| abstract |
The present invention relates to the use of at least one impact modifier having a refractive index IR 1 in a polyamide matrix consisting of a mixture of amorphous polyamide and semi-crystalline polyamide, said matrix having a refractive index IR 2 , to The difference IR 1 ‑IR 2 expressed in absolute value does not exceed 0.006 for the production of transparent compositions having a fatigue strength at ‑10°C under a fatigue test known as notched "Ross‑Flex" greater than 50000. |