Shiseido Company, Limited

Koji Abe

Reiji Miyahara

Keiichi Uehara

Toshio Fukuda

Takahiro Akutsu

Susumu Yoshida

Tomiyuki Nanba

Yuki Sugiyama

Hideto Ueda

Toshikatsu Hayashi

Tadashi Nakamura

Hidefumi Araki

Kenzo Ito

Akio Nasu

Tetsuya Kanemaru

Yosuke Ikebe

Shuji Nishihama

Fumiaki Nakamura

Tomiko Takakura

Nozomiko Seki

Syoji Nishiyama

Yukari Aoyama

To provide a low-viscosity water-in-oil emulsion sunscreen cosmetic composition which is extremely excellent in UV protective enhancing effect (as the protective boosting effect of the UV absorption capability thereof) over a broad UV radiation region and has superior feeling in use (smooth feeling, dry feeling, and non-sticky feeling, etc.). A water-in-oil emulsion sunscreen cosmetic composition comprising (a) from 0.01 to 10% by mass of a water-soluble polymer and (b) from 0.01 to 30% by mass of a UV absorbent, and having a viscosity of at most 10,000 mPa&#xb7;s (as measured with a B-type viscometer at 30&#xb0; C.), wherein the aqueous phase accounts for at most 45% by mass.

Water-in-oil emulsion sunscreen cosmetic composition

The present invention provides a water-in-oil emulsified sunscreen cosmetic characteristically comprising the following (a) through (g): The object of the present invention is to provide a water-in-oil emulsified sunscreen cosmetic that manifests a superior texture during use, a high ultraviolet protection effect, and superior stability.

Water-in-oil emulsified sunscreen cosmetic

The present invention provides a sunscreen composition containing (a) a surfactant, (b) water, (c) an oil component, and (d) a water- and/or oil-soluble ultraviolet absorbent, that is in a bicontinuous microemulsion phase at 25&#xb0; C. The transparent bicontinuous microemulsion spreads well when applied to the skin, to give a uniform and well-absorbed film.

Sunscreen composition

The present invention provides a sunscreen cosmetic comprising, relative to the total amount of the sunscreen cosmetic, 10-90 wt % of agar microgel (wherein the agar content in the agar microgel is 0.4-1 wt %) and 0.1-5 wt % of a water soluble ultraviolet absorbent. It was necessary to blend in an organic ultraviolet absorbent and such to give sunscreen cosmetics a high SPF value. However, there was a problem in that it was hard for a water soluble ultraviolet absorbent in the formulation to achieve the expected SPF function. Also, sunscreen cosmetics are particularly desired to give a freshing texture upon use. In view of the fact that a high blend ratio of an oil soluble ultraviolet absorbent inhibits the freshing texture upon use, the object of the present invention is to provide a sunscreen cosmetic that achieves a high SPF value and a freshing texture upon use by mainly blending in a water soluble ultraviolet absorbent.

Sunscreen cosmetic

The present invention provides a modified powder that is obtainable by coating the surface of a base powder with a hydrophobizing agent and a cationic surfactant. In the modified powder described above, it is preferable that the amount of coated hydrophobizing agent and the amount of coated cationic surfactant are 3 to 90% by mass and 0.5 to 10% by mass, respectively, relative to the self weight of the base powder. In the modified powder described above, it is preferable that the mass ratio of the coated hydrophobizing agent and the coated cationic surfactant is from 1:1 to 9:1. In addition, the present invention provides a cosmetic composition comprising the above modified powder wherein the modified powder and the base powder have an ultraviolet scattering effect. In the cosmetic composition described above, it is preferable that the blended amount of the modified powder is from 0.5 to 100% by mass. Furthermore, the present invention provides a sunscreen cosmetic composition comprising the above modified powder with an ultraviolet scattering effect. In the sunscreen cosmetic composition described above, it is preferable that the base powder is one or more selected from the group consisting of titanium oxide, zinc oxide, iron oxide, cerium oxide, bismuth oxide, zirconium oxide, chromium oxide, and tungstic acid. In the sunscreen cosmetic composition described above, it is preferable that the blended amount of the modified powder is from 1 to 40% by mass.

Modified powder and cosmetic composition using the same

The present invention is a detergent composition which contains alkali metal N-methyltaurate, alkali metal taurate or alkali metal hypotaurate salt of a specific organic acid or organic alkali N-methyltaurate, organic alkali taurate or organic alkali hypotaurate salt of a specific organic acid. The detergent composition of the present invention is an excellent detergent composition which has better foaming and foam quality, less pH dependence of the foaming, creamy foam, no creaking feeling or stretched feeling and no offensive odor.

Detergent composition comprising salts of hydroxyalkyl ether carboxylic acids

A detergent composition which contains alkali metal N-methyltaurate, alkali metal taurate or alkali metal hypotaurate salt of a specific organic acid or organic alkali N-methyltaurate, organic alkali taurate or organic alkali hypotaurate salt of a specific organic acid. The detergent composition of the present invention is an excellent detergent composition which has better foaming and foam quality, less pH dependence of the foaming, creamy foam, no creaking feeling or stretched feeling and no offensive odor.

Detergent composition

The present invention is a detergent composition which characteristically contains 1) an alkali metal N-methyltaurate salt or an organic alkali N-methyltaurate salt of N-acylmethyltaurine, N-acyltaurine, alkylsulfuric ester, alkyl ether sulfuric ester, or alkylsulfonic acid; 2) an alkali metal hypotaurate salt or an organic alkali hypotaurate salt of N-acylmethyltaurine, N-acyltaurine, alkylsulfuric ester, alkyl ether sulfuric ester, or alkylsulfonic acid; or 3) an alkali metal taurate salt or an organic alkali taurate salt of N-acylmethyltaurine, N-acyltaurine, alkylsulfuric ester, alkyl ether sulfuric ester, or alkylsulfonic acid.

A composition for external use which contains xyloglucan. It preferably further contains an ultraviolet shielding agent, a thickening polysaccharide, a thickening polysaccharide and sericin, a carboxyvinylpolymer, or an alkyl-modified carboxyvinylpolymer.

Composition for external use

A multi-layer lightweight texture composition containing, (i) an oil component; (ii) water; (iii) a polyol; (iv) a nonionic surfactant selected from stearic acid polyoxyethylene (degree of polymerization n=3-10) cetyl ether, stearic acid polyoxyethylene (n=4-12) stearyl ether, stearic acid polyoxyethylene (n=3-15) lauryl ether, isostearic acid polyoxyethylene (n=2-10) lauryl ether, monostearic acid glycerol, lauroylglutamic acid polyoxyethylene (n=2-5) octyldodecyl ether diester, lauroylglutamic acid dipolyoxyethylene (n=2-5) stearyl ether, polyoxyethylene (n=3-50) oleyl ether, polyoxyethylene (n=2-12) diisostearate, and sorbitan monooleate; and (v) a water-soluble salt.

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Yokohama, Japan

Koji Abe