Mitsui Chemicals, Inc.

Yoshiki Shimokawatoko

Hiroshi Takeuchi

Koichi Murayama

Masaaki Sasaki

Akihiro Matsuda

Takashi Kanno

Satoshi Ikeda

Keiji Okada

Shigenobu Ikenaga

Shigekazu Matsui

Tetsuya Hamada

Junichi Mohri

Koji Takamatsu

Masahiro Enna

Yasushi Kotaki

Mitsuaki Chida

Kazuhiko Okubo

Souta Itou

Toshiyuki Shimazaki

Hiroshi Terao

Koji Takeda

A method for producing urethane compounds includes allowing a primary amine, a urea and/or an N-unsubstituted carbamate, and an alcohol to react in the presence of a compound containing a noncoordinating anion and a metal atom as a catalyst.

Urethane compound and method for producing the same, and isocyanate and method for producing the same

A method for treating an isocyanate residue, which comprises carrying out a thermal decomposition reaction of a carbamate that is produced by the reaction among an amine, urea and/or an N-unsubstituted carbamic acid ester and an alcohol to produce a decomposition solution, separating an isocyanate and the alcohol from the decomposition solution to produce the isocyanate residue, and bringing the isocyanate residue into contact with high-pressure/high-temperature water to decompose the isocyanate residue into an amine; and a method for treating a carbonate, which comprises bringing the carbonate into contact with high-pressure/high-temperature water to decompose the carbonate into an alcohol.

Method for treatment of isocyanate residue, and method for treatment of carbonate

A method for producing toluenedicarbamate includes a carbamate production process of producing toluenedicarbamate by reaction between toluenediamine, urea, and/or N-unsubstituted carbamic acid ester, and alcohol; and a benzoyleneurea reduction process of reducing a disubstituted benzoyleneurea and a derivative thereof to 10 mol or less relative to 100 mol of toluenedicarbamate, wherein the disubstituted benzoyleneurea is represented by formula (1) below and has a methyl group and an amino group: 

Method for producing toluenedicarbamate, method for producing toluenediisocyanate, and toluenedicarbamate

The present invention is a polyolefin polymer containing vinyl groups at both ends thereof, and a composition and a molded product containing the polymer, wherein the polymer contains a constitutional unit derived from at least one selected from the group consisting of ethylene (a), an &#x3b1;-olefin (b) having 3 to 20 carbon atoms, and a cyclic olefin (c), and The polymer of the present invention may be molded by a LIM molding, an injection molding, a transfer molding, a compression molding, and the like, and is excellent in acid resistance, gas permeation resistance, hydrolysis resistance, and dynamic fatigue resistance. From the polymer, a thermoplastic resin composition and a crosslinkable resin composition, and a crosslinked composition having excellent mechanical characteristics are obtained.

Polyolefin polymer containing vinyl groups at both ends and composition thereof

Copolymers when used as lubricating oil viscosity modifiers enable lubricating oils to show excellent low-temperature properties. Processes for producing the copolymers are disclosed. Lubricating oil viscosity modifiers and lubricating oil compositions contain the copolymers. A copolymer includes structural units derived from ethylene and structural units derived from a C3-20 &#x3b1;-olefin and satisfies the following requirements (1) to (8): (1) the melting point (Tm) according to DSC is in the range of 0 to 60&#xb0; C.; (2) the melting point (Tm) and the density D (g/cm) satisfy the equation: Tm&#x2267;1073&#xd7;D&#x2212;893; (3) Mw/Mn according to GPC is from 1.6 to 5.0; (4) the half-value width (&#x394;T) of a melting peak measured by DSC is not more than 90&#xb0; C.; (5) the half-value width (&#x394;T) and the melting point (Tm) satisfy the equation: &#x394;T&#x2266;&#x2212;0.71&#xd7;Tm+101.4; (6) the heat of fusion (&#x394;H) as measured by DSC is not more than 60 J/g; (7) the crystallization temperature (Tc) measured by DSC is not more than 70&#xb0; C.; (8) the heat of fusion (&#x394;H), the crystallization temperature (Tc), each measured by DSC and the crystallization temperature measured by a CRYSTAF method (T) satisfy the equation: Tc&#x2212;T&#x2267;0.028&#xd7;&#x394;H+25.3.

Copolymer, production process thereof, lubricating oil viscosity modifier, and lubricating oil composition

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Chiba, Japan

Yoshiki Shimokawatoko