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:
Jun. 05, 2001
Filed:
Sep. 25, 1998
Applicant:
Inventors:
William Alan Marritt, Nagano, JP;
Akio Owatari, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo To, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 1/100 ; C08G 8/100 ; B01F 1/752 ; B41J 2/01 ;
U.S. Cl.
CPC ...
C09D 1/100 ; C08G 8/100 ; B01F 1/752 ; B41J 2/01 ;
Abstract
Pigment dispersed aqueous ink jet ink compositions suitable for printing on plain paper. The ink comprises water as the principal solvent, a pigment and a pigment dispersant. The pigment dispersant is 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 is composed primarily of,-linked polygalacturonic acid, polyguluronic acid, polyiduronic acid, or mixed polymers thereof.