JP2000034205A - Cosmetic raw material, cosmetic, and production of cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic raw material which can give a fine touch to fingers or skins, spread and feeling on use to cosmetics by using an organic silicon polymer bearing a siloxane linkage and a silalkylene linkage. SOLUTION: This cosmetic raw material is obtained by using an organic silicon polymer bearing a siloxane linkage and a silalkyl linkage. It is favorable that the above polymer has a viscosity of 10-109 mPa.s at 25 deg.C and a weight average molecular weight of 1,000-10,000,000 based on the standard polystyrene. The above polymer is obtained by, for example, addition-polymerizing a diorganopolysiloxane bearing silicon atom bound hydrogen atoms only in both terminals of the molecular chain with a diorganopolysiloxane bearing silicon atom bound alkenyl groups only in both terminals of the molecular chain in the presence of a hydrosilanization reaction catalyst. Further, the above polymer is preferably included in cosmetics in a proportion of 01-99.9 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw material for cosmetics, a cosmetic, and a method for producing the cosmetic. More specifically, the present invention relates to a cosmetic raw material capable of imparting good touch and elongation to a finger or skin to a cosmetic. , Good finger and skin feel, stretch,
The present invention relates to cosmetics having a feeling of use and a method for producing such cosmetics.

[0002]

2. Description of the Related Art The use of silicone oil having a siloxane bond in the main chain as a cosmetic raw material is disclosed in Japanese Patent Application Laid-Open Nos. 63-183517 and 1-268609.
And Japanese Patent Application Laid-Open No. 4-139110. On the other hand, as disclosed in JP-A-1-217040 and JP-A-7-82379, an organosilicon polymer having a siloxane bond and a silalkylene bond has a silicon-bonded hydrogen atom only at both ends of a molecular chain. Prepared by the addition polymerization of a diorganopolysiloxane having a vinyl group and a diolefin having a vinyl group only at both ends of the molecular chain or a diorganopolysiloxane having a silicon-bonded alkenyl group only at both ends of the molecular chain using a catalyst for a hydrosilylation reaction. However, it has not been known that such an organosilicon polymer is used as a cosmetic raw material.

[0003]

SUMMARY OF THE INVENTION The inventors of the present invention have conducted intensive studies on cosmetic raw materials capable of imparting good feel to fingers and skin, elongation, and a feeling of use to cosmetics.
When an organosilicon polymer having a siloxane bond and a silalkylene bond is used as a cosmetic raw material, the present invention has been found to be capable of imparting good touch to fingers and skin, elongation, and a feeling of use to the obtained cosmetic. Reached. That is, an object of the present invention is to provide cosmetics with a good feel to fingers and skin, elongation, and cosmetic raw materials capable of imparting a feeling of use,
Cosmetics with good finger and skin feel, elongation, and feel
Another object of the present invention is to provide a method for efficiently producing such cosmetics.

[0004]

The cosmetic raw material according to claims 1 to 8 of the present application is characterized by comprising an organosilicon polymer having a siloxane bond and a silalkylene bond, or an aqueous emulsion of the organosilicon polymer. I do. The cosmetic according to claim 9 of the present application is characterized by containing a cosmetic raw material comprising an organosilicon polymer having a siloxane bond and a silalkylene bond, or an aqueous emulsion of the organosilicon polymer. Further, the method for producing a cosmetic according to claim 10 of the present application is a method of mixing an organic silicon polymer having a siloxane bond and a silalkylene bond or a cosmetic raw material composed of an aqueous emulsion of the organic silicon polymer with other cosmetic raw materials. It is characterized by.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, cosmetic raw materials according to claims 1 to 8 of the present application will be described in detail. This cosmetic ingredient is
It is characterized by comprising an organosilicon polymer having a siloxane bond and a silalkylene bond, or an aqueous emulsion of the organosilicon polymer. The organosilicon polymer exhibits properties such as liquid, gum, or paste at room temperature, and its molecular structure may be partially branched, but is substantially linear. The viscosity of the organosilicon polymer is not limited, but the viscosity at 25 ° C. is preferably within the range of 10 to 1,000,000 mPa · s, and particularly preferably 10 to 500,000,000 mPa · s.
It is preferably within the range of s. The molecular weight of the organosilicon polymer is not limited, but the weight average molecular weight in terms of standard polystyrene is preferably in the range of 1,000 to 1,000,000, and more preferably in the range of 10,000 to 1,000,000. It is preferable that the number is 100,000 to 100,000 in particular.
It is preferably within the range of 10,000.

As a method for preparing such an organosilicon polymer, for example, as disclosed in JP-A-1-217040, a diorganopolysiloxane having silicon-bonded hydrogen atoms only at both molecular chain terminals is disclosed. And addition polymerization of a diolefin having a vinyl group only at both ends of the molecular chain with a catalyst for a hydrosilylation reaction, and, as disclosed in JP-A-7-82379, a silicon atom bond only at both ends of the molecular chain. A method of addition-polymerizing a diorganopolysiloxane having a hydrogen atom and a diorganopolysiloxane having a silicon-bonded alkenyl group only at both molecular chain terminals with a hydrosilylation reaction catalyst,
In particular, as disclosed in JP-A-7-82379, a diorganopolysiloxane having silicon-bonded hydrogen atoms only at both molecular chain terminals and a diorganopolysiloxane having silicon-bonded alkenyl groups only at both molecular chain terminals. It is preferable to use a method in which siloxane is subjected to addition polymerization using a hydrosilylation reaction catalyst.

In the above method, the group other than the hydrogen atom bonded to the silicon atom in the diorganopolysiloxane having a silicon-bonded hydrogen atom only at both ends of the molecular chain includes a methyl group, an ethyl group, a propyl group and a butyl group. Groups, pentyl groups, hexyl groups, heptyl groups, octyl groups, nonyl groups, alkyl groups such as decyl groups; cycloalkyl groups such as cyclopentyl groups and cyclohexyl groups; aryl groups such as phenyl groups, tolyl groups and xylyl groups; benzyl groups Aralkyl groups such as phenethyl group; 3-chloropropyl group;
Examples thereof include a halogenated alkyl group such as a 3,3-trifluoropropyl group, and a methyl group and a phenyl group are particularly preferable. Although the molecular structure of the diorganopolysiloxane is substantially linear, a part of the molecular chain may be slightly branched to such an extent that the resulting organosilicon polymer does not gel. Although the viscosity of this diorganopolysiloxane is not limited, it is 25 ° C.
Is preferably 100,000 mPa · s or less, particularly preferably 1,000 mPa · s or less. Examples of such a diorganopolysiloxane include a dimethylpolysiloxane having a dimethylhydrogensiloxy group at both ends of a molecular chain, and a part of the methyl group of the dimethylpolysiloxane is an ethyl group, a phenyl group, 3,3,3-trifluoropropyl. Examples thereof include diorganopolysiloxanes substituted with groups.

In the above method, the alkenyl group in the diorganosiloxane having a silicon-bonded alkenyl group only at both ends of the molecular chain includes a vinyl group, an allyl group, a butenyl group, a pentenyl group, a hexenyl group and a heptenyl group. Octenyl group, nonenyl group, and decenyl group, and a vinyl group and an allyl group are particularly preferable. Examples of the group other than the alkenyl group bonded to the silicon atom in the diorganopolysiloxane include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, and a decyl group. An alkyl group such as a group; a cycloalkyl group such as a cyclopentyl group and a cyclohexyl group; an aryl group such as a phenyl group, a tolyl group and a xylyl group; an aralkyl group such as a benzyl group and a phenethyl group; Examples thereof include a halogenated alkyl group such as a 3-trifluoropropyl group, and a methyl group and a phenyl group are particularly preferable. Although the molecular structure of the diorganopolysiloxane is substantially linear, a part of the molecular chain may be slightly branched to such an extent that the resulting organosilicon polymer does not gel.
The viscosity of the diorganopolysiloxane is not limited, but the viscosity at 25 ° C. is preferably 100,000 mPa · s or less, particularly preferably 10,000 mPa · s or less, because of excellent handling workability. . Examples of such a diorganopolysiloxane include dimethylpolysiloxane having a dimethylvinylsiloxy group at both ends of a molecular chain, and a part of the methyl group of the dimethylpolysiloxane is an ethyl group, a phenyl group, a 3,3,3-trifluoropropyl group. And the like. Examples thereof include diorganopolysiloxanes substituted with, for example, diorganopolysiloxanes in which the vinyl group of these diorganopolysiloxanes is substituted with an allyl group, a hexenyl group, or the like.

In the above method, in addition to a diorganopolysiloxane having a silicon-bonded hydrogen atom only at both ends of the molecular chain and a diorganopolysiloxane having a silicon-bonded alkenyl group only at both ends of the molecular chain, A diorganopolysiloxane having a silicon-bonded hydrogen atom or a silicon-bonded alkenyl group only at one end of the chain is added to adjust the molecular weight of the resulting organosilicon heavy, or a silicon-bonded hydrogen atom or By adding an organopolysiloxane having a silicon-bonded alkenyl group, a branched chain can be formed in the molecular structure of the resulting organosilicon polymer to such an extent that the resulting organosilicon polymer does not gel. In addition, a diorganopolysiloxane having neither a silicon-bonded hydrogen atom nor a silicon-bonded alkenyl group in the molecular chain can be added. The amount of these components added is such that the resulting organosilicon polymer is crosslinked and no longer insoluble in organic solvents.
It is necessary that the amount does not cause (gelation). Examples of the alkenyl group in the alkenyl group-containing diorganosiloxane include the same groups as described above, and particularly preferably a vinyl group and an allyl group. Examples of groups other than hydrogen atoms or alkenyl groups bonded to silicon atoms in these diorganopolysiloxanes include the same alkyl groups, cycloalkyl groups, aryl groups, aralkyl groups, and halogenated alkyl groups as described above. Particularly, a methyl group and a phenyl group are preferable. Although the molecular structure of these diorganopolysiloxanes is substantially linear, some of the molecular chains may be branched to such an extent that the resulting organosilicon polymer does not gel. Although the viscosity of these diorganopolysiloxanes is not limited, the viscosity at 25 ° C. is 1 due to the good workability.
It is preferably not more than 00,000 mPa · s, in particular,
It is preferably 1,000 mPa · s or less. Examples of such a diorganopolysiloxane include a dimethylsiloxane / methylhydrogensiloxane copolymer having trimethylsiloxy groups at both ends of molecular chains, a dimethylsiloxane / methylhydrogensiloxane copolymer having both ends of dimethylhydrogensiloxy groups at both molecular chains, Some of the methyl groups in these dimethylsiloxane / methylhydrogensiloxane copolymers are replaced with ethyl groups, phenyl groups,
Diorganopolysiloxane substituted with a 3,3-trifluoropropyl group or the like; a dimethylsiloxane / methylvinylsiloxane copolymer with a trimethylsiloxy group at both ends of the molecular chain, a dimethylsiloxane / methylvinylsiloxane with a dimethylvinylsiloxy group at both ends of the molecular chain Copolymers, a part of the methyl groups of these dimethylsiloxane / methylvinylsiloxane copolymers are converted to ethyl groups, phenyl groups,
Diorganopolysiloxane substituted with a 3,3-trifluoropropyl group; dimethylpolysiloxane in which one end of a molecular chain is blocked with a dimethylhydrogensiloxy group and the other molecular chain end is blocked with a trimethylsiloxy group, a molecular chain fragment A dimethylpolysiloxane whose terminal is blocked with a dimethylvinylsiloxy group and the other molecular chain terminal is blocked with a trimethylsiloxy group, and some of the methyl groups of these dimethylpolysiloxanes are ethyl groups, phenyl groups, 3,3,
Examples thereof include diorganopolysiloxanes substituted with 3-trifluoropropyl groups and the like, and diorganopolysiloxanes in which the vinyl groups of these dimethylpolysiloxanes are substituted with allyl groups and hexenyl groups.

In the above method, the amount of the diorganopolysiloxane having a silicon-bonded hydrogen atom relative to the diorganopolysiloxane having a silicon-bonded alkenyl group is not limited. It is preferable that the latter diorganopolysiloxane is in the range of 0.5 to 1.5 mol. In particular, in order to prepare a high molecular weight organosilicon polymer, the number of moles is preferably about 1.0 mol. It is preferred that

In the above method, the hydrosilylation reaction catalyst is a catalyst for accelerating the addition polymerization to prepare an organosilicon polymer having a siloxane bond and a silalkylene bond. Examples of the catalyst for the hydrosilylation reaction include a platinum-based catalyst, a rhodium-based catalyst, and a palladium-based catalyst, and a platinum-based catalyst is preferable because the addition polymerization can be remarkably promoted. Examples of the platinum-based catalyst include fine platinum particles, fine silica powder carrying platinum, activated carbon carrying platinum, chloroplatinic acid, an alcohol solution of chloroplatinic acid, a platinum-alkenylsiloxane complex, a platinum-olefin complex,
A platinum-carbonyl complex is exemplified, and a platinum-alkenylsiloxane complex is particularly preferable. Examples of the alkenyl siloxane include 1,3-divinyl-1,1,1
3,3-tetramethyldisiloxane, 1,3,5,7-
Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane, alkenylsiloxanes in which some of the methyl groups of these alkenylsiloxanes are substituted with ethyl groups, phenyl groups, etc., and vinyl groups of these alkenylsiloxanes which are allyl groups Alkenyl siloxane substituted with a hexynyl group or the like, and the stability of this platinum-alkenyl siloxane complex is good.
It is preferably divinyl-1,1,3,3-toteramethyldisiloxane. Further, since the stability of the platinum-alkenylsiloxane complex can be improved, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane, 1,3-diallyl-1,1 ,
3,3-tetramethyldisiloxane, 1,3-divinyl-1,3-dimethyl-1,3-diphenyldisiloxane, 1,3-divinyl-1,1,3,3-tetraphenyldisiloxane, 1, 3,5,7-tetramethyl-1,
It is preferable to add an alkenylsiloxane such as 3,5,7-tetravinylcyclotetrasiloxane or an organosiloxane oligomer such as a dimethylsiloxane oligomer, and particularly preferable to add an alkenylsiloxane.

In the above method, the amount of the catalyst for the hydrosilylation reaction is not limited. However, since the addition polymerization can be efficiently promoted, the amount of the catalyst is preferably based on the total weight of the diorganopolysiloxane. The amount of platinum metal in the catalyst is preferably in the range of 0.1 to 1,000 ppm, and more preferably 0.1 to 1,000 ppm.
The amount is preferably in the range of 500 ppm, particularly preferably in the range of 1 to 50 ppm.

In the above method, the diorganopolysiloxane having a silicon-bonded hydrogen atom only at both ends of the molecular chain, the diorganopolysiloxane having a silicon-bonded alkenyl group only at both ends of the molecular chain, and optionally other To the diorganopolysiloxane, a hydrosilylation reaction catalyst is added, and after uniformly mixing the mixture, the mixture is allowed to stand as it is, or may be heated and stirred at 100 ° C. or lower to promote addition polymerization. It is preferable to heat and stir to 70 ° C. or less. However, in such a method, there is a problem that the obtained organosilicon polymer is easily gelled,
Preferably, a method in which the above addition polymerization is performed in water is preferred. That is, a diorganopolysiloxane having a silicon-bonded hydrogen atom only at both ends of the molecular chain, a diorganopolysiloxane having a silicon-bonded alkenyl group only at both ends of the molecular chain, and other diorganopolysiloxanes as necessary are added to water. This is a method in which an addition polymerization is carried out by a hydrosilylation reaction catalyst in a state of being emulsified into an emulsion.

As a method of emulsifying these diorganopolysiloxanes in water, for example, a mixture of these diorganopolysiloxanes is mixed with a homomixer, a paddle mixer, a Henschel mixer, a homodisper, a colloid mixer, a propeller stirrer, a homodisper, Homogenizer, in-line continuous emulsifier, ultrasonic emulsifier, a method of dispersing in water by a known stirring and mixing device such as a vacuum kneading machine, and each diorganopolysiloxane by a known stirring and mixing device in water A method of mixing the emulsion dispersed in the above is exemplified.

In order to emulsify these diorganopolysiloxanes in water and to improve the stability of the obtained emulsion, it is preferable to use a surfactant. As this surfactant, hexylbenzenesulfonic acid,
Anionic surfactants such as octylbenzenesulfonic acid, decylbenzenesulfonic acid, dodecylbenzenesulfonic acid, cetylbenzenesulfonic acid, myristylbenzenesulfonic acid and its sodium salt; octyltrimethylammonium hydroxide, dodecyltrimethylammonium hydroxide, hexadecyl Cationic surfactants such as trimethylammonium hydroxide, octyldimethylbenzylammonium hydroxide, decyldimethylbenzylammonium hydroxide, dioctadecyldimethylammonium hydroxide, tallow trimethylammonium hydroxide and coconut oil trimethylammonium hydroxide; polyoxyalkylene alkyl Ether, polyoxyalkylene alkylphenol, polyoxyalkylene Alkyl ester, polyoxyalkylene sorbitan ester, polyethylene glycol, polypropylene glycol, ethylene oxide adduct of diethylene glycol trimethylnonanol, polyester nonionic surfactant, and a mixture of two or more of these surfactants. Nonionic surfactants are preferred because they have little influence on the addition polymerization.

Although the amount of the surfactant is not limited, it is preferably in the range of 0.01 to 50 parts by weight, more preferably 0.1 to 50 parts by weight, based on 100 parts by weight of the above-mentioned diorganopolysiloxane. It is preferable that the amount is in the range of 20 to 20 parts by weight. The amount of water to be added is not limited, but is preferably in the range of 10 to 200 parts by weight based on 100 parts by weight of the above-mentioned diorganopolysiloxane.

In the above method, it is preferable to use, as the hydrosilylation reaction catalyst, an emulsion obtained by emulsifying a liquid catalyst containing a platinum-alkenylsiloxane complex as a main component in water. In this emulsion, the volume average particle size of the liquid catalyst dispersed in the form of liquid particles, that is, the average particle size in the volume particle size distribution is 1%.
μm or less, more preferably 0.8 μm or less, and particularly preferably 0.5 μm or less. Furthermore, in the volume particle size distribution of the catalyst dispersed in liquid particles in water, the ratio of the catalyst having the particle size of 1 μm or more is preferably 40% by weight or more.

As a method for preparing an emulsion obtained by emulsifying a liquid catalyst containing a platinum-alkenylsiloxane complex as a main component in water, there is known a method for preparing a liquid catalyst containing a platinum-alkenylsiloxane complex as a main component by a known stirring method.・
A method of dispersing in water by a mixing device is exemplified. In this case, it is preferable to use the same surfactant as described above in order to improve the stability of the obtained emulsion. Also,
A method in which a liquid catalyst containing the platinum-alkenylsiloxane complex as a main component dispersed in a surfactant is prepared beforehand, added to the diorganopolysiloxane emulsion, and dispersed in water is also exemplified. Is done. Examples of the surfactant include the same ones as described above. In particular, a nonionic surfactant is preferable since it has little effect on the hydrosilylation reaction. The amount of the surfactant added is 0.0 with respect to 100 parts by weight of the liquid catalyst containing the platinum-alkenylsiloxane complex as a main component.
It is preferably in the range of 1 to 1000 parts by weight.

In the above method, the amount of the liquid catalyst emulsion to be added is not limited. However, since the addition polymerization can be efficiently promoted, the amount of the emulsion is based on the total weight of the diorganopolysiloxane. The amount of platinum metal in the emulsion may be within the range of 0.1 to 1,000 ppm, and more preferably 0.1 to 1,000 ppm.
The amount is preferably in the range of 500 ppm, particularly preferably in the range of 1 to 50 ppm.

Further, according to the above method, an emulsion of a diorganopolysiloxane having a silicon-bonded hydrogen atom only at both ends of the molecular chain and a diorganopolysiloxane having a silicon-bonded alkenyl group only at both ends of the molecular chain is treated with hydrosilyl. After the addition of the catalyst for the polymerization reaction and uniform mixing, the mixture may be allowed to stand as it is, or may be heated at 100 ° C. or lower to promote the addition polymerization. It is preferable to heat below.

The aqueous emulsion of the organosilicon polymer thus prepared may be used as a raw material for cosmetics as it is, or water may be removed from this aqueous emulsion to take out the organosilicon polymer, which may be used as a raw material for cosmetics. Good. Examples of a method for removing water from the aqueous emulsion include means such as air drying, hot air drying, vacuum drying, and heat drying. When the cosmetic raw material is an aqueous emulsion of the above-mentioned organosilicon polymer, the average particle size of the emulsion is preferably in the range of 0.001 to 100 μm, and particularly, when the average particle size is 0.02 to 50 μm. It is preferable that it is within the range. Further, the content of the organosilicon polymer in this aqueous emulsion is preferably in the range of 1 to 95% by weight, more preferably in the range of 10 to 85% by weight. 20-75
Preferably it is in the range of weight%.

Next, the cosmetic according to claim 9 of the present application will be described in detail. This cosmetic is the organosilicon polymer described above,
Alternatively, it is characterized by containing an aqueous emulsion of the organosilicon polymer. The types of cosmetics include washing cosmetics such as soaps, body shampoos, face creams, and the like, and basic cosmetics such as lotions, creams / emulsions, and packs;
Make-up cosmetics such as lipstick, blusher, eye shadow, eyeliner, mascara, etc., and make-up cosmetics such as manicure; shampoo, hair rinse, hair styling, hair restorer, hair restorer, hair dye, etc. Hair cosmetics; aromatic cosmetics such as perfume and o-de-colon; toothpastes; bath agents; special cosmetics such as depilatory agents, shaving lotions, antiperspirants / deodorants, and sunscreens. In addition, as the dosage form of this cosmetic, aqueous liquid, oily liquid, emulsion, cream, foam,
Semi-solid, solid, and powder forms are exemplified. In addition, this cosmetic can be used by spraying.

In this cosmetic, other optional cosmetic ingredients include, for example, avocado oil, almond oil, olive oil, cocoa butter, sesame oil, wheat germ oil, safflower oil, shea butter, turtle oil, camellia oil, persic oil And oils such as castor oil, grape oil, macadamia nut oil, mink oil, egg yolk oil, mokurou, coconut oil, rosehip oil and hydrogenated oil; orange roughy oil, carnauba wax, candelilla wax, whale wax, jojoba oil, montan wax, beeswax ,
Waxes such as lanolin; liquid paraffin, vaseline, paraffin, ceresin, microcrystalline wax, hydrocarbons such as squalane; lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, behenic acid,
Higher fatty acids such as undecylenic acid, oxystearic acid, linoleic acid, lanolinic acid and synthetic fatty acids; ethyl alcohol, isopropyl alcohol, lauryl alcohol, cetyl alcohol, cetostearyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin Alcohols such as alcohol, hexyldecanol, octyldodecanol, and isostearyl alcohol; sterols such as cholesterol, dihydrocholesterol, and phytosterol; ethyl linoleate, isopropyl myristate, isopropyl lanolin fatty acid, hexyl laurate, myristyl myristate, cetyl myristate, and myristine Octyldodecyl oleate, decyl oleate, octyldodecyl oleate Dimethyl octanoic acid hexyl decyl, isooctane cetyl, cetyl palmitate,
Fatty acid esters such as glycerin trimyristate, glycerin tri (capryl / caprate), propylene glycol dioleate, glycerin triisostearate, glycerin triisooctanoate, cetyl lactate, myristyl lactate, diisostearyl malate; glycerin,
Propylene glycol, 1,3-butylene glycol,
Humectants such as polyethylene glycol, sodium d, l-pyrrolidonecarboxylate, sodium lactate, sorbitol, sodium hyaluronate; higher fatty acid soaps, higher alcohol sulfates, N-acyl glutamates,
Anionic surfactants such as phosphate ester salts, cationic surfactants, betaine type, amino acid type, imidazoline type,
Surfactants such as amphoteric surfactants such as lecithin, nonionic surfactants such as polyhydric alcohol ester type and ethylene oxide condensation type; colored pigments such as iron oxide; white pigments such as zinc oxide, titanium oxide and zirconium oxide , Mica, talc,
Pigments such as extenders such as sericite; silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, octamethyltetracyclosiloxane, decamethylcyclopentasiloxane, polyether-modified silicone oil and amino-modified silicone oil; purified water; carrageenan , Alginic acid, gum arabic, tragacanth, pectin, starch, xanthan gum, polyvinyl alcohol, polyvinyl pyrrolidone, sodium polyacrylate,
Thickeners such as polyethylene glycol, and further, ultraviolet absorbers, antibacterial agents, anti-inflammatory agents, antiperspirants, preservatives, fragrances, antioxidants, pH regulators, and propellants can be blended.

Further, silicone powder such as silicone resin powder and silicone rubber powder can be blended with this cosmetic as other cosmetic raw materials. This silicone powder may be used as an aqueous suspension. Methods for preparing such silicone powders are well-known, for example, a method of pulverizing a cured silicone product, a method of dispersing and curing a curable silicone composition in a spray form, and a method of dispersing a curable silicone composition in water. A method in which the curable silicone composition is dispersed in water is preferable. A method in which the curable silicone composition is dispersed in water is preferred because of its excellent stability when viewed as an aqueous suspension of silicone powder. The amount of the silicone powder or the aqueous suspension of the silicone powder is preferably such that the silicone powder is contained in the cosmetic in the range of 0.1 to 99% by weight, particularly 0.1 to 85% by weight. The amount is preferably in the range of weight%.

In this cosmetic, the amount of the cosmetic raw material comprising the above-mentioned organosilicon compound or the aqueous emulsion of this organosilicon polymer is 0.1 to 99.9% by weight of the cosmetic. The amount is preferably in the range, particularly 0.5 to 99% by weight.
It is preferable that the amount falls within the range described above. This is because if the amount of the organosilicon polymer exceeds the upper limit of the above range, the effect as a cosmetic tends to be lost, and if it is less than the lower limit of this range, the above This is because it tends to be difficult to improve the feeling of use of cosmetics or the like by blending the organosilicon polymer.

Next, a method for producing a cosmetic according to claim 10 of the present application will be described in detail. The manufacturing method of this cosmetic is
It is characterized in that a cosmetic raw material comprising the above-mentioned organosilicon polymer or an aqueous emulsion of this organosilicon polymer is mixed with other cosmetic raw materials. Examples of other cosmetic raw materials include the same as those described above. In the production method of the present invention, the above-mentioned organosilicon polymer, or a cosmetic raw material composed of an aqueous emulsion of this organosilicon polymer and other cosmetic raw materials are, for example, a batch mixer, a continuous mixer, a homomixer, a paddle mixer, a Henschel mixer. The mixing is performed by using a mixer, a homodisper, a colloid mixer, a propeller stirrer, a homogenizer, an in-line continuous emulsifier, an ultrasonic emulsifier, a vacuum kneader, or the like. In particular, as a cosmetic raw material, when using a cosmetic raw material comprising an aqueous emulsion of the above organosilicon polymer, without applying special equipment and high shear,
There is an effect that the organic silicon polymer can be easily mixed with other cosmetic raw materials and the organosilicon polymer can be uniformly dispersed in the cosmetic.

Further, in this method for producing cosmetics, after mixing the cosmetic raw material comprising the aqueous emulsion of the organosilicon polymer and part or all of the other cosmetic raw materials, water is removed, and if necessary, By further blending other cosmetic raw materials, a cosmetic in which the above-mentioned organosilicon polymer is uniformly dispersed can be prepared. In this method, as a method of removing water, reduced pressure, heating,
Alternatively, a method of air drying and a method of contacting with a moisture absorbent are exemplified.

[0028]

EXAMPLES Cosmetic raw materials, cosmetics, and a method for producing cosmetics according to the present invention will be described in detail with reference to Examples. In addition, the viscosity in an Example is a value in 25 degreeC. In addition, the volume particle size distribution of a liquid catalyst containing a platinum-alkenylsiloxane complex emulsified in water as a main component, the average particle size and stability of an aqueous emulsion of an organosilicon polymer, and the viscosity and molecular weight of an organosilicon polymer Was measured as follows. [Volume Particle Size Distribution of Liquid Catalyst Emulsified in Water] In the volume particle size distribution of the liquid catalyst mainly composed of a platinum-alkenylsiloxane complex emulsified in water, the volume average particle size and the particle size are 1 μm or less. The content (% by volume) of the catalyst of
It was determined by a laser scattering type submicron particle analyzer (COULTER N4 type manufactured by Coulter Electronics Co., Ltd.). [Average Particle Size of Aqueous Emulsion of Organosilicon Polymer] The median diameter (cumulative distribution of 50 particles) of an aqueous emulsion of organosilicon polymer measured by a laser diffraction particle size distribution analyzer (LA-500, manufactured by Horiba, Ltd.). %), The average particle size was determined. [Stability of Aqueous Emulsion of Organosilicon Polymer] A 225 ml glass bottle containing an aqueous emulsion of organosilicon polymer
(Depth: 105 mm, diameter: 50 mm), and the mixture was allowed to stand for 1 week at room temperature in a sealed state. Observe the appearance of the aqueous emulsion of the organosilicon polymer after standing, measure the thickness of the aqueous layer separated at the bottom of the bottle, and if this thickness is less than 5 mm, o: This thickness is 5 mm or more and 20 mm When the thickness was less than 20 mm, it was evaluated as x. [Viscosity and molecular weight of the organosilicon polymer] After air-drying the aqueous emulsion of the organosilicon polymer in a fume hood at room temperature for 1 week, it was confirmed that water was removed by weight loss, and the viscosity of the organosilicon polymer was reduced. Digital Vis
It was measured at 25 rpm at 0.5 rpm for 5 minutes using a meter (DV-U-EII type viscometer manufactured by Tokimec). Also, this organosilicon polymer is dissolved in toluene,
The weight average molecular weight of the top peak in terms of standard polystyrene was measured by gel permeation chromatography.

Reference Example 1 A dimethylpolysiloxane having a dimethylvinylsiloxy group at both ends of a molecular chain having a viscosity of 400 mPa · s and 57.1 parts by weight of a dimethylpolysiloxane (vinyl group content = 0.48% by weight) having a viscosity of 130 mPa · s. Dimethyl hydrogensiloxy group-blocked dimethylpolysiloxane at both ends of the chain (content of silicon-bonded hydrogen atoms = 0.025% by weight) 42.9
The mixture was mixed with 4 parts by weight of a 4% by weight aqueous solution of polyoxyethylene nonylphenyl ether (HLB = 13.1).
After emulsification with parts by weight, 20 parts by weight of pure water was added to prepare an emulsion. Next, platinum-1,3-divinyl-1,1,3,3-prepared separately from this emulsion
1,3-divinyl- of tetramethyldisiloxane complex
Aqueous emulsion of liquid catalyst comprising 1,1,3,3-tetramethyldisiloxane solution (volume average particle diameter of liquid catalyst = 0.05 μm, ratio of catalysts of 1 μm or less = 95% by weight, platinum metal concentration = 0. (0.4% by weight) was uniformly mixed in an amount such that the platinum metal was 20 ppm by weight based on the total weight of the diorganopolysiloxane in the emulsion. This emulsion was allowed to stand at room temperature for one day to carry out addition polymerization to prepare an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silethylene bond. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (A).

Reference Example 2 89.1 parts by weight of a dimethylpolysiloxane (vinyl group content = 0.48% by weight) having a dimethylvinylsiloxy group at both ends of a molecular chain having a viscosity of 400 mPa · s and a molecule having a viscosity of 10 mPa · s 10.9 parts by weight of dimethylpolysiloxane blocked with dimethylhydrogensiloxy groups at both ends of the chain (content of silicon-bonded hydrogen atoms = 0.15% by weight) was mixed, and the mixture was mixed with 5% by weight of polyoxyethylene nonylphenyl ether ( HLB = 13.1) After emulsification with 50 parts by weight of an aqueous solution, 50 parts by weight of pure water was added to prepare an emulsion. Next, a platinum-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex of 1,3-divinyl-1,1
Aqueous emulsion of a liquid catalyst comprising a 1,3,3-tetramethyldisiloxane solution (volume average particle size of liquid catalyst =
The ratio of the catalyst having a particle size of 0.20 μm and a particle size of 1 μm or less = 80% by weight, and the concentration of platinum metal = 0.04% by weight) was determined by adding the platinum metal to the total weight of the diorganopolysiloxane in the emulsion. An amount of 20 ppm was uniformly mixed. This emulsion was allowed to stand at room temperature for one day to carry out addition polymerization to prepare an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silethylene bond. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (B).

[Reference Example 3] A dimethylpolysiloxane having a molecular chain having a viscosity of 400 mPa · s at both ends of a dimethylvinylsiloxy group-blocked dimethylpolysiloxane (vinyl group content = 0.48% by weight): 61.7 parts by weight, a molecule having a viscosity of 10 mPa · s Dimethyl hydrogensiloxy group-blocked dimethylpolysiloxane at both ends of the chain (Content of silicon-bonded hydrogen atoms = 0.15% by weight) 7.6 parts by weight, viscosity of 75 mPa · s Trimethylsiloxy group-blocked dimethylsiloxane at both ends of the chain Methyl hydrogen siloxane copolymer (content of silicon-bonded hydrogen atoms = 0.
0,53% by weight) and 30 parts by weight of a dimethylpolysiloxane endblocked by trimethylsiloxy groups at both molecular chains having a viscosity of 10 mPa · s and mixed with 3% by weight of polyoxyethylene nonyl phenyl ether (HLB = 13). .1)
After emulsification with 50 parts by weight of an aqueous solution, 50 parts by weight of pure water was added to prepare an emulsion. Next, platinum-1,3-divinyl-1,
1,3- of 1,3,3-tetramethyldisiloxane complex
Aqueous emulsion of liquid catalyst comprising divinyl-1,1,3,3-tetramethyldisiloxane solution (volume average particle diameter of liquid catalyst = 0.20 μm, ratio of liquid catalyst having particle diameter of 1 μm or less = 80% by weight, platinum (Metal concentration = 0.04% by weight)
To the total weight of the diorganopolysiloxane in the above emulsion,
m was uniformly mixed. This emulsion was allowed to stand at room temperature for one day to carry out addition polymerization to prepare an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silethylene bond. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (C).

Reference Example 4 A molecule having a viscosity of 400 mPas and a molecular chain having both ends dimethylvinylsiloxy group-blocked dimethylpolysiloxane (vinyl group content = 0.48% by weight) of 60.6 parts by weight and a viscosity of 130 mPas. Dimethylhydrogensiloxy group-blocked dimethylpolysiloxane at both ends of the chain (content of silicon-bonded hydrogen atoms = 0.025% by weight) 39.4
The mixture was mixed with 4 parts by weight of a 4% by weight aqueous solution of polyoxyethylene nonylphenyl ether (HLB = 13.1).
After emulsification with parts by weight, 20 parts by weight of pure water was added to prepare an emulsion. Next, platinum-1,3-divinyl-1,1,3,3-prepared separately from this emulsion
1,3-divinyl- of tetramethyldisiloxane complex
Aqueous emulsion of liquid catalyst comprising 1,1,3,3-tetramethyldisiloxane solution (volume average particle diameter of liquid catalyst = 0.05 μm, ratio of catalysts of 1 μm or less = 95% by weight, platinum metal concentration = 0. (0.4% by weight) was uniformly mixed in an amount such that the platinum metal was 20 ppm by weight based on the total weight of the diorganopolysiloxane in the emulsion. This emulsion was allowed to stand at room temperature for one day to carry out addition polymerization to prepare an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silethylene bond. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (D).

Reference Example 5 A molecule having a viscosity of 400 mPa.s and a molecular chain having both ends dimethylvinylsiloxy group-blocked dimethylpolysiloxane (vinyl group content = 0.48% by weight) 60.8 parts by weight and a viscosity of 130 mPa.s Dimethylhydrogensiloxy group-blocked dimethylpolysiloxane at both ends of the chain (content of silicon-bonded hydrogen atoms = 0.025% by weight) 39.0
Dimethylpolysiloxane in which one end of a molecular chain having a viscosity of 20 mPas is blocked by a dimethylhydrogensiloxy group and one end of the other molecular chain is blocked by a trimethylsiloxy group (containing silicon-timed t Amount = 0.05
(4% by weight), and mixed with 1.0 part by weight of the mixture.
1) After emulsifying with 30 parts by weight of an aqueous solution, 20 parts by weight of pure water was added to prepare an emulsion. Next, platinum-1,3-divinyl- which was prepared separately from this emulsion
1,1,3,3-tetramethyldisiloxane complex
Aqueous emulsion of liquid catalyst composed of 3-divinyl-1,1,3,3-tetramethyldisiloxane solution (volume average particle diameter of liquid catalyst = 0.05 μm, ratio of catalysts of 1 μm or less = 95% by weight, platinum metal (Concentration = 0.04% by weight)
This platinum metal was uniformly mixed in an amount of 20 ppm by weight with respect to the total weight of the diorganopolysiloxane in the emulsion. This emulsion is added at room temperature for 1 hour.
The mixture was allowed to stand for one day for addition polymerization to prepare an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silethylene bond. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (E).

Reference Example 6 A molecule having a viscosity of 400 mPa · s and 60.9 parts by weight of a dimethylpolysiloxane endblocked by dimethylvinylsiloxy groups at both ends of the molecular chain (vinyl group content = 0.48% by weight) and a viscosity of 130 mPa · s. Dimethylpolysiloxane blocked with dimethylhydrogensiloxy group at both ends of chain (content of silicon-bonded hydrogen atoms = 0.025% by weight) 38.5
One part by weight of a molecular chain having a viscosity of 20 mPas was blocked with a dimethylhydrogensiloxy group at one end and the other molecular chain end was blocked with a trimethylsiloxy group (content of silicon-bonded hydrogen atoms = 0. 2.04 parts by weight) and emulsified with 30 parts by weight of a 4% by weight aqueous solution of polyoxyethylene nonylphenyl ether (HLB = 13.1), and then added with 20 parts by weight of pure water to obtain an emulsion. Was prepared. Next, platinum-1,3-divinyl-1,1, prepared separately from this emulsion
Aqueous emulsion of a liquid catalyst comprising a 1,3-divinyl-1,1,3,3-tetramethyldisiloxane solution of 3,3-tetramethyldisiloxane complex (volume average particle diameter of liquid catalyst = 0.05 μm, 1 μm Ratio of the following catalysts = 9
5% by weight, platinum metal concentration = 0.04% by weight) was uniformly mixed in an amount such that the platinum metal was 20 ppm by weight based on the total weight of the diorganopolysiloxane in the emulsion. This emulsion was allowed to stand at room temperature for one day to carry out addition polymerization to prepare an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silethylene bond. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (F).

[Reference Example 7] 89.1 parts by weight of dimethylpolysiloxane (vinyl group content = 0.48% by weight) having a dimethylvinylsiloxy group at both ends of a molecular chain having a viscosity of 400 mPa · s and a molecule having a viscosity of 10 mPa · s. 10.9 parts by weight of dimethylpolysiloxane having a dimethylhydrogensiloxy group at both ends of the chain (silicon-bonded hydrogen atom content = 0.15% by weight), and 0.2 of tetramethyltetravinylcyclotetrasiloxane as an addition polymerization inhibitor In weight parts, platinum-1,3
A liquid catalyst comprising a 1,3-divinyl-1,1,3,3-tetramethyldisiloxane solution of divinyl-1,1,3,3-tetramethyldisiloxane complex (platinum metal concentration =
0.04% by weight) of the platinum metal is 20 ppm by weight based on the total weight of the diorganopolysiloxane.
Was uniformly mixed and heated and stirred at 150 ° C. for 1 hour to carry out addition polymerization to prepare an organosilicon polymer having a siloxane bond and a silethylene bond.

100 parts by weight of the organosilicon polymer is
% By weight-polyoxyethylene nonyl phenyl ether
(HLB = 13.1) After emulsification with 50 parts by weight of an aqueous solution, 50 parts by weight of pure water was added to prepare an aqueous emulsion of this organosilicon polymer. The average particle size and stability of the aqueous emulsion, and the viscosity and molecular weight of the organosilicon polymer were measured. The results are shown in Table 1. This aqueous emulsion was used as a cosmetic raw material (G).

[0037]

[Table 1]

[Production Method of Cosmetics and Cosmetics] Cosmetics were prepared as follows, and the characteristics were evaluated as follows. [Feeling of Cosmetics to Fingers] When 10 panelists used the cosmetics, 8 to 10 people felt that the cosmetics had a good touch, and 4 to 7 people. Δ, and the case where the number was 3 or less was evaluated as x. [Feeling of cosmetics on skin] When 10 panelists used the cosmetics, 8-10 people felt that the cosmetics felt good, and 4-7 people Δ, and the case where the number was 3 or less was evaluated as x. [Dispersion state of organosilicon polymer in cosmetics] Cosmetic products were thinly applied to a glass plate, and the particle size of the organosilicon polymer in the cosmetic products was observed with an optical microscope.
The ratio of the organosilicon polymer of 10 μm or less, the ratio of the organosilicon polymer of 50 μm or less,
The dispersibility of the organosilicon polymer in cosmetics was evaluated by determining the proportion of the organosilicon polymer exceeding μm, respectively. [Feeling of cosmetics on hair] Ten panelists used cosmetics, and the number of people who felt that cosmetics felt good on hair (smoothness, suppleness) was 8 or more, The case where the number was 4 to 7 persons was evaluated as △, and the case where the number was 3 persons or less was evaluated as x.

Example 1 10 parts by weight of cosmetic raw material (A)
Aqueous suspension of 60% by weight silicone rubber powder
(Average particle size of silicone rubber powder = 4 μm) 42 parts by weight,
5 parts by weight of octyl p-methoxycinnamate, 1 part by weight of α-monoisostearyl glyceryl ether polyoxyethylene sorbitan monooleate, 2 parts by weight of beeswax, 2 parts by weight of lanolin, 10 parts by weight of squalane, 10 parts by weight of liquid paraffin, 19 parts by weight of purified water, appropriate amount of preservative,
An appropriate amount of the fragrance was stirred with a homodisper at 2500 rpm for 3 minutes to prepare a milky skin cosmetic. Table 2 shows the evaluation results of the cosmetic.

Example 2 20 parts by weight of cosmetic raw material (B)
Aqueous suspension of 60% by weight silicone rubber powder
(Average particle size of silicone rubber powder = 4 μm) 32 parts by weight,
5 parts by weight of octyl p-methoxycinnamate, 1 part by weight of α-monoisostearyl glyceryl ether polyoxyethylene sorbitan monooleate, 2 parts by weight of beeswax, 2 parts by weight of lanolin, 10 parts by weight of squalane, 10 parts by weight of liquid paraffin, 19 parts by weight of purified water, appropriate amount of preservative,
An appropriate amount of the fragrance was stirred with a homodisper at 2500 rpm for 3 minutes to prepare a milky skin cosmetic. Table 2 shows the evaluation results of the cosmetic.

Comparative Example 1 A 60% by weight aqueous emulsion of dimethylpolysiloxane having trimethylsiloxy groups at both ends of the molecular chain (viscosity of dimethylpolysiloxane = 10,0)
00 mPa · s, average particle size of dimethylpolysiloxane = 0.3
aqueous suspension of 20 parts by weight, 60% by weight of silicone rubber powder (average particle size of silicone rubber powder =
4 μm) 32 parts by weight, octyl p-methoxycinnamate 5 parts by weight, α-monoisostearyl glyceryl ether polyoxyethylene sorbitan monooleate 1 part by weight, beeswax 2 parts by weight, lanolin 2 parts by weight, squalane 10 parts by weight, 10 parts by weight of liquid paraffin, purified water 19
A part by weight, an appropriate amount of a preservative, and an appropriate amount of a fragrance were stirred with a homodisper at 2500 rpm for 3 minutes to prepare a milky skin cosmetic. Table 2 shows the evaluation results of the cosmetic.

[0042]

[Table 2]

Example 3 15 parts by weight of cosmetic raw material (C)
2 parts by weight of silicone-treated titanium oxide, 10 parts by weight of octyl p-methoxycinnamate, dimethylpolysiloxane 15 having a viscosity of 20 mPa · s and capped with trimethylsiloxy groups at both molecular terminals.
Parts by weight, 3 parts by weight of polyoxyethylene (40 mol adduct) hydrogenated castor oil, 60 parts by weight of squalane, 5 parts by weight of glycerin, 3 parts by weight of beeswax, proper amount of preservative, proper amount of flavor, and proper amount of purified water were 1500 rpm using a Henschel mixer.
For 5 minutes to prepare a creamy skin cosmetic. Table 3 shows the evaluation results of this cosmetic.

COMPARATIVE EXAMPLE 2 50% by weight of an aqueous emulsion of dimethylpolysiloxane capped with trimethylsiloxy groups at both ends of the molecular chain (viscosity of dimethylpolysiloxane = 1,00)
000 mPa · s, average particle size of dimethylpolysiloxane =
0.8 μm) 15 parts by weight, 2 parts by weight of siliconized titanium oxide, 10 parts by weight of octyl p-methoxycinnamate, viscosity 2
15 parts by weight of dimethylpolysiloxane capped with a trimethylsiloxy group at both molecular terminals at 0 mPa · s, polyoxyethylene
(40 mol adduct) hydrogenated castor oil 3 parts by weight, squalane 6
0 parts by weight, 5 parts by weight of glycerin, 3 parts by weight of beeswax, an appropriate amount of preservative, an appropriate amount of perfume, and an appropriate amount of purified water were stirred with a Henschel mixer at 1500 rpm for 5 minutes to prepare a creamy skin cosmetic. Table 3 shows the evaluation results of this cosmetic.

[0045]

[Table 3]

Example 4 Cosmetic raw material (D) 7 parts by weight, polyoxyethylene (3 mol adduct) sodium lauryl sulfate 10 parts by weight, lauryl sulfate diethanolamine 5 parts by weight, propylene glycol 4 parts by weight, trace amount of preservative, The total amount of the colorant trace, the flavor trace, and the purified water was adjusted to 100 parts by weight at 1500 rpm using a Henschel mixer.
The mixture was stirred for 0 minute to prepare an aqueous hair cosmetic (shampoo). Table 4 shows the evaluation results of the cosmetic.

Example 5 Cosmetic raw material (E) 7 parts by weight, polyoxyethylene (3 mol adduct) sodium lauryl sulfate 10 parts by weight, lauryl sulfate diethanolamine 5 parts by weight, propylene glycol 4 parts by weight, preservative trace amount, The total amount of the colorant trace, the flavor trace, and the purified water was adjusted to 100 parts by weight at 1500 rpm using a Henschel mixer.
The mixture was stirred for 0 minute to prepare an aqueous hair cosmetic (shampoo). Table 4 shows the evaluation results of the cosmetic.

Example 6 7 parts by weight of cosmetic raw material (F), 10 parts by weight of polyoxyethylene (3 mol adduct) sodium lauryl sulfate, 5 parts by weight of diethanolamine lauryl sulfate, 4 parts by weight of propylene glycol, preservative trace amount, The total amount of the colorant trace, the flavor trace, and the purified water was adjusted to 100 parts by weight at 1500 rpm using a Henschel mixer.
The mixture was stirred for 0 minute to prepare an aqueous hair cosmetic (shampoo). Table 4 shows the evaluation results of the cosmetic.

Example 7 7 parts by weight of cosmetic raw material (G), 10 parts by weight of sodium polyoxyethylene (3 mol adduct) lauryl sulfate, 5 parts by weight of diethanolamine lauryl sulfate, 4 parts by weight of propylene glycol, preservative trace amount, The total amount of the colorant trace, the flavor trace, and the purified water was adjusted to 100 parts by weight at 1500 rpm using a Henschel mixer.
The mixture was stirred for 0 minute to prepare an aqueous hair cosmetic (shampoo). Table 4 shows the evaluation results of the cosmetic.

Comparative Example 3 A 60% by weight aqueous emulsion of dimethylpolysiloxane having a trimethylsiloxy group at both ends of the molecular chain (viscosity of dimethylpolysiloxane = 10,0)
00 mPa · s, average particle size of dimethylpolysiloxane = 0.3
μm) 7 parts by weight, polyoxyethylene (3 mol adduct) 10 parts by weight of sodium lauryl sulfate, 5 parts by weight of diethanolamine lauryl sulfate, 4 parts by weight of propylene glycol, trace amount of preservative, trace amount of colorant, trace amount of fragrance, and purified water The total amount of 100 parts by weight was stirred at 1500 rpm for 10 minutes with a Henschel mixer to obtain an aqueous hair cosmetic.
(Shampoo) was prepared. Table 4 shows the evaluation results of this cosmetic.
It was shown to.

[0051]

[Table 4]

[0052]

Industrial Applicability The cosmetic raw material of the present invention is characterized in that it can impart good finger and skin feel, elongation, and feeling of use to cosmetics. It has a feature that it has a feeling, elongation, and a feeling of use, and the method for producing a cosmetic product of the present invention has a feature that such a cosmetic product can be produced.

 ──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Takashi Tachibana 2-2 Chikusa Beach, Ichihara City, Chiba Prefecture Toray Dow Corning Silicone Co., Ltd. Research and Development Headquarters F term (reference) 4C083 AA082 AC022 AC022 AC122 AC342 AC442 AC782 AD152 AD161 AD162 AD512 CC01 CC05 CC38 DD31 EE06 EE07 FF01 FF05 4J035 CA02U CA021 CA14N CA14U CA141 HA01 HB01 HB03 LA08 LB14

Claims (10)

[Claims] 1. A cosmetic raw material comprising an organosilicon polymer having a siloxane bond and a silalkylene bond. 2. A cosmetic raw material comprising an aqueous emulsion of an organosilicon polymer having a siloxane bond and a silalkylene bond. 3. The organosilicon polymer undergoes a hydrosilylation reaction between a diorganopolysiloxane having silicon-bonded hydrogen atoms only at both ends of the molecular chain and a diorganopolysiloxane having silicon-bonded alkenyl groups only at both ends of the molecular chain. The cosmetic raw material according to claim 1 or 2, wherein the cosmetic raw material is obtained by addition polymerization using a catalyst. 4. A hydrosilylation reaction in which a diorganopolysiloxane having a silicon-bonded hydrogen atom only at both molecular terminals and a diorganopolysiloxane having a silicon-bonded alkenyl group only at both molecular terminals are emulsified in water. The cosmetic raw material according to claim 3, wherein the cosmetic raw material is obtained by addition polymerization with a catalyst for use. 5. An aqueous emulsion of a liquid catalyst containing a platinum-alkenylsiloxane complex as a main component, as the catalyst for the hydrosilylation reaction.
Cosmetic ingredients as described. 6. The cosmetic raw material according to claim 5, wherein the volume average particle diameter of the liquid catalyst containing a platinum-alkenylsiloxane complex as a main component in the aqueous emulsion is 1 μm or less. 7. In a volume particle size distribution of a liquid catalyst containing a platinum-alkenylsiloxane complex as a main component in an aqueous emulsion, the ratio of a catalyst having a particle size of 1 μm or less is 4%.
The cosmetic raw material according to claim 6, wherein the amount is 0% by weight or more. 8. The cosmetic raw material according to claim 5, wherein the alkenylsiloxane is 1,3-divinyl-1,1,3,3-tetramethyldisiloxane. 9. A cosmetic comprising the cosmetic raw material according to claim 1 or 2. 10. A method for producing a cosmetic, comprising mixing the cosmetic raw material according to claim 1 and another cosmetic raw material.