Process for fabrication of shaped articles from linear superpolycarbonamides to provide improved products

Claim 1

A SHAPED NYLON ARTICLE HAVING A MINIMUM CROSSSECTIONAL DIMENSION OF AT LEAST 10 MILS COMPRISING A LINEAR SUPER POLYCARBONAMIDE CONTAINING FROM ABOUT 0.005% TO 5% BY WEIGHT OF A FINELY-DIVIDED, SOLID NUCLEATING AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM PHENYLPHOSPHINATE, SODIUM ISOBUTYLPHOSPHINATE, MAGNESIUM OXIDE, MERCURIC BROMIDE, MERCURIC CHLORIDE, CADMIUM ACETATE, LEAD ACETATE, AND PHENOLPHTHALEIN, SAID NUCLEATING AGENT BEING DISPERSED THROUGHOUT THE SUPERPOLYCARBONAMIDE IN THE FORM OF PARTICLES HAVING MAXIMUM DIMENSIONS OF LESS THAN 1 MICRON, THE AFORESAID LINEAR SUPERPOLYCARBONAMIDE BEING SELECTED FROM THE GROUP CONSISTING OF THE POLYCARBONAMIDES MADE BY THE INTERMOLECULAR POLYMERIZATION OF LINEAR ALIPHATIC DIAMINES CONTAINING FROM 6 TO 10 CARBON ATOMS WITH LINEAR ALIPHATIC DICARBOXYLIC ACIDS CONTAINING FROM 2 TO 10 CARBON ATOMS AND THEIR AMIDE-FORMING DERIVATIVES, SAID THE POLYCARBONAMIDES MADE BY THE INTRAMOLECULAR POLYMERIZATION OF OMEGA-AMINOACIDS CONTAINING FROM 4 TO 12 CARBON ATOMS AND THEIR AMIDE-FORMING DERIVATIVES, SAID LINEAR SUPERPOLYCARBONAMIDE BEING CHARACTERIZED BY AN INTRINSIC VISCOSITY BETWEEN 0.3 AND 3.5 DL./G., DETERMINED IN M-CERSOL, AND A CRYSTALLINITY OF BETWEEN 20% AND 60%, AND BY HAVING A UNIFORM, SPHERULITIC TEXTURE CONTAINING NO NON-SPHERULITIC INTERSTICES WITHIN THE BODY OF THE ARTICLE, SAID SPHERULITIES HAVING DIAMETERS OF BETWEEN ABOUT 0.5 AND ABOUT 10 MICRONS.