Patent ID: 6410495
Filing Date: 2002-06-25
Classification: C11D

Abstract:
A continuous extruded or cast solid detergent composition comprising: a solidified mixture comprising:(a) about 10 to 80 wt % of Na2CO3; (b) an alkali metal silicate having a M2O:SiO2 ratio of about 1:1 to 1:5; and (c) an effective amount of an organic phosphonate hardness sequestering agent comprising a potassium salt; â€ƒwherein the mixture hardens to a solid form within about 1 minute to about 20 minutes, and the composition comprises about 5 to 20 wt % anhydrous sodium carbonate and binding agent comprising sufficient amounts of hydrated sodium carbonate and phosphonate comprising a potassium salt, to form the composition, and the composition provides metal protection and comprises either no second source of alkalinity or less than a solidification interfering amount of a second source of alkalinity.