Granulate for detergent composition comprising nitrogen-containing builders

Patent metadata

Field	Value
Publication number	US-11746311-B2
Application number	US-201917274318-A
Country	US
Kind code	B2
Filing date	Sep 9, 2019
Priority date	Sep 14, 2018
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A granulate for a detergent composition, the granulate comprising a nitrogen-containing builder, wherein the granulate is at least partially coated with a coating material comprising an alkoxy polyalkylene glycol.

First claim

The invention claimed is:

1. A granulate for a detergent composition, the granulate comprising a nitrogen-containing builder, wherein the granulate is at least partially coated with a coating material comprising an alkoxy polyalkylene glycol,
wherein the alkoxy polyalkylene glycol has a weight average molecular weight of from 200 to 500 g/mol, and
wherein the alkoxy polyalkylene glycol is a liquid at 25° C.

2. The granulate according to claim 1 , wherein the alkoxy group of the alkoxy polyalkylene glycol is represented by the formula RO wherein R is a C1 to C20 alkyl group.

3. The granulate according to claim 1 , wherein the polyalkylene glycol of the alkoxy polyalkylene glycol is selected from the group consisting of a polyethylene glycol, a polypropylene glycol, a polybutylene glycol, and combinations of two or more thereof.

4. The granulate according to claim 1 , wherein the alkoxy polyalkylene glycol is a methoxy polyethylene glycol.

5. The granulate according to claim 1 , wherein the nitrogen-containing builder comprises an aminocarboxylate.

6. The granulate according to claim 1 , wherein the granulate and the coating material are present in a weight ratio of from 20:1 to 200:1.

7. A method of preparing the granulate for a detergent composition according to claim 1 , the method comprising:
(i) providing particles comprising the nitrogen-containing builder; and
(ii) at least partially coating the particles with a coating material comprising the alkoxy polyalkylene glycol.

8. The method according to claim 7 , wherein the step of at least partially coating the particles with the coating material comprising the alkoxy polyalkylene glycol comprises spray-coating the particles with the alkoxy polyalkylene glycol.

9. A detergent composition comprising the granulate according to claim 1 .

10. The detergent composition according to claim 9 , wherein the detergent composition is an automatic dishwashing composition or a laundry detergent composition.

11. The detergent composition according to claim 9 , wherein the composition further comprises a bleaching agent.

12. The detergent composition according to claim 9 , wherein the detergent composition is in the form of a solid.

13. The detergent composition according to claim 9 , wherein the nitrogen-containing builder is present in an amount of from 5 to 50 wt % by weight of the detergent composition, and/or
the detergent composition comprises a bleaching agent in an amount of from 1 to 50 wt % by weight of the detergent composition.

14. The detergent composition according to claim 9 , wherein the composition is storage stable for at least 12 weeks at 40° C. and 75% relative humidity.

15. A detergent product comprising the detergent composition according to claim 11 .

16. The detergent product according to claim 15 , wherein the product is:
in a unit dose form; and/or
housed within a water soluble or water dispersible film or container.

17. The detergent product according to claim 16 , wherein the product is housed within a polyvinyl alcohol film or container.

Assignees

• Reckitt Benckiser Finish Bv

Inventors

• Al-Bayati Alias Younis
• Roth Torsten
• Schmaelzle Claudia
• Stein Andrea

Classifications

• C11D3/3773

  in liquid compositions · CPC title

• C11D17/0039 Primary

  Coated compositions or coated components in the compositions, (micro)capsules · CPC title

• C11D3/33 Primary

  Amino carboxylic acids · CPC title

• C11D17/044

  Solid compositions · CPC title

• C11D1/721

  End blocked ethers · CPC title