Composition for cleaning metal cookware

Claim 2

A DETERGENT COMPOSITION IN FINE PARTICULATE FORM SUITABLE FOR USE IN REMOVING ADHERING CARBONIZED FOOD DEBRIS FROM METAL SURFACES COMPRISING IN ADMIXTURE: I. ONE PART BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF N-METHYL-2-PYRROLIDONE, N-ETHYL-2-PYRROLIDONE, N-ISOPROPYL-2-YRROLIDONE, AND 2-AMINO-2-METHYL1-PROPANOL, AND MIXTURES THEREOF, AND II. ABOUT 3 PARTS TO ABOUT 9 PARTS BY WEIGHT OF SEDIMENTARY KAOLIN.

Claim 3

A composition in accordance with claim 1 comprising in admixture: i. one part by weight of N-methyl-2-pyrrolidone, and ii. about 4 parts to about 6 parts by weight of sedimentary kaolin.

Claim 4

A composition in accordance with claim 1 wherein said sedimentary kaolin contains about 14% H2O, about 44.9% SiO2, and about 38.3% Al2O3 combined together in the molecular constitution of said kaolin.

Claim 5

A composition in accordance with claim 1 comprising about 10-25 percent of said solvent, about 65-90 percent of said kaolin, 0 to about 10% of a water-soluble salt dedusting agent, selected from the group consisting of sodium tripolyphosphate, potassium tripolyphosphate, sodium chloride, potassium chloride, sodium sulfate, potassium sulfate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, sodium dihydrogen orthophosphate, potassium dihydrogen orthophosphate, trisodium orthophosphate, tripotassium orthophosphate, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium metaborate, potassium metaborate, sodium metasilicate, potassium metasilicate, sodium citrate, potassium citrate, sodium sulfite and potassium sulfite and 0 to about 10% of a surfactant having emulsifying properties.

Claim 6

A composition in accordance with claim 1 comprising about 10-25 percent of said solvent, about 65-90 percent of said kaolin, 0 to about 10% of sodium tripolyphosphate dedusting agent, and 0 to about 10% of a surfactant having emulsifying properties.

Claim 7

A PROCESS FOR REMOVING HARDENED ADHERING FOOD DEBRIS FROM METAL SURFACES COMPRISING THE STEPS OF: I. COVERING SAID DEBRIS WITH A FLOWING, PARTICULATE MIXTURE COMPRISING ABOUT 3 PARTS TO ABOUT 9 PARTS BY WEIGHT OF SEDIMENTARY KAOLIN AND ONE PART BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF N-METHYL-2-PYRROLIDONE, N-ETHYL-2-PYRROLIDONE, N-ISOPROPYL-2-PYRROLIDONE, OR 2-AMINO-2-METHYL-1-PROPANOL, AND MIXTURES THEREOF, II. CONTACTING SAID MIXTURE WITH HOT WATER AT 120*F TO ABOUT 200*F, TO FORM AN AQUEOUS CLEANSING MEDIUM, III. ALLOWING SAID AQUEOUS CLEANSING MEDIUM TO STAND FOR AT LEAST 10 SECONDS AND UNTIL AT LEAST A PART OF SAID DEBRIS HAS LOOSENED, AND IV. RINSING SAID AQUEOUS CLEANSING MEDIUM AND SAID LOOSENED DEBRIS FROM SAID METAL SURFACE.

Claim 8

A PROCESS FOR REMOVING HARDENED ADHERING FOOD DEBRIS FROM METAL SURFACES COMPRISING THE STEPS OF: I. COVERING SAID DEBRIS WITH A FLOWING, PARTICULATE MIXTURE COMPRISING ABOUT 3 PARTS TO ABOUT 9 PARTS BY WEIGHT OF SEDIMENTARY KAOLIN AND ONE PART BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF N-METHYL-2-PYRROLIDONE, N-ETHYL-2-PYRROLIDONE, N-ISOPROPYL-2-PYRROLIDONE, OR 2-AMINO-2-METHYL-1-PROPANOL, AND MIXTURES THEREOF, II. CONTACTING SAID MIXTURE WITH HOT WATER AT 120*F TO ABOUT 200*F, TO FORM AN AQUEOUS CLEANSING MEDIUM, III. ALLOWING SAID AQUEOUS CLEANSING MEDIUM TO STAND FOR AT LEAST 10 SECONDS AND UNTIL AT LEAST A PART OF SAID DEBRIS HAS LOOSENED, AND IV. RINSING SAID AQUEOUS CLEANSING MEDIUM AND SAID LOOSENED DEBRIS FROM SAID METAL SURFACE.