Pi R&d Co., Ltd.

Top Material Co., Ltd.

Shuzo Waki

Maw Soe Win

Toshiyuki Goshima

Yoshikazu Nishikawa

Sigemasa Segawa

Eika Kyo

Seung Joon Hong

Whan Jin Roh

Shintaro Nakajima

Tetsuaki Suzuki

Provided are a binder resin for an electrode of a lithium secondary battery containing a solvent-soluble polyimide having a repeating unit represented by the following Formula [I], and a method of producing the binder resin for an electrode.  (In the formula, Z represents an aromatic or alicyclic tetracarboxylic dianhydride residue, and Ar is an aromatic diamine residue having a carboxyl group and an aromatic diamine residue having an aromatic ether bond, or an aromatic diamine residue having a phenylindan structure).

Binder resin for lithium secondary battery electrode, electrode for lithium secondary battery, and lithium secondary battery

Disclosed is a photosensitive ink which can form a coated film that is excellent in insulation properties, heat resistance, low warping, low elasticity and adhesion with the substrate, when used as an ink for screen printing, and with which clogging of the screen, bleeding, blur, chipping and the like are unlikely to occur even when the screen printing is repeatedly carried out, so that which has an excellent ease of handling in printing. The ink composition comprises 100 parts by weight of an organic solvent-soluble polyimide block copolymer(s), and 1 to 100 parts by weight of a photoacid generator(s). The polyimide block copolymer(s) and the photoacid generator(s) are dissolved in an organic solvent. The polyimide block copolymer(s) contain(s) in its molecular skeleton a diamine having a siloxane bond, and an aromatic diamine having a hydroxyl group(s) and/or carboxyl group(s) at ortho-position with respect to an amino group.

Photosensitive ink composition for screen printing and method of forming positive relief pattern with use thereof

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Yokohama, Japan

Shuzo Waki