Refractory brick with metal plate bonded by a chloroprene-phenolic adhesive

Claim 1

IN A BASIC REFRACTORY BRICK COMBINATION, A BASIC REFRACTORY BRICK HAVING A HOT FACE, A COLD FACE AND LATERAL FACES FORMING CORNERS, AN OXIDIZABLE METALLIC PLATE OF ANGLE FORMATION HAVING ONE SIDE CONFORMING TO ONE OF THE LATERAL FACES OF THE BRICK AND ANOTHER SIDE CONFORMING TO ANOTHER ADJOINING LATERAL FACE OF THE BRICK, EXTENDING AROUND THE CORNER BETWEEN THE ADJOINING LATERAL FACES OF THE BRICK IN CLOSE CONFORMITY WITH THE REFRACTORY OF THE BRICK AT THE CORNER, AND A CONTACT ADHESIVE BONDING THE REFRACTORY ON EACH OF SAID LATERAL FACES TO THE METAL OF THE PLATE ADJOINING THE SAME BY A STRONGLY ADHERENT BOND, WHEREIN SAID CONTACT ADHESIVE ESSENTIALLY CONSISTS OF A RESINOUS ELASTIC COATING COMPOSITION FORMING A TOUGH, FLEXIBLE, SHOCK RESISTANT, HEAT RESISTANT LAYER WHICH FIRMLY ADHERES TO THE REFRACTORY AND TO THE METAL, ESSENTIALLY CONSISTING OF 50 TO 200 PARTS BY WEIGHT OF POLYCHLOROPRENE INTERREACTED WITH A MIXTURE OF 100 PARTS BY WEIGHT OF OIL SOLUBLE HEAT HARDENING PHENOL-ALDEHYDE RESINOUS CONDENSATION PRODUCT OF FORMALDEHYDE AND A MONOHYDRIC PHENOL SUBSTITUTED ONLY AT THE PARA-POSITION BY A SUBSTITUENT FROM THE GROUP CONSISTING OF ALKYL AND MONONUCLEAR ARYL HAVING FROM 4 TO 10 CARBON ATOMS AND COMPATIBLE WITH THE POLYCHLOROPRENE, AND ABOUT 10 TO 200 PARTS BY WEIGHT OF MAGNESIUM OXIDE, PROVIDING A REACTION PRODUCT OF THE PHENOL-ALDEHYDE RESIN AND MAGNESIUM OXIDE WHICH IS NON-MELTING AT THE MELTING POINT OF SAID PHENOL-ALDEHYDE CONDENSATION PRODUCT.