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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 10647912 B1

PDFFull Text
Date of Patent:
May. 12, 2020

Filed:

Mar. 22, 2017

Carbon-coated vanadium dioxide particles

Applicant:

Sekisui Chemical Co., Ltd., Osaka, JP;

Inventors:

Ren-de Sun, Osaka, JP;

Shoji Nozato, Osaka, JP;

Akira Nakasuga, Osaka, JP;

Masanori Nakamura, Kyoto, JP;

Naoyuki Nagatani, Saitama, JP;

Keigo Oowashi, Osaka, JP;

Assignee:

SEKISUI CHEMICAL CO., LTD., Osaka, JP;

Attorney:

Osha Liang LLP

Primary Examiner:

Jane L Stanley

Int. Cl.
CPC ...
C09K 9/00 (2006.01); C01G 31/02 (2006.01); C09D 7/62 (2018.01); B01J 13/02 (2006.01); B32B 17/10 (2006.01); C03C 27/10 (2006.01); C08J 5/18 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08K 9/02 (2006.01); C09C 1/00 (2006.01); C09D 5/26 (2006.01); C09D 5/29 (2006.01); C09D 201/00 (2006.01);
U.S. Cl.
CPC ...
C09K 9/00 (2013.01); B01J 13/02 (2013.01); B32B 17/10036 (2013.01); B32B 17/1055 (2013.01); C01G 31/02 (2013.01); C03C 27/10 (2013.01); C08J 5/18 (2013.01); C08K 3/04 (2013.01); C08K 3/22 (2013.01); C08K 9/02 (2013.01); C09C 1/0006 (2013.01); C09D 5/26 (2013.01); C09D 5/29 (2013.01); C09D 7/62 (2018.01); C09D 201/00 (2013.01); B32B 2264/107 (2013.01); C01P 2002/02 (2013.01); C01P 2004/04 (2013.01); C01P 2004/80 (2013.01); C01P 2006/32 (2013.01); C01P 2006/60 (2013.01); C08J 2300/22 (2013.01);
Abstract

A carbon-coated vanadium dioxide particle includes a vanadium dioxide particle; and a coating layer containing amorphous carbon on a surface of the vanadium dioxide particle, the amorphous carbon being derived from carbon contained in an oxazine resin, and having a peak intensity ratio of a G band to a band of 1.5 or greater as determined from a Raman spectrum. The coating layer has an average thickness of 50 nm or less. The coating layer has a coefficient of variation (CV value) of thickness of 7% or less.

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