Method of coating an article with a powdered resin composition and method of making the composition

Claim 1

THE METHOD FOR THE DEPOSITION OF A COATING ON AN ARTICLE WHICH COMPRISES COATING THE ARTICLE WITH A FREEFLOWING POWDERED RESINOUS COMPOSITION HAVING A PARTICLE SIZE WITHIN THE RANGE OF FROM ABOUT 5 MICRONS TO ABOUT 600 MICRONS AND COMPRISING AT LEAST ABOUT 20% OF A MIXTURE OF A FUSIBLE EPOXY RESIN AND A FUSIBLE PHENOL ALDEHYDE CONDENSATION RESIN WHILE SAID ARTICLE IS AT A ELEVATED TEMPERATUE ABOVE THE SINTERING TEMPERATURE OF THE EPOXY RESIN AND OF THE PHENOL ALDEHYDE CONDENSATION RESIN BUT BELOW A TEMPERATURE WHICH WILL CAUSE ANY SUBSTANTIAL DECOMPOSITION OF THE SAID RESIN WITHIN THE BRIEF TIME IN WHICH THE SAID RESINS ARE SUBJECTED TO THE ELEVATED TEMPERATURE, FUSING THE SAID RESINS TO PRODUCE A CONTINOUS COATING ON A SURFACE OF THE SAID ARTICLE AND CURING THE COATING TO CAUSE A CHEMICAL CROSS-LINKING BETWEEN THE EPOXY RESIN AND THE PHENOL ALDEHYDE CONDENSATION RESIN PRODUCOF THE ARTICLE.