Mitsui Chemicals, Inc.

Mitsui Toatsu Chemicals, Incorporated

Sun Medical Co., Ltd.

Shinji Kiyono

Tadahito Nobori

Usaji Takaki

Kazumi Mizutani

Takaomi Hayashi

Isao Hara

Atsushi Shibahara

Katsuhiko Funaki

Satoshi Yamasaki

Toshihiko Nakagawa

Hirokazu Morita

Tetsuya Hamada

Aya Nakagawa

Takeshi Fukuda

Naoyuki Kakinuma

Tadatoshi Honda

Hidetaka Tsukada

Kenichi Goto

Daisuke Hasegawa

Shinsuke Ito

Kazuhiro Terada

Makoto Kotani

Goro Kuwamura

Shigeru Mio

Daisuke Nishiguchi

Kazuhiro Kosumi

Toshiaki Suzuki

Yoshiho Sonobe

Takeshi Tsuda

Masahiro Kouno

Naritoshi Yoshimura

Akihide Kudoh

Setsuko Fujiyoshi

Tatsuya Yamashita

Eiji Watanabe

Saiko Sawada

Tsuyoshi Matsumoto

Keisuke Takuma

Makoto Suzuki

Tatsuhiro Urakami

Hiroshi Ono

Yoshihiro Yamamoto

Kazuki Sakata

Takashi Yamamoto

Kazuhiko Yoshinaga

Yoshihisa Inoue

Mitsuyuki Mizoguchi

Hiroyuki Sakayama

Takashi Kanno

Akira Matsuura

Sayaka Miyamori

Takashi Jimbo

Takaharu Kasuga

Yoshiharu Hirose

Hideo Matsumura

Miyuki Konno

Hiromi Jouyama

Tomoyuki Ueno

Yoshihiro Fujita

Hina Suzuki

Tuneyuki Ohkubo

A compound (A) is represented by the formula (1):

Sulfur-containing polymerizable monomer and use thereof

The polycarbodiimide composition is a reaction product of polyisocyanate having a primary isocyanate group with alcohol, wherein the alcohol contains at least one oxyethylene-containing alcohol containing an oxyethylene group, and at least one oxyethylene-noncontaining alcohol containing no oxyethylene group, the at least one oxyethylene-noncontaining alcohol has a solubility parameter of 11.20 (cal/cm)or less.

Polycarbodiimide composition, method for producing a polycarbodiimide composition, water-dispersed composition, solution composition, resin composition, and cured resin

A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 30 mol % or more and 80 mol % or less.

Polyisocyanate composition, polyurethane resin, two-component curable polyurethane composition, coating material, and adhesive material

A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 5 mol % or more and 40 mol % or less.

Polyisocyanate composition, polyurethane resin, two-component curable polyurethane composition, and coating material

A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 60 mol % or more and 95 mol % or less.

A polyisocyanate composition includes at least a pentamethylenediisocyanate derivative. The polyisocyanate composition contains 5 mass % or more and 95 mass % or less of a uretdione derivative composed of an isocyanate bimolecular-product of pentamethylenediisocyanate.

Polyisocyanate composition, polyurethane resin, and coating

A polycarbodiimide composition is a reaction product of polyisocyanate having a primary isocyanate group and alcohols, wherein in an infrared absorption spectrum, the intensity ratio (IR/IR) of absorbance IRat or near 2120 cmdue to stretching vibration of the carbodiimide group relative to absorbance IRat or near 1720 cmdue to stretching vibration of the uretonimine group and urethane group is 1.5 or more and 4.5 or less.

Polycarbodiimide composition, method for producing polycarbodiimide composition, aqueous dispersion composition, solution composition, resin composition, and cured 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

A method for producing bis(aminomethyl)cyclohexanes includes a nuclear hydrogenation step of producing hydrogenated phthalic acids or phthalic acid derivatives by nuclear hydrogenation of phthalic acids or phthalic acid derivatives of at least one selected from the group consisting of phthalic acids, phthalic acid esters, and phthalic acid amides; a cyanation step of treating the hydrogenated phthalic acids or phthalic acid derivatives obtained in the nuclear hydrogenation step with ammonia, thereby producing dicyanocyclohexanes; and an aminomethylation step of treating the dicyanocyclohexanes obtained in the cyanation step with hydrogen, thereby producing bis(aminomethyl)cyclohexanes. In the cyanation step, metal oxide is used as a catalyst, and the obtained dicyanocyclohexanes have a metal content of 3000 ppm or less.

Method for producing bis(aminomethyl)cyclohexanes

A method for producing trans-1,4-bis(aminomethyl)cyclohexane includes a nuclear hydrogenation step of producing a hydrogenated terephthalic acid or terephthalic acid derivative by nuclear hydrogenation of a terephthalic acid or terephthalic acid derivative, the terephthalic acid or terephthalic acid derivative being at least one selected from the group consisting of terephthalic acid, terephthalic acid ester, and terephthalic acid amide; a cyanation step of treating the hydrogenated terephthalic acid or terephthalic acid derivative with ammonia, thereby producing 1,4-dicyanocyclohexane, and producing trans-1,4-dicyanocyclohexane from the obtained 1,4-dicyanocyclohexane; and an aminomethylation step of treating the trans-1,4-dicyanocyclohexane with hydrogen, thereby producing trans-1,4-bis(aminomethyl)cyclohexane. Metal oxide is used as a catalyst in the cyanation step, and the obtained trans-1,4-dicyanocyclohexane has a metal content of 3000 ppm or less.

Method for producing trans-1,4-bis(aminomethyl) cyclohexane

A salt useful as an active species in an organic reaction and represented by the following chemical formula (1):wherein n stands for an integer of from 1 to 8, Zrepresents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. In addition, a simple and efficient process is provided for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).

Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound

The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are accurately controlled in producing method of (co)polymer by the polymerization of polar unsaturated compound, and provide living polymerized (co)polymer obtained according to the producing method. For the purpose, polymerization catalyst composition which comprises the composition comprising organic oxysalt compound and hydroxycarbonyl compound having at least both an alcoholic hydroxyl group and a carbonyl group in the same molecule is provided and the polar unsaturated compound is polymerized by using the polymerization catalyst composition. The composition containing the obtained (co)polymer were able to provide thermosetting powder coating composition having particularly excellent characteristics.

Process for the production of living (co)polymers and use of the (co)polymers

Method for preparing living polymer in the presence of phosphazenium salt

Growing community of inventors

Kimitsu, Japan

Shinji Kiyono