Cold mix emulsions used as a developer composition for oxidative hair dyes and for hair bleaches

• US 5,221,286 A
• Filed: 07/17/1992
• Issued: 06/22/1993
• Est. Priority Date: 07/17/1992
• Status: Expired due to Fees

• Current Assignee: Eastman Chemical Company
• Original Assignee: Eastman Kodak Company
• Inventors: Singleton, A. H., Porter, S. N.
• Primary Examiner(s): Lieberman, Paul
• Assistant Examiner(s): TIERNEY, MICHAEL
• Application Number:
  US07/914,123
• Time in Patent Office: 340 Days
• Field of Search: 252/183.15, 252/DIG. 13, 252/94, 514/844, 514/845, 514/846, 514/943, 514/786, 424/62, 424/70, 8/405, 8/406
• US Class Current: 8/406
• CPC Class Codes: A61K 8/375 the alcohol moiety containing more than one hydroxy group
• CPC Class Codes: A61Q 5/08 Preparations for bleaching the hair
• CPC Class Codes: A61Q 5/10 Preparations for permanently dyeing the hair

Abstract

This invention relates to a nonionic cold mix emulsion and preparation thereof. More particularly, the present invention relates to a cosmetic composition in the form of a cream preparation which comprises a discontinuous phase dispersed in a continuous phase. The continuous phase contains water, an emulsifier, and at least one oxidizing agent. The discontinuous phase contains salts of fatty acid esters of lactylic acid, saturated monoglycerides and propylene glycol monoesters. The emulsions are particularly suitable as components of oxidizing preparations for the bleaching of hair and for the dying of hair with oxidation hair dyes and hair bleaches.

Claims

1. A nonionic cold mix cream emulsion bleach comprising:

(I) about 99 to about 90 weight percent of a continuous phase comprising

(a) about 20 to about 95 weight percent of water;

(b) about 2 to about 35 weight percent of at least one oxidizing agent for liberating active oxygen, calculated as hydrogen peroxide; and

(c) about 1 to about 6 weight percent of at least one emulsifier; and

(II) about 1 to about 10 weight percent of a discontinuous phase comprising

(d) about 8.8 to about 20 weight percent of at least one salt of a fatty acid ester of lactylic acid;

(e) about 29.8 to about 39.2 weight percent of at least one saturated monoglyceride of a straight chain fatty acid having from 8 to 22 carbon atoms and an iodine value of 0 to about 20; and

(f) about 41.2 to about 52.0 weight percent of at least one saturated monoester of propylene glycol and a straight chain fatty acid having from 8 to 22 carbon atoms and an iodine value of 0 to about 20.

2. The emulsion of claim 1 wherein the water, component (a), is present in an amount of from 70 to 80 weight percent of the total emulsion.

3. The emulsion of claim 2 wherein the water, component (a), is present in an amount of from 73 to 76 weight percent of the total emulsion.

4. The emulsion of claim 1 wherein the oxidizing agent, component (b) is selected from the group consisting of hydrogen peroxide, hydroquinone, percarbamide, an alkali metal perborate, an alkali metal percarbonate, melamine perhydrate, an alkali metal persulfate and mixtures thereof.

5. The emulsion of claim 4 wherein the oxidizing agent is hydrogen peroxide.

6. The emulsion of claim 1 wherein the oxidizing agent, component (b) is present in an amount of from 4 to 9 weight percent, calculated as hydrogen peroxide.

7. The emulsion of claim 1 wherein the emulsifier, component (c) is selected from the group consisting of a mixture of distilled propylene glycol monoesters, distilled monoglycerides and sodium stearyl lactylate, hydrophilic ethoxylated sorbitan monoesters, malto dextrin, lecithin, monoglycerides, diglycerides, and mixtures thereof.

8. The emulsion of claim 7 wherein the hydrophilic ethoxylated sorbitan monoesters are selected from the group consisting of sorbitan monostearate plus 20 moles of ethylene oxide, sorbitan monooleate plus 20 moles of ethylene oxide, sorbital laurate plus 20 moles of ethylene oxide, and mixtures thereof.

9. The emulsion of claim 1 wherein the discontinuous phase (II) consists essentially of:

(d) 10.0 to 14.0 weight percent of at least one salt of a fatty acid ester of lactylic acid;

(e) 35.0 to 39.0 weight percent of at least one saturated monoglyceride of a straight chain fatty acid having from 8 to 22 carbon atoms and an iodine value of 0 to about 20; and

(f) 49.0 to 52.0 weight percent of at least one saturated monoester of propylene glycol and a straight chain fatty acid having from 8 to 22 carbon atoms and an iodine value of 0 to about 20.

10. The emulsion of claim 1 wherein the salt of a fatty acid ester of lactylic acid is an alkali, alkaline earth or ammonium salt.

11. The emulsion of claim 10 wherein the salt of a fatty acid ester of lactylic acid is a sodium, potassium or calcium salt.

12. The emulsion of claim 1 which additionally contains an acid selected from the group consisting of phosphoric acid, lactic acid, citric acid, tartaric acid, maleic acid, hydroxysuccinic acid and mixtures thereof.

13. The emulsion of claim 12 wherein the acid is phosphoric acid.

15. A process for the bleaching of human hair consisting essentially of applying to said hair at a temperature ranging from about 15°

C. to 40°

C. for a time sufficient to bleach said hair, an effective amount of the emulsion according to claim 1.

16. A substrate having the emulsion composition of claim 1 deposited thereon.

14. A method of preparing a nonionic cold mix cream emulsion bleach comprising:

(I) about 99 to about 90 weight percent of a continuous phase comprising

(a) about 20 to about 95 weight percent of water;

(b) about 2 to about 35 weight percent of at least one oxidizing agent for liberating active oxygen, calculated as hydrogen peroxide; and

(c) about 1 to about 6 weight percent of at least one emulsifier; and

(II) preparing a discontinuous phase comprising

(d) about 8.8 to about 20 weight percent of at least one salt of a fatty acid ester of lactylic acid;

(e) about 29.8 to about 39.2 weight percent of at least one saturated monoglyceride of a straight chain fatty acid having from 8 to 22 carbon atoms and an iodine value of 0 to about 20; and

(f) about 41.2 to about 52.0 weight percent of at least one saturated monoester of propylene glycol and a straight chain fatty acid having from 8 to 22 carbon atoms and an iodine value of 0 to about 20; and

(III) combining (I) and (II) to thereby obtain an emulsion.

17. A dermatological composition in the form of a cream preparation prepared by the process according to claim 14.