COMPOSITION CONTAINING WATER-SOLUBLE NON-IONIC POLYURETHANE DISPERSION, AND PREPARATION METHOD THEREFOR

Abstract

Provided is a composition containing water-soluble non-ionic polyurethane, comprising (a) 0.1-30 parts of water-soluble non-ionic polyurethane dispersions by weight; (b) 10-30 parts of decontaminating surfactants by weight; (c) 0.01-5 parts of conditioning agents by weight; and (d) 100 parts of aqueous carriers by weight. The composition in the present invention is used as shampoo, and can make hair naturally strong and extend the volumizing duration of hair.

Claims

1. A composition containing an aqueous nonionic polyurethane dispersion, comprising: (a) 0.1 to 30 parts by weight of an aqueous nonionic polyurethane dispersion; (b) 10 to 30 parts by weight of a detersive surfactant; (c) 0.01 to 5 parts by weight of a conditioner; and (d) an aqueous carrier, the amount of which making the total weight of the composition to be 100 parts by weight.

2. The composition according to claim 1, wherein (a) the aqueous nonionic polyurethane dispersion is an aqueous nonionic polyurethane dispersion with a solids content of 20 wt % to 50 wt % and a particle size of 10 nm to 100 nm.

3. The composition according to claim 1, wherein (a) the aqueous nonionic polyurethane dispersion is a product comprising the following ingredients obtained through a reaction: S1: at least one diisocyanate, which is added in an amount of 5 to 25 wt %; S2: a macropolyol, which has a number average molecular weight of 500 to 3000 g/mol, preferably 1000 to 2000 g/mol, and is added in an amount of 1 to 25 wt %; S3: at least one monohydric alcohol and/or diol containing a polyoxyethylene chain segment in a main chain and/or a side chain, which has a number average molecular weight of 500 to 3000 g/mol and is added in an amount of 1 to 20 wt %; S4: at least one diol small-molecular chain extender containing active hydrogen, which has a molecular weight of 60 to 400 g/mol and is added in an amount of 0.1 to 10 wt %; S5: at least one diamine small-molecular chain extender containing active hydrogen, which has a molecular weight of 59 to 200 g/mol and is added in an amount of 0.01 to 5 wt %; S6: an organic solvent with a low boiling point, which is added in an amount of 0.2 to 2 times the total weight of S1 to S5; S7: distilled water, which is added in an amount of 20 to 80 wt %; and S8: a catalyst, which is added in an amount of 100 to 300 ppm of the total weight of S1 to S5; wherein the added amounts of each of the above ingredients are the contents relative to the total weight of the reaction system, where the total weight of the reaction system is a sum of weights of S1 to S5, S7, and S8 and equal to 100 wt %.

4. The composition according to claim 3, wherein in the aqueous nonionic polyurethane dispersion, the molar ratio R of the diisocyanate to the polyol is 1.85 to 4.5.

5. The composition according to claim 1, wherein (b) the detersive surfactant is selected from the group consisting of sodium laureth sulfate, alkyl ammonia oxide, alkyl betaine, cocamidopropyl betaine, disodium cocoamphodiacetate, alkyl sulfobetaine, alkyl glycinate, alkyl carboxy glycinate, alkyl amino propyl hydroxy, acyl taurate, acyl glutamate, sodium lauryl sulfate, sodium lauryl polyether sulfate, C12 to C16 alkyl glucoside, sodium lauroyl glutamate and mixtures thereof, wherein the alkyl group and the acyl group each have 8 to 19 carbon atoms.

6. The composition according to claim 1, wherein (c) the conditioner is selected from the group consisting of polyquaternary ammonium salts, quaternized proteins, cationic guar gums, water-soluble silicone oils and mixtures thereof.

7. The composition according to claim 1, wherein (d) the aqueous carrier comprises water and one selected from the group consisting of sodium chloride, a thickening agent, a pH regulator, an anti-dandruff agent, a fragrance, an emulsifier, a chelating agent, an opacifier, a preservative, a pearling agent, and mixtures thereof.

8. The composition according to claim 7, wherein the thickening agent is selected from the group consisting of sodium chloride, cocamide MIPA, PEG-150 distearate, ammonium chloride, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, polyacrylic acid, polyacrylate, polyurethane and polyoxyethylene with a high molecular weight; the anti-dandruff agent is selected from the group consisting of climbazole, zinc pyrithione, piroctone ethanolamine and triclosan; the preservative is selected from the group consisting of casson, paraben, sodium benzoate, salicylic acid, DMDM hydantoin and phenoxyethanol; and the fragrance is an artificial or natural fragrance.

9. The composition according to claim 1, wherein the composition is a shampoo.

10. A method for preparing the composition according to claim 1, comprising: stirring and mixing ingredients according to proportions thereof to a uniform state.

11. The composition according to claim 3, wherein the diisocyanate in the ingredient S1 is selected from the group consisting of toluene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate and dicyclohexylmethane diisocyanate.

12. The composition according to claim 3, wherein the macropolyol in the ingredient S2 is one or more of polyethylene glycol, polypropylene glycol, polyethylene glycol-propylene glycol, polytetrahydrofuran ether glycol, polycaprolactone diol, polycarbonate diol, poly(ethylene glycol adipate) diol, poly(1,4-butylene glycol adipate) diol, poly(neopentyl glycol adipate) diol, poly(1,6-hexane glycol adipate) diol and poly(neopentyl glycol adipate-1,6-hexane glycol) diol.

13. The composition according to claim 3, wherein the monohydric alcohol and/or diol containing a polyoxyethylene chain segment in a main chain and/or a side chain in the ingredient S3 are preferably one or more of Tegomer® D-3403 produced by Tego Chemie, YmerTM N120 produced by Perstrop and MPEG1200 produced by South Korea's Lotte Group.

14. The composition according to claim 3, wherein the diol small-molecular chain extender containing active hydrogen in the ingredient S4 is one or more of 1,3-propanediol, 1,4-butanediol, diethylene glycol, neopentanediol, 1,6-hexanediol and 1,4-cyclohexanedimethanol.

15. The composition according to claim 3, wherein the diamine small-molecular chain extender containing active hydrogen in the ingredient S5 is one or more of ethylene diamine, hexamethylene diamine, pentamethylene diamine, diethylene triamine, isophorone diamine, 4,4-diphenylmethane diamine and diethanolamine.

16. The composition according to claim 3, wherein the organic solvent with a low boiling point in the ingredient S6 comprises acetone and/or butanone.

17. The composition according to claim 3, wherein the catalyst in the ingredient S8 comprises dibutyl tin dilaurate or organic bismuth 8108 produced by the Shepherd Chemical Company.

18. The composition according to claim 3, wherein in the aqueous nonionic polyurethane dispersion, the polyoxyethylene chain segment has a content of 20% or more of the weight of the solids of the aqueous nonionic polyurethane and is located on the end or a side group of the molecular chain.

19. The composition according to claim 6, the conditioner is selected from the group consisting of guar hydroxypropyltrimethylammonium chloride, polyquaternium-10, polydimethylsilicone and mixtures thereof.

20. The composition according to claim 7, wherein the aqueous carrier comprises one or more of: 0 to 2% by weight of sodium chloride; 0 to 3% by weight of a thickening agent; 0 to 1% by weight of a pH regulator; 0 to 3% by weight of an anti-dandruff agent; 0 to 3% by weight of a fragrance; 0 to 3% by weight of an emulsifier; 0 to 0.5% by weight of a chelating agent; 0 to 1% by weight of an opacifier; 0 to 1% by weight of a preservative; and 0 to 1% by weight of a pearling agent.

Description

DETAILED DESCRIPTION

[0054] Raw materials used in examples and comparative examples:

[0055] WANNATE® IPDI (isophorone diisocyanate with a content of NCO (the mass of NCO groups/the total molecular mass) being about 37.8% from Wanhua Chemical Group Co., Ltd.);

[0056] WANNATE® HMDI (dicyclohexylmethane diisocyanate with a content of NCO being about 32.0% from Wanhua Chemical Group Co., Ltd.);

[0057] YmerTM N120 (poly(ethylene oxide) ether glycol with a hydroxyl value of 110 mgKOH/g, a number average molecular weight of about 1000 g/mol, and a functionality of 2 from the Perstorp Group, Sweden);

[0058] CMA-654 (polyneopentanediol adipate-hexanediol diol with a hydroxyl value of 74.8 mgKOH/g, a number average molecular weight of about 1500 g/mol, and a functionality of 2 from HuaDa Chemical Group Co., Ltd, Yantai);

[0059] WANNATE® HDI (hexamethylene diisocyanate with a content of NCO being about 50.0% from Wanhua Chemical Group Co., Ltd.);

[0060] VESTAMIN® A95 (sodium 2-[(2-aminoethyl)amino]ethanesulphonate which is an aqueous solution with a solids content of 51±2% and has an amine value of 260±20 mgKOH/g from EVONIK, Germany);

[0061] CHDM (1,4-cyclohexanedimethanol from Kellin Chemicals Co., Ltd.);

[0062] NPG (neopentyl glycol from Wanhua Chemical Group Co., Ltd.);

[0063] EDA (ethylenediamine from BASF, Germany);

[0064] 8108: an organic bismuth catalyst (from the Shepherd Chemical Company);

[0065] PPG1000 (polypropylene glycol from Shandong Bluestar Dongda Co., Ltd.);

[0066] IPDA (isophorone diamine from Wanhua Chemical Group Co., Ltd.);

[0067] Sodium laureth sulfate (an anionic surfactant from Shandong Baiqian Chemical Co., Ltd.);

[0068] C12 to C16 alkyl glucoside (a nonionic surfactant from Sinolight Surfactants Technology Co., Ltd.);

[0069] Sodium lauroyl glutamate (an amphoteric surfactant from Wuhan Easy Diagnosis Biomedicine Co., Ltd.);

[0070] Guar hydroxypropyltrimethylammonium chloride (a cationic guar gum conditioner from Guangzhou Tinci High-Tech Material Co., Ltd.);

[0071] Polyquaternium-10 (polyquaternium conditioner from Guangzhou Tinci High-Tech Material Co., Ltd.);

[0072] Polydimethylsilicone (a water-soluble silicone oil from Guangzhou Tinci High-Tech Material Co., Ltd.);

[0073] Polyacrylic acid polymer (a thickening agent from Lubrizol);

[0074] Citric acid (a pH regulator from Guangzhou Huazhiwang Chemical Co., Ltd.);

[0075] Zinc pyrithione (an anti-dandruff agent from Jining Baiyi Chemical Co., Ltd.);

[0076] Piroctone ethanolamine salt (an anti-dandruff agent from Shandong Baiqian Chemical Co., Ltd.);

[0077] Ammonium lauryl sulfate (an emulsifier from Henan Boteer Chemical Products Co., Ltd.);

[0078] Disodium EDTA (a chelating agent from AkzoNobel, USA);

[0079] Styrene/acrylate copolymer (an opacifier from Dow Chemical);

[0080] Phenoxyethanol (a preservative from Dow Chemical);

[0081] Ethylene glycol distearate and fatty alcohol ether sodium sulfate (a pearling agent from Jining Baiyi Chemical Co., Ltd.);

[0082] TCW2890404 (a fragrance from City Flower Flavors & Fragrances Ltd.).

[0083] Anionic Polyurethane

[0084] CMA-654 (from HuaDa Chemical Group Co., Ltd, Yantai) (80 g) and neopentyl glycol (2.5 g) were added to a four-necked flask, mixed and stirred for 10 min at 70° C., and cooled to 50° C. WANNATE® HDI (19 g) was added and reacted with the mixture. The reaction was tested, and when NCO % approximates 2.95 wt %, the prepolymer was cooled to 40° C. and dissolved in 150 g of acetone solvent. The prepolymer and the acetone solvent were mixed for 15 min, added with a solution of ethylene diamine (0.7 g) and VESTAMIN® A95 (5 g) in 15 g of deionized water, and reacted at 45° C. for 30 min. 210 g of water was added under a shear dispersion condition and then distilled under reduced pressure to remove acetone to obtain a polyurethane dispersion with a solids content of about 31 wt % and a particle size of 50 nm. (R=2.12, and there was no ethylene oxide chain segment).

[0085] Nonionic Polyurethane Dispersion-1

[0086] WANNATE® IPDI (S1) (87 g), PPG1000 (S2) (31 g), CHDM (S4) (29 g), YmerTM N120 (S3) (65 g), 8108 (S8) (0.0424 g) and acetone (S6) (21.2 g) were added to a four-necked flask equipped with a stirring rod and a thermometer, heated to 70° C., reacted until NCO reached 3.0% (a theoretical NCO value was 3.39%), and cooled to 40° C. The reaction solution was added with 212 g of acetone (S6) and then added with 487 g of distilled water (S7) when stirred at a high speed (1200 to 1500 r/min). After the reaction solution was dispersed, 4.2 g of EDA (S5) and 17 g of distilled water (S7) were added and stirred for 5 min to remove acetone and obtain a nonionic polyurethane dispersion-1 with a particle size of 26 nm and a solids content of 30 wt %. R=4.08, and polyoxyethylene chain segments account for 30% of the solids by weight.

[0087] Nonionic Polyurethane Dispersion-2

[0088] WANNATE® IPDI (S1) (90 g), PPG1000 (S2) (102 g), CHDM (S4) (21 g), YmerTM N120 (S3) (60 g), 8108 (S8) (0.05 g) and acetone (S6) (27.3 g) were added to a four-necked flask equipped with a stirring rod and a thermometer, heated to 70° C., reacted until NCO reached 2.3% (a theoretical NCO value was 2.70%), and cooled to 35° C. The reaction solution was added with 273 g of acetone (S6) and then added with 538 g of water (S7) when stirred at a high speed (1200 to 1500 r/min). After the reaction solution was dispersed, 4 g of EDA (S5) and 16 g of water (S7) were added and stirred for 5 min to remove acetone and obtain a nonionic polyurethane dispersion-2 with a particle size of 36 nm and a solids content of 30%. R=2.50, and polyoxyethylene chain segments account for 21.6% of the solids by weight.

[0089] Nonionic Polyurethane Dispersion-3

[0090] WANNATE® IPDI (S1) (63 g), PPG1000 (S2) (102 g), CHDM (S4) (9 g), YmerTM N120 (S3) (50 g), 8108 (S8) (0.04 g) and acetone (S6) (22.4 g) were added to a four-necked flask equipped with a stirring rod and a thermometer, heated to 70° C., reacted until NCO reached 2.1% (a theoretical NCO value was 2.33%), and cooled to 35° C. The reaction solution was added with 224 g of acetone (S6) and then added with 442 g of water (S7) when stirred at a high speed (1200 to 1500 r/min). After the reaction solution was dispersed, 3 g of EDA (S5) and 12 g of water (S7) were added and stirred for 5 min to remove acetone and obtain a nonionic polyurethane dispersion-3 with a particle size of 20 nm and a solids content of 30%. R=1.87, and polyoxyethylene chain segments account for 22.0% of the solids by weight.

Example 1

[0091] The formulations are shown in the following table (parts by weight). A preparation method includes: preparing ingredients according to their proportions, sequentially adding the ingredients when stirring at 1500 r/min and room temperature, adjusting a PH value to 5 to 6, and stirring the ingredients for 15 to 30 min until they are completely dispersed.

TABLE-US-00001 Comparative Comparative Comparative Comparative Raw Materials Example 1 Example 2 Example 3 Example 1 Example 2 Example 3 Example 4 Nonionic polyurethane 15 0 0 0 0 0 0 dispersion-1 Nonionic polyurethane 0 10 0 0 0 0 0 dispersion-2 Nonionic polyurethane 0 0 20 0 0 0 0 dispersion-3 Anionic polyurethane 0 0 0 0 0 0 20 dispersion Sodium laureth sulfate 14 14 14 14 14 14 14 Cocamidopropyl betaine 3 3 3 3 3 3 3 Guar 0 0.3 0 0 0.3 0 0 hydroxypropyltrimethyl ammonium chloride Polydimethylsilicone 0 0 0 0 0 1 0 Polyquaternium-10 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Fragrance 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Sodium benzoate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Salicylic acid 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Sodium chloride 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Piroctone ethanolamine 0.2 0.2 0.2 0.2 0.2 0.2 0.2 salt Deionized water Making Making Making Making Making Making Making the total the total the total the total the total the total the total weight of the weight of the weight of the weight of the weight of the weight of the weight of the composition composition composition composition composition composition composition to be 100 to be 100 to be 100 to be 100 to be 100 to be 100 to be 100

[0092] Test Method

[0093] A. Hair Tress Test In Vitro

[0094] A sodium laureth sulfate solution of 15 wt % was used for cleaning unused hairs. After the hairs were dried, a DIA STRON MTT175 hair tester was used for testing compression work to pull a hair stress by 15 cm at a 1 cm hole as an initial work of tensile force which was recorded as W.sub.initial. The compositions in the preceding examples and comparative examples (0.6 g) were used for cleaning the hair tress, and a MTT175 hair tester was used and the above test steps were repeated to obtain the test work of tensile force, which was recorded as W.sub.test. A difference between the test work of tensile force and the initial work of tensile force was recorded as W.sub.treatment=W.sub.test−W.sub.initial. A difference between the test work of tensile force and the initial work of tensile force for a commercially available brand of transparent volumizing shampoo was used as top control (W.sub.topcontrol), and a difference between the test work of tensile force and the initial work of tensile force for a blank shampoo (no polymer) was used as bottom control (W.sub.bottomcontrol). A volume index of the tested composition may be expressed as:

Volume index=100%×(W.sub.treatment−W.sub.bottomcontrol)/(W.sub.topcontrol−W.sub.bottomcontrol)

[0095] Hair tress smoothness test: A sodium laureth sulfate solution of 15 wt % was used for cleaning two groups of unused hair tresses. The preceding MTT175 hair tester was used for obtaining combing work as an initial combing work which was recorded as W.sub.initial1 and W.sub.initial2. The hair tresses were cleaned with a test shampoo (containing a polymer) and a blank shampoo (without any conditioner) which were diluted twenty times. Test combing work and blank combing work were obtained through the above test steps and recorded as W.sub.test and W.sub.blank, respectively. A dry hair combing smoothness index may be recorded as:

Smoothness index=(W.sub.blank/W.sub.initial2−W.sub.test/W.sub.initial1)*100%.

[0096] B. Experiments for Sensory Evaluation of Consumers

[0097] Volumizing test: 10 women with thin and soft hairs were recruited to clean hairs once every two days for 2 weeks and then evaluated the shampoos (from 1 to 5), where 1 represents soft hairs without a volumized effect, and 5 represents good hair volumizing.

[0098] Smoothness test: 10 women with thin and soft hairs were recruited to clean hairs once every two days for 2 weeks and then evaluated the shampoos (from 1 to 5), where 1 represents serious tangling, difficult combing and very large combing resistance of dry hairs, and 5 represents no tangling, easy combing and almost no resistance.

[0099] Dandruff: 10 women with thin and soft hairs were recruited to clean hairs once every two days for 2 weeks and then evaluated the shampoos (from 1 to 5), where 1 represents serious dandruff, and 5 represents almost no dandruff.

[0100] Shampoo appearance: the transparency in appearance of the shampoo was scored and evaluated (from 1 to 5), where 1 represents a lowest degree to which the transparency in appearance of the shampoo was accepted, and 5 represents a highest degree to which the transparency in appearance of the shampoo was accepted.

[0101] Evaluation Results:

TABLE-US-00002 Hair Tress Test in Vitro (%) Sensory Evaluation of Consumers (1 to 5) Evaluation Smoothness Shampoo Item VolumeIndex Index Volumizing Smoothness Dandruff Appearance Example 1 120 96 5 5 5 5 Example 2 101 92 4 5 5 5 Example 3 130 98 5 5 5 4 Comparative 0 78 1 3 5 5 Example 1 Comparative 8 80 1 4 5 5 Example 2 Comparative 5 85 1 4 5 1 Example 3 Comparative 103 77 4 3 5 2 Example 4 Commercially 100 60 4 2 5 5 available brand of transparent volumizing shampoo

[0102] It can be seen from the evaluation results that Example 1, Example 2 and Example 3 have relatively excellent volumizing effect, good smoothness and good appearances and are not prone to dandruff from the aspects of hair tress and consumer evaluation.