Patent ID: 6706790
Filing Date: 2004-03-16
Classification: C08K

Abstract:
A composition comprising a thermoplastic matrix based on semi-crystalline polyamide, and pigments comprising:(1) one or more black pigments comprising at least one black pigment of inorganic origin at a concentration by weight of between 0.05 and 2% of the overall composition; (2) one or more compounds which decreases the effect of light or U.V. radiation on the degradation of the polymeric material forming the matrix of the composition at a concentration by weight of between 0.05 and 5% of the overall composition; (3) nigrosine or a nigrosine derivative which decreases the rate of crystallization of the thermoplastic matrix at a concentration by weight of between 0.10 and 0.50% of the overall composition; and (4) CuI and KI at a concentration by weight of between 0.03% and 1% of the overall composition.