Mitsui Chemicals, Inc.

Yoshihiko Tomita

Tsuyoshi Matsumoto

Kenichi Suzuki

Toshihiro Yoshimura

Gen Miyata

Masaya Kusumoto

Yoshihisa Kawakami

Taro Ichikawa

Yasuyuki Kagawa

Atsuko Tachibana

Yu Iimuro

Wengon Yah

Tadashi Ishida

Daisuke Sugawara

The invention of the present application addresses the problem of providing a binder for electrochemical cells which exhibits sufficient adhesive properties with respect to collectors and active materials, which is electrochemically stable, which is not readily swelled by electrolytes, and with which battery cycle characteristic can be sufficiently improved. Accordingly, provided is a binder for electrochemical cells which comprises a polyolefin copolymer (A) including structural units derived from an olefin, and structural units derived from (meth)acrylic acid. The carboxylic acid included in the structural units derived from the (meth)acrylic acid is neutralized by at least one non-volatile alkali compound and at least one volatile alkali compound.

Binder for electrochemical cells, paste for electrochemical cells, and method for producing electrode for electrochemical cells

It is an object of the present invention to obtain crimped conjugated fibers having excellent crimp properties. The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration, wherein a cross section of the fiber includes at least two portions: a portion (a) and a portion (b); the portion (a) includes an olefin polymer (A) and the portion (b) includes an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw, melting point and MFR; and a specific fatty acid amide is added to the olefin polymer (A) and/or the olefin polymer (B). The present invention also provides a non-woven fabric including said crimped conjugated fiber.

Crimped conjugated fiber and non-woven fabric comprising the fiber

An ink jet recording medium which is excellent in ink absorptivity, color density, gloss, water resistance, light fastness and yellowing resistance, in particular, ink absorptivity, color density, light fastness and yellowing resistance. The ink jet recording medium comprises at least one ink receptive layer containing polymeric organic particles provided on a support, wherein the polymeric organic particles have a glass transition temperature (Tg) of 40&#xb0; C. or higher and are amphoteric polymeric organic particles having both of the functional groups of a cationic group and an anionic group on the surface thereof.

Ink jet recording medium

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Sodegaura, Japan

Yoshihiko Tomita