Mitsui Chemicals, Inc.

Goro Kuwamura

Satoshi Yamasaki

Daisuke Hasegawa

Toshihiko Nakagawa

Takeshi Fukuda

Hirokazu Morita

Daisuke Nishiguchi

Kazuhiro Kosumi

Shinji Kiyono

Naoyuki Kakinuma

Hidetaka Tsukada

Kenichi Goto

Shinsuke Ito

Tetsuya Hamada

Masakazu Kageoka

Kenichi Suzuki

Hiroshi Takeuchi

Jun Kamada

Akira Hasegawa

Tomonori Hidesaki

Kouya Kojima

Yasufumi Tsuchiya

Kaoru Ueno

Naosuke Kunimoto

Kuniaki Sato

Kazuto Usaka

Ryo Shinagawa

Masashi Shimamoto

Akiko Natsuji

Jun Takahashi

Keita Takuno

Gran Martinez Alejandro

Takuya Chikamoto

Alejandro Gran Martinez

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 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 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

A method for producing trans-bis(aminomethyl)cyclohexane includes a trans-isomerization step in which cis-dicyanocyclohexane is isomerized into trans-dicyanocyclohexane by heating dicyanocyclohexane containing cis-dicyanocyclohexane in the presence of a tar component produced by distillation of dicyanocyclohexane; and an aminomethylation step in which trans-dicyanocyclohexane produced by the trans-isomerization step is allowed to contact with hydrogen to produce trans-bis(aminomethyl)cyclohexane.

Method for producing trans-bis(aminomethyl)cyclohexane, method for producing bis(isocyanatomethyl)cyclohexane, bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, and 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

Microcellular polyurethane elastomer, and method of producing the same

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Chiba, Japan

Goro Kuwamura