Kansai Paint Company, Ltd.

Toyota Jidosha Kabushiki Kaisha

Manabu Imose

Toshio Ohkoshi

Hiroki Takeda

Yoshinori Kato

Masahiro Nakamura

Masayoshi Harada

The present invention provides a composite powder coating composition obtained by granulating, with a liquid binder, a plurality of starting powder coating materials that are different from each other in hue and/or kind of base resin, and drying the granules, the liquid binder being a solution or dispersion of a binder compound having a softening temperature of 30 to 200&#xb0; C. and containing a self-crosslinkable functional group or groups and/or a functional group or groups that complementarily react with functional groups of the starting powder coating materials, in a solvent that does not dissolve the starting powder coating materials; production process therefor; and a method for color-matching a composite powder coating composition, the method comprising the steps of dry blending, for color matching, a plurality of starting powder coating materials having different hues, granulating the resulting blend by adding the above-mentioned liquid binder, and drying the granules.

Composite powder coating material, process for production thereof and method for the color matching of powder coating material

The present invention provides a method of forming a coating film on an aluminum substrate, comprising the steps of: (1) coating an aluminum substrate with a thermosetting polyester resin lustrous powder base coating composition (a) containing a lustrous material, and baking the resulting base coat layer; and (2) coating the base coat layer with a thermosetting acrylic resin clear powder coating composition (b), and baking the resulting clear coat layer to obtain a lustrous multilayer coating film.

Method of forming coating film on aluminum substrate

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Osaka, Japan

Manabu Imose