Kansai Paint Company, Ltd.

Satoru Ito

Shinji Sugiura

Tadashi Watanabe

Noboru Nakai

Osamu Isozaki

Akira Kasari

Shigeru Nakamura

Seiji Takami

Hiroshi Igarashi

Motoshi Yabuta

Yasumasa Okumura

Satoshi Ikushima

Chikara Kawamura

Haruhiko Aida

Kenji Yamamoto

Masaaki Saika

Chicara Kawamura

Takao Matoba

Noboru Takoh

Kotaro Morimoto

Hiroyuki Okada

The invention provides a coating composition comprising (A) a vinyl resin having a structure of 2-(2'-hydroxyphenyl)-benzotriazole in the resin skeleton and (B) a crosslinking agent, and a coating method using the coating composition. The coating composition of the invention is capable of forming coating films which are improved in acid resistance, weatherability and other properties without impairment of finished appearance and processability.

Coating composition and coating method

An object of the present invention is to provide a heat-curable high solid coating composition capable of forming a coating film which is excellent in both acid resistance and scratch resistance, and a method for forming a topcoat using said composition. The present invention provides a heat-curable high solid coating composition comprising:

High solid coating composition and method for forming topcoat using same

The invention relates to a curable coating composition comprising:

Hydroxyl-containing polyester, polyepoxide and silicon compound

A method for forming a coating film by sequentially forming a pigmented base coat and a clear top coat on a substrate. The pigmented base coat composition includes (1) an OH-containing resin, (2) an amino resin, (3) a polyorganosiloxane resin a number average molecule weight of at least 1,000 and having at least two groups per molecule selected from a silanol group and an alkoxysilane group and (4) a flaky metal or a mica powder in (5) an organic solvent. The clear top coat composition includes (1) an OH- and epoxy-containing base resin which additionally contains at least one of a silanol group and a hydrolyzable group bound directly to a silicon atom, (2) a curing catalyst and (3) an organic solvent.

Method of forming coating films

Coating composition comprising particles of an emulsion polymerized

The invention provides a method of forming a coating film by forming in sequence a pigmented base coat and a clear top coat on a substrate followed by finishing by the two-coat one-bake technique, the method being characterized by using, as a coating composition for pigmented base coat formation, a composition comprising, as essential components thereof, (1) an OH-containing resin, (2) an amino resin, (3) a polyorganosiloxane (4) a flaky metal powder and/or a mica powder, and ( 5 ) an organic solvent, and using, as a coating composition for clear top coat formation, a composition comprising, as essential components thereof, (1) an OH-containing base resin which further contains at least one group selected from the class consisting of a silanol group and a hydrolyzable group bound directly to a silicon atom, ( 2 ) an amino resin, and ( 3 ) an organic solvent.

Disclosed is a composition curable at a low temperature and characterized in that the composition comprises:

Composition curable at low temperature

Disclosed is a resin composition curable at a low temperature and characterized in that the composition comprises:

Resin composition curable at low temperature

A process for forming a metallic paint film comprising

Metallic painting

In a method for applying a metallic finish coat to a substrate which comprises applying a base coat composed of a metallic paint containing a thermosetting resin as a film-forming ingredient to a substrate, applying a top coat composed of a clear paint containing a thermosetting resin as a film-forming ingredient to the surface of the base coat, and heating both the base coat and top coat to cure them, the improvement wherein the film-forming ingredient of the clear paint in the top coat comprises (A) an acrylic resin having a number average molecular weight of 5,000 to 15,000 and a glass transition temperature of from 5.degree. to 35.degree. C. obtained by copolymerizing (a) 42 to 90 parts by weight of at least one methacrylate selected from alkyl methacrylates with the alkyl moiety having 4 to 18 carbon atoms and (b) 10 to 58 parts by weight of a monomer having an ethylenically unsaturated bond and a hydroxyl group in the molecule, the total amount of components (a) and (b) being 100 parts by weight, and (B) an aminoaldehyde resin, the weight ratio of the acrylic resin (A) to the aminoaldehyde resin (B) being from 80:20 to 65:35.

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Kanagawa, Japan

Satoru Ito