Fujifilm Wako Pure Chemical Corporation

Rhombic Corporation

Masahiro Takano

Taeyeon Kim

Yukihiko Shida

Kazuki Takimoto

Kei Kawano

Masayuki Tomida

Tomoyuki Mori

Tatsuhiko Kimura

Yosuke Suzuki

Kaho Mori

Tomotaka Totsuka

An object of the present invention is to provide a binder which exhibits excellent dispersibility of a conductive assistant; a slurry composition and an electrode, each of which uses this binder; and an electricity storage device which is provided with this electrode. The present invention relates to a binder for an electricity storage device, in which a loss tangent tan &#x3b4; in a linear region of an aqueous dispersion liquid of 0.5% by mass of the binder and 4.6% by mass of a conductive assistant satisfies tan &#x3b4;&#x3e;1 in a strain dispersion measurement under measurement conditions of a measurement temperature of 25&#xb0; C. and a frequency of 1 Hz, and the conductive assistant is an acetylene black having an average particle diameter of 30 nm or more and 40 nm or less and a specific surface area of 65 m/g or more and 70 m/g or less; a slurry composition and an electrode, each of which uses this binder; an electricity storage device which is provided with this electrode; and the like.

Binder for electricity storage devices improving dispersibility of conductive assistant

The present invention relates to: (1) a graft polymer that has a polyolefin (A) as the main chain, and a polymer (B) polymerized a dye (b) having a radical reactive functional group, in a side chain; (2) the graft polymer which is characterized in that the dye (b) having the radical reactive functional group is a cationic rhodamine derivative, a cationic triarylmethane-type dye derivative or a cationic cyanine-type dye derivative, having an ethylenically unsaturated group; (3) a colored resin consisting of the graft polymer; as well as (4) a method for producing the colored resin, which is characterized by mixing the polyolefin (A), the dye (b) having the radical reactive functional group, and the radical reaction initiator (C), and subjecting a radical reaction of the mixture; and the like.

Graft polymer, resin colored matter, method for producing same, and resin composition containing resin colored matter

The present invention is to provide a colored composition having higher heat resistance compared with conventional colored compositions. The present invention further relates to: 'a polymer having a monomer unit derived from a monomer which has (i) a cationic rhodamine derivative having, as an counter anion, an anion including an aryl group having an electron-withdrawing substituent and an anion group and (ii) an ethylenically unsaturated bond', 'a monomer which has (i) a cationic rhodamine derivative having, as an counter anion, an anion including an aryl group having an electron-withdrawing substituent and an anion group and (ii) an ethylenically unsaturated bond', &#x201c;a colored composition comprising the above-described polymer or the monomer&#x201d;, and &#x201c;a colored composition for a color filter comprising the above-described polymer or the monomer&#x201d;.

Colored composition

Growing community of inventors

Kawagoe, Japan

Masahiro Takano