Patent · US Active

Colorants

US8579428B2 · kind B2 · utility

2Cited by

4References

20Claims

0Family size

Assignee

Xerox Corporation · US

Inventors

Jeffery H. Banning · Hillsboro, US
Kelley A. Moore · Salem, US
Randall R. Bridgeman · Hubbard, US
Scott Broce · Longmont, US
Stephan V. Drappel · Toronto, CA
Michael B. Meinhardt · Lake Oswego, US
Jule W. Thomas, Jr. · West Linn, US

Key dates

Filing date	Jan 18, 2012
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Mar 30, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2810/50
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed are colorants comprising a colored laked complex of (a) a chromogen molecule having at least one (i) carboxylic acid group, (ii) carboxylate group, (iii) sulfonic acid group, (iv) sulfonate group, or (v) combination thereof, and (b) a polymer, said chromogen molecule and said polymer each being complexed to (c) a metal. Also disclosed are phase change inks containing the colorants.

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