Method of minimizing absorption of visible light in infrared dyes

US7278727B2 · 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
• Alexandra Artemis Papadakis · Sydney, AU
• Graciel Gonzaga · Sydney, AU
• Kia Silverbrook · Sydney, AU
• Paul Lapstun · Sydney, AU

Key dates

• Filing date: Aug 9, 2004
• Grant date: Oct 9, 2007
• Expiry date: Oct 12, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/328
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides a method of minimizing absorption of visible light in an IR-absorbing dye comprising reducing intermolecular interactions between adjacent dye molecules.The method is particularly suitable for use in connection with netpage and Hyperlabel systems.