Enichimica S.p.a.

Enichem S.p.a

Irena Penczek

Jan Bialy

Wlodzimierz Mista

Jolanta Cmielowska

Nikuca Kopytowska

Hanna Grabowska

Zbingniew Dobkowski

Josef Wrzyszcz

Stanislaw Maczenski

Kazimierz Mazur

Wanda Kosinska

Dorota Grzelak

Marek Borensztajn

Wlodzimierz Kaczmarczyk

Thermally stable compositions, also showing high fluidity in the molten state comprise polyphenylene oxide, or a mixture of polyphenylene oxide with a styrene polymer, and a stabilizer system consisting of 2,4-bis(n-octylthio)-6-(4-hydroxy-3,5-di-tert.butylanilino)-1,3,5-triazine and dilauryl thiopropanoate.

Compositions of polyphenylene oxide or of mixtures of polyphenylene

Process for the production of polyphenyleneoxide, in which:

Process for the production of polyphenylene-oxide

Preparation of alkylation catalysts containing iron oxide and/or chromium oxide, by means of a process which comprises:

Process for preparing alkylation catalysts

Process for the production of polyphenylene oxide by means of the oxidative polymerization of 2,6-xylenol, with either oxygen or a gas containing molecular oxygen, in the presence of a catalyst, by continuously operating in a circulation system, and with the precipitation of the polymer in the liquid reaction medium.

Process for the production of polyphenylene oxide

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Irena Penczek