Toyo Aluminium Kabushiki Kaisha

Toyo Aluminium K.k.

Satosi Kobayashi

Yoshiki Hashizume

Katsunobu Kubo

Takefumi Aoki

Michitaka Hanibuchi

A colored metallic pigment of the present invention contains a metallic pigment, a coloring pigment, a first compound and a second compound. The coloring pigment adheres to the surface of the metallic pigment in the coexistence of the first compound and the second compound, the first compound is a compound having two or more carboxyl groups, and the second compound is a compound having one or more amino groups.

Colored metallic pigment and colored article

Colored substrate particles which are mainly used in metallic finish of automobiles, domestic electrical articles, tools and the like, decorative finish of plastics, printing ink and the like are disclosed herein. According to the present invention, adhesive property of a color pigment to substrate particles is improved by coating the surface of the color pigment with a specific surface-treatment agent. The colored substrate particles are preferably coated with a polymer polymerized by in situ polymerization, thereby the adhesion of the color pigment to the substrate particles can be further improved.

Surface-treated color pigment, colored substrate particles and

A colored titanium flake having a flat, smooth surface, the flake including a coherent oxide layer formed on its surface, and the thickness of the coherent oxide layer being 100 to 1000 .ANG., a process for preparing the colored titanium flakes and a resin composition containing the colored titanium flakes.

Growing community of inventors

Kobe, Japan

Satosi Kobayashi