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:
Feb. 25, 2014
Filed:
Feb. 14, 2012
Applicants:
Fu-su Yen, Tainan, TW;
Tzung-jiung Wu, Taichung, TW;
Inventors:
Fu-Su Yen, Tainan, TW;
Tzung-Jiung Wu, Taichung, TW;
Assignee:
National Cheng Kung University, Tainan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 5/00 (2006.01); B05D 3/10 (2006.01); B32B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chi (χ)-alumina dispersion and coating slurry of digital printing medium containing the same is disclosed, which includes flaked porous χ-alumina nanoparticles with high specific surface area but without gamma (γ)-alumina obtained by subjecting gibbsite to thermal treating, physical wet-milling and pH adjusting processes. Since the χ-alumina nanoparticles without dyes and pigments have high ink absorptivity and low cost, they can be applied to the coating layer of the digital printing medium instead of conventional silica material.