Method of producing cresol-formaldehyde polymer coating compositions

Claim 1

A METHOD OF PRODUCING A CRESOL FORMALDEHYDE POLYMER COATING COMPOSITION CINTAINING ABOUT 25 TO 97 PARTS BY WEIGHT OF THE POLYMER, SAID POLYMER BEING SUBSTANTIALLY INSOLUBLE IN LIQUID ALIPHATIC HYDROCARBONS AFTER CURING WHICH COMPRISES HEATING A MIXTURE OF THE CRESOL AND FORMALDEHYDE CONTAINING ABOUT 1/4 TO 5 MOLS OF FORMALDEHYDE PER MOLE OF CRESOL, IN THE PRESENCE OF A BASIC CATALYST TO EFFECT POLYMERIZATION UNTIL THE FORMALDEHYDE IS VIRTUALLY ALL REACTED AND THE PRODUCT WHEN COOLED TO ABOUT 700 TO 120*F. IS IN THE FLUID STATE, QUENCHING THE REACTION MIXTURE WITH WATER, IMMEDIATELY REMOVING CATALYST AND WATER FROM THE REACTION MIXTURE, REHEATING THE REACTION MIXTURE TO POLYMERIZE IT UNTIL IT APPROACHES A SEMI-SOLID STATE WHEN AT ROOM TEMPERATURE, COOLING THE REACTION PRODUCT, ADDING TO THE REACTION PRODUCT ABOUT 3 TO 10 PARTS BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF LOW BOILING, LOWER ALIPHATIC ALCOHOLS AND LOW BOILING, LOWER ALIPHATIC KETONES, SAID ALCOHOLS AND KETONES BEING VOLATILE UNDER NORMAL ATMOSPHERIC CONDITIONS, AND MIXING ABOUT 5 TO 60 PARTS BY WEIGHT OF AN INORGANIC FILLER WITH THE REACTION PRODUCT-SOLVENT MIXTURE.

Claim 2

A METHOD OF PRODUCING A CRESOL FORMALDEHYDE POLYMER COATING COMPOSITION CINTAINING ABOUT 25 TO 97 PARTS BY WEIGHT OF THE POLYMER, SAID POLYMER BEING SUBSTANTIALLY INSOLUBLE IN LIQUID ALIPHATIC HYDROCARBONS AFTER CURING WHICH COMPRISES HEATING A MIXTURE OF THE CRESOL AND FORMALDEHYDE CONTAINING ABOUT 1/4 TO 5 MOLS OF FORMALDEHYDE PER MOLE OF CRESOL, IN THE PRESENCE OF A BASIC CATALYST TO EFFECT POLYMERIZATION UNTIL THE FORMALDEHYDE IS VIRTUALLY ALL REACTED AND THE PRODUCT WHEN COOLED TO ABOUT 700 TO 120*F. IS IN THE FLUID STATE, QUENCHING THE REACTION MIXTURE WITH WATER, IMMEDIATELY REMOVING CATALYST AND WATER FROM THE REACTION MIXTURE, REHEATING THE REACTION MIXTURE TO POLYMERIZE IT UNTIL IT APPROACHES A SEMI-SOLID STATE WHEN AT ROOM TEMPERATURE, COOLING THE REACTION PRODUCT, ADDING TO THE REACTION PRODUCT ABOUT 3 TO 10 PARTS BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF LOW BOILING, LOWER ALIPHATIC ALCOHOLS AND LOW BOILING, LOWER ALIPHATIC KETONES, SAID ALCOHOLS AND KETONES BEING VOLATILE UNDER NORMAL ATMOSPHERIC CONDITIONS, AND MIXING ABOUT 5 TO 60 PARTS BY WEIGHT OF AN INORGANIC FILLER WITH THE REACTION PRODUCT-SOLVENT MIXTURE.