Ineos Styrolution Group Gmbh

Bayer Aktiengesellschaft

Ec Erdolchemie Gmbh

Bp Koln Gmbh

Stefan Kaminsky

Gisbert Michels

Ulrich Jansen

Joachim Grub

Axel Gohrt

Frank Eisentraeger

Hans-Joachim Kramer

Nils Wittenberg

Alexander Gammersbach

Frank Eisenträger

Brian Schwegler

Fabian Rueter

Stephan Muller

Fabian RÜTER

The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a low residual moisture content after centrifugation. The invention further relates to a process for producing thermoplastic molding materials using the thus obtained ABS graft copolymers.

Process for producing ABS graft copolymers

The invention relates to a process for producing a stabilizer dispersion S, wherein the stabilizer dispersion is an aqueous composition comprising at least one phenolic stabilizer A, at least one thio co-stabilizer B, at least one surfactant C and at least one silicon oil component D. Further the present invention is directed to a process for producing a thermoplastic moulding composition, in particular an composition based on acrylonitrile butadiene styrene copolymers (ABS), using the stabilizer dispersion S.

Process for producing a stabilizer dispersion and process for producing a thermoplastic composition stabilized with the stabilizer dispersion

Tertiary alcohols can be prepared by the hydration of tertiary olefins having the same number of carbon atoms on an acidic ion exchanger using special structured multi-purpose packings for heterogeneous reactive rectification. An excellent yield and purity of the alcohol and an extended service life of the catalyst are achieved.

Process for the preparation of tertiary alcohols by the hydration of tertiary olefins in a reactive rectification using a structured multi-purpose packing

The invention relates to a process for preparing diisobutylene (DIB) from an i-butene-containing C raffinate I, in which the C stream is passed through a first hydroisomerization reactor (A) and a fractionation column (B) and is thus largely freed of 1-butene and 2-butene. It is subsequently dimerized over an acidic catalyst installed in a reactive column (E). The feed stream to this reactive column contains not only i-butene but also butanes which make the reaction temperature in the fixed bed controllable by removal of the heat of reaction. In the fractionation column (B), a side stream can be subjected to a further hydroisomerization in a reactor (C).

Process for the selective preparation of DIB from an i-butene-containing C4 stream

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Dormagen, Germany

Stefan Kaminsky