Nissan Motor Company Limited

Nippon Oil Fats Co., Ltd.

Basf Coatings Ag

Shinto Paint Co., Ltd.

Naoya Sakai

Shosaku Yamamoto

Masayuki Takemoto

Katsuya Yamamoto

Tsuneo Sakauchi

Hitoshi Kimura

Hiroyuki Kishi

Yoshinobu Tamura

Akitoshi Shirasaka

Shinichi Inoue

Masahide Nagaoka

Eiji Fujimori

Shinichi Sakaniwa

Masaya Kawabata

Makoto Efumi

Michiaki Wake

Katsuaki Ishii

Colored metallic paint compositions and painted objects

A composite paint film coating formed on a steel sheet of an automotive vehicle body. The composite paint film coating is comprised of an electrodeposition paint film (I) coated on the steel sheet, and an intermediate paint film (II) coated on the first paint film. The electrodeposition paint film has a minimum melt viscosity not less than 0.2 during hardening. The electrodepositon paint film is formed of cathodic electrodeposition paint composition which includes a cationic thermosetting resin (1), and an already cross-linked particulate resin (2). The particlate resin is an addition-polymer formed between a fist compound (A) having at least two primary amino groups in a molecule, and a second compound (B) having at least two .alpha.,.beta.-ethylenic unsaturated groups. The particulate resin has an average particle size ranging from 0.01 to 1 .mu.m. The weight ratio ((2)/(1)) in solid content between the particulate resin (2) cationic thermosetting resin (1) is within a range from 0.03 to 0.15. The intermediate paint film (II) has hardening starting time ranging from 5 to 20 minutes.

Composite paint film coating

Growing community of inventors

Yokohama, Japan

Naoya Sakai