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:
Nov. 23, 2021
Filed:
Sep. 10, 2018
President and Fellows of Harvard College, Cambridge, MA (US);
Basf SE, Ludwigshafen, DE;
Rupa Hiremath Darji, New York, NY (US);
James Newhouse, New York, NY (US);
Vinothan N. Manoharan, Cambridge, MA (US);
Victoria Hwang, Cambridge, MA (US);
Anna B. Stephenson, Somerville, MA (US);
BASF SE, Ludwigshafen am Rhein, DE;
PRESIDENT AND FELLOWS OF HARVARD COLLEGE, Cambridge, MA (US);
Abstract
Porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.