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:
Apr. 07, 2009
Filed:
Mar. 17, 2006
Sukesh Parasher, Lawrenceville, NJ (US);
Cheng Zhang, Lawrenceville, NJ (US);
Michael A. Rueter, Plymouth Meeting, PA (US);
Bing Zhou, Cranbury, NJ (US);
Sukesh Parasher, Lawrenceville, NJ (US);
Cheng Zhang, Lawrenceville, NJ (US);
Michael A. Rueter, Plymouth Meeting, PA (US);
Bing Zhou, Cranbury, NJ (US);
Headwaters Technology Innovation, LLC, Lawrenceville, NJ (US);
Abstract
Metal-containing colloids are manufactured by reacting a plurality of metal ions and a plurality of organic agent molecules to form metal complexes in a mixture having a pH greater than about 4.25. The metal complexes are reduced for at least 0.5 hour to form stable colloidal nanoparticles. The extended reduction time improves the stability of the colloidal particles as compared to shorter reduction times. The stability of the colloidal particles allows for colloids with higher concentrations of metal to be formed. The concentration of metal in the colloid is preferably at least about 150 ppm by weight.