Patent Number: 6,309,477

Title: Non-chromium pretreatment chemicals

Abstract: The present invention is relates to pretreatment chemicals metal materials to be painted containing at least one kind of sulfur-containing compounds and at least one of phosphorus ion-containing compounds, and an anticorrosive treatment of metal materials, by the pretreatment chemicals.

Inventors: Shimakura; Toshiaki (Chiba-ken, JP), Wada; Yutaka (Osaka-fu, JP), Fukuoka; Takayuki (Osaka-fu, JP)

Assignee: Nippon Paint Co., Ltd.

International Classification: C23C 22/62 (20060101); C23C 22/66 (20060101); C23C 22/08 (20060101); C23C 22/10 (20060101); C23C 22/50 (20060101); C23C 22/23 (20060101); C23C 22/60 (20060101); C23C 22/53 (20060101); C23C 22/56 (20060101); C23C 22/05 (20060101); C23C 022/07 ()

Expiration Date: 10/30/2018