USE OF POLYHYRIC ALCOHOLS FOR INCREASING THE IMPACT STRENGTH OF A WELDING SEAM AFTER HEAT AGING IN POLYAMIDES

摘要

The invention relates to the use of polyhydric alcohols having more than two hydroxyl groups in polyamide compositions which contain at least one polyamide for improving the impact strength of a welding seam after heat aging of shaped bodies produced from the polyamide composition, wherein during injection moulding at least two flow fronts of the melted polyamide composition meet one another and form at least one welding seam.