Basf Se Corporation

Christian Doerr

Helmut Reichelt

Korinna Dormann

Oliver Seeger

Hans Reichert

Rene Fischer

Gerd Rollar

The present invention relates to a new crystal form of the compound of formula and a process for its preparation. The compound may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and is particularly well-suited for security applications.

Crystal form of an organic fluorescent compound

The present invention relates to a new crystal form of bis(diphenylimidazolidinetrithione-&#x3ba;S4, &#x3ba;S5)-, (SP-4-1)-nickel(II), a printing ink formulation for security printing and security documents, comprising the new crystal form of bis(diphenylimidazolidinetrithione-&#x3ba;S4, &#x3ba;S5)-, (SP-4-1)-nickel(II) as well as its use as IR absorber.

Crystal form of a dithiolene metal complex

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Ludwigshafen, Germany

Christian Doerr