Impregnation and coating with splitoffs of vermiculite and products thereof

Claim 1

IN A METHOD OF PROVIDING METAL WITH A COATING OF A COMPOSITE OF METAL OXIDES AND SILICA MATERIAL, THE STEPS CONSISTING ESSENTIALLY OF HEATING THE METAL TO A TEMPERATURE SUFFICIENT TO OPEN THE PORES OF SAID METAL, AND TREATING THE HEATED METAL IN AN ATMOSPHERE OF A POWDER OF FINE CRYSTALLINE MATERIAL OF A PARTICLE SIZE WHICH PASSES THROUGH ABOUT A 400 TO A 500 MESH SIEVE AND CONSISTING ESSENTIALLY OF AN OILY FEELING COMPOSITE OF A UNIFORMLY APPEARING CRYSTALLINE FORM OF METAL OXIDES AND SILICA MATERIAL PREPARED BY HEATEXPANDING VERMICULITE TO PRODUCE EXFOLIATED VERMICULITE AND BY-PRODUCT DUST FINES CONSISTING ESSENTIALLY OF METAL OXIDES AND SILICA MATERIAL AND SCREENING AND SEPARATNG SAID DUST FINES FROM SAID EXFOLIATED VERMICULITE. THEREBY EFFECTING AN EMBEDDING OF THE SAID FINE CRYSTALLINE MATERIAL INTO THE PORES OF THE SURFACE OF THE METAL WHILE HEATED TO SAID TEMPERATURE, AND PROVIDING A THIN TIGHTLY ADHERENT COATING OF THE SAID METAL OXIDES AND SILICA MATERIAL ON SAID METAL MATERIAL.