logo

For the Inventor, By the Inventor

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.:

US 7553474 B1

PDFFull Text
Date of Patent:
Jun. 30, 2009

Filed:

Aug. 08, 2005

Method for producing metal oxide sol

Applicants:

Yutaka Ohmori, Sodegaura, JP;

Hirokazu Kato, Sodegaura, JP;

Yoshinari Koyama, Sodegaura, JP;

Kenji Yamaguchi, Sodegaura, JP;

Inventors:

Yutaka Ohmori, Sodegaura, JP;

Hirokazu Kato, Sodegaura, JP;

Yoshinari Koyama, Sodegaura, JP;

Kenji Yamaguchi, Sodegaura, JP;

Assignee:

Nissan Chemical Industries, Ltd., Tokyo, JP;

Attorney:

Oliff & Berridge, PLC

Primary Examiner:

Timothy C Vanoy

Assistant Examiner:

Serena L Hanor

Int. Cl.
CPC ...
B01J 37/03 (2006.01); B01J 37/06 (2006.01); B01J 37/08 (2006.01); C01B 13/14 (2006.01); C01B 13/32 (2006.01); C01B 33/12 (2006.01); C01B 33/141 (2006.01); C01B 33/148 (2006.01); C01B 33/18 (2006.01); C01F 1/00 (2006.01); C01G 1/02 (2006.01); C01G 23/053 (2006.01); B01J 21/00 (2006.01); B01J 23/00 (2006.01); C01F 5/02 (2006.01); C01F 7/02 (2006.01); C01F 11/02 (2006.01); C01G 9/02 (2006.01); C01G 19/02 (2006.01); C01G 23/047 (2006.01); C01G 25/02 (2006.01); C01G 49/02 (2006.01); C01G 51/04 (2006.01); C01G 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

It is an object to provide a method for producing stable alkaline metal oxide sols having a uniform particle size distribution. The method comprises the steps of: heating a metal compound at a temperature of 60° C. to 110° C. in an aqueous medium that contains a carbonate of quaternary ammonium; and carrying out hydrothermal processing at a temperature of 110° C. to 250° C. The carbonate of quaternary ammonium is (NR)COor NRHCOin which R represents a hydrocarbon group, or a mixture thereof. The metal compound is one, or two or more metal compounds selected from a group of compounds based on a metal having a valence that is bivalent, trivalent, or tetravalent.

Find Patent Forward Citations

Loading…