Titan Kogyo Kabushiki Kaisha

Ube Industries, Inc.

Nissan Chemical Industries Limited

Kyoyu Agri Co., Ltd.

Akira Nakamura

Masayasu Morishita

Motohisa Shimizu

Shohei Fukuda

Tatsuo Okada

Takehiko Asahara

Satoshi Oohida

Katsumasa Harada

Shigeyoshi Nishino

Kenji Hirotsu

Takashi Harada

Hiroaki Uchida

Hidetaka Shima

Hiroyuki Oda

Naoko Okada

Hideaki Tokunaga

Caihong Liu

Hisayoshi Funatsu

Hiromasa Kondoh

Tetsuyuki Wada

To solve the problem of providing a black iron oxide that can yield sufficient blackness, opacifying effect and covering ability even if it is only added in a small amount for use with cosmetic materials, the invention provides a black iron oxide with a high tinting strength having an octahedral shape, a specific surface in a range of 8.0 to 20.0 m/g, and a particle surface coated with a layer containing one type or two or more types of inorganic compounds, wherein an L*value of a color on reduction is 31.0 or lower and a b*value of a color on reduction is 1.5 or lower, a production method thereof, and cosmetic materials that incorporate the same.

Black iron oxide for use with cosmetics, production method thereof, and cosmetic materials comprising the same

A Rutile-type titanium dioxide having a rectangular particulate form configured such that major axial planes of rod-shaped particles having a minor axis diameter of 3 to 10 nm are oriented and aggregated in the minor axial direction, and a rod-shaped rutile-type titanium dioxide obtained by treating the rectangular rutile-type titanium dioxide with heat, wherein an apparent average major axial length of the oriented and aggregated particles is 100 to 400 nm, an apparent average minor axial length thereof is 30 to 150 nm, an apparent average axial ratio represented by apparent average major axial length/apparent average minor axial length is 2 to 5 and a specific surface area thereof is 10 to 100 m/g.

Rutile-type titanium dioxide and cosmetics using the same

The present invention provides products comprising cocoon-shaped rutile-type titanium dioxide, i.e., cosmetics which have high UV blocking ability, provide a good feel upon use without leaving squeakiness or graininess on the skin, and also give a natural bare skin appearance without causing white masking, due to adequate tinting strength and covering power, as well as external additives for toner which are excellent in prevention of filming on a photosensitive member and inhibition of aggregation between toner particles. The present invention is directed to rutile-type titanium dioxide having a cocoon-shape, as well as cosmetics comprising this titanium dioxide, and external additives for toner comprising this titanium dioxide which is hydrophobically treated.

Cocoon-shaped rutile-type titanium dioxide, as well as cosmetics and external additives for toner comprising the same

The present invention relates to benzoxazole compounds represented by the following formula (I): 

Benzoxazole compounds, process for producing the same and herbicides

A process comprising reacting an aliphatic carboxylic ester compound with acetonitrile in the presence of a metal alkoxide to yield a metal salt of a &#x3b2;-ketonitrile compound, subsequently transferring the salt to an aqueous medium, and neutralizing the solution to obtain the &#x3b2;-ketonitrile compound in a free state, wherein a water-immisible organic solvent and water are added to the reaction mixture containing the &#x3b2;-ketonitrile compound metal salt yielded to transfer the metal salt to the water, the resultant aqueous solution of the &#x3b2;-ketonitrile compound metal salt is separated from the organic solvent by phase separation or another technique and then neutralized, and the resultant free &#x3b2;-ketonitrile compound is taken out by extraction with an organic solvent.

Process for producing &#x3b2;-ketonitrile compound

The present invention relates to benzoxazole compounds represented by the following formula (I):

Benzoxazole compound, process for producing the same, and herbicide

2-Cyclopropyl-4-(4'-fluorophenyl)quinoline-3-carboxyaldehyde useful as a material for pharmaceutical products, can be obtained by reacting 3-cyclopropyl-3-oxopropanenitrile with 2-amino-4&#x2032;-fluorobenzophenone to obtain 2-cyclopropyl-4-(4&#x2032;-fluorophenyl)quinoline-3-carbonitrile, and reducing it.

Process for producing quinoline carboxyaldehyde derivative and intermediate thereof

Benzoxazole compounds, process for the preparation thereof and herbicides

Magnetite particles that contain 0.1-5.0 wt % of P, 0.1-5.0 wt % of Al and optionally up to 5.0 wt % of Si on the basis of Fe, that have .sigma..sub.r /SSA ratio of no more than 0.9 (.sigma..sub.r, residual magnetic flux density; SSA, specific surface area) after the application of 1 kOe and that are hexahedral, octahedral or tetradecahedral in shape have a sufficiently low residual magnetic flux density that they are suitable for use as magnetic toners or resin-dispersed carriers in electrostatic copying.

Magnetite particles, a process for producing them and applications

Growing community of inventors

Yamaguchi, Japan

Akira Nakamura