Use of alkenylsuccinic acid half-amides
AssigneeHoechst Aktiengesellschaft
InventorsGernot Kremer, Horst Lorke
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Abstract
Alkenylsuccinic acid half-amides of the formulae ##STR1## are used in water-containing and/or oil-containing formulations or metalworking liquids as anticorrosive agents and emulsifiers. In said formulae: A=C.sub.6 -C.sub.30 alkenyl, R=H or R.sup.1, R.sup.1 =--R.sub.2 --O--(CH.sub.2 CHR.sup.3 --O).sub.n H, R.sup.2 =C.sub.1 -C.sub.1 -C.sub.10 alkylene, R.sup.3 =--H or --CH.sub.3, n=0 to 50 and Me.sup..sym. is an alkali metal ion, a proton or an ammonium ion of the formula HN.sup..sym. R.sup.4 R.sup.5 R.sup.6, R.sup.4, R.sup.5 and R.sup.6, which are identical or different, being hydrogen, C.sub.1 -C.sub.6 alkyl or hydroxyalkyl or Me.sup..sym. is a mixture of an alkali metal ion and an ammonium ion of the above-mentioned formula.
Claims20
Metalworking aids comprising alkenysuccinic acid half-amides of at least one formula selected from the group consisting of ##STR5## and, optionally, cyclic imides of the formula ##STR6## in which formulae:
- A is C.sub.6 -C.sub.30 alkenyl and is linear or branched,
- R=H or R.sup.1,
- R.sup.1 =--R.sup.2 --O--(CH.sub.2 CHR.sup.3 --O).sub.n H, where R.sup.2 =C.sub.1 -C.sub.10 alkylene, R.sup.2 being linear or branched, R.sup.3 =--H or CH.sub.3 and n=0 to 50 and Me.sup..sym. is a mixture of an alkali metal ion and an ammonium ion of the formula HN.sup..sym. R.sup.4 R.sup.5 R.sup.6, R.sup.4, R.sup.5 and R.sup.6, which are identical or different, being hydrogen, C.sub.1 -C.sub.6 alkyl or hydroxy (C.sub.1 -C.sub.6) alkyl.
Dependencies are inferred from the claim text.