Thermoplastic melamine-sulfonamideformaldehyde resinous materials and process for making same

Claim 1

A COMPLETELY CONDENSED, THERMOPLASTIC RESIN CONSISTING ESSENTIALLY OF THE CONDENSATION PRODUCT OF A FIRST COMPONENT (A) SELECTED FROM THE CLASS CONSISTING OF (A) A MIXTURE OF AT LEAST ONE ALDEHYDE COMPONENT ENTIRELY SELECTED FROM THE CLASS CONSISTING OF FORMALDEHYDE AND PARAFORMALDEHYDE AND AT LEAST ONE AROMATIC MONOSULFONAMIDE HAVING TWO REACTIVE AMIDE HYDROGENS, WHERE THE SULFONAMIDO GROUP IS ATTACHED DIRECTLY TO THE AROMATIC NUCLEUS THROUGH THE SULFUR ATOM, AND (B) A THERMOPLASTIC CONDENSATION PRODUCT OF THE CONSTITUENTS OF MIXTURE (A), AND A SECOND COMPONENT (B) SELECTED FROM THE CLASS CONSISTING OF (C) A MIXTURE OF AT LEAST ONE ALDEHYDE COMPONENT ENTIRELY SELECTED FROM THE CLASS CONSISTING OF FORMALDEHYDE AND PARAFORMALDEHYDE AND AT LEAST ONE MELAMINE COMPOUND SELECTED FROM THECLASS CONSISTING OF MELAMINE, ALKYL MELAMINES HAVING NO MORE THAN ONE ALKYL SUBSTITUTED AMIDO NITROGEN, AND MONOHYDRIC ALKANOL MODIFIED METHYLOL AND ALKYL METHYLOL MELAMINES, AND (B) A THERMOFUSIBLE PARTIAL CONDENSATION PRODUCT OF THE CONSTITUENTS OF MIXTURE (C), THE AMOUNT OF SAID SECOND COMPONENT (B) BEING AN AMOUNT, NOT EXCEEDING ABOUT 50% BY WEIGHT OF SAID COMPONENT (A), SUFFICIENT TO RENDER SAID COMPLETELY CONDENSED, THERMOPLASTIC RESIN SUBSTANTIALLY INSOLUBLE IN AROMATIC HYDROCARBON SOLVENTS BUT INSUFFICIENT TO RENDER IT THERMOSETTING.