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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 10836913 B1

PDFFull Text
Date of Patent:
Nov. 17, 2020

Filed:

Nov. 30, 2017

Alumina slurry, method for producing same, and coating liquid

Applicant:

Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;

Inventors:

Hirotaka Ozaki, Niihama, JP;

Noriaki Fujita, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Scott R Walshon

Assistant Examiner:

Elaine M Vazquez

Int. Cl.
CPC ...
C09D 1/00 (2006.01); H01M 2/16 (2006.01); C01F 7/02 (2006.01); H01M 2/14 (2006.01); C08K 3/22 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
C09D 1/00 (2013.01); C01F 7/023 (2013.01); C01F 7/026 (2013.01); C08K 3/22 (2013.01); H01M 2/145 (2013.01); H01M 2/166 (2013.01); H01M 2/1653 (2013.01); H01M 2/1686 (2013.01); C01P 2004/51 (2013.01); C01P 2004/53 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/22 (2013.01); C01P 2006/80 (2013.01); C08K 2003/2227 (2013.01); H01M 10/0525 (2013.01);
Abstract

Disclosed is an alumina slurry substantially including alpha-alumina particles and water, wherein the alpha-alumina particles satisfy all particle diameter distribution conditions (a) to (d) mentioned below, the alpha-alumina particles have an alumina purity of 90% by weight or more, the content of alumina in the slurry is 20% by weight or more and 50% by weight or less, and the slurry has a viscosity of 0.5 Pa·s or more and 15 Pa·s or less: condition (a): the average particle diameter is 1 μm or less, condition (b): particles having a particle diameter of less than 0.2 μm account for 7% by weight or less, condition (c): particles having a particle diameter of more than 1.5 μm account for 15% by weight or less, and condition (d): one or more frequency maximums exist in a particle diameter range of 0.1 μm or more and less than 0.5 μm.

Find Patent Forward Citations

Ozaki, Hirotaka. (2020). Alumina slurry, method for producing same, and coating liquid (U.S. Patent No. 10836913). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10836913

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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