| 摘要 |
<p>Thermoplastic moulding materials containing the following ingredients with regard to components A-F: A) 5-70 wt. % of at least one graft copolymer A) consisting of a rubber elastic base with a glass transition temperature below 0 and a grafted overlay made of a styrene compound and acrylonitrile or methacrylonitrile or mixtures thereof in addition to, optionally, other monoethylenically unsaturated monomers, B) 29 - 90 wt. % of a hard copolymer made of at least one styrene compound, acrylonitrile or methacrylonitrile or mixtures thereof and, optionally, other monoethylenically unsaturated monomers, C) 0 - 5 wt. % of at least one three-block copolymer X-Y-X with a middle block Y made of propylenoxide units and terminal blocks X made of ethylenoxide units, D) 0.01 - 5 wt. % of at least one butylated reaction product of cresol with dicyclopentadiene, E) 0. 01 -5 wt. % of at least one thiocarboxylic acid ester, F) 0.01 -5 wt. % of at least one alkaline metal salt or alkaline earth metal salt of a C6-C20carboxylic acid, G) 0 -30 wt. %, in relation to constituents A) - G), of other usual additives. The moulding materials exhibit a db*-value, after exposure to the atmosphere, of less than +5,0 after 100 hours of exposure to light and the atmosphere according to ISO 4892/2, method A, black panel temperature 65 C, colour measurement according to CIE-Lab in accordance with DIN 6174 and DIN 5033.</p> |
