Patent · US Active

Method of minimizing absorption of visible light in ink compositions comprising IR-absorbing metal-cyanine dyes

US7456277B2 · kind B2 · utility

1Cited by

14References

26Claims

0Family size

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	Nov 25, 2008
Priority date	—
Expiry date	Aug 1, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/32
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention provides a method of minimizing absorption of visible light in an ink composition comprising an IR-absorbing macrocyclic cyanine dye, comprising preselecting said dye such that it includes at least one moiety for reducing intermolecular interactions between adjacent dye molecules.The method is especially suitable for use in connection with netpage and Hyperlabel systems.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.