The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 1988
Filed:
Jul. 09, 1987
Applicant:
Inventor:
Robert J Miller, Burlingame, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 22 ; 106 20 ;
Abstract
An improved ink suitable for use in ink-jet printers is provided. The ink includes (a) a vehicle comprising at least one member selected from the group consisting of water and a water-soluble, non-aqueous component, and (b) an anionic dye having cations associated therewith. The ink composition is characterized by further including a macrocyclic polyether associated with the cations, the macrocyclic polyether having binding sites and a cavity size suitable for complexing the cations. The ink composition of the invention evidences reduced crusting, increased fade resistance and, for use in thermal ink-jet printers, reduced kogation.