Dic Corporation

Dainippon Ink and Chemicals, Incorporated

Kenji Nagao

Kazunori Tanaka

Masato Inoue

Masatoshi Matsuo

Yutaka Hashimoto

Mitsuru Kitada

Sadamu Nagahama

Chisato Kuriyama

Fuchih Li

To provide a fiber bundling agent containing: a vinyl ester resin (A) having an alkoxy polyoxyalkylene structure, a urethane bond, a (meth)acryloyl group, and an epoxy group; and an aqueous medium, in which the vinyl ester resin (A) has an epoxy equivalent of 3,500 g/eq to 11,000 g/eq. Since the fiber bundling agent is excellent in bundling properties and in interfacial shear strength between fiber resins, the fiber bundling agent is suitably used for production of a fiber material capable of imparting excellent strength to a molded product.

Fiber bundling agent, fiber material, forming material, and formed product

Provided is a fiber sizing agent including a vinyl ester resin (A), an epoxy compound (B), and an aqueous medium. The vinyl ester resin (A) has an alkoxy polyoxyalkylene structure and a urethane linkage. The fiber sizing agent exhibits excellent binding ability for various fibers, such as glass fibers and carbon fibers. Molded articles produced from a molding material including the fiber sizing agent have various excellent physical properties, and examples of the physical properties include flexural strength, compressive strength, and interlaminar shear strength. Accordingly, the molded articles can be used, for example, in automotive parts, aircraft parts, windmill parts, industrial parts, and the like.

Fiber sizing agent, fiber material, molding material, and molded article

A fiber sizing agent includes: a vinyl ester resin (A) having an alkoxy polyoxyalkylene structure and a urethane bond; and an aqueous medium. The fiber sizing agent has excellent fiber sizing properties for various fibers such as glass fibers and carbon fibers. A molded article obtained from a molding material including the fiber sizing agent is excellent in various physical properties such as bending strength, compressive strength, and interlaminar shear strength, and thus can be used, for example, for an automobile member, an aircraft member, a windmill member, and an industrial member.

Fiber sizing agent, fiber material, molding material and molding

Provided is an aqueous resin composition in which a vinyl ester resin and a urethane resin having an aromatic ring are dispersed in an aqueous medium, in which the vinyl ester resin is obtained by allowing at least one epoxy resin selected from the group consisting of a novolak type epoxy resin and a bisphenol type epoxy resin to react with a compound having an acid group and a polymerizable unsaturated group, and the urethane resin is obtained by allowing polyol containing polyol having an aromatic ring and polyol having a hydrophilic group to react with a polyisocyanate. A primer using the aqueous resin composition is able to considerably improve adhesiveness between a substrate and a cured coating film of an active energy ray curable composition, even when the substrate is a sparingly adhesive substrate.

Aqueous resin composition, laminate produced using same, and image display device

A cationic polyurethane resin aqueous dispersion wherein a cationic polyurethane resin (B) including a structural unit (A) represented by the following general formula (I) is dispersed in aqueous medium, and the content of a cationic amino group of the structural unit (A) in the cationic polyurethane resin (B) is 0.005 to 1.5 equivalents/kg. (In the formula, Rrepresents an alkylene group which may include an alicyclic structure, a residue of bivalent phenol or polyoxyalkylene group, Rand Reach independently represents an alkyl group which may include an alicyclic structure, and Rrepresents a hydrogen atom or a residue of the quaternizing agent which is introduced by the quaternizing reaction, and Xrepresents an anionic counter ion.)

Cationic polyurethane resin aqueous dispersion, ink-jet receiving agent including the same, and ink-jet recording medium using the same

A cationic polyurethane resin aqueous dispersion wherein a cationic polyurethane resin (B) including a structural unit (A) represented by the following general formula (I) is dispersed in aqueous medium, and the content of a cationic amino group of the structural unit (A) in the cationic polyurethane resin (B) is 0.005 to 1.5 equivalents/kg. (In the formula, R, represents an alkylene group which may include an alicyclic structure, a residue of bivalent phenol or polyoxyalkylene group, Rand Reach independently represents an alkyl group which may include an alicyclic structure, and Rrepresents a hydrogen atom or a residue of the quaternizing agent which is introduced by the quaternizing reaction, and Xrepresents an anionic counter ion.)

A fire extinguishing composition is provided which, when compared with conventional fire extinguishing compositions, displays superior rapid fire extinguishing performance, flame resistance, fuel resistance and reignition prevention for both non-polar solvent fires and polar solvent fires, and also displays superior stability as a diluted solution. The fire extinguishing composition comprises a cationic polyamine based high molecular weight compound (A) which incorporates primary, secondary, and tertiary cationic groups within each molecule, and the primary cationic groups account for no more than 40% by weight of all the cationic groups.

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Nara, Japan

Kenji Nagao