Solvay Sa

Solvay (societe Anonyme)

Veronique Mathieu

Francine Janssens

Wieslaw Adam Mazur

Jonathan Maunoury

Victor Dmitrievich Sorokin

Roland Martin

Praveen Bachawala

The present invention relates to a host material comprising a compound having two carbazole moieties which is suitable for blue-emitting OLEDs. Surprisingly, it has been found that when appropriate substituents are present in the carbazole structure, the solubility of the compounds can be improved without any adverse effect on the OLED performance. The present invention further relates to the use of the host materials and to an organic light emitting device comprising the host material.

Host material for light-emitting diodes

A telomerisation process is described whereby haloalkanes like tetrachloromethane are added to halogenated olefins like 2-chloroprop-1-ene in the presence of an iron catalyst and a phosphite. The reaction products, e.g. 1,1,1,3,3-pentachlorobutane, can be fluorinated.

Process for the preparation of halogenated hydrocarbons with at least 3 carbon atoms in the presence of iron and a phosphite

Method of manufacture of a hydrofluoroalkane comprising the use of a Lewis base as stabilizer of the hydrofluoroalkane. No drawings.

Method of manufacture of a hydrofluoroalkane

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Wavre, Belgium

Veronique Mathieu