Shin-etsu Chemical Co., Ltd.

Canon Kabushiki Kaisha

Ryuichi Inaba

Yoshinori Inokuchi

Masanao Kamei

Ryuji Horiguchi

Hideo Saito

Tsuneo Kimura

Yutaka Kikuchi

Tetsuya Inukai

Masayuki Konishi

Hiroyuki Moriya

Chihiro Hayakawa

Takuya Abe

Teruki Ikeda

Fumio Asano

Hitoshi Ishihama

Tomoya Kanai

Mitsugu Saito

Kenichi Horikoshi

Hiroko Kikuchi

Tomoki Okawa

Kazuo Takeuchi

Yasunori Kawakami

Akihito Nagayama

Hidetaka Fukiharu

Inokuchi Yoshinori

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

This water-in-oil emulsion-type stick-shaped deodorant composition contains: (A) a volatile component having a boiling point of 250&#xb0; C. or less, where the total amount of water and ethanol in the (A) component is 83-100 mass %; (B) component (B-1), component (B-2), or a combination of components (B-1) and (B-2), wherein component (B-1) is an antiperspirant and component (B-2) is a fungicide; (C) a crosslinked silicone surfactant; (D) a non-crosslinked silicone surfactant; and (E) an oily component which has a solid phase at 25&#xb0; C.

Water-in-oil emulsion-type stick-shaped deodorant composition

A cosmetic including at least one cyclic silicone represented by formula (1), and having a boiling point of 205 to 255&#xb0; C. and a viscosity of less than 5 mm/s (25&#xb0; C.). This cosmetic has a light touch, a good spread, and excellent water repellency, forms a uniform cosmetic film, can achieve a feeling of use without a strong oily feeling, and has stability over time and cosmetic persistence when a variety of oil such as a silicone, hydrocarbon oil, and ester, an organic ultraviolet absorber, or an oily component being solid at 25&#xb0; C. is mixed. 

Cosmetic

Silicone composite particles are provided in which silicone elastomer spherical particles having a volume average particle size of 0.1-100 &#x3bc;m are coated with an organosilsesquioxane-based silicone resin containing inorganic nano-particles having a volume average particle size of up to 100 nm. The silicone composite particles are compounded in a cosmetic composition to exert a UV screening effect or bactericidal property inherent to inorganic nano-particles and to impart a pleasant feel on use. A preparing method and a cosmetic composition are also provided.

Silicone composite particles, making method, and cosmetic composition

Composite particles formed of core particles and a silicone elastomer adhered to surfaces of the core particles.

Composite particles, method for preparing the same and cosmetic composition

A powder surface-treated with an organopolysiloxane represented by the following average compositional formula (1):RRRSiO&#x2003;&#x2003;(1)wherein Ris selected from the group consisting of C1-30 alkyl, C1-30 fluoroalkyl, C6-30 aryl, and C6-30 aralkyl groups,  wherein Ris as defined above, each Ris, independently, selected from the group consisting of C1-30 alkyl, C1-30 fluoroalkyl, C6-30 aryl, and C6-30 aralkyl groups, Q is CHor an oxygen atom, wherein d is an integer of from 1 to 5, k is an integer of from 0 to 500, and h is an integer of from 0 to 3,

Powder surface-treated with an organopolysiloxane having carboxyl groups, a dispersion of the same, and a cosmetic comprising the same

Provided is a cosmetic including silicone microparticles, in which the silicone microparticles include 100 parts by mass of silicone elastomer spherical microparticles having a volume average particle diameter within a range from 0.1 to 100 &#x3bc;m, and 0.5 to 25 parts by mass of a polyorganosilsesquioxane that coats a surface of the silicone elastomer spherical microparticles, and the silicone elastomer is capable of absorbing not less than 30 parts by mass of at least one oily substance selected from the group consisting of sebum, hydrocarbon oils and ester oils per 100 parts by mass of the silicone elastomer. Even if containing an unctuous agent, the cosmetic exhibits favorable feelings upon use, with no spreading difficulties, stickiness, greasiness, oily film feeling, or the like, and is also capable of suppressing problems caused by sebum, namely, changes in the makeup cosmetic properties of the cosmetic, changes in the color of the cosmetic, increased shine, and the like.

Provided is a cosmetic including silicone microparticles, in which the silicone microparticles include 100 parts by mass of silicone elastomer spherical microparticles having a volume average particle diameter within a range from 0.1 to 100 &#x3bc;m, and 0.5 to 25 parts by mass of a polyorganosilsesquioxane that coats the surface of the silicone elastomer spherical microparticles, and the silicone elastomer is capable of absorbing not less than 200 parts by mass of a polymethylsiloxane having a viscosity at 25&#xb0; C. of not more than 10 mm/s per 100 parts by mass of the silicone elastomer. Even if containing a silicone oil, the cosmetic exhibits favorable feelings upon use, with no spreading difficulties, stickiness, greasiness, or oily film feeling or the like.

A sheet feeding apparatus with a sheet containing tray adapted to support a plurality of sheets and being shiftable between a sheet supplying position and a waiting position, a sheet supply roller for feeding out the sheet supported by the sheet containing tray at the sheet supplying position, a driving force transmitting device connected to the sheet supply roller and adapted to transmit a driving force from a drive source, and a holding device connected to the driving force transmitting device so that the sheet containing tray is shifted to the sheet supplying position by the driving force transmitted to the sheet supply roller and capable of holding the sheet containing tray at the sheet supplying position while the plurality of sheets are being supplied by the sheet supply roller.

Growing community of inventors

Ichikawa, Japan

Ryuichi Inaba