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. 16, 2001
Filed:
Oct. 13, 1998
Applicant:
Inventors:
Katsunori Kosuge, Tsukuba, JP;
Puyam Sobhindro Singh, Canberra, AU;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 3/312 ; C01B 3/320 ; C01B 3/326 ;
U.S. Cl.
CPC ...
C01B 3/312 ; C01B 3/320 ; C01B 3/326 ;
Abstract
A method of producing a mesoporous silica material, including reacting, with stirring, a liquid mixture containing a tetraalkyl orthosilicate, a linear alkylamine, an inorganic acid and water, and drying and thermally treating the thus obtained solid product, wherein the amounts of the inorganic acid, alkylamine and water are 0.05-0.6 mol, 0.2-1.0 mol and 10-100 mol, respectively, per mol of the tetraalkyl orthosilicate. Mesoporous silica hard spheres having an average pore diameter of 1.5-4 nm and a volume average diameter of 40-80 &mgr;m. The mesoporous silica hard spheres may contain metal components other than silica.