Process for delivering chelant agglomerate into detergent composition for improving its storage stability, flowability and scoopability
AssigneeThe Procter & Gamble Company
InventorsWendell I. Norman, Dennis Lee Perkins
Life of this patent
Estimating the term…
Abstract
The present invention provides a process for preparation of a chelant composition by a non-spray-drying process, a process for improving one or more of flowability and scoopability of a laundry detergent composition, and a chelant agglomerate useful as an ad-mix in a particulate laundry detergent. In one aspect of the present invention, the process for preparation of a chelant composition by a non-spray-drying process includes the steps of admixing a transition metal chelant and an inorganic compound to form a mixture, aglomerating the mixture in an aqueous medium to form a chelant agglomerate and drying the chelant agglomerate.
Claims22
A process for preparation of a chelant composition by a non-spray-drying process, comprising the steps of:
- a) admixing a transition metal chelant and an inorganic compound to form a mixture;
- b) agglomerating said mixture in an aqueous medium to form a chelant agglomerate;
- and
- c) drying said chelant agglomerate
- wherein the inorganic compound is selected from the group consisting of sulfates, carbonates, silicates, aluminosilicates and mixtures thereof;
- and wherein the transition metal chelant is selected from the group consisting of diethylenetriaminepentaacetates;
- ethylenediamine disuccinate;
- and mixtures thereof;
- and
- wherein the chelant agglomerate resulting from step c) consists of said transition metal chelant and said inorganic compound.
A process for improving one or more of storage stability, flowability and scoopability of a laundry detergent composition, comprising the steps of:
- (a) providing a chelant composition prepared by a non-spray-drying process, comprising the steps of:
- (i) admixing a transition metal chelant and an inorganic compound to form a mixture;
- (ii) agglomerating said mixture in an aqueous medium to form a chelant agglomerate;
- and
- (iii) drying said chelant agglomerate;
- wherein the transition metal chelant is selected from the group consisting of diethylenetriaminepentaacetates, ethylenediamine disuccinate;
- and mixtures thereof;
- and
- wherein the chelant agglomerate resulting from step iii) consists of said transition metal chelant and said inorganic compound;
- and
- (b) incorporating said chelant composition into a particulate laundry detergent material in a weight ratio in a range of from about 0.05:99.95 to about 2:98, chelant composition to particulate laundry detergent material.
A chelant agglomerate useful as an ad-mix in a particulate laundry detergent, the chelant agglomerate consisting of:
- a transition metal chelant selected from the group consisting of diethylenetriaminepentaacetates;
- ethylenediamine disuccinate;
- and mixtures thereof;
- an inorganic compound selected from the group consisting of sulfates, carbonates, silicates, aluminosilicates and mixtures thereof;
- and
- water;
- said chelant agglomerate being formed by admixing said transition metal chelant and said inorganic compound to form a mixture, agglomerating said mixture in said water to form said chelant agglomerate and drying the chelant agglomerate.
Dependencies are inferred from the claim text.