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:
Jan. 27, 2009
Filed:
May. 19, 2004
Yuntao LI, The Woodlands, TX (US);
Hung-jue Sue, College Station, TX (US);
Riichi Nishimura, Akashi, JP;
Nobuo Miyatake, Houston, TX (US);
Yuntao Li, The Woodlands, TX (US);
Hung-Jue Sue, College Station, TX (US);
Riichi Nishimura, Akashi, JP;
Nobuo Miyatake, Houston, TX (US);
The Texas A&M University System, College Station, TX (US);
Kaneka Corporation, Osaka, JP;
Abstract
The present invention is directed to novel sol-gel methods in which metal oxide precursor and an alcohol-based solution are mixed to form a reaction mixture that is then allowed to react to produce nanosized metal oxide particles. The methods of the present invention are more suitable for preparing nanosized metal oxide than are previously-described sol-gel methods. The present invention can provide for nanosized metal oxide particles more efficiently than the previously-described sol-gel methods by permitting higher concentrations of metal oxide precursor to be employed in the reaction mixture. The foregoing is provided by careful control of the pH conditions during synthesis and by ensuring that the pH is maintained at a value of about 7 or higher.