HIGH-MOLECULAR POLYAMIDE COMPOSITION WITH IMPROVED FLOW BEHAVIOUR

摘要

The invention relates to a polyamide composition with improved flow behaviour that comprises at least 80-99.5 wt.% of a high-molecular polyamide and 0.5-20 wt.% of a polyamide oligomer that has a melting point that is higher than the melting point of the high-molecular polyamide, the amounts being relative to the total weight of the polyamide present in the composition. The high-molecular polyamide is preferably PA-6 or PA-4,6/6 copolymer and the polyamide oligomer is preferably chosen from the group comprising PA-6,6, PA-4,6, PA-4,6/6 copolyamide or copolyamides or mixtures thereof. The invention also relates to a process for improving the flow behaviour of a high-molecular polyamide composition by melt-mixing a high-molecular polyamide and a polyamide oligomer having a melting point that is higher than the melting point of the high-molecular polyamide at a melt temperature that is equal to or lower than the melting point of the polyamide oligomer and also a high-molecular polyamide composition obtainable with this process.