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:
May. 15, 2001
Filed:
Mar. 09, 2000
Applicant:
Inventor:
William Alan Marritt, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 1/100 ;
U.S. Cl.
CPC ...
C09D 1/100 ;
Abstract
An ink composition including water as the principal solvent, a pigment dispersion or dye, and a polyoxyalkylenated polyfluoro-isopropylidene glycerol compound. The composition may be formed by using a pigment dispersion having a pigment and a pigment dispersant. The pigment dispersant may be a derivative of a polyuronic acid in which a hydrophobic polymer is covalently attached to the reducing terminus of the polyuronic acid. The polyuronic acid may be composed primarily of 1,4-linked polygalacturonic acid, polyguluronic acid, polyiduronic acid, or mixed polymers thereof.