申请人:Ciba-Geigy Corporation
公开号:US05176850A1
公开(公告)日:1993-01-05
The present invention provides a composition in contact with a corrodable metal surface, comprising a functional fluid and, as corrosion inhibitor, a compound having the formula 1A ##STR1## as well as salts or esters thereof, wherein R.sup.3 is C.sub.9 -C.sub.20 linear or branched alkyl, phenyl or C.sub.7 -C.sub.20 alkylphenyl; R.sup.4 is C.sub.1 -C.sub.3 alkyl; X is CH.sub.2, O or S; Y is O or S; and Z is--(CH.sub.2).sub.n -in which n is 1,2,3,4 or 5, or Z is--CH.sub.2 --CH(CH.sub.3)-.
本发明提供了一种与可腐蚀金属表面接触的组合物,包括功能性流体和作为缓蚀剂的化合物,该化合物具有式1A的结构式 ##STR1## 以及其盐或酯,其中R.sup.3是C.sub.9-C.sub.20线性或支链烷基、苯基或C.sub.7-C.sub.20烷基苯基;R.sup.4是C.sub.1-C.sub.3烷基;X是CH.sub.2、O或S;Y是O或S;Z是--(CH.sub.2).sub.n-其中n为1、2、3、4或5,或Z是--CH.sub.2--CH(CH.sub.3)-。