Shin-etsu Chemical Co., Ltd.

Shin-etsu Chemical C O., Ltd.

Chihiro Hayakawa

Masayuki Konishi

Masanao Kamei

Takuya Abe

Yoshinori Inokuchi

Hiromasa Yamaguchi

Tetsuya Inukai

Hiroyuki Moriya

Mamoru Hagiwara

Yoshinori Yoneda

Ryuji Horiguchi

Ryuichi Inaba

Emi Akabane

Teruki Ikeda

Hiroaki Tetsuka

Mitsugu Saito

Hiroko Kikuchi

Tomoki Okawa

Akiko Mizuno

Seiji Watae

Provided is a cosmetic wherein agglomeration during dispersion of a coloring pigment is suppressed, pigment irregularity in the bulk cosmetic and a coating film of the cosmetic is suppressed, and superior coloring pigment uniformity is demonstrated. An oily mixture composition including: (a) a silicone surfactant with an HLB of 6 or less; (b) an acrylic-silicone graft copolymer; (c) an oil that is liquid at 25° C.; and (d) a coloring pigment.

Oily mixture composition, cosmetic, and cosmetic manufacturing method

Described herein is a crosslinked organosilicone resin that has a crosslinked structure formed by reacting a silicone or hydrocarbon having an alkenyl group at both ends thereof with a hydrosilyl group-containing organosilicone resin, is soluble with a liquid oil at room temperature, and forms a film by volatilization of the oil. Also described herein is a method for preparing a crosslinked organosilicone resin and cosmetics containing a crosslinked organosilicone resin.

Crosslinked organosilicon resin, a method for producing same, and a cosmetic

The present invention addresses the problem of evaluating the hydrophobicity of a powder. According to the present invention, a powder is charged into a mixed solvent composed of a lipophilic solvent and a hydrophilic solvent, the voltage rate R of the mixed solvent is measured at predetermined time intervals while adding a lipophilic solvent to the mixed solvent charged with the powder, a parameter x correlating with the concentration of powder is defined for an arbitrary voltage rate R, a continuous function HP(x) of the ratio of a lipophilic solvent corresponding to x is defined, and HP(x) for required x is set as a representative value of a lipophilic solvent ratio distribution and used as an index of hydrophobicity.

Method for analyzing degree of hydrophobicity of powder, highly hydrophobized coloring pigment, and cosmetic containing said coloring pigment

A stick-shaped cosmetic product including (a) 0.1 to 4 mass % of at least one selected from a partially cross-linked polyether modified silicone and a partially cross-linked polyglycerin modified silicone, (b) 1 to 10 mass % of wax, and (c) 30 mass % or more of an aqueous component.

Stick-shaped cosmetic product

This organic group-modified organosilicon resin is represented by the average composition formula (1).(RSiO)(RSiO)(RSiO)(RSiO)(RSiO)(SiO)&#x2003;&#x2003;(1)[a, b, c, d, e and f are numbers that satisfy 0&#x2264;a&#x2264;400, 0&#x3c;b&#x2264;200, 0&#x2264;c&#x2264;400, 0&#x2264;d&#x2264;320, 0&#x2264;e&#x2264;320, 0&#x3c;f&#x2264;1,000, and 0.5&#x2264;(a+b+c)/f&#x2264;1.5.] Because this organic group-modified organosilicon resin can form films softer than those formed with trimethylene siloxysilicate, the cosmetic obtained by blending with said silicon resin feels good when used, has good cosmetic holding properties, spreads easily and has an excellent finish, easy removal, and superior scratch resistance.

Organic group-modified organosilicon resin, production method thereof, and cosmetic

A gel paste composition including (A) a crosslinking organopolysiloxane and (B) a liquid oil, the crosslinking organopolysiloxane (A) being obtained by reacting an organohydrogenpolysiloxane shown by the following general formula (I) with a polyoxyalkylene compound shown by the following general formula (II) in the presence of a catalyst for hydrosilylation reaction, the component (A) containing polyoxyethylene units in an amount of 20 wt % or more. As a result, the gel paste composition that contains a crosslinking organopolysiloxane having improved compatibility with ethylhexyl methoxycinnamate and water, and thus exhibits excellent dispersibility when blended to a cosmetic thereby providing good feeling and cosmetic sustainability.RHSiO&#x2003;&#x2003;(I)CHO(CHO)(CHO)CH&#x2003;&#x2003;(II).

Gel paste composition and cosmetic using the gel paste composition

A cosmetic containing an organosiloxane graft polyvinyl alcohol polymer having a structural unit shown by the general formula (1) and a structural unit shown by the general formula (3). The organosiloxane graft polyvinyl alcohol polymer has a number average molecular weight (Mn) of 5,000 to 500,000 as measured by GPC. There can be provided a cosmetic which has favorable feeling on use and oil resistance, and which is excellent in cosmetic durability improvement.  where Mand Meach represent a hydrogen atom, an acetyl group, or a siloxane group shown by the general formula (2), provided that at least one of Mand Mis a siloxane group shown by the general formula (2); and A represents a single bond or a linking group,  where Mrepresents a hydrogen atom, an acetyl group, or a siloxane group shown by the formula (2).

Cosmetic

An organic group-modified organosilicon resin having the average compositional formula (1), which is solid or liquid at 25&#xb0; C., is suited for use in cosmetics. The resin is able to form an emulsion having a pleasant feel on use, a high internal water phase, and stability over time. In formula (1), a, b, c, d, e, and f are numbers: 0&#x2264;a&#x2264;400, 0&#x3c;b&#x2264;200, 0&#x2264;c&#x2264;400, 0&#x2264;d&#x2264;320, 0&#x2264;e&#x2264;320, 0&#x3c;f&#x2264;1,000, and 0.5&#x2264;(a+b+c)/f&#x2264;1.5.(RSiO)(RSiO)(RSiO)(RSiO)(RSiO)(SiO)&#x2003;&#x2003;(1)

Organic group-modified organosilicon resin, making method, and cosmetics

Provided is a cosmetic composition formed from a silicone-branched polyglycerol-modified silicone, of which the weight-average molecular weight, in terms of polystyrene, does not exceed 10,000 according to gel permeation chromatography.

Cosmetic composition

Provided is an oil-based cosmetic comprising a siliconized polysaccharide compound, silicone emulsifier, organic modified clay mineral, carbonic acid ester, and wax. According to the present invention, a spinnable oil-based composition having exceedingly excellent adherability can be obtained by using a specific siliconized polysaccharide compound, silicone emulsifier, organic modified clay mineral, carbon dioxide ester, and wax, and if this composition is used in an eyelash cosmetic material, it is possible to obtain an eyelash cosmetic material that has excellent adherability, has an excellent long-lash effect without adding fibers, and is capable of imparting a natural finished look.

Oil-based cosmetic

One of the purposes of the present invention is to provide an aqueous dispersion of silicone elastomer particles to provide a stable emulsion and the silicone elastomer particle, wherein a polyoxyethylene alkyl ether which has an alkyl group having a large number of carbon atoms is used as a surfactant. Further, another purpose is to provide a cosmetic comprising said aqueous dispersion or said silicone elastomer particles and giving a good feeling in the use. The present invention provides an aqueous dispersion comprising (A) silicone elastomer particles having a 90% volume cumulative diameter (D90) of 0.3 to 20 &#x3bc;m in an amount of 5 to 80 mass %, based on a total mass of the aqueous dispersion, (B) at least one polyoxyethylene alkyl ether having an alkyl group having 18 carbon atoms in an amount of 0.01 to 15 mass %, based on a total mass of the aqueous dispersion, wherein a hydrophile-lipophile balance (HLB) of the polyoxyethylene alkyl ether is 12.8 to 15.1, and (C) water in an amount of 19 to 94 mass %, based on a total mass of the aqueous dispersion. Further, the present invention provides a material comprising the aforesaid components (A) and (B), a method for preparing the material and a cosmetic comprising the aqueous dispersion or the material.

Aqueous dispersion comprising silicone elastomer particles, a silicone elastomer particle and a cosmetic

Present invention provides a composition for a cosmetic comprising a fluorine-containing silicone polymer having a three-dimensional, cross-linked structure, prepared by addition polymerizing the following (A), (B) and (C) and containing 10 to 30 mass % of the fluorine atoms, relative to a total mass of (A) to (C),  and and further comprising

Composition for a cosmetic and a cosmetic comprising the same

A water-releasing cosmetic makeup material that has excellent stability, exhibits good dispersion of color pigments, and ruptures smoothly upon application to provide good spreadability and superior feeling. The water-releasing cosmetic makeup material is formed of a water-in-oil emulsion comprising (a) a partially crosslinked polyether-modified silicone, a partially crosslinked polyglycerin-modified silicone, or a combination thereof, (b) an acrylic silicone-based graft copolymer, and (c) a branched silicone surfactant in an amount of 0.05 to 0.7% by mass.

Water-releasing cosmetic makeup material

A composition for cosmetic preparation and a cosmetic preparation including the composition are provided. The composition includes a silicone-modified wax having a melting point of 100&#xb0; C. or above and an unctuous agent having a melting point of 80&#xb0; C. or below. The composition is prepared by cooling after dissolving and mixing the silicone-modified wax and the unctuous agent at temperature equal to or higher than the melting point of the silicone-modified wax. The composition has a smooth feel and a glossy surface and can be blended in a cosmetic preparation without being heated at 100&#xb0; C. or above.

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Tokyo, Japan

Chihiro Hayakawa