Use of dithiophosphinic acid and/or its salts for producing anti-corrosion coatings that are devoid of chrome
申请人:BASF SE
公开号:US10472525B2
公开(公告)日:2019-11-12
Use of dithiophosphinic acids of the general formula HS2P(R1)(R2) and/or salts thereof for producing chrome-free, polymer-containing corrosion control layers on metallic surfaces, R1 and R2 independently of one another each being organic radicals having 1 to 30 C atoms.