| 摘要 |
<p>An extruded, injection molded or blow molded pipe, fitting or component of synthetic plastics comprises a tubular body (1). The tubular body has inner and outer layers of a base material, and an intermediate layer of a base material with additive(s). The inner and intermediate layers consist of a polymeric material, which has additives against aggressive media. An extruded, injection molded or blow molded pipe, fitting or component of synthetic plastics comprises a tubular body composed of at least three layers. The three layers are inner and outer layers (2, 3) of a base material, and an intermediate layer (4) of a base material with additive(s). The inner and intermediate layers consist of a polymeric material. The polymeric material has additives against aggressive oxidizing and reduction media. The media are built into the amorphous regions of the part-crystalline polymer material of the inner layer. Filling materials and/or additives are worked into the amorphous regions of the polymer material of the intermediate layer as barrier materials for reducing a migration of the additives from the inner layer into the outer layer. The filling materials and/or additives and the polymer material constitute a composite material of the intermediate layer. An Independent claim is also included for a method for producing a starting material for the intermediate layer of the plastic pipe, fitting, or component.</p> |
