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. 30, 2015
Filed:
Jun. 27, 2012
Steven Evans, Rochester, NY (US);
Ellen J. Pyszczek, LeRoy, NY (US);
Steven Evans, Rochester, NY (US);
Ellen J. Pyszczek, LeRoy, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A process for modifying the surface of a carbon black by contacting said carbon black with a conjugated diimine compound. The conjugated diimine compound may comprise various substituents to provide the carbon black with desired corresponding properties, such as groups to impart increased hydrophilicity and self-dispersibility to the carbon black. Other embodiments relate to novel carbon black products, which may be prepared according to a process of the invention. The carbon black products may be used in the same applications as conventional carbon blacks. Such uses include, but are not limited to, plastic compositions, aqueous inks, aqueous coatings, rubber compositions, paper compositions, and textile compositions. In a specific embodiment, the resulting surface modified carbon black is employed as a pigment in an aqueous inkjet ink composition.