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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 9199857 B1

PDFFull Text
Date of Patent:
Dec. 01, 2015

Filed:

Apr. 26, 2012

Zinc oxide particles, method for production of the same, and cosmetic, heat releasing filler, heat releasing resin composition, heat releasing grease, and heat releasing coating composition comprising the same

Applicants:

Satoru Sueda, Fukushima, JP;

Mitsuo Hashimoto, Fukushima, JP;

Atsuki Terabe, Fukushima, JP;

Nobuo Watanabe, Fukushima, JP;

Koichiro Magara, Fukushima, JP;

Inventors:

Satoru Sueda, Fukushima, JP;

Mitsuo Hashimoto, Fukushima, JP;

Atsuki Terabe, Fukushima, JP;

Nobuo Watanabe, Fukushima, JP;

Koichiro Magara, Fukushima, JP;

Assignee:

Sakai Chemical Industry Co., Ltd., Osaka, JP;

Attorney:

Novak Druce Connolly Bove + Quigg LLP

Primary Examiner:

Holly Le

Int. Cl.
CPC ...
C01G 9/02 (2006.01); B32B 5/16 (2006.01); C09C 1/04 (2006.01); C08K 3/22 (2006.01); C09D 5/18 (2006.01); C09D 7/12 (2006.01); A61K 8/27 (2006.01); A61Q 1/02 (2006.01); A61Q 17/04 (2006.01); A61K 8/02 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
C01G 9/02 (2013.01); A61K 8/0241 (2013.01); A61K 8/27 (2013.01); A61Q 1/02 (2013.01); A61Q 17/04 (2013.01); B82Y 30/00 (2013.01); C08K 3/22 (2013.01); C09C 1/043 (2013.01); C09D 5/18 (2013.01); C09D 7/1266 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/54 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01); C01P 2006/19 (2013.01); Y10T 428/2982 (2015.01);
Abstract

It is an object of the present invention to provide zinc oxide particles which have excellent ultraviolet blocking performance and also excellent dispersibility, and therefore can be suitably used as an ultraviolet blocking agent for cosmetics. Provided are zinc oxide particles having a primary particle diameter of less than 0.1 μm, an aspect ratio of less than 2.5 and an oil absorption/BET specific surface area of 1.5 ml/100 mor less.

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