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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 9834663 B1

PDFFull Text
Date of Patent:
Dec. 05, 2017

Filed:

Apr. 28, 2015

Composition for forming a transparent coating film including hollow silica particles

Applicant:

Jgc Catalysts and Chemicals Ltd., Kawasaki-shi, Kanagawa, JP;

Inventors:

Ryota Sueyoshi, Kitakyushu, JP;

Ryo Muraguchi, Kitakyushu, JP;

Masayuki Matsuda, Kitakyushu, JP;

Mitsuaki Kumazawa, Kitakyushu, JP;

Toshiharu Hirai, Kitakyushu, JP;

Assignee:

JGC Catalysts and Chemicals Ltd., Kawasaki-shi, JP;

Attorney:

The Webb Law Firm

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Smita Patel

Int. Cl.
CPC ...
C08K 7/26 (2006.01); B82Y 30/00 (2011.01); C01B 33/146 (2006.01); C01B 33/149 (2006.01); C09C 1/30 (2006.01); C09D 7/12 (2006.01); C09D 133/14 (2006.01); C09D 183/08 (2006.01); C01B 33/12 (2006.01); B01J 21/08 (2006.01); C01B 33/18 (2006.01); C08K 9/04 (2006.01);
U.S. Cl.
CPC ...
C08K 7/26 (2013.01); B82Y 30/00 (2013.01); C01B 33/146 (2013.01); C01B 33/149 (2013.01); C09C 1/30 (2013.01); C09C 1/3063 (2013.01); C09D 7/1266 (2013.01); C09D 7/1275 (2013.01); C09D 7/1291 (2013.01); C09D 133/14 (2013.01); C09D 183/08 (2013.01); B01J 21/08 (2013.01); C01B 33/126 (2013.01); C01B 33/18 (2013.01); C01P 2002/88 (2013.01); C01P 2004/34 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/60 (2013.01); C08K 9/04 (2013.01); Y10T 428/265 (2015.01); Y10T 428/2993 (2015.01); Y10T 428/2996 (2015.01);
Abstract

A composition for forming a transparent coating film including hollow silica microparticles and a binder is provided. The hollow silica microparticles have an average particle diameter of 5 to 300 nm when measured by the dynamic light scattering method, a specific surface area of 50 to 1500 m/g, and an outer shell in which cavities are formed. The microparticles lose weight by 1.0 W % or more at a temperature in the range of from 200° C. to 500° C. when measured by the thermogravimetry (TG). A surface charge (QA) of the hollow silica microparticles contained in the compositions for forming a transparent coating film is in the range from 5 to 20 μeq/g.

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