Kao Corporation

Akito Itoi

Isao Nishi

Kazuo Oki

Yasuo Ishii

Atsushi Hiraishi

Kazunari Takemura

Makoto Okubo

Shoichiro Harada

Mitsuru Sakai

Akihiro Koyama

Takahiro Yano

Yutaro Kinoshita

Nobumichi Kamiyoshi

Akira Takenaka

Shingo Tanaka

Yuki Wakabayashi

Tetsuya Ueno

Tatsuya Yamada

Kyoichi Shirota

Kazuo Kuwahara

Hiromi Nambu

Kunihiro Kano

Yukihiro Fukuyama

Toshio Sato

Kazuhiro Ishikawa

Yuri Nannichi

Hideki Goto

Taiki Fukuda

An aspect of the present disclosure relates to a dispersant for an electrode of a power storage device. The dispersant contains a repeating unit represented by the following general formula (1), where a, b, and c each represent a mole fraction, provided that a+b+c=1, and b and c satisfy the relationship expressed by 0.50<b+c≤1.00 and 0.50≤b/b+c)≤0.95. Ris preferably a branched alkyl group. Ris preferably an alkyl group with 1 to 12 carbon atoms, a saturated hydrocarbon group with 1 to 12 carbon atoms that includes an alicyclic hydrocarbon group, or a saturated hydrocarbon group with 1 to 12 carbon atoms that has a hydroxyl group.

Dispersant for power storage device electrode

An aspect of the present disclosure relates to a dispersant composition for an electrode of a power storage device. The dispersant composition contains an acrylic polymer (A), a compound (B) represented by the following formula (1), and an organic solvent (C). The acrylic polymer (A) contains a constitutional unit a represented by the following formula (3). In the formula (1), Rrepresents a group represented by the following formula (2), and Rrepresents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or —CHCH—OH. In the formula (2), R, R, R, and Rare the same or different and represent a hydrogen atom, a methyl group, or —CHOH.

Dispersant composition for electricity storage device electrodes

The present invention relates to a dispersant composition for carbon nanotubes, containing: a copolymer that includes a structural unit A represented by the following general formula (1) and a structural unit B represented by the following general formula (2); and a solvent, wherein the content of the structural unit B in all structural units of the copolymer is 20 mass % or more. In the following formulae, R, R, R, R, R, and Rare the same or different from each other and are each a hydrogen atom, a methyl group, or an ethyl group, Ris a hydrocarbon group having 16 to 30 carbon atoms, Ris a linear or branched alkylene group having 2 to 3 carbon atoms, Xis on oxygen atom or NH, Xis an oxygen atom, p is the number of 1 to 8, and Ris a hydrogen atom, a methyl group, or an ethyl group.

Dispersant composition for carbon nanotube

The present invention relates to a dispersant for a positive electrode of a power storage device. The dispersant is a copolymer that contains a constitutional unit A represented by the following general formula (1) and at least one constitutional unit B selected from the group consisting of a constitutional unit Brepresented by the following general formula (2) and a constitutional unit Brepresented by the following general formula (3). The total content of the constitutional unit A and the constitutional unit B in the copolymer is 80% by mass or more. The content of the constitutional unit A in all constitutional units of the copolymer is 35% by mass or more.

Dispersant for power storage device positive electrode

A liquid developer containing a resin binder, a colorant, a dispersant, and an insulating liquid, wherein the resin binder contains a resin having an acidic group, and wherein the dispersant contains a dispersant X having at least one basic nitrogen-containing group selected from the group consisting of an amino group, an imino group, a cyano group, an azo group, a diazo group, and an azide group, and wherein a melting point of the dispersant X is 34&#xb0; C. or higher; and a method for printing a fused image using the liquid developer. The liquid developer of the present invention is suitably used in development or the like of latent images formed in, for example, electrophotography, electrostatic recording method, electrostatic printing method or the like.

Liquid developer

The present invention provides a nonaqueous pigment dispersant containing a copolymer having: (a) a constituent unit derived from a nitrogen atom-containing polymerizable macromonomer having an ethylenic unsaturated double bond at one terminal, and (b) a constituent unit derived from a monomer unit having an ethylenic unsaturated double bond, being copolymerizable with the nitrogen atom-containing polymerizable macromonomer of constituent (a), and a pigment dispersion composition containing the dispersant, a pigment and a nonaqueous solvent.

Pigment dispersant containing a copolymer with constituent units derived from polymerizable macromonomers

Urethane foam for shoe soles

A polyester-polyol prepared by polycondensation of an acid component comprising terephthalic acid and adipic acid, and a polyhydric alcohol component, wherein the molar ratio of the terephthalic acid/adipic acid is 0.05 to 0.3; a process for preparing a polyurethane foam comprising reacting a polyisocyanate component and a polyol component, wherein the polyol component contains the above polyester-polyol; and a process for preparing a polyurethane foam comprising reacting an isocyanate prepolymer made of a polyisocyanate component and a polyol component (I) with a polyol component (II), wherein the polyol component (I) comprises the above polyester-polyol.

Process for preparing polyurethane foam

A developer additive selected from the group consisting of compounds represented by the general formulas (1) to (5): ##STR1## a toner composition having excellent fixing properties and improved pulverizability which comprises the developer additive, a binder resin and a colorant and a developer composition having excellent toner-fixing properties which comprises the developer additive, a binder resin and a colorant.

Developer additive, toner and developer composition

A process for producing a polyester film having a high strength and a high modulus of elasticity, which includes preparing a polyester resin composition comprising, adding to a polyester resin, 0.1 to 10 parts by weight, based on 100 parts by weight of the polyester resin, of an additive compound selected from the group consisting of compounds represented by the general formula (I): ##STR1## and compounds represented by the following general formula (II): ##STR2## and subjecting the resin composition to monoaxial or biaxial stretching.

Process for producing polyester film

A new melt viscosity depressant for a polyester resin having a structure of an aromatic carbonyl compound is disclosed. Addition of the melt viscosity depressant to a polyester resin reduces the melt viscosity of the resin remarkably, thereby facilitating mold processing and melt-spinning of the polyester resin composition, from which high strength polyester molding products and polyester fibers can be obtained.

Melt viscosity depressant for polyester resin and polyester resin

A cationic dye-dyeable polyester resin composition comprising a cationic dye-dyeable polyester resin and a melt viscosity depressant. Addition of the melt viscosity depressant to the cationic dye-dyeable polyester resin reduces the melt viscosity of the resin without decreasing the intrinsic viscosity thereby making the resin melt-spinnable. A cationic dye-dyeable polyester fiber with high strength can be obtained from the polyester resin composition.

Growing community of inventors

Wakayama, Japan

Akito Itoi