JPH0372042B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a cosmetic composition containing a polymer of (meth)acrylic acid and glycerin ester,
More specifically, the present invention relates to a cosmetic that facilitates the incorporation of water into products that have conventionally been difficult to incorporate, and thereby provides appropriate moisture, firmness, and flexibility to the skin and hair. [Prior Art] Cosmetics include skin cosmetics, makeup cosmetics, body cosmetics, hair cosmetics, etc., but one of their most important purposes is to retain moisture in the skin and hair, and to moisturize the skin and hair. One example is that it gives strength and flexibility. [Problem to be solved by the invention] Recently, there has been a strong interest in caring for the skin and hair. The important issues are whether the moisture contained in the product can be retained as much as possible, and whether the volatilization of the moisture contained in the product can be suppressed as much as possible even if the product is left in a dry condition. is strongly requested. [Means for Solving the Problems] Under these circumstances, the present inventors have conducted intensive research and found that when one or two selected from polyglyceryl acrylate and polyglyceryl methacrylate are blended into cosmetics, conventional moisturizers can be improved. The present inventors have discovered that it is possible to obtain cosmetics that have significantly better moisturizing properties and feel when used than the cosmetics in which they are formulated, leading to the completion of the present invention. The polyglyceryl acrylate and polyglyceryl methacrylate used in the present invention are polymers of esters of (meth)acrylic acid and glycerin, and the appropriate total amount of these in cosmetics is in the range of 0.1 to 50% by weight. . In other words, if it is less than 0.1% by weight, the effect of the present invention will not occur;
Moreover, if it exceeds 50% by weight, it becomes impossible to formulate it as a cosmetic. Furthermore, in the present invention, MEADOW TECHNICAL
CORPORATION) Rube Braziel CG
(LUBRAJEL CG) is also available.
Lubrasiel CG is a gel of polyglyceryl methacrylate and water, and contains some propylene glycol and methylparapen and propylparapen as preservatives. Cosmetics of the present invention include liquid cosmetics such as lotions, serums, hair styling products, emulsified cosmetics such as milky lotions, creams, hair creams, and liquid foundations, lipsticks, oil-based foundations, and solid powder powder.・Powder foundation ・Eye shadow ・
Examples include paste or solid cosmetics such as blusher, and cleaning agents such as conditioners, soaps, and facial creams. The characteristic of polyglyceryl acrylate and polyglyceryl methacrylate is that they have a high moisture retention ability, which means that they can be used not only when incorporated into cosmetics and applied to the skin or hair, but also when the product is left in dry conditions to prevent moisture evaporation as much as possible. It is very useful because it has the effect of being able to suppress the effects. Next, examples of the present invention will be described. below%
indicates weight %. [Example 1] Liquid foundation (ingredients) % (1) Stearic acid 2.5 (2) Setanol 1.0 (3) Glyceryl monostearate 1.0 (4) Sorbitan sesquioleate 0.3 (5) Polyoxyester monooleate 0.2 Tyrene Sorbitan (20E.O.) (6) Squalane 3.0 (7) Liquid paraffin 3.0 (8) Glycerin fatty acid ester 5.0 (9) Fragrance appropriate amount (10) Titanium oxide 10.0 (11) Titanium mica 0.5 (12) Talc 0.5 (13) Pigment 1.0 (14) 1,3-butylene glycol 5.0 (15) Sorbitan sesquioleate 0.2 (16) Triethanolamine 1.2 (17) Preservative appropriate amount (18) Polyglyceryl acrylate 10.0 (19) Purified water Remaining amount (manufacturing method) A Components (1) to (9) are dissolved by heating (70°C). B Mix ingredients (10) to (15) using a triple roll. C Components (16) to (19) and B are mixed and dissolved by heating (70°C). D Add C to A, emulsify it, and cool it to obtain a liquid foundation. The liquid foundation, which is a product of the present invention, obtained as described above had excellent moisturizing properties and a feeling of use. Here, in order to confirm the excellent moisturizing properties and feeling of use of the liquid foundation of the present invention, an evaluation was conducted using a sensory test along with the liquid foundation of Comparative Example 1.
The sensory test was conducted by a panel of 11 people on a 5-point scale for 6 items. Note that the higher the score, the better. The results are shown in Table 1. In addition, the formulation of the liquid foundation of Comparative Example 1 is that in the formulation of the liquid foundation of Example 1, carboxyvinyl polymer (neutralized (19) is 1.0%, and the rest is ingredients (19).
of purified water. The liquid foundation of Comparative Example 1 was manufactured in the same manner as the liquid foundation of Example 1.

[Table] As is clear from the results in Table 1, the liquid foundation of Example 1, which is the present invention, has superior moisturizing properties and feeling of use compared to the liquid foundation of Comparative Example 1. It was something I had. [Example 2] Powder foundation (ingredients) % (1) Squalane 1.0 (2) Liquid paraffin 1.0 (3) Glycerin fatty acid ester 1.0 (4) Monooleic acid polyexie 0.5 Tyrene sorbitan (20E.O.) (5) 1,3-Butylene glycol 2.0 (6) Glycerin 1.0 (7) Lubraziel CG (Meadow 5.0 manufactured by Technical Corporation) (8) Fragrance 0.5 (9) Titanium oxide 10.0 (10) Mica titanium 6.0 (11) Talc 24.0 (12) ) Pigment 2.0 (13) Mica Remaining amount (manufacturing method) A Mix ingredients (1) to (8) uniformly. B Mix and grind components (9) to (13). After adding A to B and mixing, press molding is performed to obtain a powder foundation. In order to confirm the excellent moisture retention ability of the powder foundation of the present invention obtained as described above, a test was conducted together with the powder foundation of Comparative Example 2. In the test, 10g of each powder foundation was press-molded, placed in a compact container and left at room temperature, immediately after, one day later,
The weight was measured 2 days later and then 4 months later to examine changes in water content. The results are shown in Table 2. In addition, the formulation of the powder foundation as Comparative Example 2 is based on the formulation of the powder foundation of Example 2.
In place of 5.0% CG, 5.0% purified water was used. The powder foundation of Comparative Example 2 was produced in the same manner as the powder foundation of Example 2.

[Table] As is clear from the results in Table 2, the powder foundation of Example 2, which is a product of the present invention, has a lower
It has excellent moisturizing properties and feeling when used, and also has excellent water retention ability, making it possible to incorporate water into powder foundations, which have conventionally been difficult to retain moisture. [Example 3] Oil-based foundation (ingredients) % (1) Candelilla wax 3.0 (2) Liquid paraffin 7.0 (3) Glycerin fatty acid ester 16.0 (4) Squalane 7.0 (5) Vaseline 3.0 (6) Dimethylpolysiloxane (10cs) 14.0 (7) Fragrance 0.5 (8) Polyglyceryl methacrylate 5.0 (9) Polyoxygen monooleate 0.5 Tylesorbitan (20E.O.) (10) Purified water 5.0 (11) Pigment 2.5 (12) Titanium oxide 15.0 (13 ) Talc 10.0 (14) Mica Remaining amount (manufacturing method) A Heat and dissolve components (1) to (7) (70°C). B Add ingredients (8) to (14) to A and mix with a triple roll. CB is filled into a container at 80°C and cooled to obtain an oil-based foundation. The oil-based foundation, which is the product of the present invention obtained as described above, had excellent moisturizing properties and feeling on use, and also had good moisture retention ability. [Example 4] Lotion (ingredients) % (1) Polyoxyester monooleate 0.2 Tyrene sorbitan (20E.O.) (2) Fragrance 0.1 (3) Ethanol 10.0 (4) Propylene glycol 5.0 (5) Glycerin 1.0 (6) ) Lubraziel CG 10.0 (7) Pigment Appropriate amount (8) Preservative 0.1 (9) L-Arginine 0.05 (10) Purified water Remaining amount (manufacturing method) A Mix and dissolve components (1) to (3). B Mix and dissolve components (4) to (10). C Add A to B and mix to obtain lotion. The lotion, which is the product of the present invention, obtained as described above had extremely excellent moisturizing properties and a feeling of use. It was a lotion with a long-lasting moisturizing feeling without any sticky feeling on the skin, which is common with conventional moisturizing properties. [Example 5] Emulsion (ingredients) % (1) N-stearoyl-L-gluta 0.1 Mic acid (2) Stearyl alcohol 1.0 (3) Stearic acid monoglyceride 2.0 (4) Liquid paraffin 6.0 (5) Sorbitan sesquioliate 0.3 (6) Hydrogenated oil 2.0 (7) Fragrance 0.1 (8) Sodium hydroxide 0.1 (9) Propylene glycol 8.0 (10) Preservative 0.1 (11) Polyglyceryl methacrylate 3.0 (12) Purified water Remaining amount (manufacturing method) A Component (1) ) to (7) are dissolved by heating (70°C). B Components (8) to (12) are dissolved by heating (70°C). C Add B to A, emulsify, and cool to obtain a milky lotion. The emulsion obtained as described above, which is a product of the present invention, had extremely excellent moisturizing properties and a feeling of use. Also, the feel of polyglyceryl methacrylate gave an extremely good feel to the first touch of the emulsion. In other words, it had a smoothness and richness not found in conventional water-soluble polymers. The rest of the emulsion had no sticky feeling and was highly moisturizing, and the emulsion had a long-lasting moisturizing feeling.

Claims (1)

[Claims] 1. A cosmetic comprising 0.1 to 50% by weight of one or two glycerin ester polymers selected from polyglyceryl acrylate and polyglyceryl methacrylate.