TREATMENT AGENT FOR FORMING ANTICORROSION FILM UTILIZING CROSSLINKED TANNIN, ANTICORROSION FILM FORMING METHOD, AND ANTICORROSION TREATED METAL

摘要

PROBLEM TO BE SOLVED: To provide a treatment agent for forming an anticorrosion film utilizing crosslinked tannin capable of forming a film having excellent anticorrosion performance on the surface of a metal substrate by single immersing treatment without using a harmful chromium compound.;SOLUTION: Using amine selected from the group consisting of polyamine such as diamine, triamine, tetramine, dendrimer and polyethyleneimine, modified proteins such as casein, gelatin and collagen peptide, and protein hydrolyzates, crosslinking treatment for tannin is performed, and a metal substrate is immersed into a treatment agent comprising the crosslinking-treated composition as an anticorrosive component for one time.;COPYRIGHT: (C)2008,JPO&INPIT