Hoechst Aktiengesellschaft

Rainer Helwerth

Horst Lorke

Horst Frohlich

Helmut Diery

Dieter Engel

Raimund Haas

Rudolf Ehrler

Max Grossmann

Reinhard D Onges

The present invention relates to succinimides of the formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are hydrogen, C.sub.1 -C.sub.24 -alkyl, C.sub.2 -C.sub.24 -alkenyl, C.sub.6 -C.sub.12 -cycloalkyl, C.sub.6 -C.sub.12 -cycloalkenyl, C.sub.6 -C.sub.12 -aryl, C.sub.1 -C.sub.24 -alkoxy, C.sub.1 -C.sub.24 -acyl, C.sub.1 -C.sub.24 -acyloxy, a hydroxyl, amino or sulfo group or a C.sub.1 -C.sub.24 -dialkylamino, C.sub.1 -C.sub.24 -acylamino, C.sub.1 -C.sub.24 -alkylsulfato, C.sub.1 -C.sub.24 -alkylsulfonato, C.sub.1 -C.sub.24 -alkylsulfito, C.sub.1 -C.sub.24 -alkylsulfinyl or C.sub.1 -C.sub.24 -alkoxycarbonyl radical, and R.sup.3 is a polyhydroxyalkyl radical of the formula ##STR2## in which R.sup.4 is --(CHOR.sup.7).sub.n --H, R.sup.5 is --(CHOR.sup.7).sub.m --H, R.sup.6 is --(CHOR.sup.7).sub.o --H where n+m+o is 2-6, and R.sup.7 is H or a carbohydrate attached in the form of a glycoside from the series comprising reducing sugars, a process for their preparation and their use.

Substituted Succinimides

Aqueous functional fluids, in particular hydraulic and metal-working fluids, containing a copolymer which is prepared by emulsion or solution copolymerization, initiated by free radicals, of unsaturated, copolymerizable monomers, the copolymers being built up from:

Aqueous functional fluids based on polymers

Water-soluble lubricant characterized by a content of compounds of the formula 1 ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.12 alkenyl, R.sub.1 is C.sub.1 -C.sub.18 alkyl or C.sub.2 -C.sub.18 alkenyl, A is a group of the formulae

Water-soluble lubricant

Anticorrosive agent stable to hard water, which comprises an alkali metal salt, alkaline earth metal salt, or amine salt of a compound of the formula ##STR1## in which R.sub.1 is branched C.sub.6 -C.sub.13 -alkyl or C.sub.5 - or C.sub.6 -cycloalkyl, or polycycloalkyl having from 6 to 13 carbon atoms optionally substituted by 1 or 2 C.sub.1 -C.sub.4 -alkyl groups,

Anticorrosive agent stable to hard water

Anticorrosive agent for aluminium and the alloys thereof consisting of

Anticorrosive agent for aluminium and aluminium alloys

Water-miscible corrosion inhibitors, substantially consisting of

Water miscible corrosion inhibitors

Aqueous metal working liquids containing a bis-sulfonamidocarboxylic acid of the formula ##SPC1## In the form of its water soluble or water dispersible salt with an alkali or an organic base, as corrosion protection and metal-working agent wherein R.sub.1 denotes hydrogen, halogen, alkyl and/or alkoxy of 1 to 3 carbon atoms, R.sub.2 denotes an alkylene radical having a total of 1 to 5 carbon atoms, and x denotes an integer of from 2 to 6.

Growing community of inventors

Eschborn, Germany

Rainer Helwerth