Back to results
US 5,635,467 AGranted
Powdered composition exhibiting increased liquid surfactant loading for free flowing powder detergents
AssigneeAmway Corporation
InventorDavid S. Staley
Life of this patent
Estimating the term…
Abstract
A granular, powdered detergent comprising a blend of first and second components, said first component comprising a first portion of a flowable powder detergent builder with a liquid surfactant, and an effective amount of a finely divided barrier particle material and a second component comprising a second portion of flowable powder detergent builder, such that the first portion of detergent builder comprises from about 10% to about 90% of the total amount of detergent builder in the resulting composition.
Claims13
A powdered composition comprising:
- a blend of first and second components, said first component comprising a first portion of flowable powder detergent builder particles selected from the group consisting of sodium carbonate, sodium aluminum silicate, pentasodium triphosphate, trisodium nitrilotriacetate, citrates, sulfates and mixtures thereof, a liquid surfactant adsorbed into said builder particles, and an amount of finely divided, water insoluble, silica barrier particles on the surface of said surfactant-containing detergent builder particles which is effective to provide a barrier between the surfactant-containing detergent builder particles and the second component;
- and
- said second component comprising a second portion of detergent builder which is substantially free of surfactant, said builder selected from the group consisting of sodium carbonate, sodium aluminum silicate, pentasodium triphosphate, trisodium nitrilotriacetate, citrates, sulfates and mixtures thereof;
- wherein said first portion of said detergent builder comprises between about 10% and about 75% of the combined total of said first portion of said detergent builder and said second portion of said detergent builder;
- wherein the total of said first portion and said second portion of flowable powder detergent builder constitutes from about 40% to about 95% of the total of said first portion and said second portion of said flowable powder detergent builder, said finely divided silica barrier particles, and said liquid surfactant;
- and
- wherein said finely divided silica barrier particles constitute from about 0.5% to about 5% of the total of said first portion and said second portion of said flowable powder detergent builder, said finely divided silica barrier particles, and said liquid surfactant.
4 more elements
Dependencies are inferred from the claim text.