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:
Oct. 28, 2014
Filed:
Mar. 14, 2011
Venumadhav Korampally, Columbia, MO (US);
Shubhra Gangopadhyay, Columbia, MO (US);
Sangho Bok, Columbia, MO (US);
Keshab Gangopadhyay, Columbia, MO (US);
Venumadhav Korampally, Columbia, MO (US);
Shubhra Gangopadhyay, Columbia, MO (US);
Sangho Bok, Columbia, MO (US);
Keshab Gangopadhyay, Columbia, MO (US);
The Curators of the University of Missouri, Columbia, MO (US);
Abstract
Preparation of Free-Flowing Organosilica Nanoparticles by Forming a solution of an organosilica nanoparticle precursor in a mixed solvent system comprising a first solvent and a second solvent, wherein the first solvent is different from the second solvent, wherein the second solvent has a boiling point which is greater than a boiling point of the first solvent, and wherein the nanoparticle precursor has a greater solubility in the first solvent than in the second solvent; removing at least 50% of the first solvent to form nanoparticles having a mean particle size less than about 25 nanometers dispersed in the solution; adding a coupling agent to the solution to facilitate reacting of the coupling agent with the nanoparticles; and recovering the nanoparticles from the solution, wherein the recovered nanoparticles have the mean particle size of less than about 25 nanometers