C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/34 (2006.01) C08J 3/20 (2006.01)
Patent
CA 2313478
The invention relates to a process for the preparation of a polyamide nanocomposite composition by mixing in the melt phase a polyamide, a solid substance composed of anisotropic particles with a high aspect ratio and a liquid, the liquid being added to and subsequently mixed with a melt comprising at least the polyamide. Preferably water is chosen as the liquid. The invention also relates to a polyamide nanocomposite composition obtained by mixing in the melt phase a polyamide and a non-swollen solid substance composed of particles with a high aspect ratio. The polyamide nanocomposite compositions obtained with the process according to the invention and the polyamide nanocomposite compositions according to the invention can be used in all moulded parts which can be produced with a polyamide composition and which demand particularly good mechanical properties, for example for use in the motor compartment of a vehicle, for casings and for connectors.
L'invention porte sur un procédé de préparation d'une composition nanocomposite de polyamide en mélangeant dans la phase fondue un polyamide, une substance solide de particules anisotropes à fort allongement, le liquide ajouté puis mélangé à la phase fondue comprenant au moins le polyamide et étant de préférence de l'eau. L'invention porte également sur une composition nanocomposite de polyamide obtenue en mélangeant dans la phase fondue un polyamide et une substance solide non gonflée de particules à fort allongement. Les compositions obtenues au moyen du procédé de l'invention et les compositions de l'invention peuvent servir pour toutes pièces moulées à base de compositions de polyamide requérant de bonnes propriétés mécaniques, par exemple pour des pièces du compartiment moteur de véhicules, de carters et de connecteurs.
Korbee Roland Alexander
Van Geenen Albert Arnold
Dsm N.v.
Fetherstonhaugh & Co.
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