KR950008761B1 - Method of improvement for sampoo composition stability compring non-volatile high polymer silicon oil - Google Patents

Abstract

The stability of a shampoo compsn. containing a water-insoluble nonvolatile polymeric silicone oil, a silicone gum and an anion surfactant is improved by the use of a suspension. The suspension is composed of 1.5-4.0 wt.% of a betaine or imidazoline type ampholytic surfactant, 0.5-4.0 wt.% of a monoester or diester type C16-18 fatty acid ethylene glycol ester, 0.5-8.0 wt.% of a diethanol type C12-16 fatty acid alkanol amide, 0.5-5.0 wt.% of a polyether-modified silicone oil and 0.1-3.0 wt.% of a sodium magnesium silicate. The silicone oil is pref. polydimethylsiloxane having 1000-600000 cst viscosity, and the silicone gum is pref. polydimethylsiloxane having 1000000-15000000 cst viscosity.

Description

How to improve the stability of shampoo compositions containing non-volatile polymer silicone oils

The present invention relates to a method for improving the stability of a shampoo composition containing a silicone oil, and more particularly, using a suspending agent comprising a polyether modified silicone oil, an amphoteric ion surfactant and sodium magnesium silicate as a main component. It relates to a method for improving the stability of a shampoo composition containing a nonvolatile polymer silicone oil.

Hair is damaged by physical factors (brassing, hair removal, blowers, dryers) due to daily hair care, chemical factors (cold perm, hair dye, bleach) and environmental factors (ultraviolet rays, heat) due to cosmetic chemical treatment. The gloss, flexibility, and softness of the hair are reduced and combing and grooming are difficult due to the generation of static electricity and porosity of the hair. In addition, as the frequency of hairstyling increases in comparison with the past, damage to hair due to physical factors caused by frequent haircutting becomes a problem.

So, to solve this problem, various conditioning and hair protection agents have been added to the shampoo. However, most of the conditioning agents or hair protection agents added to the shampoo are water-soluble, and thus did not completely solve the hair damage caused by various factors such as frequent hair washing. However, when the shampoo containing insoluble non-removable polymer silicone oil and silicone gum is used for such damaged hair, it is adsorbed and coated on the damaged damaged hair to make the surface of the hair uniform, thereby improving hand feel, combing and grooming. It is well-known that it removes diffuse reflection on the surface of the hair to increase the gloss of the hair and suppress the generation of static electricity so that the hair is smoothly trimmed and smoothed.

However, it is well known that such polymer silicone oils have poor compatibility with other ingredients of silicone gum shampoos and are very difficult to stabilize by addition to the shampoo base. Therefore, many studies have been conducted to solve such problems, and recently, products containing insoluble nonvolatile polymer silicone oil and silicone gum have been considerably developed.

Patents for the development of such polymers containing silicone oils and silicone gums are described in US Pat. Nos. 4704272, 4741855, 4788006, 4842850, UK Pat. No. 2177108, 2178443, European Patent (EP) 208533. No. 282888, 285389, Japanese Patent (JP) 62-077311, 62-210022, 1-013013, and the like. It is characterized by being dispersed in stearates and fatty acid alkanolamides and stabilized with thickeners such as xanthan gum or cellulose derivatives. It will take a long time to rinse off and lack a fresh feeling. And product stability is bad at high temperature (37-45 degreeC).

Therefore, the inventors of the present invention, as shown in Table 1, the insoluble non-volatile polymer silicone oil and silicone gum acts with a polyether-modified silicone oil similar to this silicone oil and a hydrophobic portion, and an anionic surfactant, has an excellent thickening effect and an anionic surfactant. Due to its low irritation to eyes and skin and excellent compatibility with many other ingredients in shampoos, it is an excellent insoluble non-volatile polymer silicone with a zwitterionic surfactant and thixotropyr of betaine and imidazoline type When used in combination with a new suspending agent such as sodium magnesium silicate, which has a very good dispersibility of oil and silicone gum, and a conventional suspending agent such as ethylene glycol stearate and fatty acid alkanolamide, the existing shampoo Has a long time to rinse clean On the other hand, by adding sodium magnesium silicate, as shown in Table 2, it is possible to prepare a shampoo composition containing an insoluble non-removable polymer silicone oil and a silicone gum having excellent high temperature stability and easy rinsing as shown in Table 2. The present invention has been completed.

In the following, Table 1 showing the existing shampoo composition and the composition of the shampoo composition of the present invention and Table 2 showing the stability and rinsability of these shampoos are shown.

TABLE 1

A: General shampoo composition

B: Similar shampoo composition of US Pat. No. 4,704,272

C: shampoo composition of the present invention

TABLE 2

That is, the present invention provides a method for improving the stability of a shampoo composition containing an insoluble non-removable polymer silicone oil, a silicone gum, and an anionic surfactant as an active ingredient, wherein the shampoo composition is characterized by using a suspending agent having the following composition. It relates to a method of improving the stability of the.

[Suspension]

(1) 1.5 to 4.0% by weight of zwitterionic surfactants of betaine type and imidazoline type;

(2) 0.5 to 4.0% by weight of a fatty acid ethylene glycol ester of a mono or diester type having from 16 to 18 carbon atoms in the fatty acid;

(3) 0.5 to 8.0% by weight of a fatty acid alkanolamide of diethanol type having a carbon number of 12 to 16 carbon atoms;

(4) 0.5 to 5.0% by weight of polyether-modified silicone oil; And

(5) 0.1-3.0% by weight of sodium magnesium silicate.

Hereinafter, each component used in the shampoo composition of the present invention will be described in detail.

Anionic surfactants are added in an amount of 5.0 to 25.0% by weight. The types of anionic surfactants are sodium lauryl sulfate, polyoxyethylene lauryl ether sulfate, ammonium lauryl sulfate, polyoxyethylene lauryl ether ammonium sulfate and lauryl sulfate diethanolamide. , Polyoxyethylene lauryl ether sulfate diethanolamide, lauryl sulfate triethanolamide, polyoxyethylene lauryl ether sulfate triethanolamide, disodium cocamido MIP sulfo succinate, disodium lauramido M pie sulfoxy Nate, disodium amido AMP sulfolacinate, potassium coco hydrolyzed animal protein, sodium coco hydrolyzed animal protein, tie coco hydrolyzed degree animal protein, sodium coco coil glutamate, teecocoil Glutamate, sodium lauroyl glutamate, tee Ilauro ilglutamate, sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, sodium methyl lauroyl taurate, sodium methyl cocoyl taurate, sodium lauroyl isethionate, sodium cocoyl isethionate, etc. There is and used alone or in combination.

Suspending agent is added in the amount of 3.0 to 25.0% by weight, and the types of amphoteric and imidazoline type amphoteric ionic surfactants, fatty acid ethylene glycol esters, fatty acid alkanolamides, polyether-modified silicone oils, sodium magnesium silicate and the like are included. Have mixed use.

Among these suspending agents, amphoteric ionic surfactant is added at 1.5 to 4.0% by weight, and the types are coco amppocarboxy glycinate, coco amppocarboxy propionate, coco amppo glycinate, coco amppo propionate, lauro amppo carboxyglycol. Sinate, lauroampo carboxy propionate, lauroampo glycinate, lauroampopropionate, cocamidopropylbetaine, lauramidopropylbetaine, cocobetaine, laurylbetaine, etc. Use a mixture of phosphorus and imidazoline types.

Fatty acid ethylene glycol esters are added in an amount of 0.5 to 4.0% by weight, and glycol stearate and glycol distearate are used alone or in combination. The fatty acid alkanol amide is added in an amount of 0.5 to 8.0% by weight, and the kinds thereof include cocamide die, lauramid die, and lauroyl myristoyl diethanol amide, which are used alone or in combination.

The polyether-modified silicone oil is added at 0.5 to 5.0% by weight, and the polyoxyethylene (POE) and polyoxypropylene (POPE) side chains are copolymers of dimethylpolysiloxane, and the addition ratio of POE and POPE (POE / POPE) is It is dimethicone polyphenol which exists in the range of 100-35 / 0-65.

Sodium magnesium silicate is added at 0.1 to 3.0% by weight.

Insoluble non-volatile polymer silicone oil and silicone gum are added at 0.5 to 8.0 wt%, insoluble non-volatile polymer silicone oil is polydimethylsiloxane in the range of 10,000 to 600,000 centistokes (cst), and silicone gel viscosity is 1,000,000 Polydimethylsiloxane in the range of ˜15,000,000 centistokes (cst), with a polydimethylsiloxane (-[-(CH ₃ ) ₂ SiO-]-n) structure of 5,000 to 9,000 units, that is, n = 5,000 to 9,000 The resulting molecular weight is about 400,000 to 700,000 polymer silicon. As described above, it can be seen that the shampoo composition containing the insoluble nonvolatile polymer silicone oil and the silicone dot having improved stability of the composition has an excellent effect. It is like a bell.

EXAMPLES 1-6

The component A is heated to 70-72 ° C. and mixed to a uniform state, followed by heating and mixing to 70-72 ° C. to add a component A to a uniform state, which is then mixed to a uniform state and cooled to 45 ° C. Add component C to the mixing base, mix to a uniform state and cool to room temperature to obtain the product.

Claims (3)

A method for improving the stability of a shampoo composition containing an insoluble nonvolatile polymer silicone oil, a silicone gum, and an anionic surfactant as an active ingredient, wherein the stability of the shampoo composition is improved by using a suspending agent having the following composition. Way: [Suspension] (1) 1.5 to 4.0% by weight of zwitterionic surfactants of betaine type and imidazoline type; (2) 0.5 to 4.0% by weight of a fatty acid ethylene glycol ester of a mono or diester type having from 16 to 18 carbon atoms in the fatty acid: (3) 0.5 to 8.0% by weight of fatty acid alkaolamide of the diethanol type in the range of 12 to 16 carbon atoms (4) 0.5-5.0 wt% of polyether-modified silicone oil: and (5) 0.1-3.0% by weight of sodium magnesium silicate. The polyether-modified silicone oil of claim 1 is a copolymer of polyoxyethylene (POE) and dimethylpolysiloxane having a polyoxypropylene (POPE) side chain, wherein the addition molar ratio (POE / POPE) of POE to POPE is 100. It is a dimethicone polyol in the range of -35 / 0-65. The method of claim 1 wherein the insoluble non-removable polymeric silicone oil is a polydimethylsiloxane having a viscosity in the range of 10,000 to 600,000 centistokes (cst): an insoluble nonvolatile silicone gum has a viscosity in the range of 1,000,000 to 15,000,000 centistokes (cst) Polydimethylsiloxane, wherein the dimethylsiloxane unit is 5,000 to 9,000 units, the molecular weight is 400,000 to 700,000 characterized in that the polymer silicone.