Basf Aktiengesellschaft

Ruger Schlund

Andreas Deckers

Wolfgang Rohde

Roger G Klimesch

Martin Lux

Ulrike Reissmann

Frank Edelmann

Catalyst systems which are suitable for the polymerization of olefinically unsaturated hydrocarbons contain, as active components,

Amidinato catalyst systems for the polymerization of olefins

Carboxyl-containing copolymers of ethylene are prepared by polymer-analogous pyrolytic ester cleavage of copolymers consisting of a) from 60 to 99.9 mol% of ethylene, b) from 0.1 to 40 mol% of C.sub.4 -C.sub.8 -tert-alkyl esters of copolymerizable C.sub.3 -C.sub.12 -carboxylic acids and c) from 0 to 20 mol% of further copolymerizable monomers by a method in which pyrolytic ester cleavage is carried out at from 150.degree. to 250.degree. C. in the presence of organic sulfonic acids, in the absence of a solvent and in the virtual absence of free radical initiators.

Preparation of carboxyl-containing copolymers of ethylene

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Ludwigshafen, Germany

Ruger Schlund