Method of coating a surface with a composition comprising a furfuryl alcohol resin, cellulose, filler, and catalyst

Claim 1

IN A METHOD OF PRODUCING A COATING OF A FURAN RESIN ON THE SURFACE OF AN OBJECT TO BE PROTECTED, WHEREIN A COMPOSITION CONSISTING ESSENTIALLY OF 18 PARTS OF A PARTIALLY POLYMERIZED FURFURYL ALCOHOL RESIN, 14 PARTS OF AT LEAST ONE FILLER SELECTED FROM THE GROUP CONSISTING OF COKE FLOUR, ZINC DUST, BARIUM SULFATE, SILICA FLOUR, PORCELAIN DUST, CRUSHED BRICK, ASBESTOS FIBER, GLASS FIBERS, AND FIBERS OF SYNTHETIC RESINOUS PLASTICS, 1 PART OF CELLULOSE , 3 PARTS OF BENZOL, 76 PARTS OF ALCOHOL AND 20 PARTS OF XYLOL, ALL PROPORTIONS BEING EXPRESSED IN PARTS BY WEIGHT, IS FORMED INTO A HOMOGENEOUS MIXTURE AND A CATALYST FROM THE GROUP CONSISTING OF TOLUENE SULFONIC ACID, SULFAMIC ACID AND TOLUENE SULFONYL CHLORIDE IS ADDED TO THE RESULTING HOMOGENEOUS HARDENABLE COATING COMPOSITION, THE IMPROVEMENTS WHICH COMPRISES: COOLING THE COMPOSITION TO BELOW ROOM TEMPERATURE, AND TO BELOW ABOUT 50*F. BEFORE THE ADDITION OF THE CATALYST THERETO, WHEREBY THE INTERVAL OF TIME BEFORE REACTION IN SAID COMPOSITION IS INCREASED AS COMPARED WITH THE INTERVAL OF TIME BEFORE REACTION IN AN UNCOOLED MIXTURE, OF SILIMAR COMPOSITION, AND IN APPLYING SAID COOLED CATALYST-CONTAINING MIXTURE ONTO THE SURFACE TO BE COATED IN THE INTERVAL BEFORE REACTION, POLYMERIZATION AND HARDENING OF THE FURFURYL ALCOHOL RESIN HAVE OCCURED, WHEREBY THE SETTING, HARDENING AND POLYMERIZATION OF SAID RESIN TAKE PLACE IN THE COMPOSITION AFTER IT HAS BEEN APPLIED AS A COATING.