Idemitsu Kosan Company, Limited

Basf Se Corporation

Ciba Specialty Chemicals Corporation

Freshpoint Holdings S.a.

Thomas Raimann

Gerhard Wagenblast

Yuki Nakano

Heinz Wolleb

Masatoshi Saito

Thomas Schäfer

Thomas Schaefer

Annemarie Wolleb

Hideaki Nagashima

Yuichi Nishimae

Leonhard Feiler

Max Hügin

Flavio Luiz Benedito

Marc Maurer

Ute Heinemeyer

Thomas Eichenberger

André Fuchs

Bruno Inderbitzin

Husein Salman

Elena Tenetov

Julien Assous

Michell Groarke

Novel benzimidazolo[1,2-a]benzimidazoles carrying aryl- or heteroarylnitril groups, an electronic device, comprising said novel benzimidazolo[1,2-a]benzimidazoles carrying aryl- or heteroarylnitril groups, which is preferably an electroluminescent device, a charge transport layer, a charge/exciton blocker layer, or an emitting layer comprising said novel benzimidazolo[1,2-a]benzimidazoles carrying aryl- or heteroarylnitril groups, an apparatus selected from the group consisting of stationary visual display units; mobile visual display units; illumination units; key-boards; items of clothing; furniture; wallpaper, comprising said organic electronic device, or said charge transport layer, said charge/exciton blocker layer, or said emitting layer.

Benzimidazolo[1,2-A]benzimidazole carrying aryl- or arylnitril groups for organic light emitting diodes

The present invention relates to compounds of formula (I) which are characterized in that they are substituted by at least one nitrile substituted carbazolyl group and their use in electronic devices, especially electroluminescent devices. When used as electron transport material, hole blocking material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices. 

Dibenzofurans and dibenzothiophenes

The present invention relates to a photochromic ink, the process for its preparation which is based on a spiropyran powder obtainable by melting, cooling and crushing, and to a new form of a spiropyran obtainable thereby. Said process to prepare a photochromic ink comprises the steps of a) heating and melting the spiropyran at a temperature below 250 C, b) cooling the melt to obtain a solidified spiropyran, c) crushing the solidified spiropyran to obtain a powder, d) optionally adding the powder to a binder providing the basis for the photochromic ink.

Preparation of a photochromic ink

The present invention relates to azo dyes of formula (1) which are soluble in organic solvents, wherein Ris &#x2014;CN, &#x2014;COOR, &#x2014;CONRRor a heterocyclic ring, Ris unsubstituted or substituted alkyl, unsubstituted or substituted aryl, &#x2014;CF, &#x2014;COOR, &#x2014;CONRRor &#x2014;COR, Ris hydrogen, &#x2014;SOM, alkyl, alkoxy, alkylcarbonyl, &#x2014;NOor halogen, Ris substituted aryl, substituted heteroaryl or an aryl-N&#x2550;N-aryl radical, wherein one or both of the aryl radicals in aryl-N&#x2550;N-aryl is/are unsubstituted or substituted, or a radical heteroaryl-N&#x2550;N-heteroaryl, wherein one or both of the heteroaryl radicals in heteroaryl-N&#x2550;N-heteroaryl is/are unsubstituted or substituted, Ris hydrogen, alkyl or unsubstituted or substituted aryl, Ris hydrogen, alkyl or unsubstituted or substituted aryl, Ris hydrogen, alkyl or unsubstituted or substituted aryl, Mis a cation, n is a number 1, 2 or 3 and m is a number 1, 2 or 3, to a process for the preparation thereof and to the use thereof in the production of colored plastics or polymeric color particles, and as printing inks, printing dyes, coating compositions and wood stains 

Benzimidazole-pyridone-based azo dyes

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Sisseln, Switzerland

Thomas Raimann