Talc containing polypropylene compositions

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 23/10 (2006.01) C08J 3/20 (2006.01) C08K 3/34 (2006.01)

Patent

CA 2308393

The present invention concerns polymer compositions and a process for the preparation thereof. The compositions comprise a propylene polymer nucleated with a polymeric nucleating agent containing vinyl compound units, and 0.1 to 10 % talc, calculated from the weight of the composition, to reduce shrinkage and to improve stiffness of the composition.

La présente invention concerne des compositions de polypropylène ainsi qu'un procédé permettant de préparer ces dernières. Les compositions comprennent un polymère de propylène nucléé avec un agent de nucléation polymère renfermant des motifs de composés vinyliques, et de 0,1 à 10 % de talc, par rapport au poids de la composition, afin de réduire le retrait et d'améliorer la rigidité de la composition.

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