Mitsui Chemicals, Inc.

A School Corporation Kansai University

Mitsui Toatsu Chemicals, Incorporated

Kenichi Goto

Satoshi Yamasaki

Naoyuki Kakinuma

Toshihiko Nakagawa

Hidetaka Tsukada

Shinsuke Ito

Takeshi Fukuda

Teruyuki Nagata

Shinji Kiyono

Mitsunobu Yoshida

Yoshiro Tajitsu

Hidetoshi Hayashi

Daisuke Hasegawa

Hirokazu Morita

Goro Kuwamura

Tetsuya Hamada

Kouki Fukumura

Hitoshi Onishi

Hiroshi Sonoda

Daisuke Nishiguchi

Kazuhiro Kosumi

Junko Naruse

Kazuhiro Tanimoto

Taizo Nishimoto

Satoko Fujiyama

Shigeru Mio

Han Zhang

Shoji Tamai

Masanobu Ajioka

Hideaki Oikawa

Wataru Yamashita

Takashi Kuroki

Hideki Mizuta

Akira Hasegawa

Takashi Hayashi

Ichiro Fujio

Shinichi Usugi

Yusuke Shimizu

Yukiko Mori

Michihiko Miyamoto

Takayuki Onogi

Katsuji Watanabe

Masataka Miyasato

Shunsuke Fujii

Toshiyuki Kataoka

Gen Miyata

Kazunari Okada

Akira Takahashi

Toyoharu Hayashi

Kei Sugawara

Takeshi Karino

Mitsuaki Chida

Kotaro Shimizu

Osamu Kohgo

Takaharu Isaki

Yoshiaki Aso

Toshihiro Tanaka

A lithium borate compound represented by the following Formula (I). In Formula (I), each of R, R, and Rindependently represents a hydrocarbon group having from 1 to 20 carbon atoms, which may have a substituent. Rrepresents a fluorine atom, a hydrocarbon-oxy group having from 1 to 10 carbon atoms, a hydrocarbon group having from 1 to 10 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 10 carbon atoms.

Lithium borate compound, additive for lithium secondary battery, nonaqueous electrolytic solution for lithium secondary battery, precursor for lithium secondary battery, and production method for lithium secondary battery

The present disclosure provides a lithium borate compound represented by the following Formula (I), an additive for a lithium secondary battery, which contains the lithium borate compound, a non-aqueous electrolyte solution for a lithium secondary battery, a lithium secondary battery precursor, and a lithium secondary battery and method of producing the same. In Formula (I), R represents a single bond or an alkylene group having from 1 to 4 carbon atoms.

Lithium borate compound, additive for lithium secondary battery, non-aqueous electrolyte solution for lithium secondary battery, lithium secondary battery precursor, and lithium secondary battery and method of producing the same

A lithium boron fluorophosphate complex compound including a compound A that is one selected from a group of lithium boron fluorophosphates represented by Formula (I), and a compound B that is one selected from a group of compounds represented by Formulae (II) to (IX). Rrepresents a hydrocarbon group, Rto Reach independently represent a hydrogen atom or a substituent, R, R, R, R, and Rto Reach independently represent a substituent, and R, R, and Reach independently represent a divalent linking group. 

Lithium boron fluorophosphate complex compound, lithium boron fluorophosphate-containing composition, lithium boron fluorophosphate, additive for lithium secondary battery, non-aqueous electrolytic solution for battery, and lithium secondary battery

Disclosed is a polymerizable composition for an optical material containing polyisocyanate (a) including aliphatic polyisocyanate (a1) and a modified aliphatic polyisocyanate (a2); and polythiol (b) having a di- or higher functional thiol group, in which the modified aliphatic polyisocyanate (a2) is contained in the polyisocyanate (a) in the amount of less than or equal to 60 weight %.

Polymerizable composition for optical material and optical material

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 piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 40% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 &#x3bc;m, of from 40 to 700.

Piezoelectric polymer material and method for producing same

The invention provides a piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 20% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 &#x3bc;m, of from 40 to 700.

The invention provides a piezoelectric polymer material including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, the piezoelectric polymer material having a piezoelectric constant dat 25&#xb0; C. of 10 pC/N or more, a degree of crystallinity obtained by X-ray diffraction of from 40% to 80%, and a haze of from 0.5 to 30.

Piezoelectric polymer material, process for producing same, and piezoelectric element

The present invention provides a resin composition which enables to obtain a transparent member having excellent transparency, high refractive index and high strength and an optical component composed of such a transparent member. A resin composition of the present invention comprises a polymerizable compound or a resin component and an organically modified fine particle produced in the presence of a high-temperature high-pressure water as a reaction field, in which an organic material is bonded to the surface of a metal fine particle.

Resin composition, transparent member obtained from the resin composition, and use of the same

A preparation process of a fluorine substituted aromatic compound comprising reacting an alkali metal or alkali earth metal salt of an aromatic compound having a hydroxy group with an organic fluorinating agent is disclosed. As a representative fluorinating agent, a bis-dialkylamino-difluoromethane compound, for example, 2,2&prime;-difluoro-1,3-dimethylimidazolidine, is exemplified. According to the process, an industrially useful fluorinated aromatic compound, for example, a fluorobenzene, a fluorine substituted benzophenone, a fluorine substituted diarylsulfone can be prepared with ease in economy without specific equipment.

Preparation process of fluorine substituted aromatic compound

The invention has disclosed a trifluoroacetoxylation agent and a preparation process of the agent, which is safe and ease to handle, very useful in industry, and represented by the formula (1);

Tetraalkylfluoroformamidinium trifluoroacetate and preparation process of same

A preparation process of an acetylene derivative comprising reacting a compound having a skeleton represented by the formula (1): ##STR1## in the molecular formula with a compound represented by the formula (2): ##STR2## wherein R.sup.1, R.sup.2 R.sup.3 and R.sup.4 are individually an alkyl group having 1 to 6 carbon atoms and can be the same or different, R.sup.1 and R.sup.3 can bond each other to form a ring, and R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 can be bond each other to form one or two heterocyclic rings: or with a compound represented by the formula (3): wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same as in the formula (2), and X.sub.1 is a ##STR3## chlorine, bromine or iodine atom.

Process for preparing acetylene derivative from a ketone compound

The invention relates to a preparation process of aliphatic polyester, comprising using an ion exchange resin as a drying agent and after the dehydration polycondensation reaction, regenerating and drying the used ion exchange resin and repeatedly using said ion exchange resin in the next dehydration polycondensation reaction, in a process for preparing aliphatic polyester from one or more aliphatic compound (A) by heating in an organic solvent in the presence of a catalyst, distilling a generated water containing organic solvent out of the reaction system, treating the distilled organic solvent with a drying agent, and returning the treated solvent to the reaction system to progress a dehydration polycondensation reaction. The process of the invention enables one to steadily and efficiently prepare in industry an aliphatic polyester having an excellent color tone, high molecular weight and high quality.

Preparation process of aliphatic polyester

Growing community of inventors

Chiba, Japan

Kenichi Goto