Fast dissolving solid detergent

• US 9,267,097 B2
• Filed: 02/24/2014
• Issued: 02/23/2016
• Est. Priority Date: 02/15/2007
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Bartelme, Michael, Marquardt, Julie, Lentsch, Steve E., Man, Victor F., Leafblad, Brian Robert
• Primary Examiner(s): Douyon, Lorna M
• Application Number:
  US14/187,827
• Publication Number:
  US 20140323385A1
• Time in Patent Office: 729 Days
• Field of Search: 510/445, 510/446, 510/108, 510/224, 510/294, 510/298, 510/451, 510/509, 510/514, 510/521
• US Class Current: 1/1
• CPC Class Codes: C11D 1/04 Carboxylic acids or salts thereof soap C11D9/00
• CPC Class Codes: C11D 10/04 based on mixtures of surface-active non-soap compounds and soap
• CPC Class Codes: C11D 17/0047 Detergents in the form of bars or tablets
• CPC Class Codes: C11D 17/06 Powder; Flakes; Free-flowing mixtures; Sheets
• CPC Class Codes: C11D 3/044 Hydroxides or bases
• CPC Class Codes: C11D 3/08 Silicates
• CPC Class Codes: C11D 3/10 Carbonates ; Bicarbonates
• CPC Class Codes: C11D 3/2075 Carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/2079 Monocarboxylic acids-salts thereof

Abstract

A solid block or unit dosed detergent composition as described which can be utilized in a variety of applications for cleaning surfaces and objects, removing suspending soils, and rinsing easily. The detergent composition, when exposed to an aqueous solution such as water, dissolves quickly and completely to create the use solution.

Claims

1. A solid detergent composition comprising:

1 to 20 wt.% of a surfactant;

a solidification agent; and

at least 0.2 wt.% of a branched fatty acid disintegrator selected from the group consisting of isopentanoic acid, neopentanoic acid, isohexanoic acid, neohexanoic acid, isoheptanoic acid, neoheptanoic acid, isooctanoic acid, neooctanoic acid, isononanoic acid, neononanoic acid, isodecanoic acid, neodecanoic acid, and salts and mixtures thereof;

wherein the solid detergent composition has a dissolution rate when exposed to 4000 mL of aqueous solution at 155°

F. of at least 30g/minute and is free of bleaching agents; and

wherein a use solution prepared from the solid detergent composition has a pH of at least about 8.

2. The solid detergent composition of claim 1, wherein the branched fatty acid disintegrator is selected from the group consisting of isononanoic acid, isooctanoic acid, neodecanoic acid, neopentanoic acid, and salts and mixtures thereof.

3. The solid detergent composition of claim 1, wherein the branched fatty acid disintegrator is sodium isononanoate.

4. The solid detergent composition of claim 1, comprising between 0.5 wt. % to 5 wt. % of the branched fatty acid disintegrator.

5. The solid detergent composition of claim 1, comprising between 5 wt. % to 20 wt. % of the branched fatty acid disintegrator.

6. The solid detergent composition of claim 1, wherein the solidification agent comprises between 10 to 80 wt. % of sodium carbonate, sodium hydroxide or sodium metasilicate, or combinations thereof.

7. The solid detergent composition of claim 1, wherein the total composition has between 20 wt. % to 40 wt. % sodium carbonate.

8. The solid detergent composition of claim 1, wherein the total composition has between 20 to 40 wt. % sodium carbonate and 15 to 40 wt. % sodium hydroxide.

9. The solid detergent composition of claim 1, wherein the solid detergent composition is in the form of a tablet having a size between about 1 and about 50 grams.

10. The composition of claim 1, wherein the solid is formed by an extrusion process.

11. The composition of claim 1, wherein the solid is formed by a casting process.

12. The composition of claim 1, wherein the solid is formed by a tabletting process.

13. The solid detergent composition of claim 1, wherein the solid detergent composition is formulated for use in a warewashing machine.

14. The solid detergent composition of claim 1, wherein the solid detergent composition is formulated as a multiple-use block.

15. The solid detergent composition of claim 14, wherein the multiple-use block has a mass between 500 g and 10 kg.

16. The solid detergent composition of claim 1, wherein the solid detergent composition is formulated for use in a laundry machine.

17. The solid detergent composition of claim 1, wherein the surfactant comprises an anionic surfactant.

18. The solid detergent composition of claim 17, wherein the anionic surfactant comprises sodium alkylarylsulfonate, alpha-olefinsulfonate, fatty alcohol sulfate, or combinations thereof.

19. The solid detergent composition of claim 1, wherein the surfactant comprises a nonionic surfactant.

20. The solid detergent composition of claim 1, wherein the surfactant comprises a cationic surfactant.