Melamine-formaldehyde-polyamine condensation product

Claim 1

THE PROCESS OF PREPARING A WATER-SOLUBLE RESINOUS MATERIAL WHICH COMPRISES REACTING MELAMINE, FORMALDEHYDE AND A POLYFUNCTIONAL ALIPHATIC POLYAMINE CONDENSATION PRODUCT SELECTED FROM THE GROUP CONSISTING OF (1) AMMONIA AND A DIFUNCTIONAL HALOHYDRIN, (2) A POLYALKYLENE POLYAMINE AND A DIFUNCTIONAL HALOHYDRIN AND (3) A POLYALKYLENE POLYAMINE AND A DIHALOALKANE AT A TEMPERATURE BETWEEN ABOUT 20* C. AND ABOUT 100* C. UNTIL A VISCOSITY OF BETWEEN ABOUT 20 CENTIPOISES AND ABOUT 800 CENTIPOISES MEASURED AT 35% SOLIDS AND 25* C. IS OBTAINED, THEREAFTER NEUTRALIZING SAID RESINOUS MATERIAL, WHEREIN THE FORMALDEHYDE IS PRESENT IN AN AMOUNT GREATER THAN 6 MOLS PER MOL OF MELAMINE, WHEREIN SAID POLYAMINE HAS A CARBON TO NITROGEN RATIO NOT GREATER THAN 4:1, RESPECTIVELY, AND THE POLYFUNCTIONAL ALIPHATIC POLYAMINE CONDENSATION PRODUCT IS PRESENT IN AN AMOUNT TO YIELD BETWEEN ABOUT 0.5 AND ABOUT 10 ATOMS OF NITROGEN PER MOL OF MELAMINE AND WHEREIN THE PRODUCT PRODUCED IS INFINITELY DILUTABLE IN NEUTRALIZED WATER AT A TEMPERATURE BETWEEN ABOUT 25* C. AND 30* C.