Silicone nanoemulsion comprising alkylene glycol alkyl ether

• US 9,506,019 B2
• Filed: 01/25/2016
• Issued: 11/29/2016
• Est. Priority Date: 01/28/2015
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Whiting, Patrick Brian, Vetter, Nicholas David
• Primary Examiner(s): BOYER, CHARLES I
• Application Number:
  US15/005,078
• Publication Number:
  US 20160215238A1
• Time in Patent Office: 309 Days
• US Class Current: 1/1
• CPC Class Codes: C11D 17/0021 Aqueous microemulsions
• CPC Class Codes: C11D 3/0015 liquid
• CPC Class Codes: C11D 3/042 Acids
• CPC Class Codes: C11D 3/2068 Ethers
• CPC Class Codes: C11D 3/2075 Carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/3742 Nitrogen containing silicones

Abstract

Silicone nanoemulsions that include alkylene glycol alkyl ethers. Treatment compositions that include such silicone nanoemulsions. Methods of making such nanoemulsions and treatment compositions.

Claims

1. An amino silicone nanoemulsion comprising:

a. one or more liquid amino silicone compounds represented by formula (1) below;

2. An amino silicone nanoemulsion according to claim 1, wherein the average particle size of the nanoemulsion is from about 20 nm to about 500 nm.

3. An amino silicone nanoemulsion according to claim 1, wherein the average particle size of the nanoemulsion is from about 50 nm to about 150 nm.

4. An amino silicone nanoemulsion according to claim 1, wherein the C3-C6 alkylene glycol alkyl ether is selected from the group consisting of a monopropylene glycol alkyl ether, a dipropylene glycol alkyl ether, a tripropylene glycol alkyl ether, and mixtures thereof.

5. An amino silicone nanoemulsion according to claim 4, wherein the C3-C6 alkylene glycol alkyl ether is selected from the group consisting of a monopropylene glycol n-butyl ether, a dipropylene glycol n-butyl ether, a tripropylene glycol n-butyl ether, and mixtures thereof.

6. An amino silicone nanoemulsion according to claim 5, wherein the C3-C6 alkylene glycol alkyl ether is a monopropylene glycol n-butyl ether.

7. An amino silicone nanoemulsion according to claim 1, wherein the C3-C6 alkylene glycol alkyl ether comprises C3-C6 alkylene glycol C1-C12 alkyl ether.

8. An amino silicone nanoemulsion according to claim 7, wherein the C3-C6 alkylene glycol alkyl ether comprises C3-C6 alkylene glycol C1-C4 alkyl ether.

9. An amino silicone nanoemulsion according to claim 1, wherein the surfactant system comprises a surfactant selected from nonionic surfactant, anionic surfactant, cationic surfactant, zwitterionic surfactant, ampholytic surfactant, amphoteric surfactant, and mixtures thereof.

10. An amino silicone nanoemulsion according to claim 9, wherein the surfactant system comprises nonionic surfactant, cationic surfactant, or mixtures thereof.

11. An amino silicone nanoemulsion according to claim 10, wherein the surfactant system consists of nonionic surfactant.

12. An amino silicone nanoemulsion according to claim 11, wherein the nonionic surfactant comprises at least a first nonionic surfactant and a second nonionic surfactant.

13. An amino silicone nanoemulsion according to claim 12, wherein the first nonionic surfactant is characterized by a first HLB value, wherein the second nonionic surfactant is characterized by a second HLB value, and wherein the amino silicone is characterized by a third HLB value that is between the first HLB value and the second HLB value.

14. An amino silicone nanoemulsion according to claim 13, wherein the nonionic surfactant is an alkoxylated alcohol.

15. An amino silicone nanoemulsion according to claim 1, wherein the protonating agent is selected from the group consisting of formic acid, acetic acid, propionic acid, malonic acid, citric acid, hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, and mixtures thereof.

16. An amino silicone nanoemulsion according to claim 15, wherein the protonating agent is acetic acid.

17. An amino silicone nanoemulsion according to claim 1, wherein the nanoemulsion comprises from about 15% to about 60%, by weight of the nanoemulsion, of the amino silicone.

18. An amino silicone nanoemulsion according to claim 1, wherein the nanoemulsion comprises from about 10% to about 50%, by weight of the amino silicone, of the internal phase diluent.

19. An amino silicone nanoemulsion according to claim 1, wherein the amino silicone nanoemulsion is substantially free of a silicone resin.

20. An amino silicone nanoemulsion according to claim 1, wherein the amino silicone nanoemulsion is characterized by a Percentage Transmittance (% T) of at least about 80% at 480 nm.

21. A method of making an amino silicone nanoemulsion according to claim 1, comprising the steps of:

mixing the amino silicone with the internal phase diluent to form a first composition;

adding the surfactant system, the protonating agent, and water to the first composition; and

mixing.

22. A method of making an amino silicone nanoemulsion according to claim 21, wherein the mixing uses an energy density of less than about 4 kW/m³.

23. A treatment composition comprising the nanoemulsion of claim 1.

24. A method of making a treatment composition comprising the nanoemulsion of claim 1, comprising the steps of:

providing a base composition;

mixing in the amino silicone nanoemulsion of claim 1.