Nippon Shokubai Co., Ltd.

Dai-ichi Kogyo Seiyaku Co., Ltd.

Kazuo Takei

Fumihide Tamura

Taketo Toba

Hiroyuki Ikeuchi

Toshiaki Matsunaga

Yuichi Sato

Michiyuki Kono

Yasunori Okumura

Masahito Nishiura

Manabu Kikuta

Shimpei Sato

Koichiro Saeki

Izuho Okada

Toshiaki Kuriyama

Naohiko Itayama

Shigetaka Takamiya

Masashi Yukitake

Masashi Hashimoto

Akane Oguro

The present invention provides a stable electrolyte material that provides high safety, exhibits favorable ionic conductivity not only at room temperature but also in the low temperature range at or below room temperature, has excellent reduction resistance, and can be suitably used as a material of a lithium ion cell. The electrolyte material includes, as essential components, a specific polymer having an ether bond in a side chain thereof, and a specific electrolyte salt.

Electrolyte material, and battery material and secondary battery using said electrolyte material

The present invention provides a method for producing fluorosulfonylimides more safely, rapidly and efficiently, which enables suppression of production of by-products, and fluorosulfonylimides. The method for producing a fluorosulfonylimide salt of the present invention includes a step of reacting a fluoride compound containing at least one element selected from the group consisting of elements of Group 11 to Group 15 and Period 4 to Period 6 (excluding arsenic and antimony) with a compound represented by the following general formula (I) to give a fluorosulfonylimide salt represented by the general formula (II): [Chemical Formula 1] wherein Rdenotes at least one element selected from the group consisting of elements of Group 11 to Group 15 and Period 4 to Period 6 (excluding arsenic and antimony); Rdenotes fluorine, chlorine or a fluorinated alkyl group having 1 to 6 carbon atoms; Rdenotes fluorine or a fluorinated alkyl group having 1 to 6 carbon atoms; and m denotes an integer of 2 or 3.

Sulfonylimide salt and method for producing the same

The present invention provides a production process, in which, when an ethylene oxide copolymer is obtained, conditions for obtaining this copolymer having a desirable molecular weight with ease and good reproducibility are provided. The production process for an ethylene oxide copolymer, according to the present invention, comprises the step of carrying out polymerization of a monomer mixture under stirring in a solvent, thereby obtaining the ethylene oxide copolymer, wherein the monomer mixture includes ethylene oxide and a substituted oxirane compound of a structural formula (1) as essential raw materials; with the production process being characterized in that the stirring is carried out by a stirring power of not less than 0.6 kW/m.

Production process for ethylene oxide copolymer

This invention provides a production process by which a polymer having a hydroxyl group at both terminals can be easily obtained with a cheap price and good efficiency from a wide field of vinyl-based monomers including polar ones. In this process, a polymerization reaction of a vinyl-based monomer (a) is performed by using hydrogen peroxide (b) and, on this occasion, either one or both of a hydrogen peroxide-decomposing accelerator (c) and an amphiphilic compound (d) are further used and any component other than the (a), (b), (c) and (d) is not substantially used.

Process for producing polymer having hydroxyl group at both terminals

This invention provides a process by which a polymer having a hydroxyl group at both terminals can be easily obtained with a cheap price and good efficiency from a wide field of vinyl-based monomers including polar ones. The process is arranged in such a manner that the polymerization of a vinyl-based monomer (a) is performed in the presence of an alcohol (b) having no addition-polymerization reactivity by using an initiator (c) consisting essentially of a peroxide and, on this occasion, at least one of catalysts (d) selected from a group consisting of an organic sulfonic acid compound having no addition-polymerization reactivity and an inorganic acid is further used and a reactor does not substantially contain any component other than the (a), (b), (c) and (d).

Process for producing polymer

Process for producing polymer having hydroxyl groups at both terminals

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Suita, Japan

Kazuo Takei