Silicone resin remover and method

Claim 1

IN A PROCESS FOR REMOVING A HARDENED SILICONE RESIN GLAZE FROM AN ASSOCIATED ARTICLE HAVING A SURFACE CONTAINING IN WITHOUT APPRECIABLY ATTACKING SAID SURFACE, THE STEPS WHICH COMPRISE CONTACTING THE HARDENED SILICONE RESIN WITH A COMPOSITION ESSENTIALLY BY WEIGHT OF ABOUT .02-5% ALKALI METAL HYDROXIDE, 1-97% BY WEIGHT LIQUID HYDROGEN SOLVENT COMPRISING A CRUDE OIL DISTILLATION FRACTION HAVING A BOILING RANGE FALLING BETWEEN 212* AND 540* F. AND SUBSTANTIALLY THE BALANCE CO-SOLVENT SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL MONOMETHYL ETHER, DIETHYLENE GLYCOL MONOMETHYL ETHER, THEYLENE GLYCOL MONOPROPL ETHER, ETHYLENE GLYCOL MONOBUTYL ETHER, DIETHYLENE GLYCOL PROPYL ETHER, DIETHYLENE GLYCOL BUTYL ETHER, PROPYLENE GLYCOL METHYL ETHER, PROPYLENE GLYCOL ETHYL ETHER, DIPROPYLENE GLYCOL METHYL ETHER, ETHYLENE GLYCOL MONOETHYL ETHER, TRIPROPYLENE GLYCOL METHYL ETHER, AND DIETHYLENE GLYCOL MONOETHYL ETHER, SAID CO-SOLVENT BEING CAPABLE OF AND PRESENT IN SUFFICIENT AMOUNT TO DISSOLVE SUBSTANTIALLY ALL OF SAID ALKALI MEATAL BASE AND TO MIX WITH SAID CHLORINATED HYDROCARBON TO JFORAN A HOMOGENEOUS LIQUID, MAINTAINING SAID CONTACT FOR A TIME PERIOD SUFFICIENT TO MODIFY THE HARDENED SILICONE RESIN GLAZE, MAINTAINING SAID COMPOSITION AT ABOUT 55*-75* C. DURING THE CONTACT PERIOD, SEPARATING THE AFORESAID COMPOSITION FROM THE ARTICLE, AND REMOVING THE MODIFIED SILICONE RESIN BY RINSING THE SURFACE OF SAID ARTICLE WITH WATER.