Compositions comprising hydrogen peroxide or hydrogen peroxide donor substances

Abstract

A description is given of compositions comprising a) one or more substances selected from the group consisting of hydrogen peroxide and hydrogen peroxide donor substances, b) water, c) one or more polymers having thickening properties and d) one or more substances selected from the group consisting of hydroxypyridones and salts thereof. The compositions are notable more particularly for their advantageous shelf lives.

Claims

1. A composition comprising a) 1% to 10% by weight of at least one substance selected from the group consisting of hydrogen peroxide and hydrogen peroxide-releasing substances; b) water; c) at least one polymer having at least one thickening property and having a molecular weight of more than 5000 g/mol; and d) 0.5 to 1000 ppm of at least one substance selected from the group consisting of compounds of the formula (I) and salts thereof ##STR00002## in which R1 is H or a C.sub.1-C.sub.4 alkyl radical and R2 is H, an unsubstituted or halogen-substituted, branched or unbranched C.sub.1-C.sub.20 alkyl radical, an unsubstituted or halogen-substituted C.sub.5-C.sub.8 cycloalkyl radical, an unsubstituted or halogen-substituted C.sub.6-C.sub.10 aryl radical or an unsubstituted or halogen-substituted, branched or unbranched C.sub.7-C.sub.20 aralkyl radical; wherein the viscosity of the composition is 50 to 100000 mPa.Math.s at 20° C., and wherein the pH of the composition is in the range of 2-7, and wherein the substance selected from the group consisting of compounds of the formula (I) and salts thereof is present in an amount such that the composition exhibits a viscosity stability over 4 weeks from formulation at 40° C. of at least 68%.

2. The composition as claimed in claim 1, wherein the at least one substance of component a) is selected from the group consisting of hydrogen peroxide, urea peroxide, perborates, persulfates and mixtures thereof.

3. The composition as claimed in claim 1, wherein the substance of component a) is hydrogen peroxide.

4. The composition as claimed in claim 1, wherein the at least one polymer having at least one thickening property of component c) is selected from the group consisting of polymers having a C—C backbone, biopolymers, modified biopolymers, associative thickeners and polyalkylene glycols.

5. The composition as claimed in claim 4, wherein the at least one polymer having at least one thickening property of component c) is selected from the group consisting of polymers having a C—C backbone.

6. The composition as claimed in claim 5, wherein the at least one polymer having a C—C backbone is a partly or fully neutralized polymer containing sulfo groups.

7. The composition as claimed in claim 6, wherein the at least one partly or fully neutralized polymer containing sulfo groups is selected from the group consisting of homo- or copolymers of acrylamidomethylpropanesulfonic acid and salts thereof.

8. The composition as claimed in claim 4, wherein the at least one polymer having at least one thickening property of component c) is selected from the group consisting of biopolymers and modified biopolymers.

9. The composition as claimed in claim 4, wherein the at least one-polymer having at least one thickening property of component c) is selected from the group consisting of associative thickeners.

10. The composition as claimed in claim 9, wherein the at least one associative thickener is selected from the group consisting of phosphoric esters.

11. The composition as claimed in claim 4, wherein the at least one polymer having at least one thickening property of component c) is selected from the group consisting of polyalkylene glycols.

12. The composition as claimed in claim 1, wherein the at least one compound of component d) is present in the form of the acid or in the form of the alkali metal, alkaline earth metal or amine salt thereof or a salt thereof with a polymeric counterion.

13. The composition as claimed in claim 1, wherein, in the at least one compound of the formula (I) or in the salt thereof, R1 is methyl and R2 is cyclohexyl or 2,4,4-trimethylpentyl.

14. The composition as claimed in claim 1, wherein R1 and R2 in the at least one compound of the formula (I) or in the salt thereof are each H.

15. The composition as claimed in claim 1, which comprises the at least one substance of component d) in an amount of 0.1 ppm to 2% by weight, based on the total weight of the composition.

16. The composition as claimed in claim 1, which has a pH of 2.5-4.5.

17. A composition for bleaching and/or coloring of hair or a permanent wave formulation, comprising at least one composition according to claim 1.

18. An oxidative cleanser formulation, comprising at least one composition according to claim 1.

19. A stain removal gel for pretreatment of laundry, a prewash spray, a stain remover, a surface cleaner, a toilet cleaner, a multifunctional stain removal gel or a bleaching gel, comprising at least one composition according to claim 1.

20. A method for stabilization of at least one polymer having at least one thickening property in a composition as claimed in claim 1, comprising the step of adding at least one substance selected from the group consisting of compounds of the formula (I) and salts thereof to the composition.

21. The method as claimed in claim 20, wherein the at least one polymer having at least one thickening property is a partly or fully neutralized polymers containing sulfo groups.

22. The method as claimed in claim 21, wherein the at least one partly or fully neutralized polymers containing sulfo groups are selected from the group consisting of homo- or copolymers of acrylamidomethylpropanesulfonic acid and salt thereof.

23. A composition according to claim 1, in the form of a bleach composition for hair, a developer for a hair dye, or a permanent wave formulation.

24. A composition according to claim 1, in the form of a bleach composition for teeth or a household cleaner.

25. A composition according to claim 1, having wherein the viscosity of the composition is 150 to 5000 mPa.Math.s at 20° C.

26. A composition comprising a) 1% to 10% by weight of at least one substance selected from the group consisting of hydrogen peroxide and hydrogen peroxide-releasing substances; b) water; c) at least one polymer having at least one thickening property and having a molecular weight of more than 5000 g/mol; and d) 0.5 to 1000 ppm of at least one substance selected from the group consisting of compounds of the formula (I) and salts thereof ##STR00003## in which R1 is H or a C.sub.1-C.sub.4 alkyl radical and R2 is H, an unsubstituted or halogen-substituted, branched or unbranched C.sub.1-C.sub.20 alkyl radical, an unsubstituted or halogen-substituted C.sub.5-C.sub.8 cycloalkyl radical, an unsubstituted or halogen-substituted C.sub.6-C.sub.10 aryl radical or an unsubstituted or halogen-substituted, branched or unbranched C.sub.7-C.sub.20 aralkyl radical, the at least one substance being present in an amount to stabilize the viscosity of the composition relative to an identical composition lacking the at least one substance; wherein the viscosity of the composition is 50 to 100000 mPa.Math.s at 20° C., and wherein the pH of the composition is in the range of 2-7, and wherein the substance selected from the group consisting of compounds of the formula (I) and salts thereof is present in an amount such that the composition exhibits a viscosity stability over 4 weeks from formulation at 40° C. of at least 68%.

Description

TEST EXAMPLES

Example 1

Hydrogen Peroxide Gel Thickened with an Associative Thickener

(1) Formulation:

(2) TABLE-US-00002 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Triceteareth-50 Phosphate 6% by wt. (Substance according to example 1 from DE 10 2008 006858) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00077% by wt. 2-pyridone

(3) The formulation was produced by dissolving the polymeric thickener in water, then mixing in the hydrogen peroxide solution and adjusting the formulation to the respective start pH with 10% by weight aqueous phosphoric acid. Each formulation was produced with and without addition of 7.7 ppm (0.00077% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-251-hydroxy-2-pyridone. For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 1.

(4) TABLE-US-00003 TABLE 1 Results of viscosity measurements 7.7 ppm of 4- Viscosity Viscosity Viscosity methyl-6-(2,4,4- [mPa .Math. s] [mPa .Math. s] [mPa .Math. s] trimethyl-pentyl)- Viscosity after 4 after 8 after 12 Start 1-hydroxy- [mPa .Math. s] weeks weeks weeks pH 2-pyridone immediate 40° C. 40° C. 40° C. 3.9 no 12 000 8000 4070 690 3.3 no 10 400 1600 715 207 3.9 yes 13 400 9100 7850 5350 3.2 yes 11 200 8150 7300 5550

(5) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained constant at 6.2-6.7% by weight.

(6) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 2

Hydrogen Peroxide Gel Thickened with a Sulfonate Copolymer

(7) Formulation:

(8) TABLE-US-00004 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Aristoflex ® TAC 1.5% by wt. (Ammonium Acryloyl Dimethyltaurate/ Carboxyethyl Acrylate Crosspolymer) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00088% by wt. 2-pyridone

(9) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid.

(10) The formulation was produced in each case with and without addition of 8.8 ppm (0.00088% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(11) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 2.

(12) TABLE-US-00005 TABLE 2 Results of viscosity measurements 8.8 ppm of 4- Viscosity Viscosity Viscosity methyl-6-(2,4,4- [mPa .Math. s] [mPa .Math. s] [mPa .Math. s] trimethyl-pentyl)- Viscosity after 4 after 8 after 12 Start 1-hydroxy- [mPa .Math. s] weeks weeks weeks pH 2-pyridone immediate 40° C. 40° C. 40° C. 4.0 no 3000 408 10 10 3.2 no 2900 590 10 10 4.1 yes 3050 2100 2530 2280 3.49 yes 2870 2440 2300 2070

(13) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(14) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 3

Hydrogen Peroxide Gel Thickened with a Sulfonate Copolymer

(15) Formulation:

(16) TABLE-US-00006 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 12.14% by wt. (Evonik, 50% by wt., aqueous) Aristoflex ® AVS 0.5% by wt. Sodium Acryloyldimethyltaurate/VP Crosspolymer 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00087% by wt. 2-pyridone

(17) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 8.7 ppm (0.00087% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(18) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 3.

(19) TABLE-US-00007 TABLE 3 Results of viscosity measurements 8.7 ppm (=0.00087% by wt.) of 4-methyl- Viscosity Viscosity 6-(2,4,4-trimethyl-pentyl)- [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 4 weeks 40° C. 3.90 no 12 700 10 3.42 no 10 600 10 3.9 yes 15 700 16 000 .sup.  3.29 yes 10 200 8800 

(20) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(21) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

(22) Hydrogen peroxide was purchased from Solvay (35% by weight, aqueous, Interox® AG-CO-35) or Evonik (50% by weight, aqueous, B7 quality).

(23) The viscosities were measured with a Brookfield model DV II viscometer, the spindles from the RV spindle set at 20 revolutions/minute and 20° C. Spindles 1 to 7 from the RV spindle set are used. Under these measurement conditions, spindle 1 is selected for viscosities not exceeding 500 mPa.Math.s, spindle 2 for viscosities not exceeding 1000 mPa.Math.s, spindle 3 for viscosities not exceeding 5000 mPa.Math.s, spindle 4 for viscosities not exceeding 10 000 mPa.Math.s, spindle 5 for viscosities not exceeding 20 000 mPa.Math.s, spindle 6 for viscosities not exceeding 50 000 mPa.Math.s and spindle 7 for viscosities not exceeding 200 000 mPa.Math.s.

Example 4

Hydrogen Peroxide Gel Thickened with a Sulfonate Copolymer Formulation

(24) TABLE-US-00008 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 12.14% by wt. (Evonik, 50% by wt., aqueous) Aristoflex ® AVS 0.5% by wt. Sodium Acryloyldimethyltaurate/VP Crosspolymer 1-Hydroxy-2-pyridone 0.001% by wt.

(25) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 10 ppm (0.001% by wt.) of 1-hydroxy-2-pyridone. For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 4.

(26) TABLE-US-00009 TABLE 4 Results of viscosity measurements 10 ppm Viscosity Viscosity (=0.001% by wt.) of [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 4 weeks 40° C. 4.0 no 5850 10 3.0 no 5200 10 4.0 yes 6700 6100 3.0 yes 5900 5500

(27) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5:8-6.3% by weight.

(28) The test result shows that the addition of the 1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 5

Hydrogen Peroxide Gel Thickened with a Biopolymer Formulation

(29) TABLE-US-00010 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Xanthan gum 1.5% by wt. 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00081% by wt. 2-pyridone

(30) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 8.1 ppm (0.00081% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(31) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 5.

(32) TABLE-US-00011 TABLE 5 Results of viscosity measurements 8.1 ppm (=0.00081% by wt.) of 4-methyl- Viscosity Viscosity 6-(2,4,4-trimethyl-pentyl)- [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 4 weeks 40° C. 4.0 no 3500 10 3.0 no 5000 10 4.0 yes 4000 4150 3.0 yes 4800 4700

(33) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(34) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 6

Hydrogen Peroxide Gel Thickened with a Biopolymer Formulation

(35) TABLE-US-00012 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Hydroxyethyl cellulose 2.0% by wt. 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00081% by wt. 2-pyridone

(36) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 8.1 ppm (0.00081% by wt.) of 4-methyl-6-(2,4,4-trimethyl pentyl)-1-hydroxy-2-pyridone.

(37) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 6.

(38) TABLE-US-00013 TABLE 6 Results of viscosity measurements 8.1 ppm (=0.00081% Viscosity Viscosity by wt.) of 4-methyl- [mPa .Math. s] [mPa .Math. s] 6-(2,4,4-trimethyl-pentyl)- after 10 after 4 Start pH 1-hydroxy-2-pyridone hours weeks 40° C. 4.0 no 530 10 3.0 no 575 10 4.0 yes 9850 5200 3.0 yes 9800 4360

(39) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(40) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 7

Hydrogen Peroxide Gel Thickened with a Polyalkylene Glycol Formulation

(41) TABLE-US-00014 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Polyethylene glycol (Polyox WSR-301, Dow) 1.75% by wt. 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00081% by wt. 2-pyridone

(42) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 8.1 ppm (0.00081% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(43) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 7.

(44) TABLE-US-00015 TABLE 7 Results of viscosity measurements 8.1 ppm (=0.00081% by wt.) of 4-methyl- Viscosity Viscosity 6-(2,4,4-trimethyl-pentyl)- [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 1 week 25° C. 4.0 no 2560 50 3.0 no 2490 60 4.0 yes 2920 2100 3.0 yes 3080 2050

(45) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(46) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 8

Hydrogen Peroxide Gel Thickened with a Sulfonate Copolymer Formulation

(47) TABLE-US-00016 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Aristoflex ® HMS 0.5% by wt. Ammonium Acryloyldimethyltaurate/ Steareth-25 Crosspolymer 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00081% by wt. 2-pyridone

(48) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 8.1 ppm (0.00081% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(49) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 8.

(50) TABLE-US-00017 TABLE 8 Results of viscosity measurements 8.1 ppm (=0.00081% by wt.) of 4-methyl- Viscosity Viscosity 6-(2,4,4-trimethyl-pentyl)- [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 8 weeks 40° C. 4.0 no 3320 205 3.0 no 2760 745 4.0 yes 3350 6100 3.0 yes 2740 6000

(51) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(52) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Example 9

Hydrogen Peroxide Gel Thickened with a Sulfonate Polymer

(53) Formulation:

(54) TABLE-US-00018 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Aristoflex ® AVS 1.0% by wt. Sodium Acryloyldimethyltaurate/VP Crosspolymer 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00081% by wt. 2-pyridone

(55) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous sodium hydroxide. The formulation was produced in each case with and without addition of 8.1 ppm (0.00081% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(56) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 9.

(57) TABLE-US-00019 TABLE 9 Results of viscosity measurements 8.1 ppm (=0.00081% by wt.) of 4-methyl- Viscosity Viscosity 6-(2,4,4-trimethyl-pentyl)- [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 2 weeks 25° C. 9.0 no 4450 10 9.0 yes 6550 7300

(58) At the same time, the hydrogen peroxide content was determined iodometrically in each case. From the start value of 6.0% by weight, the hydrogen peroxide content of the solution without stabilizer fell to 0.4% by weight, whereas, with stabilizer, the starting value of 6.0% by weight was maintained.

(59) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, even at high pH, and hence significantly increases the stability of the thickener polymer.

Example 10

Hydrogen Peroxide Gel Thickened with a Sulfonate Copolymer

(60) Formulation:

(61) TABLE-US-00020 Water, demineralized ad 100% by wt. Hydrogen peroxide solution 17% by wt. (Solvay, 35% by wt., aqueous) Hostapur ® SAS (100% active) 4.5% by wt. Sodium C14-17 Alkyl Sec Sulfonate Aristoflex ® TAC 1.5% by wt. Ammonium Acryloyl Dimethyltaurate/ Carboxyethyl Acrylate Crosspolymer) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.00088% by wt. 2-pyridone

(62) The formulation was produced by dissolving the polymeric thickener in water and then mixing in the hydrogen peroxide solution. The respective start pH was subsequently established with 10% by weight aqueous phosphoric acid. The formulation was produced in each case with and without addition of 8.8 ppm (0.00088% by wt.) of 4-methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone.

(63) For this purpose, 10 ml of a 0.1% by weight solution of the stabilizer in propylene glycol were dissolved in 1 liter of water and this solution was used as the water phase. A blank test with propylene glycol ruled out any influence of the solvent. The results of the viscosity measurements are shown in table 10.

(64) TABLE-US-00021 TABLE 10 Results of viscosity measurements 8.8 ppm of 4-methyl- Viscosity Viscosity 6-(2,4,4-trimethyl-pentyl)- [mPa .Math. s] [mPa .Math. s] Start pH 1-hydroxy-2-pyridone immediate after 4 weeks 40° C. 4.0 no 1340 375 7.0 no 1450 625 4.0 yes 1320 1230 7.0 yes 1400 1150

(65) At the same time, the hydrogen peroxide content was determined iodometrically in each case. Over the entire storage time, this remained virtually constant at 5.8-6.3% by weight.

(66) The test result shows that the addition of the 4-methyl-6-(2,4,4-trimethyl-pentyl)-1-hydroxy-2-pyridone stabilizer, compared to an unstabilized sample, shows a distinctly reduced decline in viscosity, and hence significantly increases the stability of the thickener polymer.

Formulation Examples

Formulation Example 1

Emulsifier-Containing Bleaching Cream

(67) TABLE-US-00022 Phase Ingredient % by wt. A Montanov ® 68 1.5 Cetearyl Alcohol and Cetearyl Glucoside Sepinov ® EMT 10 1.5 Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Paraffin Oil 20 B Sodium Pyrophosphate 0.6 Hydrogen peroxide (30% by wt., aqueous) 6 Preservative qs 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy- 0.002 2-pyridone, monoethanolamine salt (Octopirox ®, Clariant) Water ad 100
Production:

(68) Sepinov EMT 10 is dispersed in phase A. The components of phase B are mixed and phase A is stirred in, forming an emulsion.

Formulation Example 2

Emulsifier-Free Bleaching Gel

(69) TABLE-US-00023 Ingredient % by wt. Aristoflex ® AVS 1.0 Sodium Acryloyldimethyltaurate/VP Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 17 Sodium pyrophosphate 0.02 Sodium stannate 0.04 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.001 Propylene glycol 1 Water ad 100
Production:

(70) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol. Aristoflex® AVS is dissolved in water, then the hydrogen peroxide solution is stirred in, followed by the two stabilizers.

Formulation Example 3

Oxidative Hair Coloring Formulation

(71) Color Base:

(72) TABLE-US-00024 Ingredient % by wt. Polyquaternium-29 0.5 (Dihydroxypropyl Chitosan Trimonium Chloride) m-Phenylenediamine 0.08 p-Phenylenediamine HCl 0.30 Resorcinol 0.25 Sodium Bisulfite 0.30 Sodium Laureth Sulfate 3.50 Cetyl Alcohol 15.00 Ammonia, 25% by wt., aqueous 2.00 Water ad 100
Production:

(73) Cetyl alcohol and sodium laureth sulfate are heated to 60° C., mixed and introduced while stirring into the water phase in which the other constituents have been dissolved.

(74) Developer Gel:

(75) TABLE-US-00025 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 1.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 18 Sodium pyrophosphate 0.02 4-Methyl-6-(cyclohexyl)-1-hydroxy-2-pyridone 0.002 Propylene glycol 1 Water ad 100
Production:

(76) 4-Methyl-6-(cyclohexyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol. Aristoflex® TAC is dissolved in water, then the hydrogen peroxide solution is stirred in, followed by the sodium pyrophosphate stabilizer.

(77) This forms a gel having a viscosity of approx. 3000 mPa.Math.s at 20° C.

(78) Coloring Procedure:

(79) 50 ml of the color base are stirred with 50 ml of the developer gel and applied to the hair. After 30 minutes, it is rinsed out.

Formulation Example 4

Oxidative Hair Coloring Formulation, Ammonia-Free

(80) Color Base:

(81) TABLE-US-00026 Ingredient % by wt. Polyquaternium-29 0.5 (Dihydroxypropyl Chitosan Trimonium Chloride) m-Phenylenediamine 0.08 p-Phenylenediamine HCl 0.30 Resorcinol 0.25 Sodium Bisulfite 0.30 Sodium Laureth Sulfate 3.50 Cetyl Alcohol 15.00 Monoethanolamine 2.00 Water ad 100
Production:

(82) Cetyl alcohol and sodium laureth sulfate are heated to 60° C., mixed and introduced while stirring into the water phase in which the other constituents have been dissolved.

(83) Developer Gel:

(84) TABLE-US-00027 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 1.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 18 Sodium pyrophosphate 0.02 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.002 Propylene glycol 1 Water ad 100
Production:

(85) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol. Aristoflex® TAC is dissolved in water, then the hydrogen peroxide solution is stirred in, followed by the sodium pyrophosphate stabilizer.

(86) This forms a gel having a viscosity of approx. 3000 mPa.Math.s at 20° C.

(87) Coloring Procedure:

(88) 50 ml of the color base are stirred with 50 ml of the developer ael and applied to the hair. It is rinsed out after 30 minutes.

Formulation Example 5

Fixing Gel for Permanent Waves

(89) TABLE-US-00028 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 0.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 5 Sodium pyrophosphate 0.02 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.002 Propylene glycol 1 Water ad 100
Production:

(90) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol.

(91) Aristoflex® TAC is dissolved in water, the hydrogen peroxide solution and the pyrophosphate, and also the propylene glycol solution, are introduced and the mixture is homogenized.

Formulation Example 6

Fixing Gel for Permanent Waves

(92) TABLE-US-00029 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 0.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 5 Sodium pyrophosphate 0.02 Polyquaternium-10 (Polymer IR-400) 0.1 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.0005 Propylene glycol 1 Water ad 100
Production:

(93) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol.

(94) Polyquaternium-10 is dissolved in water, then Aristoflex® TAC is added while stirring, the hydrogen peroxide solution and the pyrophosphate, and also the propylene glycol solution, are introduced and the mixture is homogenized.

Formulation Example 7

Prewash Spray for Laundry

(95) TABLE-US-00030 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 0.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 10 Laureth-7 5 Laureth-3 2 Hostapur ® SAS 60 (Sodium C14-17 Alkyl Sec Sulfonate) 5 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.0005 Propylene glycol 1 Water ad 100
Production:

(96) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol.

(97) The surfactants are dissolved in water, then Aristoflex® TAC is added while stirring, the hydrogen peroxide solution and the propylene glycol solution are introduced, and the mixture is homogenized. The product is adjusted to pH=4.

Formulation Example 8

Stain Remover

(98) TABLE-US-00031 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 0.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 10 Sodium C12-14 Olefin Sulfonate) 5 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.0005 Propylene glycol 1 Water ad 100
Production:

(99) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol.

(100) The surfactant is dissolved in water, then Aristoflex® TAC is added while stirring, the hydrogen peroxide solution and the propylene glycol solution are introduced, and the mixture is homogenized. The product is adjusted to pH=7.

Formulation Example 9

Stain Remover Gel

(101) TABLE-US-00032 Ingredient % by wt. Aristoflex ® TAC Ammonium Acryloyldimethyltaurate/ 0.5 Carboxyethyl Acrylate Crosspolymer Hydrogen peroxide (35% by wt., aqueous) 10 C12/14 Pareth-7 7 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone 0.0005 Propylene glycol 1 MEA dodecylbenzenesulfonate 6 Water ad 100
Production:

(102) 4-Methyl-6-(2,4,4-trimethylpentyl)-1-hydroxy-2-pyridone is dissolved in propylene glycol.

(103) The surfactants are dissolved in water, then Aristoflex® TAC is added while stirring, the hydrogen peroxide solution and the propylene glycol solution are introduced, and the mixture is homogenized. The product is adjusted to pH=4.7.