Kawasaki, Japan
Kawasaki, Japan

Asahi Kasei Corporation is a global Japanese chemical company. Its main products are chemicals and materials science. It was founded in May 1931, using the paid in capital of Nobeoka Ammonia Fiber Co., Ltd, a Nobeoka, Miyazaki based producer of ammonia, nitric acid, and other chemicals. Now headquartered in Tokyo, with offices and plants across Japan, as well as China, Singapore, Thailand, U.S.A. and Germany.The company is listed on the first section of Tokyo Stock Exchange and is a constituent of the TOPIX 100 and Nikkei 225 stock market indices. Wikipedia.


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Patent
Asahi Kasei Corporation | Date: 2016-11-15

A method for producing a cellulose composite containing cellulose and a polysaccharide, wherein a median size of colloidal cellulose composites contained in the cellulose composite as measured by a dynamic light scattering method is 0.85 m or more, the method including treating a mixture containing cellulose, a polysaccharide and an aqueous medium together in a wet process, wherein a solid content is controlled to be 35 mass % or more, and temperature is set at 80 C. or less.


A method for producing propylene, the method contains: producing a silica composite by preparing a raw material mixture containing silica and zeolite; drying the raw material mixture to obtain a dried product; and calcining the dried product; wherein the method contains the step of bringing a solution of phosphate into contact with the zeolite and/or the dried product to thereby adjust a phosphorus content in the silica composite to 0.01 to 1.0% by mass based on the total mass of the silica composite, a source of the phosphorus is phosphate, and the zeolite is of MFI type and has a SiO_(2)/Al_(2)O_(3 )ratio (by mol) of 20 or more; and bringing the silica composite into contact with a hydrocarbon source containing at least one component selected from the group consisting of ethylene, ethanol, methanol, and dimethyl ether in the presence of steam.


Patent
Asahi Kasei Corporation | Date: 2016-08-15

In a hollow fiber membrane module including a housing case, potting material loaded into the housing case, a cap attached to each of both ends of the housing case, and an O-ring closely held by the potting material and the cap, a whole area of the O-ring between a first contact point and a second contact point is exposed when the area is viewed from a central axis passing through a center of the ring shape of the O-ring, the first contact point being a point of contact between the O-ring and the cap, which faces inner cavity defined by an end surface of the potting material facing the cap, an inner circumferential surface of the O-ring and an inner circumferential surface of the cap, and the second contact point being a point of contact between the O-ring and the potting material, which faces the inner cavity.


Patent
Asahi Kasei Corporation | Date: 2016-11-21

A method for producing a protein adsorbent comprising a substrate and a molecular chain fixed on the surface of the substrate is disclosed. The method comprises, in this order: a dry-heat treatment step of heating a pretreatment adsorbent comprising the substrate and the molecular chain fixed on the surface of the substrate, in which the molecular chain contains a weak electrolytic ion-exchange group; and a wet-heat treatment step of heating the pretreatment adsorbent in a moistened state with a liquid or steam to obtain the protein adsorbent.


Patent
Asahi Kasei Corporation | Date: 2016-10-20

An acrylic thermoplastic resin composition includes a first acrylic resin having a first structural unit represented by the following formula (1) and a second structural unit represented by the following formula (2), and a second acrylic resin having the first structural unit represented by the following formula (1) and a third structural unit represented by the following formula (3), in which a total content of the first unit is 50 to 95 mass % and a total content of the second structural unit and the third structural unit is 5 to 50 mass % based on a total amount of the first acrylic resin and the second acrylic resin:


The present invention provides a method for measuring the concentration of an analyte in a test solution wherein the analyte is mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A, comprising the following steps (p) and (q): (p) a step of allowing an enzyme that catalyzes a reaction represented by Reaction Formula 1 and an enzyme that catalyzes a reaction represented by Reaction Formula 2 to act on a test solution containing mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A in the presence of a hydrogen acceptor X, a hydrogen donor Y, and coenzyme A; and (q) a step of measuring an amount of: a reduced hydrogen acceptor X that is produced; or an oxidized hydrogen donor Y that is produced; or a hydrogen acceptor X that is decreased; or a hydrogen donor Y that is decreased, wherein the hydrogen donor Y and the reduced hydrogen acceptor X are not the same.


Patent
Japan Atomic Power Company, Asahi Kasei Corporation and Thermographers Co. | Date: 2016-11-16

To provide a practical infrared transmissive protective cover capable of detecting a heating abnormality of an internal heating element and the like by visual observation and by using infrared rays. The infrared transmissive protective cover includes a light transmission section, the light transmission section is made of a resin sheet containing a resin composition, and a total light transmittance of the light transmission section in a visible light region is 70% or more, and an average infrared transmittance in a wavelength range of 8 to 14 m is 5% or more.


Patent
Asahi Kasei Corporation and Taisei Corporation | Date: 2016-08-29

[Problem to be Solved] An object of the present invention is to provide an aqueous writing tool for a food product packaging material, which can provide written products having high color developability and fixing properties upon writing on food product packaging materials. [Solution] An aqueous writing tool for a food product packaging material comprising an ink comprising two or more pigments and one or more dispersants, wherein


Patent
Asahi Kasei Corporation and Taisei Corporation | Date: 2016-08-29

[Problem to be Solved] An aqueous writing tool for a food product packaging material, comprising an ink with which writing can be done on food product packaging materials without being repelled can be provided. [Solution] An aqueous writing tool for a food product packaging material comprising an ink comprising a pigment, wherein the ink has a contact angle with a food product packaging material of 30 to 46.


Yoshino A.,Asahi Kasei Corporation
Angewandte Chemie - International Edition | Year: 2012

The moment of truth: The lithium-ion battery is currently the predominant power source for mobile phones, laptop computers, and many other portable electronic devices, and is being used increasingly in electric vehicles. Its inventor, A. Yoshino, describes the process by which the lithium-ion battery was first developed (picture shows the first test-tube cell) and made commercially practical. Successful safety tests marked the turning point in this work. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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