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:
Mar. 15, 2011
Filed:
Oct. 24, 2005
Yubai BI, San Diego, CA (US);
Sandeep Bangaru, San Diego, CA (US);
Fredrick Makau, San Diego, CA (US);
Yves-michel Tricot, Marly, CH;
Yubai Bi, San Diego, CA (US);
Sandeep Bangaru, San Diego, CA (US);
Fredrick Makau, San Diego, CA (US);
Yves-Michel Tricot, Marly, CH;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of treating silica in an aqueous environment includes dispersing silica particulates in an aqueous environment to form an aqueous dispersion, reversing a net charge of a surface of the silica particulates from negative to positive using an inorganic treating agent to form surface-activated silica particulates, and contacting the surface-activated silica particulates with monoaminoorganosilane reagents to form reagent-modified and surface-activated silica particulates.