Huels Aktiengesellschaft

Wolfgang Schroder

Klaus Kwetkat

Heinz-Werner Voges

Friedrich-Wilhelm Kupper

Thomas Keil

Klaus Jenni

Amphiphilic compounds with at least two hydrophilic and at least two

The invention relates to crosslinked castor oil derivatives which, as thickeners in liquid oils, give colorless and ageing-resistant oleogels and viscous oils even at low temperatures. The crosslinking species may be at least one of a di- or polycarboxylic acid, a olioisocyanate, and a oligoepoxide.

Crosslinked castor oil derivatives

The invention relates to a method of cyclooligomerization of 3-hydroxy-1-alkynes having 4-20 C atoms, particularly cyclooligomerization of 3-methyl-1-butyne-3-ol to yield 1,3,5-tris(.alpha.-hydroxyisopropyl)-benzene, with the aid of nickel-containing catalysts formed from a nickel compound, a phosphite of an ortho-substituted phenol, and an organoaluminum compound of formula

Method for the cyclooligomerization of 3-hydroxy-1 alkynes

Cyclohexane derivatives containing carboxyl groups with the general structure of formula (I): ##STR1## alone or in mixtures with one another, in which the substituents on the cyclohexane ring are in the 1-, 2-, and 4-positions, Z is a --CH.sub.2 --CH.sub.2 -- group or a ##STR2## group, R is an alkyl group with 1 to 10 carbon atoms, and n is an integer of 1 to 3, are obtained by the hydrocarboxyalkylation of 1,2,4-trivinylcyclohexane and are useful as monomers for the formation of polymers.

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Dorsten, Germany

Wolfgang Schroder