JP2002327101A - Transparent gel-like composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a transparent gel-like composition having improved sense of use, excellent storage stability with time, a mild action on the skin, exhibiting an excellent cleaning effect so as to greatly contribute industries. SOLUTION: This transparent gel-like composition is characterized by comprising a hydrophilic polyglycerol fatty acid ester having >=10 HLB and at least one or more kinds selected from a polyacrylic amide and an acrylic amide/ neutralized 2-acrylamido-2-methylsulfonic acid crosslinked copolymer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a transparent gel composition which has a good feeling upon use, has excellent storage stability over time, has a mild action on the skin, and has excellent lathering and washing effects.

[0002]

2. Description of the Related Art Conventionally, anionic surfactants such as alkyl sulfates, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl ether phosphates and α-olefin sulfonates have been used as surfactants in gel compositions. Widely used. However, these anionic surfactants have the drawback of being highly irritating to the skin. Also, sucrose fatty acid esters, polyglycerin fatty acid esters, polyethylene glycol fatty acid esters,
Nonionic surfactants such as polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene alkyl ether are also used, but they have a disadvantage that they have poor detergency and foaming power.

[0003] In addition, microemulsions have been conventionally used as gel compositions, but have a drawback that they cause irritation to the skin because a large amount of a surfactant is used. As a solution to these problems, a liquid crystal oil-based cosmetic using a specific surfactant has been proposed (Japanese Patent Publication No. 1-53845).
No.). However, although this cosmetic also has excellent storage stability after days, the gel has high elasticity and stickiness when used, which is not preferable.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a transparent gel composition having a good feeling upon use, excellent storage stability over time, a mild action on the skin, and excellent foaming and washing effects. In providing things.

[0005]

Under these circumstances, the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that hydrophilic polyglycerin fatty acid esters having an HLB of 10 or more, polyacrylamide, acrylamide / A transparent gel composition containing at least one selected from neutralized 2-acrylamide-2-methylsulfonic acid cross-linked copolymer is characterized by its detergency, foaming power, safety, feeling of use and aging The inventors have found that a transparent gel composition having excellent stability can be obtained, and have reached the present invention.

That is, the present invention relates to a hydrophilic polyglycerin fatty acid ester having an HLB of 10 or more and polyacrylamide, acrylamide / neutralized 2-acrylamide-2-
An object of the present invention is to provide a transparent gel composition comprising a transparent gel composition comprising at least one selected from methylsulfonic acid crosslinked copolymers.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The hydrophilic polyglycerin fatty acid ester used in the present invention has an HLB of 10 or more. Preferably, HLB is 12 or more. Here, the HLB is a numerical value indicating the balance between the hydrophilic group and the hydrophobic group of the surfactant, and is generally represented by the following formula proposed by Griffin. HLB value = 20 × MH / M (MH: molecular weight of hydrophilic group portion, M: molecular weight of surfactant) Further, the fatty acid to be composed has 8 to 22 carbon atoms, and is a saturated or unsaturated linear or branched chain. , Or a single or mixed fatty acid among derivatives such as fatty acids and hydroxy derivatives. The hydrophilic polyglycerin fatty acid ester used in the present invention preferably has a monoester content of about 50% or more. More preferably, it is 70% or more. The method for producing a polyglycerol having a high monoester content according to the present invention can be produced by addition polymerization of glycidol to a fatty acid using phosphoric acid or a phosphoric acid ester as a catalyst, but is not limited to this method. For the composition analysis of the hydrophilic polyglycerin fatty acid ester of the present invention, a reverse phase distribution column method by HPLC is effective, and the column is Wacosil 5c1.
82 (manufactured by Wako Pure Chemical Industries, Ltd .: column having an octadecyl group as a functional group, which is a reversed-phase distribution column). Developing solvent:
Methanol, flow rate: 0.75 ml / min, column oven temperature: 40 ° C., detection method: ultraviolet absorption method (λ: 21
0 nm), sample concentration: 10% (solvent: MeOH), and injection method: 5 ml. When the monoester content of the hydrophilic polyglycerin fatty acid ester in the present invention is less than 50%, the foaming power and the detergency are insufficient, and a transparent gel composition is difficult to produce, which is not preferable in terms of stability.

[0008] These hydrophilic polyglycerol fatty acid esters can be used alone or in combination of two or more kinds.
It is preferred that the compounding ratio is 90% by weight, especially 5 to 80% by weight. If the amount is less than 1% by weight, the detergency of the composition becomes insufficient, and if it exceeds 90% by weight, it becomes difficult to maintain the stability of the composition, which is not preferable.

The acrylamide / neutralized 2-acrylamido-2-methylsulfonic acid crosslinked copolymer used in the present invention is more particularly a copolymer crosslinked by a compound such as tetraallyloxyethane, allylsaccharose, or allylpentaerythritol. And
It has been partially or completely neutralized with potassium hydroxide, sodium hydroxide, aqueous ammonia or triethanolamine or monoethanolamine. These polyacrylamides, acrylamide / neutralization 2
The acrylamide-2-methylsulfonic acid crosslinked copolymer may be used as a mixture with other components, for example, isoparaffin, polyoxyethylene (7) lauryl ether and the like. One of these mixtures is SEPPI, France
It is commercially available from Company C under the trade name Sepigel 305. These polyacrylamides, acrylamide / neutralization 2
-Acrylamide-2-methylsulfonic acid cross-linked copolymer is based on the total composition of the transparent gel composition of the present invention.
It is desirable to mix in the range of 0.1 to 15%, particularly 1 to 10%. If it is less than 0.1%, the gel-forming power will be weak. If it is 15% or more, the detergency of the composition tends to decrease.

The transparent gel composition of the present invention contains the above-mentioned components as essential components, but other components may be appropriately added to the composition as long as the object of the present invention is achieved. I can do it.

That is, glycerin, diglycerin, 1,3
-Polyhydric alcohols such as butylene glycol, propylene glycol and polyethylene glycol, amino acids such as glycine, alanine, valine and glutamic acid, polypeptides such as hydrolyzed collagen, hydrolyzed silk and hydrolyzed wheat protein, and acyl hydrolyzed collagen sodium. Sodium salts of acylated polypeptides such as acyl hydrolyzed silk potassium, potassium salts, anionic surfactants such as sodium salts of fatty acids, lauryl alcohol,
Higher alcohols such as myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, and behenyl alcohol, silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane, liquid paraffin, hydrocarbons such as squalane and petrolatum, isostearyl isostearate, and tri-2 Ester oils such as glyceryl ethylhexanoate, olive oil, fats such as macadamia nut oil, jojoba oil, waxes such as candelilla wax, carnauba wax, carboxyvinyl polymers, thickeners such as xanthan gum, moisturizing ingredients, anti-inflammatory agents, Fungicides, preservatives, ultraviolet absorbers, antioxidants, inorganic and organic powders,
It can contain pigments, fragrances, pH adjusters and the like.

[0012] The transparent gel composition of the present invention may be used in shampoo, body shampoo,
Applied to facial cleansers, facial cleansers, makeup remover facial cleansers, and makeup remover facial cleansers. Next, the present invention will be described in more detail by way of examples. Note that the present invention is not limited to these examples.

Example 1 and Comparative Example 1 A cleaning composition was prepared according to the composition shown in the table, and the sensory feeling of use was evaluated based on the following evaluation criteria. Table 1 shows the results.

(Preparation method) Each component in the table is heated and melt-mixed at 70 ° C. This is stirred and cooled to around room temperature to obtain each composition. Sepigel 305 in the table is a polymer (manufactured by SEPPIC) comprising polyacrylamide, light liquid isoparaffin, and polyoxyethylene lauryl ether.

(Evaluation Method and Evaluation Criteria) 1) Transparent gel formation 透明; Completely transparent 〇; Slightly cloudy ×; Opaque 2) Feeling of use (moist feeling after washing) 10 healthy female panels (20 to 30 years old) After washing the bare skin with water and drying, apply a water-resistant oil-based foundation to the face. After 30 minutes, remove the foundation using the product of the present invention and a comparative product. After washing and drying, the skin condition is evaluated based on the following evaluation criteria. Sensory evaluation. ◎; Skin is very moist 〇; Slightly moist △: Slightly crisp ×: Slightly crisp 3) Evaluate the degree of fall of the foundation during the test of 2) based on the following evaluation criteria did. ◎; foundation dropped easily 〇; foundation fell over time Δ; foundation hardly fell over time ×; foundation hardly fell 4) Gel stability over time Each invention after preparation Product and comparative product in a glass bottle,
After standing in a thermostat and observing the condition over time, one month later, it was evaluated based on the following evaluation criteria. ◎: Gel state stable even after one month at a temperature condition of 50 ° C. or higher 〇: Gel viscosity slightly decreased △: Gel softening ×: Separation

[0016]

[Table 1]

As shown in Table 1, the transparent gel composition of the present invention is superior in stability and moist detergency to Comparative Examples.

[0018]

As described above, the present invention provides a transparent gel composition having a good feeling in use, excellent storage stability over time, a mild action on the skin, and excellent foaming and washing effects. It is clear to offer.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) C11D 1/68 C11D 1/68 3/37 3/37 10/02 10/02 17/08 17/08 ( 72) Inventor Masahiro Yamazaki 9-5 Akabori Shinmachi, Yokkaichi-shi, Mie Taiyo Chemical Co., Ltd.F-term (reference) EB28 ED02 FA02 FA16 FA18 FA21 FA26 4J002 BG121 BG131 EH056 GB00 GC00

Claims (3)

[Claims] An HLB containing at least one hydrophilic polyglycerin fatty acid ester having at least 10 and at least one selected from polyacrylamide and acrylamide / neutralized 2-acrylamide-2-methylsulfonic acid crosslinked copolymer. Transparent gel composition 2. The transparent gel composition according to claim 1, wherein the monoester content of the hydrophilic polyglycerin fatty acid ester is 50% or more. 3. The transparent gel composition according to claim 1, wherein the monoester content of the hydrophilic polyglycerin fatty acid ester is 70% or more.