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:
Aug. 27, 2002
Filed:
Feb. 23, 1998
Applicant:
Inventors:
Kai-Kong Iu, San Diego, CA (US);
Gary W. Byers, Vista, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/00 ; B05D 5/04 ;
U.S. Cl.
CPC ...
B41M 5/00 ; B05D 5/04 ;
Abstract
A recording sheet is disclosed comprising a substrate, having on at least one side thereon, an ink absorbent layer, said ink absorbent layer comprising alumina sol, at least one gelling agent, at least one cyclodextrin compound, and optionally, at least one binder. The ink absorbent layer may further comprise at least one viscosity, modifying compound and at least one gloss enhancing compound. The recording sheet of the present invention provides enhanced lightfastness properties.