Non-combustible, phosphorus-containing condensation resins and process for their manufacture

Claim 1

THE PROCESS FOR THE MANUFACTURE OF NON-COMBUSTIBLE PHOSPHORUS- AND NITROGEN-CONTAINING CONDENSATION RESINS WHEREIN A REACTION PRODUCT, OF ONE MOL OF AN EPIHALOGENOHYDRIN SELECTED FROM THE GROUP CONSISTING OF EPICHLOROHYDRIN AND EPIBROMOHYDRIN WITH TWO MOLS OF TRIHYDROXYMETHYL PHOSPHINE, IS REACTED BY HEATING TO A TEMPERATURE OF 40*-200*C. WITH A POLYMETHYLOL-MELAMINE AND AT LEAST ONE NITROGENOUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREA, THIO-UREA, DICYANDIAMIDE, MONO- AND DI-METHYLOL DERIVATIVES OF THESE COMPOUNDS, AND MELAMINE, IN A RATIO OF ONE PART BY WEIGHT OF SAID REACTION PRODUCT AND AT LEAST 0.2 PART BY WEIGHT OF POLYMETHYLOLMELAMINE, THE COMBINED POLYMETHYLOL-MELAMINE AND NITROGENOUS COMPOUND BEING PRESENT IN AN AMOUNT UP TO 10 PARTS BY WEIGHT, SAID POLYMETHYLOL-MELAMINE BEING OBTAINED BY THE REACTION OF ONE MOL OF MELAMINE WITH 2-6 MOLS OF FORMALDEHYDE.