Mixtures of fatty acid ammonium salts with antifoaming and anticorrosion enhancing polyol fatty acids or salts thereof

US4719084A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Karl Schmid · Mettmann, DE
• Alfred Meffert · Monheim, DE
• Bert Gruber · Goldkronach, DE

Key dates

• Filing date: Mar 20, 1987
• Grant date: Jan 12, 1988
• Expiry date: Mar 20, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23F11/143
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Water-soluble corrosion-inhibiting mixtures containing PA0 (a) one or more ammonium salts of fatty acids corresponding to the following general formula ##STR1## in which n=1 or 2 while R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be the same or different and represent hydrogen, unbranched or branched C.sub.1 -C.sub.6 alkyl groups, C.sub.1 -C.sub.6 hydroxyalkylene groups or C.sub.1 -C.sub.8 aminoalkylene groups and R.sup.5 represents C.sub.6 -C.sub.10 alkyl groups, and PA0 (b) one or more polyol fatty acids and/or salts thereof corresponding to the following general formula ##STR2## in which R.sup.6 is a C.sub.1 -C.sub.19 alkyl or alkylene group and R.sup.7 represents an organic residue formed from a dihydroxy or polyhydroxy compound by elimination of a hydroxyl group, M.sup.(+) =H.sup.(+), Na.sup.(+), K.sup.(+) or an ammonium ion [R.sup.1 R.sup.2 R.sup.3 R.sup.4 N].sup.n +, as in formula (I), and m is an integer of from 0 to 18, and to a process for preparing these water-soluble mixtures and to the use of these mixtures for inhibiting corrosion in drilling oils, cutting oils, rolling oils, grinding oils, metal-cleaning solutions, coolants and lubricants.