ANHYDROUS TOOTHPASTE FORMULATION
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Abstract
AN ANHYDROUS TOOTHPASATE BASE IS PREPARED USING THE FOLLOWING INDREDIENTS: (1) AN OIL HAVING A VISCOSITY OF 100 TO 300 CENTIPOISES, SUCH AS MINERAL OIL, LIGHT LIQUID PETROLATUM THICKENED TO THE NECESSARY VISCOSITY, OR AN ANTIOXIDANT STABILIZED VEGETABLE OIL; (2) A COMBINATION OF POLYETHYLENE GLYCOLS HAVING A VISCOSITY OF 2200 TO 3400 CENTIPOISES WITH MOLECULAR WEIGHTS RANGING FROM 550 TO 6000; (3) A NON/TOXIC, NON-IONIC EMULSIFIER WHICH IS A MIXTURE OF GLYCERIDES OF C12 TO C17 FAT-FORMING FATTY ACIDS; (4) AT LEAST ONE BINDING AGENT SELECTED FROM POLYVINYLPYRROLIDONE HAVING AN AVERAGE MOLECULAR WEIGHT OF 40,000 AND A COLLOIDAL MAGNESIUM ALUMINUM SILICATE; AND (5) A COMPOUND HAVING A NEGATIVE HEAT OF HYDRATION WHICH CAN BE A HEXAHYDRIC ALCOHOL SUCH AS MANNITOL OR INOSITOL. TO THIS BASE, 30% TO 70% OF AN ABRASIVE MAY BE ADDED. THE ABRASIVE MAY BE ALUMINUM HYDRATE AND/OR CALCIUM SULFATE AND CAN CONTAIN A SMALL AMOUNT OF ALUMINUM SILICATE. DENTRIFRICE ADDITIVES SUCH AS ENZYMES, BLEACHING AGENTS WHICH ACHIEVE WHITENING AND BRIGTENING EFFECTS, FLUORIDES, AND THE LIKE, WHICH ARE INCOMPATIBLE WITH STANDARD HYDROUS TOOTHPASTE FORMULATIONS WILL REMAIN STABLE AND ACTIVE WHEN ADDED TO THIS ANHYDROUS TOOTHPASTE BASE. TASTE, CONSISTENCY AND FOAMING PROPERTIES OF THE PASTE ARE EQUIVALENT TO HYDROUS TOOTHPASTE FORMULATIONS.
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