elastomers for extrusion, calendering, blow molding, thermoforming, and foam processing, and to articles made therefrom. Such improved melt strength thermoplastic elastomers include a blend of propylenic resin (A) and elastomer component (B) of styrene or ethylene, wherein the (A) resin is partially branched and/or the (B) elastomer is partially crosslinked by the addition of multifunctional acrylic monomer (C) containing at least three acrylate groups.

L'invention concerne des compositions polymères utiles comme élastomères thermoplastiques pour des opérations d'extrusion, de calandrage, de moulage par soufflage, de thermoformage et de traitement de mousse, ainsi que des articles fabriqués à partir de ces compositions. Ces élastomères thermoplastiques, qui présentent une résistance à la fusion améliorée, comprennent un mélange d'une résine propylénique (A) et d'un composant élastomère (B) de styrène ou d'éthylène, la résine (A) étant partiellement ramifiée et/ou l'élastomère (B) étant partiellement réticulé par ajout d'un monomère acrylique multifonctionnel (C) renfermant au moins trois groupes acrylate.

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