Process for bonding a tekpglymer

Claim 1

A PROCESS FOR FORMING A PORTECTIVE FILM COATING WHICH COMPRISES APPLYING A COATING TO A SURFACE, SAID COATING BEING AN ADMIXTURE OF A DIAMETER LOWER ALKYLETHER OF LOWER ALKYLENE GLYCOLS WITH A TERPOLYMER, SAID TERPOLYMER BEING FORMED BY COPOLYMERIZING IN AN INERT SOLVENT FROM 50 TO 70 PARTS STYRENE, FROM 10 TO 30 PARTS OF A LOWER ALKYL ESTER OF ACRYLIC ACID AND FROM 10 TO 30 PARTS OF GLYCIDYL METHACRYLATE AND SAID DIAMINO LOWER ALKYLETHER OF LOWER ALKYLENE GLYCOLS BEING IN SAID ADMIXTURE IN AN AMOUNT EQUAL TO AT LEAST 10 PERCENT BY WEIGHT OF SAID TERPOLYMER, HEATING SAID COATING ON SAID SURFACE TO A TEMPERATURE OF FROM 50-125*C., REMOVING SAID HEATED COATING FROM SAID SURFACE AS A SELF-SUSTAINING FILM, APPLYING SAID SELF-SUSTAINING FILM TO A METAL SUBSTRATE AND HEATING SAID SELF-SUSTAINING FILM TO A TEMPERATURE OF AT LEAST 150* C. WHEREUPON THE FILM ADHERES TO THE METAL SUBSTRATE TO FORM A PROTECTIVE COATING.