Patent ID: 6150324
Filing Date: 2000-11-21
Classification: C11D

Abstract:
An alkaline detergent composition having improved organic soil removal capacity, said detergent comprising, in a solid block:(a) about 0.1 to 70 wt. % of an alkali metal carbonate detergent;(b) about 1 to about 10 wt. % of a soil removing surfactant; and(c) a sequestrant comprising an organic phosphonate and an inorganic condensed phosphate, wherein the organic phosphonate is present in an amount of about 0.1 to 15 wt. % of the composition, and the inorganic condensed phosphate is present in an amount of about 10 to 40 wt. % of the composition, the sequestrant comprising at least about 1 part by weight of organic phosphonate composition per each one hundred parts by weight of the inorganic condensed phosphate; wherein there is less than about 9 wt % total phosphorus in the composition; andwherein the combination of the inorganic condensed phosphate and the organic phosphonate in the sequestrant provides for improved organic soil removal.