Multiphase cleaning compositions having ionic liquid phase

• US 7,928,053 B2
• Filed: 05/26/2009
• Issued: 04/19/2011
• Est. Priority Date: 11/01/2004
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Price, Kenneth Nathan, Hecht, Stacie Ellen, Earle, Martyn, Berger, Patricia Sara, Foley, Peter Robert, Niehoff, Raymond Louis, Gunaratne, Harambage Quintas Nimal, Showell, Michael Stanford, Gardner, Robb Richard, Hutton, Howard David III, Seddon, Kenneth Richard
• Primary Examiner(s): Ogden, Jr.; Necholus
• Application Number:
  US12/471,763
• Publication Number:
  US 20090233829A1
• Time in Patent Office: 693 Days
• Field of Search: None
• US Class Current: 510/407
• CPC Class Codes: C11D 17/0013 Liquid compositions with insoluble particles in suspension C11D17/0021, C11D17/0026, C11D17/003 take precedence
• CPC Class Codes: C11D 17/0017 Multi-phase liquid compositions

Abstract

A multiphase cleaning composition comprises a first phase and a second ionic liquid phase, wherein the second phase is substantially immiscible with the first phase. The first phase may comprise, for example, an aqueous phase or a silicone solvent system. Methods of cleaning a soiled surface comprise contacting a soiled surface with a multiphase wash liquor including a first phase and a second ionic liquid phase, wherein the second phase is substantially immiscible with the first phase, and removing soils from the surface.

Claims

1. A multiphase cleaning composition, comprising a first phase comprising a carrier and a second phase comprising an ionic liquid consisting of:

a) an amine oxide cation having the formula;

2. The composition of claim 1, wherein the first phase is an aqueous phase.

3. The composition of claim 1, wherein the first phase comprises a silicone solvent system.

4. The composition of claim 1, further comprising a third phase which separates from the first phase and the second phase upon standing, and comprises an organic solvent, an ionic liquid, or mixtures thereof.

5. The composition of claim 1, wherein the second phase comprises from about 0.01 to about 90 weight % of the composition.

6. The composition of claim 1, wherein the second phase comprises less than about 50 weight % of the composition.

7. The composition of claim 1, wherein the first phase is the continuous phase and the second phase is the dispersed phase.

8. The composition of claim 7, wherein the dispersed second phase comprises droplets having an average droplet size of less than about 1,000 microns.

9. The composition of claim 1, wherein the composition is phase stable at a temperature of less than about 70°

C., and/or a pH of from about 3 to about 12.

10. The composition of claim 1, further comprising a phase stabilizing surfactant.

11. The composition of claim 1, further comprising a soil dispersing agent selected from the group consisting of clays, polymers, surfactants, and mixtures thereof.

12. The composition of claim 1, further comprising a benefit agent selected from the group consisting of bleaches, bleach catalysts, bleach boosters, bleach activators, suds suppressors, builders, chelants, biocides, surfactants, enzymes, radical initiators, perfumes, dyes, skin conditioning actives, vitamins, softeners, and mixtures thereof.

13. The composition of claim 12, wherein the benefit agent is associated with the second phase.

14. The composition of claim 1, wherein the composition is a hand dishwashing detergent, an automatic dishwashing detergent, a pretreating composition, or a laundry detergent.

15. A method of forming a multiphasic composition comprising the steps of:

(a) providing a first liquid comprising an ionic liquid consisting of;

1) an amine oxide cation having the formula;

16. The method of claim 15, further comprising the steps of providing optional adjunct ingredients and combining the adjunct ingredients into the composition concurrent with or after step (b).