METHOD OF MAKING IMPROVED POLYOXYMETHYLENE MOLDING COMPOSITION CHARACTERIZED BY LOW DEPOSIT ON MOLD DIE

摘要

The mold deposit problem commonly associated with polyoxymethylene molding compositions which creates a non-uniform surface on a molded article effectively is minimized. The polyoxymethylene polymer initially is heated(as described) while in admixture with about 1 to about 4 percent by weight based upon the weight of the oxymethylene polymer of an aromatic polycarbonate (as defined). In a preferred embodiment a minor quantity of malonamide also is admixed with polyoxymethylene polymer and the aromatic polycarbonate during heating.