JP2007099667A - Polymer-containing composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems wherein although stain on the skin is removed by a cleansing cosmetic or a face washing cosmetic, a chemical peeling cosmetic or a gommage cosmetic is used because a strong stain or an old horny substance having a strong adhesive force and turnover elongated than the normal one can not be removed sufficiently by them, but a preparation having clear effects cannot be used safely without indication of a doctor, and requires a time for use. <P>SOLUTION: The polymer-containing composition is obtained by dissolving a water-soluble polymer consisting essentially of a carboxylic acid having a vinyl group such as acrylic acid, and a polyethylene glycol solid at room temperature. In another aspect, the polymer-containing composition is obtained by adding an electrolyte and other water-soluble polymers thereto. The polymer-containing composition can easily remove the stain and the old horny substance by forming an adsorbate by attaching a proper quantity thereof to the skin, and massaging the skin therewith. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a preparation for removing surface substances with low irritation, such as removing dirt and old keratin on the skin.

Clean the skin with a cleansing agent or facial cleanser, but use strong chemical stains and strong adhesive strength, turnover longer than normal, and old skin that cannot be removed sufficiently. Use chemical peeling or gommage. Has been.

However, chemical peeling materials that can be expected to be effective are prone to irritation on the skin, and many products are used under the guidance of doctors.

Further, there are preparations for polishing the skin containing a solid substance in the conventional gommage materials, but physical irritation tends to be a problem, and attention to use is necessary.

In addition, there is a formulation in which an anionic water-soluble polymer and a cationic active agent are blended and an external force such as massage is applied, so that the structure is broken and a medium that easily adsorbs dirt is generated. However, the pH was low, irritation to the skin occurred, and safety remained a problem.

It is a formulation that produces a medium that adsorbs water-soluble polymer dirt due to external pressure such as massage, and there are types that have a pH-safety problem, but it takes too long to massage until a medium that adsorbs dirt is produced. There was a problem in usability.

There were no formulations that were satisfactory in terms of soil removal effect, safety against physical and chemical stimuli, and usability.

It is a problem of a preparation intended to improve the above problems, to be safe and easy to use on the skin, and to have a clear effect of removing surface dirt such as old keratin.

In order to achieve the above object, the preparation according to the present invention comprises a polymer obtained by using one or more kinds of carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or a carboxylic acid thereof. A copolymer of polyhydric alcohol, a copolymer of carboxylic acids thereof and a substance having a vinyl group such as styrene, or a copolymer of one or more of the carboxylic acids esterified with alcohol By combining water and polyethylene glycol, which is solid at room temperature, with water, a substance that adsorbs dirt that is difficult to remove and old keratin is massaged, and by adding electrolytes and other water-soluble polymers, more It is possible to contain a high concentration of adsorbent in the formulation, and there is almost no physical irritation. It is characterized in that it possible stimulation also little, adsorbent material in a simple massage be easily generated.

Adjustment of pH is performed in order to give an irritation to the skin of many aqueous solutions of polymers mainly composed of carboxylic acids having a vinyl group, such as sodium hydroxide, triethanolamine, lysine, etc. Any substance that can be adjusted to the neutral side regardless of organic or inorganic can be used.

It is safe and usable for the skin, and it is possible to obtain the effect of removing surface dirt such as keratin that has become old.

Polymers using one or more carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or copolymers of the carboxylic acids and polyhydric alcohols, or the carboxylic acids and styrene 1 type or 2 types or more of the copolymer with a substance having a vinyl group or the like, or a copolymer obtained by esterifying a part of the carboxylic acid with an alcohol. A composition is obtained, but higher loadings are desirable.

Polymers using one or more carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or copolymers of the carboxylic acids and polyhydric alcohols, or the carboxylic acids and styrene Any polyethylene glycol that combines a copolymer with a substance having a vinyl group, etc., or a part of the carboxylic acid with one or more copolymers esterified with an alcohol, should be selected as long as it is solid at room temperature. Can do. The sesame effect cannot be expected so much, but it is possible to use polyethylene glycol which is liquid at room temperature.

Polymers using one or more carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or copolymers of the carboxylic acids and polyhydric alcohols, or the carboxylic acids and styrene A copolymer with a substance having a vinyl group, or a part of the carboxylic acid is one or more of a copolymer esterified with an alcohol and polyethylene glycol that is solid at room temperature, and is often used for chemical peeling. It is also possible to use a hydroxy acid such as glycolic acid or lactic acid.

Polymers using one or more carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or copolymers of the carboxylic acids and polyhydric alcohols, or the carboxylic acids and styrene A copolymer with a substance having a vinyl group, or a part of the carboxylic acid esterified with one or more of an esterified with an alcohol and polyethylene glycol that is solid at room temperature with citric acid, malic acid, Organic acids such as gluconic acid, lactic acid, glutamic acid, trimethylglycine and their salts, electrolytes of inorganic acids such as phosphoric acid, silicic acid, sodium chloride, potassium chloride, sodium phosphate, sodium dihydrogen phosphate, sodium carbonate and their salts It becomes possible to prepare a preparation that shows the effect more clearly. The organic acid and its salt or the electrolyte of the inorganic acid and its salt are effective even in a small amount, but it is desirable to add 5 mM or more per 100 g.

Polymers using one or more carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or copolymers of the carboxylic acids and polyhydric alcohols, or the carboxylic acids and styrene A copolymer with a substance having a vinyl group, or a copolymer of a part of the carboxylic acid esterified with alcohol and one or more of them and polyethylene glycol which is solid at room temperature, alginic acid, xanthan gum, carboxymethyl cellulose When a water-soluble polymer such as sodium is blended, the usability is different, and a preparation with a more preferred feeling of use can be obtained. It is also possible to mix a substance that has no physical stimulus or has a water-soluble polymer adsorbed on the surface of gentle cellulose or nylon powder.

Oil droplets can be added to the above preparation, and a cream or emulsion can be prepared. Polyhydric alcohols such as glycerin, dipropylene glycol, and sugar, alcohols such as ethanol and isopropyl alcohol, amino acids such as trimethylglycine and alanine, anti-inflammatory agents such as allantoin, plant extracts, and vitamin E can also be added. .

In addition, solids such as polyethylene powder and walnut powder can be blended, but physical stimulation needs to be considered.

A gel-like dosage form is mainly used, but it is also possible to prepare a dosage form such as cream, milky lotion, lotion or aerosol.

[Prescription example]
Examples are given below for two points: gel and cream.

Table 3 shows the formulations of Example 1 and Comparative Example 1 of Claim 1, and Example 2 and Comparative Example 2 of Claim 2. Table 4 shows the results of testing the production of substances that adsorb dirt and old keratin by taking appropriate amounts of these on the skin and performing massage. Both comparative examples were unable to produce adsorbents, and the examples were produced easily. It was found that the adsorbed material produced was light brown and adsorbed dirt and old keratin.

Claims (3)

Polymers using one or more carboxylic acids having a vinyl group such as acrylic acid, methacrylic acid and maleic acid as monomers, or copolymers of the carboxylic acids and polyhydric alcohols, or the carboxylic acids and styrene Polyethylene glycol which is a solid at room temperature with 0.5% by weight or more of one or more of a copolymer with a substance having a vinyl group, or a copolymer obtained by esterifying a part of its carboxylic acid with an alcohol A polymer-containing composition in which 0.1% by weight or more is dissolved in water and a precipitate is formed by giving a share. Organic acids such as citric acid, malic acid, gluconic acid, lactic acid, glutamic acid, trimethylglycine and their salts, or phosphoric acid, silicic acid, sodium chloride, potassium chloride, sodium phosphate, sodium dihydrogen phosphate, sodium carbonate The polymer-containing composition according to claim 1, comprising an electrolyte of an inorganic acid such as a salt thereof and a salt thereof. The polymer-containing composition according to claim 1, comprising a water-soluble polymer such as alginic acid, xanthan gum or sodium carboxymethylcellulose.