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Non-ionic silicon-containing waterborne polyurethane dispersion and preparation thereof, and application of non-ionic silicon-containing waterborne polyurethane dispersion in hair cleaning

A water-based polyurethane, non-ionic technology, used in hair care, cosmetic preparations, cosmetic preparations, etc., can solve the problems of non-smoothness, excessive deposition of active ingredients in the hair, hair frizz, etc., and achieve the effect of increasing the spacing

Active Publication Date: 2020-04-07
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional volumizing shampoos have certain disadvantages such as not providing real volume due to excessive deposition of active ingredients on the hair
Another downside associated with volumizing shampoos is that while they increase hair volume, hair can be frizzy and unruly
At present, silicone oil is generally added to the shampoo to achieve the smoothness of the hair, but there is a problem when using silicone oil: as the frequency of shampooing increases, the silicone oil will deposit on the hair strands, making the hair look flat , lack of fullness
[0003] Chinese patent application CN107126378A introduces "Use of a Surfactant Composition and Cleanser Made from It", which mainly involves the application of anionic water-based polyurethane in shampoo, which has a styling effect, but cannot achieve volume and smoothness at the same time. slippery effect

Method used

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  • Non-ionic silicon-containing waterborne polyurethane dispersion and preparation thereof, and application of non-ionic silicon-containing waterborne polyurethane dispersion in hair cleaning
  • Non-ionic silicon-containing waterborne polyurethane dispersion and preparation thereof, and application of non-ionic silicon-containing waterborne polyurethane dispersion in hair cleaning
  • Non-ionic silicon-containing waterborne polyurethane dispersion and preparation thereof, and application of non-ionic silicon-containing waterborne polyurethane dispersion in hair cleaning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Example 1: Silicon-modified polyurethane 1

[0078] Add 48 grams of PPG1000, 9 grams of CHDM, 71 grams of N120, and 73 grams of KF6001 into a four-necked flask with a condenser and a stirrer, then add 65 grams of IPDI, 0.05 grams of organic bismuth 8108, and 26.6 grams of acetone at 75 ℃ for 1.5 hours, the NCO value is 1.97% (theoretical value is 2.07%);

[0079] After cooling down to 20°C, add 266 grams of acetone and 100 grams of sicare 2422;

[0080] Add 726 grams of water under high-speed (1400 rpm) shear dispersion, and stir for 5 minutes to obtain a coarse emulsion; then add a mixed solution of 3.2 grams of EDA and 13 grams of deionized water, stir and react for 10 minutes, and the reaction temperature is 35 ° C;

[0081] Afterwards, the solvent acetone was removed from the crude emulsion at 45° C. and 0.01 MPa vacuum condition to obtain a water-based polyurethane emulsion with a particle size (average particle size) d=40 nm and a solid content of 30 wt%.

Embodiment 2

[0082] Example 2: Silicon-modified polyurethane 2

[0083] Add 2 grams of PPG2000, 45 grams of CHDM, 109 grams of N120, and 154 grams of KF6002 into a four-necked flask with a condenser and a stirrer, then add 167 grams of HMDI, 0.07 grams of organic bismuth 8108, and 38.6 grams of acetone at 75 ℃ for 1.5 hours, the NCO value is 2.60% (theoretical value is 2.67%);

[0084] After cooling down to 20°C, add 243 grams of acetone and 140 grams of sicare 2422;

[0085] Add 1036 grams of water under high-speed (1500 rpm) shear dispersion, stir for 5 minutes to obtain a coarse emulsion, then add a mixed solution of 8 grams of EDA and 40 grams of deionized water, continue stirring for 10 minutes, and the reaction temperature is 40 ° C;

[0086] The coarse emulsion was desolventized with acetone at 45° C. and 0.01 MPa vacuum conditions to obtain a water-based polyurethane emulsion with a particle size (average particle size) d=60 nm and a solid content of 30 wt%.

Embodiment 3

[0087] Example 3: Silicon-modified polyurethane 3

[0088] Add 1 gram of PPG1000, 39.1 grams of CHDM, 5 grams of 1,4-butanedithiol, 109 grams of N120, and 90 grams of KF6001 into a four-necked flask with a condenser and a stirrer, and then add 141 grams of IPDI, 0.07 Gram organic bismuth 8108, 38.6 grams of acetone, reacted at 75°C for 1.5 hours, the NCO value was 3.15% (theoretical value was 3.26%);

[0089] After cooling down to 20°C, add 386 grams of acetone and 140 grams of sicare 2422;

[0090] Add 1036 grams of water under shear dispersion at 1500 rpm, stir for 5 minutes to obtain a coarse emulsion, then add a mixed solution of 8 grams of EDA and 40 grams of deionized water, continue stirring for 10 minutes, and the reaction temperature is 40 ° C;

[0091] The coarse emulsion was desolventized with acetone at 45° C. and 0.01 MPa vacuum conditions to obtain an aqueous polyurethane emulsion with an average particle diameter of d=60 nm and a solid content of 30 wt %.

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Abstract

The invention provides a non-ionic silicon-containing waterborne polyurethane dispersion and preparation thereof, and application of the non-ionic silicon-containing waterborne polyurethane dispersionin hair cleaning. The non-ionic silicon-containing modified waterborne polyurethane dispersion is applied to hair cleaning products, and is beneficial for achieving the effects of smoothness and plumpness of dry hair at the same time. The silicon-containing modified waterborne polyurethane dispersion is prepared by reacting raw materials including a diisocyanate terminated prepolymer, macromolecular siloxane and an amine chain extender, wherein the diisocyanate terminated prepolymer is obtained through a reaction of reaction components including isocyanate, a dihydric alcohol chain extender,hydroxyl siloxane, polyhydric alcohol and a hydrophilic chain extender, and the hydrophilic chain extender is monohydric alcohol and / or dihydric alcohol with a main chain and / or a side chain containing polyoxyethylene chain segments.

Description

technical field [0001] The invention relates to a nonionic silicon-containing modified aqueous polyurethane dispersion and its preparation, as well as its application in hair cleaning compositions such as shampoo. Background technique [0002] With the progress of human society, people have more and more demands for cleaning products, but also put forward higher requirements for the performance of cleaning products. Shampoo is a cleaning product that people often use in their daily life. In addition to meeting the most basic requirement of cleaning, it has put forward higher requirements. People with fine hair often use a "volumizing" shampoo to add volume to the hair. However, conventional volumizing shampoos have certain disadvantages, for example, they cannot provide a real volumizing effect due to excessive deposition of active ingredients on the hair. Another downside associated with volumizing shampoos is that while they add volume to hair, the hair can be frizzy and...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/32A61K8/87A61K8/89A61Q5/02A61Q5/12
CPCA61K8/87A61K8/89A61Q5/02A61Q5/12C08G18/3212C08G18/3228C08G18/3893C08G18/48C08G18/6674C08G18/6685C08G18/32C08G18/61C08G18/66
Inventor 周操张洁李棒棒贾海东
Owner WANHUA CHEM GRP CO LTD
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