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. 17, 1999
Filed:
Feb. 17, 1998
Applicant:
Inventors:
Richard J Kuo, St. Paul, MN (US);
Jennifer Jeannette, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 3175 ; 106 3186 ;
Abstract
Pigmented inks are disclosed comprising an aqueous medium, a pigment, and a N-disubstituted sulfosuccinamate dispersant, preferably tetrasodium N-(1,2-dicarboxyethyl)-N-octadecyl sulfosuccinamate. Such dispersants reduce the agglomeration of pigment particles and reduce or eliminate the deposition of foreign substances on heater elements during the jetting process. A variety of pigments, dispersants, humectants, and aqueous media can be used. Such dispersants provide inks with good stability, few kogation problems, long decap times, and no color-to-color bleed, and relatively fast drying times.