Polyphosphate compositions containing soap and 2-mercaptothiazoline

Claim 1

A SPRAY-DRIED DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 20% TO ABOUT 50% OF AN ALKALI METAL TRIPOLYPHOSPHATE WHICH IN AQUEOUS SOLUTION TARNISHES GERMAN SILVER, FROM ABOUT 5% TO ABOUT 15% TOTAL OF AT LEAST ONE ORGANIC NON-SOAP DETERGENT SELECTED FROM THE GROUP CONSISTING OF ORGANIC ANIONIC NON-SOAP DETERGENTS AND ORGANIC NONIONIC NON-SOAP DETERGENTS, FROM ABOUT 10% TO ABOUT 20% OF AN ALKALI METAL CARBONATE, ABOUT 10% TO AN ALKALI METAL SILICATE, FROM ABOUT 0.03% TO ABOUT 0.06% OF 2-MERCAPTOTHIAZOLINE BASED ON THE WEIGHT OF TRIPOLYPHOSPHATE, AND FROM ABOUT 1.4% TO ABOUT 3.0% OF A WATER-SOLUBLE ALKALI METAL SOAP BASED ON THE WEIGHT OF TRIPOLYPHOSPHATE, SAID SOAP BEING SELECTED FROM ACIDS HAVING AN ACYL GROUP OF FROM 8 TO 22 CAROF FATTY ACIDS HAVING AN ACYL GROUP OF FROM 8 TO 22 CARBON ATOMS; THE AMOUNTS OF SAID THIAZOLINE AND SOAP BEING SUFFICIENT TO INHINIT THE TARNISHING AND THE COMPONENTS OF THE COMPOSITION BEING EXPRESSED BY WEIGHT AT THE TIME OF MIXING THEROF AND PRIOR TO SPRAY DRYING.