An anti-corrosive coating composition includes as an anti-corrosive pigment dispersed in a film-forming binder a salt of a polyvalent metal cation and an organic polyphosphonic acid containing at least 2 phosphonic acid groups. The ratio of polyvalent metal cations to phosphonate groups in the salt is at least 0.8/n:1, where n is the valency of the polyvalent metal ion.
申请公布号
US4501615(A)
申请公布日期
1985.02.26
申请号
US19830499456
申请日期
1983.05.31
申请人
INTERNATIONAL PAINT PUBLIC LIMITED COMPANY
发明人
REEDER, FRANK;NUNN, MICHAEL J.;MITCHELL, MICHAEL J.;BAXTER, KENNETH F.