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:
Sep. 06, 1994
Filed:
Nov. 15, 1991
Applicant:
Inventors:
Egon Matijevic, Potsdam, NY (US);
Wan P Hsu, Potsdam, NY (US);
Manfred R Kuehnle, New London, NH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ;
U.S. Cl.
CPC ...
106442 ; 106447 ; 106483 ; 106482 ; 106491 ; 427219 ; 427220 ;
Abstract
A method of making synthetic color pigments comprises synthesizing monodispersed colloidal core particles by precipitation from a solution and applying dye material to the core particles either by adsorption directly into the core particles or by adsorption or incorporation into alumina fixation shells at the surfaces of the core particles. Additional functional shells may be applied to the dyed core particles for various reasons. The pigments are useful for the coloration of various media such as printing inks and paint compositions.