Kansai Paint Company, Ltd.

Toyota Jidosha Kabushiki Kaisha

Tadayoshi Hiraki

Akira Tominaga

Takeshi Yawata

Tadashi Watanabe

Shigeo Nishiguchi

Masafumi Kume

Koji Kamikado

Haruo Nagaoka

Komaharu Matsui

Reiziro Nishida

Shinji Sugiura

Yasuhiro Fujii

Osamu Iwase

Eisaku Nakatani

Kenji Yamamoto

Teiji Katayama

Ichiro Tabushi

Takashi Udagawa

Kiyoshi Kato

Fumiaki Nakao

Hirosi Oosumimoto

Hidehiko Haneishi

Yasuyuki Hirata

Katsuhisa Sugisaki

Yoichi Masubuchi

Masaharu Shimoda

Terukazu Shibata

Yoshio Yasuoka

Takeo Ohtani

Naoko Kasahara

Haruhiko Kataoka

Masato Yamamoto

A coated article is obtained by electrodeposition coating using an electrodeposition coating composition, which comprises: (A) a resin component obtained by reacting an epoxy resin, an amino compound and/or a phenolic compound; (B) a resin component having a specific structural unit; (C) a blocked polyisocyanate compound; and (D) at least one rust inhibiting component selected from the group consisting of metal ions selected from zirconium, titanium, cobalt, vanadium, tungsten and molybdenum, oxymetal ions of the metal, and fluorometal ions of the metal.

Electrodeposition coating composition, coating method and coated article

A multi-layer electrodeposition coating film-forming method which comprises subjecting a cationic electrodeposition coating composition containing at least two emulsions to an electrodeposition coating, said cationic electrodeposition coating composition being such that a difference in an electrical quantity (a) required for deposition starting between a first coating composition comprising a first emulsion and a second coating composition comprising a second emulsion in two emulsions selected from the at least two emulsions is in the range of 50 to 400 C/m.

Multi-layer electrodeposition coating film-forming method and coating product formed by the same

The present invention provides a plastic-coated metal plate for an automobile exterior plate which is a laminate metal plate coated on both faces or one face of the metal plate with a plastic layer, wherein the plastic layer has a surface tension of at least 30 mN/m, an elongation percentage of at least 30% at a tensile rate of 20 mm/minute/20&#xb0; C. and a rupture strength of at least 600 kg/cmat a tensile rate of 20 mm/minute/20&#xb0; C., and a part for a major external face side in a car body, wherein the above plastic-coated metal plate is cut, molded and joined to form the part for a major external face side in a car body, and a metal-exposed part thereof is coated by electrodeposition.

Plastic-coated metal plate for car body

The present invention provides a plastics-covered metal plate excellent in chipping resistance, corrosion resistance etc. made by covering one surface or both surfaces of a metal plate with at least two kinds of plastics layers whose rates of elongation are different and a process of covering a car body by using said covered metal plate.

Plastics-covered metal plate for car

The present invention relates to parts for car body comprising plastic-covered metallic material prepared by sticking a plastic film having a topcoat finishing property on one side or both sides of a molded and electrodeposition coated metallic material and to a coat-finishing process of a car body by using said parts for car body.

Parts for car body

The present invention provides a plastic-coated metal plate prepared by sticking a plastic layer on one face or both faces of a metal plate via a coating film of a thermosetting adhesive comprising an amine-added epoxy resin (A) and a polyisocyanate compound (B), which is excellent in a corrosion resistance, an adhesive property and a finishing property and which is particularly useful for forming a car body.

Plastic-coated metal plate

This invention relates to cationic electro-coating composition which comprises blending which an aqueous dispersion or an aqueous dispersion paste which contains an organic acid-modified bismuth compound in a non-water-soluble state, and which is obtained by mixing and grinding a bismuth compound and an organic acid in an aqueous medium. Said cationic electro-coating composition, although containing no lead compounds, is capable of forming an electrocoated film which is excellent in corrosion resistance, appearance, etc.

Cationic electrodeposition paint composition

The present invention provides a plastic-coated metal plate for an automobile exterior plate which is a laminate metal plate coated on both faces or one face of the metal plate with a plastic layer, wherein the plastic layer has a surface tension of at least 30 mN/m, an elongation percentage of at least 30% at a tensile rate of 20 mm/minute/20&deg; C. and a rupture strength of at least 600 kg/cm at a tensile rate of 20 mm/minute/20&deg; C., and a part for a major external face side in a car body, wherein the above plastic-coated metal plate is cut, molded and joined to form the part for a major external face side in a car body, and a metal-exposed part thereof is coated by electrodeposition.

The present invention provides a cationic coating composition capable of forming a coating film which is excellent in a corrosion resistance and an adhesive property and an electrodepositably coating property toward a rust preventive steel plate (zinc-plated steel plate). The cationic coating composition described above comprises as a vehicle component, a polyol-modified, amino group-containing epoxy resin prepared by reacting an epoxy resin (A) having an epoxy equivalent of 180 to 2500 with a polyol compound (B) obtained by adding caprolactone to a compound having plural active hydrogen groups and an amino group-containing compound (C).

Cationic coating composition

Cationic resin composition

This invention provides a car body coating process wherein the metal-exposed portion of a shell body, a part or whole of which has been made of plastics-covered metal plates, is electrocoated with use of an electrodeposition paint which contains no coloring pigment and has a bath solid content of at most 10% by weight and which is capable of forming a clear coating film.

Car body coating process

A car body coating process of forming a shell body using a metal plate covered with a preformed film or shield to the main outer portions of a car body, or forming a shell body equipping car parts, which have been made by cutting, molding and joining a plastics-covered metal plate for the main outer portions of a car body, to a previously assembled main body of a car body, and then coating the exposed metal portion in the shell body by electrodeposition.

There is disclosed a cationic electrodeposition coating composition containing bismuth lactate derived from a lactic acid, whose L-isomer content is at least 80% by weight, or bismuth methoxyacetate in a form of being dissolved in an aqueous medium. The electrodeposition coating composition can form a coating film having excellent anticorrosivity and finishing property without containing a lead compound.

Cationic electrodeposition coating composition

A cationically electrodepositable finely divided gelled polymer obtained by, in the first step, emulsion polymerizing (A) a monomer component comprising

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Odawara, Japan

Tadayoshi Hiraki