Basf Se Corporation

Weleda Ag

Daniel Heizler

Urs Lehmann

Helmut Reichelt

Thomas Gessner

Thomas Geßner

Hélène Thérèse Anne Kapfer

Alissa Karyne Da Silva

Alicia Idoux

Katarzyna Hänni-ciunel

Meike Schmitt

The invention relates to the use of compounds of formulae (I) and/or (II) as colorless 1R absorbers wherein M is Ni, Pd, Pt, Au, Ir, Fe, Zn, W, Cu, Mo, In, Mn, Co, Mg, V, Cr or Ti, X, Xand Xare each independently of the others sulfur or oxygen, R, R, R, R, Rand Rare each independently of the others hydrogen, NRR, unsubstituted or substituted C-Calkyl, C-Calkyl wherein the alkylene chain is interrupted with oxygen, unsubstituted or substituted C-Calkenyl, unsubstituted or substituted aryl, unsubstituted or substituted arylalkyl or unsubstituted or substituted heteroarylalkyl, Rand R, each independently of the other, being unsubstituted or substituted C-Calkyl, unsubstituted or substituted aryl, unsubstituted or substituted arylalkyl or unsubstituted or substituted heteroarylalkyl, a further IR absorber optionally being added to the compounds of formulae (I) and (II). The invention relates also to novel dithiolene compounds of formulae (I) and (II) wherein Xis oxygen and Xand Xare oxygen or sulfur. The invention relates furthermore to novel dithiolene compounds of formulae (I) and (II) wherein Rto Rare NRR. 

Dithiolene metal complex colorless IR absorbers

The invention relates to the use of compounds of formulae (I) and/or (II) as colorless IR absorbers wherein M is Ni, Pd, Pt, Au, Ir, Fe, Zn, W, Cu, Mo, In, Mn, Co, Mg, V, Cr or Ti, X, Xand Xare each independently of the others sulfur or oxygen, R, R, R, R, Rand Rare each independently of the others hydrogen, NRR, unsubstituted or substituted C-Calkyl, C-Calkyl wherein the alkylene chain is interrupted with oxygen, unsubstituted or substituted C-Calkenyl, unsubstituted or substituted aryl, unsubstituted or substituted arylalkyl or unsubstituted or substituted heteroarylalkyl, Rand R, each independently of the other, being unsubstituted or substituted C-Calkyl, unsubstituted or substituted aryl, unsubstituted or substituted arylalkyl or unsubstituted or substituted heteroarylalkyl, a further IR absorber optionally being added to the compounds of formulae (I) and (II). The invention relates also to novel dithiolene compounds of formulae (I) and (II) wherein Xis oxygen and Xand Xare oxygen or sulfur. The invention relates furthermore to novel dithiolene compounds of formulae (I) and (II) wherein Rto Rare NRR. 

The present invention relates to specific metal complexes of dithiolenes with perfluoroalkyl substituted imidazolidine-2-chalcogenone-4,5-dithione ligands, a process for their preparation and their use as colourless IR absorbers, for optical filters application; especially for plasma display panels, or for laser welding of plastics. The compounds may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and are particularly well-suited for security applications.

Chromophores with perfluoroalkyl substituents

The present invention relates to the use of specific metal complexes of dithiolenes with aryl or heteroarylsubstituted imidazolidine-2-chalcogenone-4,5-dithione ligands as colorless IR absorbers.

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Basel, Switzerland

Daniel Heizler