Thermoplastic polymer compositions comprising high-fluidity polyamides
OwnerLise Trouillet-Fonti, Marco Amici +1inventors
InventorsLise Trouillet-Fonti, Marco Amici, Christophe Lapierre
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Abstract
Thermoplastic polymer compositions contain high-fluidity polyamides and have an excellent compromise in terms of properties, in particular mechanical properties and a high fluidity in the molten state; such compositions contain at least one high-fluidity polyamide and a high filler content, such as glass fibers.
Claims15
-10. (canceled)
An enhanced melt flow thermoplastic polymer composition comprising at least one high-fluidity thermoplastic polyamide, an amount of reinforcing fillers greater than or equal to 45% by weight relative to the total weight of the composition and said composition having an apparent melt viscosity, in Pa·s, in accordance with the following relationships:
- η100≦30(X)−800
- η1000≦11(X)−280
- in which η is the apparent melt viscosity of the polyamide composition measured at a temperature of 275° C.;
- either at a shear rate of 100 s−1, η100, or at a shear rate of 1000 s−1, η1000;
- and X corresponds to the weight proportion of reinforcing fillers relative to the total weight of the composition.
Dependencies are inferred from the claim text.