| abstract |
composed of multilayers with partially aromatic polyamide layers. a multilayer compound containing the following layers: i. a first layer (layer i) of a molding mass containing at least 40% by weight of the following components: 1) 60 to 99 parts by weight of a hexamethylenediamine, terephthalic acid and dicarboxylic acid-based copolyamide aliphatic having 8 to 19 carbon atoms as well as 2) 40 to 1 parts by weight of an olefinic copolymer as an impact modifier, with the sum of parts by weight of 1) and 2) yielding 100; and ii. a second layer (layer ii) of a molding mass containing at least 60% by weight of a mixture of the following components: 1) 75 to 100 parts by weight of a partially aromatic copolyamide and 2) 25 to 0 parts by weight of an olefin copolymer as impact modifier is provided that in the molding mass of layer ii the mixture of components 1) and 2) contains at least 5 parts by weight less olefin copolymer than in The layer I molding mass exhibits high dimensional heat stability, very good impact resistance, high tear elongation as well as good adhesion to the layers. |