Patent ID: 6017864
Filing Date: 2000-01-25
Classification: C11D

Abstract:
A method of manufacturing a solid block functional composition, said method stabilizing the components of the composition and inhibiting or reducing the hydrolytic instability of condensed phosphate sequestering agents, which method comprises(i) combining:(a) an effective amount of an inorganic source of alkalinity;(b) at least about 10 wt-% of a condensed phosphate sequestering agent;(c) an effective stabilizing and reversion inhibiting amount of a reversion inhibitor, the inhibitor comprising a C.sub.4 to C.sub.6 monosaccharide or a disaccharide comprising sucrose, maltose, lactose or mixtures thereof, to form a blended mass; and(ii) forming the blended mass into a solid;wherein less than about 15 wt-% of the condensed phosphate sequestering agent is reverted.