Process for producing shaped articles from mixtures of polyamides

Claim 1

A PROCESS FOR PRODUCING SHAPED ARTICLES FROM HIGH MOLECULAR WEIGHT SYNTHETIC LINEAR POLYAMIDES WHICH COMPRISES THE STEPS OF INTIMATELY MIXING A FIRST FINELY DIVIDED SYNTHETIC LINEAR POLYAMIDE MATERIAL HAVING A RELATIVELY HIGH MELTING POINT WITH A SECOND FINELY DIVIDED SYNTHETIC LINEAR POLYAMIDE MATERIAL HAVING A MELTING POINT BELOW SAID FIRST POLYAMIDE, COMPRESSING SAID MIXTURE TO A PREDETERMINED SHAPE AT SUBSTANTIALLY ROOM TEMPERATURE IN A MOLD AT A PRESSURE REQUIRED TO ALLOW THE SHAPED ARTICLE TO BE REMOVED FROM THE MOLD, REMOVING SAID SHAPED ARTICLE FROM THE MOLD AND HEATING SAID ARTICLE IN THE SUBSTANTIAL ABSENCE OF OXYGEN FOR A TIME AND AT A TEMPERATURE REQUIRED TO MELT SAID SECOND POLYAMIDE BUT BELOW THAT WHICH WILL CAUSE ANY SUBSTANTIAL MOLTEN PHASE IN SAID FIRST POLYAMIDE, SAID FIRST POLYAMIDE HAVING A PARTICLE SIZE OF LESS THAN 40 MICRONS IN DIAMETER, AND SAID SECOND POLYAMIDE BEING PRESENT IN AN AMOUNT NOT EXCEEDING 70% BY WEIGHT OF SAID FIRST POLYAMIDE.