JP2005298350A5 - - Google Patents

Description

The present invention relates to a shaving cosmetics, more particularly, about the gel shaving cosmetics.

In view of such a situation, the present inventors have sought for a technique for improving the coefficient of friction reduction and maintainability without impairing the basic gel characteristics, and as a result of intensive research efforts, 1) alkyl-modified . The inventors have found that such properties exist in gel-like shaving cosmetics containing carboxyvinyl polymer and 2) polyquaterniums, and have completed the invention. That is, this invention relates to the technique shown below.
(1) 1) an alkyl-modified carboxyvinyl polymer, 2), characterized in that it contains a polyquaternium compound, gel shaving cosmetics.
(2) the alkyl-modified carboxyvinyl polymer, characterized in that acrylic acid (C10-30) alkyl methacrylate cross-linked (crosslinked) copolymer, gel shaving cosmetic according to (1) Fee .
(3) the content of the alkyl-modified carboxyvinyl polymer, characterized in that from 0.1 to 1 wt%, (1) or gel shaving cosmetic according to (2).
(4) The gel-like shaving cosmetic according to any one of (1) to (3), wherein the polyquaternium is a polyquaternium having a crosslinked structure.
(5) The gel-like shaving cosmetic according to (4) , wherein the polyquaternium having the cross-linked structure is polyquaternium 39.
(6) The gel-like shaving cosmetic according to any one of (1) to (5), wherein the content of the polyquaternium is 0.01 to 2% by mass.
(7) The gel-like shaving cosmetic according to any one of (1) to (6), further comprising polyglycerol and / or a fatty acid ester thereof.
(8) The gel-like shaving cosmetic according to (7) , wherein the polyglycerin and / or fatty acid ester thereof contains diglycerin and decaglycerin fatty acid ester.
(9) before article weight ratio of glycerin and decaglycerol fatty acid ester, 2: 1 to 4: characterized in that it is a 1, gel shaving cosmetic according to (8).
(10) The gel-like shaving cosmetic according to any one of ( 7 ) to (9), wherein the content of the polyglycerol and the fatty acid ester thereof is 5 to 10% by mass.

(1) shaving cosmetics essential component der Luer alkyl modified carboxyvinyl polymer present invention shaving cosmetics of the present invention is a gel shaving cosmetics, containing an alkyl-modified carboxyvinyl polymer It is characterized by doing. Preferred examples of the carboxyvinyl polymer which is not alkyl-modified as a substrate include a copolymer or a polymer containing acrylic acid or methacrylic acid as a constituent monomer. In addition to the above-described monomers, a conventionally known monomer such as vinyl alcohol can be added as a constituent monomer, if desired. An alkyl-modified carboxyvinyl polymer, which is an essential component of the cosmetic of the present invention, can be obtained by esterifying some or all of the carboxyl groups of the constituent monomer with an alkyl group. The alkyl group preferably has 10 to 30 carbon atoms, and the carbon chain of the alkyl group may be a single species or may have a distribution. Such an alkyl-modified carboxyvinyl polymer already exists on the market as a cosmetic raw material, and can be purchased and used. As such a commercial product, for example, “Carbopol 1382” (acrylic acid), which is a carboxyvinyl polymer having an alkyl group having 10 to 30 carbon atoms and having a crosslinked structure, is sold by Goodrich. (C10-30) alkyl / methacrylic acid crosslinked (crosslinked) copolymer), “Pemlen TR-1” (stearyl acrylate / methacrylic acid crosslinked (crosslinked) copolymer), etc. Paul 1382 "(acrylic acid (C10~30) alkyl methacrylate cross-linked (crosslinked) copolymer) and the like are not preferred. As the salts thereof, sodium salts, alkali metal salts, calcium, alkaline earth metal salts such as magnesium and potassium salts, ammonium salts, triethanolamine salts, organic amine salts such as triethylamine salt, lysine salt, arginine Preferred examples include basic amino acid salts such as salts. These can use only a seed | species, and can also contain it in combination of 2 or more type. Such alkyl-modified carboxyvinyl polymer and / or a salt thereof, is at the shaving cosmetics of the present invention, a transparent, has an action of forming a beautiful gel. In order to form such a gel, the carboxyvinyl polymer which may be alkyl-modified may be 0.1 to 1% by mass, more preferably 0.2 to 0.2%, based on the total amount of the shaving cosmetic. It is preferable to contain 0.8 mass%.

(2) shaving cosmetics polyquaternium compound present invention is an essential component of the shaving cosmetics of the present invention is characterized by containing polyquaternium compounds. Here, polyquaternium is a general term for polymer compounds having a quaternary amino group as a side chain, and is a polymer compound having such a structure, and is recognized as a cosmetic raw material by the FDA. The thing which numbered polyquaternium with the number is registered as an in-key name. At present, polyquaternium 1 to 56 are known. The polyquaterniums that can be used in the shaving cosmetics of the present invention can be used without particular limitation as long as they are registered as in-key names, and any of these polyquaterniums 1 to 56 can be used. Among them, polyquaternium 7 (acrylamide diallyldimethylammonium chloride copolymer), polyquaternium 10 (2-hydroxyethyl-2- [2-hydroxy-3- (trimethylammonio) propoxy] ethyl-2-hydroxy-3- (triethyl) Ammonio) propyl ether cellulose chloride), polyquaternium 33 (acrylamide (2-acryloxyethyl) trimethylammonium chloride copolymer), polyquaternium 37 (choline methacrylate polymer), poly Preferred examples include quaternium 39 (acrylamide / acrylic acid / diallyldimethylammonium chloride copolymer), polyquaternium 51 (butyl methacrylate / ethyloxyphosphorylcholine copolymer). Among these, a form containing polyquaternium 39 is particularly preferable. Moreover, among these, there are those having a crosslinked structure and those having no crosslinked structure, but it is preferable to use those having a crosslinked structure. Polyquaterniums having such a crosslinked structure are already commercially available as cosmetic raw materials, and can be purchased and used. For example, preferable examples of such commercially available products are polyquaternium 7, such as “Marquat 550” (manufactured by Calgon Corporation) or “Salcare Super SC7” (manufactured by Ciba Specialties), polyquaternium 33, “Salcare SC93” ( manufactured by Ciba Specialties), “Polyquaternium 37”, “Sintalen CR” (manufactured by Wako Pure Chemical Industries, Ltd.), Polyquaternium 39 “Marcote 3330 Plus” or “Marcote 3331” (all Suitable examples include “Revision” (produced by Calgon Corporation) and “Polyquaternium 51” (produced by Nippon Oil & Fats Co., Ltd.). Such an ingredient has an effect of preventing a significant increase in the coefficient of friction from the volatilization of the aqueous component during use of the shaving cosmetic . These can contain only the seed | species, and can also contain it in combination of 2 or more type. The preferred content of such polyquaterniums in the shaving cosmetics of the present invention is 0.01 to 2% by mass, more preferably 0.05 to 1% by mass in a total amount in a form not containing a solvent. . This is because if the amount is too small, the friction coefficient reduction maintaining effect may not be achieved, and if the amount is too large, the stability of the gel may be impaired.

(3) shaving cosmetics of shaving cosmetics <br/> invention of the present invention contains the essential components, a gel-like, preferably transparent, exhibited a gel-like beautiful appearance, in use, applied It has a characteristic that an abrupt increase in friction coefficient during operation is suppressed. As the gel, an emulsification system can be used, but it is preferable to have a transparent shape. This is because when the emulsification system is used, the friction coefficient may change remarkably due to phase changes such as phase inversion during use, and such changes may impair the feeling of use. Shaving cosmetic of the present invention, have the property of sustained in the friction coefficient reducing effect during coating, such properties are Ru useful der the creation of preferred feeling.

In shaving cosmetics of the present invention, preferably contains a component capable of improving the salt tolerance of gel to make the said alkyl-modified carboxyvinyl polymer and / or a salt thereof. As such a component, for example, polyglycerol and / or an ester thereof can be preferably exemplified. The polyglycerin referred to in the present invention is a condensate of glycerin having at least one ether bond. Specifically, diglycerin, triglycerin, tetraglycerin, pentaglycerin, hexaglycerin, heptaglycerin, octane. Particularly preferred examples include glycerin, nonaglycerin, decaglycerin, undecaglycerin, dodecaglycerin, tridecaglycerin, and tetradecaglycerin. Further, as the ester, a fatty acid ester having 12 to 24 carbon atoms can be preferably exemplified, and those having a number of free hydroxyl groups at least three times the number of esterified hydroxyl groups can be particularly suitably exemplified. Specifically, decaglycerin monofatty acid ester, decaglycerin difatty acid ester, decaglycerin trifatty acid ester, octaglycerin monofatty acid ester, octaglycerin difatty acid ester, pentaglycerin monofatty acid ester and the like are preferable examples, and the fatty acid residue Preferred examples of the group include stearic acid residues, palmitic acid residues, myristic acid residues, lauric acid residues and the like. In the shaving cosmetics of the present invention, a preferred form is a form containing both polyglycerin and an ester thereof, and the amount ratio thereof is polyglycerin: polyglycerin ester = 2: 1 to 4: 1 can be preferably exemplified. As such non-esterified polyglycerol, diglycerol is preferable, deglycerin monofatty acid ester is preferable as esterified glycerol, and myristic acid residue is particularly preferable as the fatty acid residue of the decaglycerol monofatty acid ester. preferable. In the shaving cosmetics of the present invention, the preferred content of these polyglycerols or esters thereof is 5 to 10% by mass in total, more preferably 6 to 9% by mass.

In the shaving cosmetic of the present invention, in addition to the essential components described above, any component that is usually used in cosmetics can be contained. Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hydrogenated coconut oil Oils such as hardened oil, mole, hardened castor oil, beeswax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum , Hydrocarbons such as microcrystalline wax, higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostearyl Alcohol, behenyl alcohol, octyldodecanol, higher alcohol such as myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, methylphenylpoly Loxane, linear polysiloxane such as diphenylpolysiloxane, cyclic polysiloxane such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oil such as modified polysiloxane such as fluorine-modified polysiloxane, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfate, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide, imidazoline-based amphoteric surfactants (2-cocoyl-2-imida Zolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine, sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid ester Tells (POE-glycerol monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonylphenyl) Ethers, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), Nonionic surfactants such as sucrose fatty acid ester and alkyl glucoside, polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene Polyols such as recall, dipropylene glycol, isoprene glycol, 1,2-pentanediol, 2,4-hexylene glycol, 1,2-hexanediol, 1,2-octanediol, sodium pyrrolidonecarboxylate, lactic acid , Moisturizing ingredients such as sodium lactate, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin sulfate, dermatan sulfate , Glycogen, heparan sulfate, hyaluronic acid, sodium hyaluronate, gum tragacanth, keratan sulfate, chondroitin, mucoitin sulfate, hydroxyethyl Gua gum, carboxymethyl guar gum, dextran, keratosulfuric acid, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethylchitin, agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, sodium polyacrylate, polyethylene glycol, Thickeners such as bentonite, surface may be treated, powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, surface May be treated, bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide inorganic pigments, surface may be treated, titanium mica, fish phosphorus foil Pearl agents such as bismuth oxychloride Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213 which may be raked Organic powders such as yellow 204, yellow 203, blue 1, green 201, purple 201, red 204, polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer, etc. , Paraaminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers, 2- (2'-hydroxy- UV absorbers such as 5′-t-octylphenyl) benzotriazole and 4-methoxy-4′-t-butyldibenzoylmethane, Lower alcohols such as norol, isopropanol, vitamin A or its derivatives, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or its derivatives, vitamin B such as vitamin B12, vitamin B15 or its derivatives, Preferred examples include vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone and the like. The shaving cosmetic of the present invention can be produced by treating such essential components and optional components according to a conventional method.

The shaving cosmetic of the present invention was produced according to the formulation shown below. That is, (i), (b), and (c) are weighed, and under stirring, (a) is gradually added to (b) , and further (c) is added while stirring is continued. The gel-like shaving cosmetic 1 of the present invention was obtained by summing. Comparative Example 1 in which the polyquaternium 37 was replaced with sodium chondroitin sulfate and Comparative Example 2 in which “Carbopol 1382” was replaced with carrageenan were also prepared. Using these, the salt resistance and the shaving effect were examined. For salt resistance, 1 g of shaving cosmetic is discharged onto a filter paper impregnated with 0.9% sodium chloride aqueous solution, photographed from the side immediately after discharge and 10 minutes after discharge, and discharged from the filter paper at and after discharge. The distance to the top of the head was measured. Further, using 5 persons per group of panelists, the heels that had been stretched for 3 days were shaved after the application of these shaving cosmetics, and the remaining shaving ratio was calculated from photographs of the shaved part before and after shaving. Further, 0.1 g was placed on a plastic plate and extended with a 40 mil doctor blade, and the extended length of the shaving cosmetic was determined. These results are shown in Table 1. From this, it can be seen that the gel-like shaving cosmetic of the present invention is excellent in salt resistance, and does not have an abrupt increase in the coefficient of friction even in the application operation, so that it smoothly spreads, and therefore, there is little leftover.

Claims (10)

1) alkyl modified carboxyvinyl polymer, 2), characterized in that it contains a polyquaternium compound, gel shaving cosmetics. The alkyl-modified carboxyvinyl polymer, characterized in that acrylic acid (C10-30) alkyl methacrylate cross-linked (crosslinked) copolymer, gel shaving cosmetic composition according to claim 1. The content of the alkyl-modified carboxyvinyl polymer, characterized in that from 0.1 to 1 wt%, gel shaving cosmetic according to claim 1 or 2. The gel-like shaving cosmetic according to any one of claims 1 to 3, wherein the polyquaternium is a polyquaternium having a crosslinked structure. The gel-like shaving cosmetic according to claim 4 , wherein the polyquaternium having the crosslinked structure is polyquaternium 39. The gel-like shaving cosmetic according to any one of claims 1 to 5, wherein the content of the polyquaternium is 0.01 to 2% by mass. The gel-like shaving cosmetic according to any one of claims 1 to 6, further comprising polyglycerol and / or a fatty acid ester thereof. The gel-like shaving cosmetic according to claim 7 , comprising diglycerin and decaglycerin fatty acid ester as the polyglycerin and / or fatty acid ester thereof. Before the mass ratio of the article glycerin and decaglycerol fatty acid ester, 2: 1 to 4: characterized in that it is a 1, gel shaving cosmetic according to claim 8. The gel-like shaving cosmetic according to any one of claims 7 to 9, wherein the content of the polyglycerin and the fatty acid ester thereof is 5 to 10% by mass.