Fast dissolving solid detergent

• US 10,577,565 B2
• Filed: 05/22/2018
• Issued: 03/03/2020
• 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
• Primary Examiner(s): Douyon, Lorna M
• Application Number:
  US15/986,224
• Publication Number:
  US 20180334640A1
• Time in Patent Office: 651 Days
• Field of Search: None
• 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:

about 20 to about 40 wt. % sodium carbonate;

about 15 to about 40 wt. % sodium hydroxide; and

at least 0.2 wt. % of a disintegrator selected from the group consisting of neopentanoic acid, isooctanoic acid, isononanoic acid, and salts and mixtures thereof;

wherein the solid detergent composition is free of halogen bleaching agents.

2. The solid detergent composition of claim 1, wherein the disintegrator is sodium isononanoate.

3. The solid detergent composition of claim 1, comprising between 0.5 wt. % to 5 wt. % of the disintegrator.

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

5. 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.

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

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

8. The solid detergent composition of claim 1, wherein the solid is formed by a tableting process.

9. The solid detergent composition of claim 1, wherein the solid is a plurality of pellets.

10. The solid detergent composition of claim 1, further comprising about 1 to about 20 wt. % of a surfactant.

11. The solid detergent composition of claim 1, wherein the composition has a dissolution rate when exposed to 4000 mL of aqueous solution at 155°

F. of at least 30 g/minute.

12. A method of cleaning comprising:

a) dissolving a solid detergent composition with water to form a use solution, the solid detergent composition comprising;

about 20 to about 40 wt. % sodium carbonate;

about 15 to about 40 wt. % sodium hydroxide; and

at least 0.2 wt. % of a disintegrator selected from the group consisting of neopentanoic acid, isooctanoic acid, isononanoic acid, and salts and mixtures thereof;

wherein the solid detergent composition is free of halogen bleaching agents;

b) applying the use solution to a surface.

13. The method of claim 12, wherein the surface is located inside a warewashing machine, inside a laundry machine, in a sink, on a floor, inside a fryer, or inside of a food and beverage plant.

14. The method of claim 12, wherein the surface is selected from the group consisting of a dish, flatware, glass, pot, pan, cooking ware, floor, textile, hard surface, bottle, car, drain, medical instrument, dental instrument, food processing surface, carpet, meat cutting equipment, and a clean-in-place surface.

15. The method of claim 12, wherein the use solution has a solids content of at least about 0.05 wt. %.

16. The method of claim 12, wherein the use solution has a solids content of 0.05 wt. % to 5 wt. %.

17. The method of claim 12, wherein the solid detergent composition is diluted with water in a ratio of water to detergent of 20:

1 to 2000;

1.

18. The method of claim 12, wherein the composition has a dissolution rate when exposed to 4000 mL of aqueous solution at 155°

F. of at least 30 g/minute.

19. The method of claim 12, the solid detergent composition further comprising an additional ingredient selected from the group consisting of chelating agents, sequestering agents, surfactants, rinse aids, sanitizers, antimicrobial agents, optical brighteners, detergent builders, fillers, defoaming agents, anti-redeposition agents, dyes/odorants, secondary hardening agents, solubility modifiers, pesticides, bait, enzymes, and mixtures thereof.