Basf Se Corporation

Ciba Specialty Chemicals Corporation

Preetam Ghogale

Paul A Odorisio

Stephen Mark Andrews

Junichi Tanabe

Hidetaka Oka

Thomas Friend Thompson

Si Wu

Deepak Rane

Paragkumar Thanki

Jianzhao Wang

Suhas Dattatraya Sahasrabudhe

Ramachandra V Joshi

Sanjoy Lahiri

Dhaval Vashi

Paul Angelo Odorisio

Paragkumar Nathalal Thanki

The present invention relates to electroluminescent devices that comprise organic layers that contain triazole compounds of the formula (I), or formula (II). The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens.

Electroluminescent device

Disclosed is a method for the preparation of a polyester, which method comprises in a first step, reacting a dicarboxylic acid or a C-Cdicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester, where a metal phosphonic acid complex compound of the formula is employed in the first step, in the second step or in both the first and second steps as a reaction catalyst.

Process for producing polyester with metal phosphonic acid complex catalysts

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Mumbai, India

Preetam Ghogale