Low pH granular detergent composition
AssigneeThe Procter & Gamble Company
InventorTerrence J. Porter
Life of this patent
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Abstract
A high density granular detergent composition having a pH (1% in distilled water) of from about 9.0 to about 10.0, that contains from 5% to about 50% anionic detergent surfactant and from about 3% to about 40% acid pyrophosphate is disclosed. The composition is formed by agglomeration of the acid pyrophosphate and a portion of the surfactant, preferably in a V-blender. The composition contains less than about 1%, but preferably is free of, citric acid.
Claims7
A granular detergent composition having a density of 600 gm/liter or above, and having a pH (1% in distilled water) of from about 9.0 to about 10, comprising by weight:
- (i) from 13.2% to about 50% detergent anionic surfactant;
- (ii) from about 3% to about 40% acid pyrophosphate;
- and
- (iii) less than about 1% of citric acid or salt thereof;
- and
- (iv) less than about 2% of alkali metal silicate;
- (v) an inorganic alkaline material
- wherein said detergent composition is formed by agglomeration of said acid pyrophosphate, said inorganic alkaline material and a portion of said detergent surfactant and there is substantially no alkali metal silicate present during said agglomeration.
Dependencies are inferred from the claim text.