Metal-cyanine dye having axial ligands which reduce visible absorption

US7367665B2 · kind B2 · utility

Assignee

• Silverbrook Research Pty Ltd · AU

Inventors

• Simone Charlotte Vonwiller · Forbes, AU
• Scott Matthew Starling · Sydney, AU
• Damon Donald Ridley · Sydney, AU
• Lachlan Everett Hall · Sydney, AU
• Simon Fielder · Sydney, AU
• Maxine Sintic · Sydney, AU
• Sutharsiny Indusegaram · Sydney, AU
• Kia Silverbrook · Sydney, AU
• Paul Lapstun · Sydney, AU

Key dates

• Filing date: Aug 9, 2004
• Grant date: May 6, 2008
• Expiry date: Jul 28, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24802
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides an IR-absorbing metal-cyanine dye, said metal having at least one axial ligand bound thereto, wherein said axial ligand comprises a moiety suitable for reducing intermolecular interactions between adjacent dye molecules, thereby minimizing absorption of visible light.Dyes of this type are especially suitable for use in netpage and Hyperlabel systems.