Automatic dishwashing compositions having a detergent granule

• US 10,392,586 B2
• Filed: 08/06/2013
• Issued: 08/27/2019
• Est. Priority Date: 08/15/2012
• Status: Active Grant

• Current Assignee: Reckitt Benckiser Finish B.V. (Reckitt Benckiser Group PLC)
• Original Assignee: Reckitt Benckiser Finish B.V. (Reckitt Benckiser Group PLC)
• Inventors: Campbell, Stuart, Hahn, Karlheinz, Kirchhoffer, Laurent, Krubasik, Lucia, Preuschen, Judith, Van Loyen, Dietmar
• Primary Examiner(s): Delcotto, Gregory R
• Application Number:
  US14/421,431
• Publication Number:
  US 20150166943A1
• Time in Patent Office: 2,212 Days
• Field of Search: 510220, 510224, 510229, 510499, 510511, 134 252
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 17/044 Solid compositions
• CPC Class Codes: C11D 17/045 Multi-compartment
• CPC Class Codes: C11D 17/06 Powder; Flakes; Free-flowing mixtures; Sheets
• CPC Class Codes: C11D 3/08 Silicates
• CPC Class Codes: C11D 3/33 Amino carboxylic acids
• CPC Class Codes: C11D 3/3753 Polyvinylalcohol; Ethers or esters thereof

Abstract

The invention relates to detergent compositions comprising granular non-phosphate builder. The granules comprise an amino acid based builder, preferably MGDA, and s silicate. The composition is housed in a rigid PVOH capsule.

Claims

1. A method of automatic dishwashing in an automatic dishwashing machine, comprising:

providing a monodose automatic dishwashing detergent composition housed within a rigid polyvinyl alcohol capsule having one or more compartments; and

washing at least one aluminum-comprising article in an automatic dishwashing machine using the monodose automatic dishwashing detergent composition, wherein corrosion of the aluminum by the monodose automatic dishwashing detergent composition is inhibited;

wherein the monodose automatic dishwashing detergent composition consists of;

at least one non-ionic surfactant;

sodium citrate;

a bleaching compound;

a source of alkalinity;

a binder;

enzymes;

a dye;

an antifoam agent;

a fragrance;

a bleach activator;

a bleach catalyst;

a sulfonated polymer; and

at least one granule comprising, within the same granule, silicate together with methylglycine diacetic acid;

wherein the granule comprises 70-90% by weight methylglycine diacetic acid and 5-11% by weight of silicate,

wherein the total amount of builder present in the monodose automatic dishwashing detergent composition is up to 60% by weight, and

wherein the bleaching compound is a percarbonate bleach.

2. The method according to claim 1, wherein the at least one granule comprises at least one further ingredient.

3. The method according to claim 1, wherein the rigid polyvinyl alcohol capsule is selected from the group consisting of a thermoformed structure, a vacuum formed structure, an injection moulded structure, and a combination thereof.

4. The method according to claim 1, wherein the at least one granule further comprises:

0-15% by weight of optional ingredients.

5. The method according to claim 1, wherein the at least one granule has a diameter of 0.01 mm to 5 mm.

6. The method according to claim 1, wherein the composition comprises a plurality of the granules.

7. The method according to claim 1, wherein

the at least one non-ionic surfactant is present in an amount of 2% to 10% by weight based on the total weight of the detergent composition;

the sulfonated polymer is present in an amount of 0.1 to 10 wt % by weight based on the total weight of the detergent composition;

the antifoam agent is present in an amount of less than 0.5 wt % by weight based on the total weight of the detergent composition;

and the binder is present in an amount of about 4 wt % by weight based on the total weight of the detergent composition.

8. A method of automatic dishwashing in an automatic dishwashing machine, comprising:

providing a monodose automatic dishwashing detergent composition housed within a rigid polyvinyl alcohol capsule having one or more compartments; and

washing at least one aluminum-comprising article in an automatic dishwashing machine using the monodose automatic dishwashing detergent composition, wherein corrosion of the aluminum by the monodose automatic dishwashing detergent composition is inhibited; and

wherein the monodose automatic dishwashing detergent composition consists of;

at least one granule consisting of, within the same granule, methylglycine diacetic acid (MGDA), silicate and water;

percarbonate bleach;

at least one co-builder;

a source of alkalinity;

a binder;

enzymes;

a dye;

an antifoam agent;

a fragrance;

at least one non-ionic surfactant; and

a sulfonated polymer,

wherein the MGDA is present in the at least one granule in an amount of 70-90% by weight and the silicate is present in the at least one granule in an amount of 5-11% by weight, with the balance being water, and

wherein the total amount of builder present in the monodose automatic dishwashing detergent composition is up to 60% by weight.

9. The method according to claim 8, wherein

the at least one non-ionic surfactant is present in an amount of 2% to 10% by weight based on the total weight of the detergent composition;

the sulfonated polymer is present in an amount of 0.1 to 10 wt % by weight based on the total weight of the detergent composition;

the antifoam agent is present in an amount of less than 0.5 wt % by weight based on the total weight of the detergent composition;

and the binder is present in an amount of about 4 wt % by weight based on the total weight of the detergent composition.