Peter Dr Hennenberger

TL;DR: In this paper, a cycle-stream process for the continuous preparation of finely divided homopolymers and copolymers of ethene by catalytic polymerization in a circular tube reactor using a liquid alkane as reaction medium is described.

TL;DR: In this article, a process for the continuous preparation of ethylene-alpha-olefin copolymers by catalytic dry-phase copolymerisation of the monomers in a stirred or fluidised polymerisation zone, transfer of the resultant mixture of solid copolym and unreacted gaseous monomers into a decompression zone, reduction of the pressure of the mixture, separation of the mixtures into a Gaseous phase and a solid phase, the solid phase being pre-flushed continuously with gas, and subsequently being flushed with a mixture of nitrogen and steam,

TL;DR: In this article, the antistatic agent is a salt mixture of (1) the calcium salt of medialanic acid and (2) the chromium salt of N-stearylanthranilic acid.

TL;DR: In this article, dry-phase copolymerization of the monomers in a stirred or fluidized polymerization zone, transfer of the resulting mixture of solid copolymers and unconverted gaseous monomer into a let-down zone and separation of the mixture, after pressure reduction, into a gas phase and a solid phase, by a continuous process in which the solid phase is continuously flushed beforehand with gaseus ethylene and then flushed with a mixture of nitrogen and steam.