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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 9139745 B1

PDFFull Text
Expired
Date of Patent:
Sep. 22, 2015

Filed:

Jul. 23, 2010

Aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles and method for producing the same

Applicants:

Noriya Izu, Aichi, JP;

Toshio Uchida, Aichi, JP;

Ichiro Matsubara, Aichi, JP;

Toshio Itoh, Aichi, JP;

Woosuck Shin, Aichi, JP;

Maiko Nishibori, Aichi, JP;

Inventors:

Noriya Izu, Aichi, JP;

Toshio Uchida, Aichi, JP;

Ichiro Matsubara, Aichi, JP;

Toshio Itoh, Aichi, JP;

Woosuck Shin, Aichi, JP;

Maiko Nishibori, Aichi, JP;

Assignee:

National Institute of Advanced Industrial Science and Technology, Tokyo, JP;

Attorneys:

Suzannah K. Sundby, Esq.

Canady + Lortz LLP

Primary Examiner:

James J Seidleck

Assistant Examiner:

S Camilla Pourbohloul

Int. Cl.
CPC ...
C08K 3/22 (2006.01); B82Y 30/00 (2011.01); C09D 11/10 (2014.01); C01F 17/00 (2006.01); C09D 11/037 (2014.01);
U.S. Cl.
CPC ...
C09D 11/10 (2013.01); B82Y 30/00 (2013.01); C01F 17/0043 (2013.01); C09D 11/037 (2013.01); C01P 2004/03 (2013.01); C01P 2004/32 (2013.01); C01P 2004/64 (2013.01); C01P 2004/84 (2013.01);
Abstract

The present invention provides an aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles, a process for producing the same, and a product such as an anti-reflection film having a high refractive index layer. The present invention relates to an aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles in which the core and shell are cerium oxide and a polymer, respectively, and the aggregate is highly concentrated, with a volume fraction of the spherical core-shell cerium oxide/polymer hybrid nanoparticles being at least 32% or higher, the aggregate contains a fixing agent, the aggregate is configured such that the fixing agent fills in voids between the spherical core-shell cerium oxide/polymer hybrid nanoparticles, the aggregate has a uniform distribution of the core-shell cerium oxide/polymer hybrid nanoparticles, which are spherical secondary particles synthesized by the polyol method, and the aggregate has excellent mechanical strength, light transmittance, and UV light-blocking properties; and the present invention further relates a process for producing the same; and an antireflection film and ink having the same.

Find Patent Forward Citations

Izu, Noriya. (2015). Aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles and method for producing the same (U.S. Patent No. 9139745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9139745

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

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