Mitsui Chemicals, Inc.

Asahi Glass Company, Limited

Daisuke Hasegawa

Satoshi Yamasaki

Goro Kuwamura

Toshihiko Nakagawa

Hirokazu Morita

Masakazu Kageoka

Takeshi Fukuda

Shinji Kiyono

Naoyuki Kakinuma

Hidetaka Tsukada

Kenichi Goto

Shinsuke Ito

Tetsuya Hamada

Daisuke Nishiguchi

Kazuhiro Kosumi

Masaaki Sasaki

Shigetoshi Kuma

Chitoshi Shimakawa

Hideaki Otsuka

Tatsuya Nakashima

Kenichi Suzuki

Hiroshi Takeuchi

Jun Kamada

Akira Hasegawa

Kouya Kojima

Tomonori Hidesaki

Atsushi Tanigaki

Yasufumi Tsuchiya

Hirofumi Morita

Kuniaki Sato

Naosuke Kunimoto

Hiroshi Kanayama

Masumi Saruwatari

Masamichi Yokotani

Hiroaki Tago

Akiko Natsuji

Yutaka Ishikawa

Shinji Morohashi

Hidetaka Honda

Wataru Aoki

A polyurethane resin is a reaction product of a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane with a macropolyol component having a number average molecular weight of above 400 and 5000 or less. The shore A hardness thereof is 80 or less, a temperature at which a storage elastic modulus E' thereof shows 1&#xd7;10Pa is 200&#xb0; C. or more, and a ratio (E&#x2032;/E&#x2032;) of a storage elastic modulus E&#x2032;at 150&#xb0; C. with respect to a storage elastic modulus E&#x2032;at 50&#xb0; C. is 0.1 or more and 1.4 or less.

Polyurethane resin, producing method of polyurethane resin, and molded article

In a polyurethane gelincluding a gel layerand a coat layercovering the gel layerthe gel layeris produced by allowing at least aliphatic polyisocyanate having an average functionality of more than 2.0 to react with polyol having an average functionality of 3.0 or less, and the coat layeris produced by allowing at least aliphatic diisocyanate and/or alicyclic diisocyanate to react with bifunctional active hydrogen compound.

Polyurethane gel and production method thereof

A xylylenediisocyanate composition including xylylenediisocyanate and a compound represented by Chemical Formula (1) below, wherein 0.6 ppm or more and 60 ppm or less of the compound represented by Chemical Formula (1) below is contained: 

Xylylenediisocyanate composition, xylylenediisocyanate-modified composition, two-component resin material, and resin

A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.

External wound-healing agent, and external wound-healing material

A method for producing a polyurethane resin includes a reaction step of obtaining a primary product by reacting a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane with a polyol component containing a low molecular weight polyol having a number average molecular weight of 400 or less and a high molecular weight polyol having an average molecular weight of 2500 or more and 4000 or less under the presence of a bismuth catalyst, and a heat treatment step of heat treating the primary product to obtain a polyurethane resin. The bismuth catalyst content in the polyurethane resin is 0.1 ppm or more and 1000 ppm or less, and the heat treatment conditions in the heat treatment step are 50&#xb0; C. or more and 100&#xb0; C. or less and three days or more and ten days or less.

Producing method of polyurethane resin, polyurethane resin, and molded article

A foaming thermoplastic polyurethane resin is a reaction product of a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane and a polyol component. In a peak of chromatogram obtained by measurement of the foaming thermoplastic polyurethane resin with gel permeation chromatography, the area of a high molecular weight component having a weight average molecular weight of 400,000 or more with respect to the total area of the peak is 25% or more and 60% or less.

Foaming thermoplastic polyurethane resin, producing method thereof, and molded article

A foam polyurethane material is a reaction-foaming-product of a composition containing a polyisocyanate (a), an isocyanate-terminated prepolymer (b) containing 0.3 mass % or more and less than 5 mass % of an isocyanate group, a polyol (c), and a catalyst.

Foam polyurethane material, molded article, and method for producing foam polyurethane material

Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.

Polyurethane resin

The eyewear material is an eyewear material containing thermoplastic polyurethane. The eyewear material has a tan &#x3b4; peak at both less than 0&#xb0; C. and 0&#xb0; C. or more and 70&#xb0; C. or less observed in dynamic viscoelasticity measurement in tensile mode under the measurement conditions of a temperature increase speed of 5&#xb0; C./min and a measurement frequency of 10 Hz.

Eyewear material, eyewear frame, and eyewear

1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.1 ppm or more and 300 ppm or less of the compound represented by formula (1) below: 

1,4-bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, polyurethane resin, molded article, eyewear material, eyewear frame, and lens

In a method for producing 1,5-pentamethylenediamine, a lysine decarboxylase-expressing microorganism that is subjected to a treatment is used.

Method for producing 1,5-pentamethylenediamine, 1,5-pentamethylenediamine, 1,5-pentamethylene diisocyanate, method for producing 1,5-pentamethylene diisocyanate, polyisocyanate composition, and polyurethane resin

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Yokohama, Japan

Daisuke Hasegawa