Patent · US Active

Aqueous formulation comprising low visibility naphthalocyanine dye

US7972427B2 · kind B2 · utility

3Cited by

17References

10Claims

0Family size

Assignee

Silverbrook Research Pty Ltd · AU

Inventors

Sutharsiny Indusegaram · Sydney, AU
Graciel Gonzaga · Sydney, AU
Simone Charlotte Vonwiller · Forbes, AU
Scott Matthew Starling · Sydney, AU
Lachlan Everett Hall · Sydney, AU
Damon Donald Ridley · Sydney, AU
Kia Silverbrook · Sydney, AU

Key dates

Filing date	Oct 13, 2010
Grant date	Jul 5, 2011
Priority date	—
Expiry date	Oct 13, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24934
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An aqueous formulation comprises a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety. A pH of the formulation is in the range of 4 to 6.5, which minimizes visibility of the formulation.

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