Jsr Corporation

Eneos Materials Corporation

Shingo Itai

Yoshikazu Yamaguchi

Takayoshi Tanabe

Tatsuya Abe

Daisuke Sukeguchi

Satoshi Futami

Taira Ohashi

Motohisa Azechi

Masashi Iida

Keigo Aso

A binder for an all-solid-state secondary battery that can control a decrease in ionic conductivity, is excellent in binding properties and oxidation resistance, and can realize favorable cycle life characteristics even under a high voltage; and a binder composition for an all-solid-state secondary battery containing the binder. A binder for an all-solid-state secondary battery includes a polymer (A) which includes a repeating unit (a1) derived from an unsaturated carboxylic acid ester (excluding an unsaturated carboxylic acid ester having a hydroxyl group) and a repeating unit (a2) derived from a compound having a tertiary amino group, a weight-average molecular weight (Mw) of the polymer (A) being from 250000 to 3000000, and an endothermic peak being observed at −10° C. or lower when differential scanning calorimetry (DSC) is performed on the polymer (A) in accordance with JIS K 7121.

All-solid-state secondary battery using polymer binder made from unsaturated carboxylic acid ester not having hydroxyl groups and compound having a teriary amine group and method of manufacturing same

To provide a UV-curable resin composition useful for forming optical parts such as optical lenses. A radiation-curable resin composition for optical parts, comprising (A) 5&#x2013;70 wt % of urethane (meth)acrylate, (B) 0.1&#x2013;70 wt % of benzyl (meth)acrylate, and (C) 10&#x2013;70 wt % of an ethylenically unsaturated group-containing compound other than the components (A) and (B).

Radiation-curable resin composition for forming optical part and optical part

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Tokyo, Japan

Shingo Itai