Amorphous mixture comprising, on the one hand, a semi - aromatic polyamide amorphous arising at least of alkylpentamethylenediamine and the dicarboxylic acid (s) (s) aromatic compound (s) and, on the other hand, a polyamide semi - lens of nylon type arising of hexamethylenediamine and adipic acid and / or d ′ (ε) - caprolactam and their method of preparation

摘要

The present invention relates to mixtures single-phase and amorphous polymers, which can be used in particular for the manufacture of shaped articles by molding. / p & & p & according to the invention, the said mixtures comprise i, a semi - aromatic polyamide amorphous obtained from methyl - 2 pentamethylenediamine - 1,5, taken alone or in mixture with ethyl - 2 tetramethylenediamine - 1,4, and of isophthalic acid, taken alone or in mixture with terephthalic acid, and 2i a polyamide semi - lens of nylon type chosen from the group formed by the nylon 6,6, the nylon 6, the mixtures of these polymers and copolymers obtained from monomers leading to these nylons, the amount of polyamide or semi - lens of nylon type 2i which represents at most 40% of the weight of the polyamide semi - aromatic polyamide i + a semi - lens 2i. / p & & p & with of such mixtures, it is possible to improve the properties of resilience, at temperatures ranging from ambient temperature to - 25 grade (s), polyamide, a semi -.