PEROXIDE-CONTAINING CLEANING COMPOSITION WITH ENHANCED PEROXIDE STABILITY

• US 20150175941A1
• Filed: 12/20/2013
• Published: 06/25/2015
• Est. Priority Date: 12/20/2013
• Status: Active Grant

• Current Assignee: Church & Dwight Company Incorporated
• Original Assignee: Church & Dwight Company Incorporated
• Inventors: Adamy, Steven T.
• Granted Patent: US 9,145,536 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C11D 1/00 Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
• CPC Class Codes: C11D 1/29 Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/75 Amino oxides
• CPC Class Codes: C11D 3/10 Carbonates ; Bicarbonates
• CPC Class Codes: C11D 3/162 containing Si
• CPC Class Codes: C11D 3/30 Amines; Substituted amines ; Quaternized amines
• CPC Class Codes: C11D 3/394 Organic compounds
• CPC Class Codes: C11D 3/3942 Inorganic per-compounds C11D3/3902 takes precedence
• CPC Class Codes: C11D 3/3947 Liquid compositions

Abstract

A peroxide-containing cleaning composition with enhanced peroxide stability includes a peroxide-containing bleaching agent, at least one surfactant, an alkali metal salt in amounts sufficient to maintain an alkaline pH, a silane quaternary ammonium compound present in an amount sufficient to enhance the stability of the peroxide-containing bleaching agent, and an aqueous diluent. A method of stabilizing a peroxide-containing cleaning composition is also disclosed.

Claims

1. A peroxide-containing cleaning composition, comprising:

a peroxide-containing bleaching agent;

at least one surfactant;

an alkali metal salt in amounts sufficient to maintain an alkaline pH of the composition;

a silane quaternary ammonium compound present in an amount sufficient to enhance the stability of the peroxide-containing bleaching agent; and

an aqueous diluent.

2. The composition of claim 1 wherein the silane quaternary ammonium compound has the formula:

3. The composition of claim 2 wherein R is independently selected from a C₁-C₄ group.

4. The composition of claim 2 wherein R₁ and R₂ are each independently selected from a C₁-C₈ alkyl group, or a C₁-C₈ alkenyl group.

5. The composition of claim 2 wherein X is a halide.

6. The composition of claim 1 wherein the silane quaternary ammonium compound is 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride.

7. The composition of claim 1 wherein the amount of the silane quaternary ammonium compound is up to about 5 wt % based on the total weight of the composition.

8. The composition of claim 6 wherein the amount of the silane quaternary ammonium compound is in the range of from about 0.3 wt % to 5M wt % based on the total weight of the composition.

9. The composition of claim 1 wherein the alkali metal salt is selected from the group consisting of sodium bicarbonate, potassium bicarbonate and combinations thereof.

10. The composition of claim 1 wherein the amount of the alkali metal salt is up to about 10 wt % based on the total weight of the composition.

11. The composition of claim 10 wherein the amount of the alkali metal salt is in the range of from about 0.1 wt % to 2.5 wt % based on the total weight of the composition.

12. The composition of claim 1 wherein the pH is at least 8.

13. The composition of claim 12 wherein the pH is in the range of from about 8 to 10.

14. The composition of claim 1 wherein the peroxide-containing bleaching agent is hydrogen peroxide.

15. The composition of claim 1 wherein the amount of the peroxide-containing bleaching agent is up to 12 wt % based on the total weight of the composition.

16. The composition of claim 15 wherein the amount of the peroxide-containing bleaching agent is in the range of from about 0.2 wt % to 6.0 wt % based on the total weight of the composition.

17. The composition of claim 1 wherein the at least one surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants and combinations thereof.

18. The composition of claim 17 wherein the amount of said at least one surfactant is up to about 15 wt % based on the total weight of the composition.

19. The composition of claim 18 wherein the amount of said at least one surfactant is in the range of from about 3.0 wt % to 7.5 wt %.

20. The composition of claim 1 wherein the weight ratio of the silane quaternary ammonium compound to surfactant is in the range of from about 0.2:

1 to 4;

1.

21. The composition of claim 1 containing an anionic surfactant, wherein the mole ratio of silane quaternary ammonium compound to the anionic surfactant is at least about 0.4.

22. The composition of claim 21 wherein the mole ratio is from about 0.4 to 3.5.

23. A method of stabilizing a peroxide-containing cleaning composition containing a peroxide-containing bleaching agent at an alkaline pH comprising adding at least one surfactant and silane quaternary ammonium compound in an amount sufficient to enhance the stability of the peroxide-containing bleaching agent.