Method and composition for chemically polishing metals

Claim 1

A BATH FOR CHEMICALLY POLISHING AND DESCALING STAINLESS STEEL SURFACES WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS SOLUTION CONTANING ABOUT 2% TO 10% BY WEIGHT OF HYDROCHLORIC ACID, ABOUT 1% TO 8% OF NITRIC ACID, ABOUT 0.1% TO 20% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (1) CONDENSATION PRODUUCTS OF 1 MOLE OF PHENOL WITH ABOUT 5-30 MOLES OF ETHYLENE OXIDE, (2) CONDENSATION PRODUCTS OF 1 MOLES OF AN ALKYL PHENOL HAVING UP TO ABOUT 15 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-30 MOLES OF ETHYLENE OXIDE, (3) CONDENSATION PRODUCTS OF 1 MOLE OF AN ALKYL AMINE HAVING ABOUT 10-20 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-50 MOLES OF ETHYLENE OXIDE, (4) CONDENSATION PRODUCTS OF 1 MOLE OF AN ALIPHATIC ALCOHOL HAVING ABOUT 10-20 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-50 MOLES OF ETHYLENE OXIDE, (5) CONDENSATION PRODUCTS OF 1 MOLE OF A POLYPROPYLENE GLYCOL CONTAINING ABOUT 10-50 PROPYLENE OXIDE UNITS WITH ABOUT 4-160 MOLES OF ETHYLENE OXIDE, AND (6) MIXTURES THEREOF, AND THE REMAINDER WATER.

Claim 3

THE METHOD OF DESCALING AND POLISHING A STAINLESS STEEL SURFACE WHICH COMPRSES CONTACTING SAID SURFACE WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF ABOUT 2% TO 10% BY WEIGHT OF HYDROCHHLORIC ACID, ABOUT 1% TO 8% OF NITIRC ACID, ABOUT 0.1% TO 20% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (1) CONDENSATION AN ALKYL PHENOL HAVING UP TO ABOUT 15 CARBOB ATOMS IN PRODUCTS OF 1 MOLE OF PHENOL WITH ABOUT 5-30 MOLES OF ETHYLENE OXIDE, (2) CONDENSATION PRODUCTS OF 1 MOLE OF THE ALKYL GROUP WITH BOUT 5-30 MOLES OF ETHYLENE OXIDE, (3) CONDENSATION PRODUCTS OF 1 MOLE OF AN ALKYL AMINE HAVING ABOUT 10-20 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-50 MOLES OF ETHYLENE OXIDE, (4) CON: DENSATION PRODUCTS OF 1 MOLE OF AN SLIPHATIC ALCOHOL HAVING ABOUT 10-20 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-50 MOLES OF ETHYLENE OXIDE, (5) CONDENSATION PRODUCTS OF 1 MOLE OF A POLYPROPYLENE GLYCOL CONTAINING ABOUT 10-50 PROPYLENE OXIDE UNITS WITH ABOUT 4-150 MOLES OF ETHYLENE OXIDE, AND (6) MIXTURES THEREOF, AND THE REMAINDER WATER FOR A PERIOD OF TIME AND AT AN ELEVATED TEMPERATURE SUFFICIENT TO REMOVE SCALE AND PRODUCE A BRIGHT POLISHED SURFACE.

Claim 4

THE METHOD OF DESCALING AND POLISHING A STAINLESS STEEL SURFACE WHICH COMPRSES CONTACTING SAID SURFACE WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF ABOUT 2% TO 10% BY WEIGHT OF HYDROCHHLORIC ACID, ABOUT 1% TO 8% OF NITIRC ACID, ABOUT 0.1% TO 20% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (1) CONDENSATION AN ALKYL PHENOL HAVING UP TO ABOUT 15 CARBOB ATOMS IN PRODUCTS OF 1 MOLE OF PHENOL WITH ABOUT 5-30 MOLES OF ETHYLENE OXIDE, (2) CONDENSATION PRODUCTS OF 1 MOLE OF THE ALKYL GROUP WITH BOUT 5-30 MOLES OF ETHYLENE OXIDE, (3) CONDENSATION PRODUCTS OF 1 MOLE OF AN ALKYL AMINE HAVING ABOUT 10-20 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-50 MOLES OF ETHYLENE OXIDE, (4) CON: DENSATION PRODUCTS OF 1 MOLE OF AN SLIPHATIC ALCOHOL HAVING ABOUT 10-20 CARBON ATOMS IN THE ALKYL GROUP WITH ABOUT 5-50 MOLES OF ETHYLENE OXIDE, (5) CONDENSATION PRODUCTS OF 1 MOLE OF A POLYPROPYLENE GLYCOL CONTAINING ABOUT 10-50 PROPYLENE OXIDE UNITS WITH ABOUT 4-150 MOLES OF ETHYLENE OXIDE, AND (6) MIXTURES THEREOF, AND THE REMAINDER WATER FOR A PERIOD OF TIME AND AT AN ELEVATED TEMPERATURE SUFFICIENT TO REMOVE SCALE AND PRODUCE A BRIGHT POLISHED SURFACE.