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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 9115033 B1

PDFFull Text
Date of Patent:
Aug. 25, 2015

Filed:

Jul. 06, 2012

Moisture absorbent for organic electroluminescence element and production method for same

Applicants:

Takayuki Watanabe, Ube, JP;

Akihiro Moto, Ube, JP;

Takuya Mishima, Ube, JP;

Satoru Sano, Ube, JP;

Akira Ueki, Ube, JP;

Inventors:

Takayuki Watanabe, Ube, JP;

Akihiro Moto, Ube, JP;

Takuya Mishima, Ube, JP;

Satoru Sano, Ube, JP;

Akira Ueki, Ube, JP;

Assignee:

UBE MATERIAL INDUSTRIES, LTD., Ube-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Mark Kopec

Assistant Examiner:

Matthew R Diaz

Int. Cl.
CPC ...
C04B 35/628 (2006.01); B01D 53/26 (2006.01); H01L 51/52 (2006.01); B01D 53/28 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); B01J 20/28 (2006.01); C04B 35/626 (2006.01); B01J 20/04 (2006.01); H05B 33/10 (2006.01); H05B 33/04 (2006.01);
U.S. Cl.
CPC ...
C04B 35/62886 (2013.01); B01D 53/261 (2013.01); B01D 53/263 (2013.01); B01D 53/28 (2013.01); B01J 20/041 (2013.01); B01J 20/28026 (2013.01); B01J 20/28057 (2013.01); B01J 20/3021 (2013.01); B01J 20/3085 (2013.01); B01J 20/3204 (2013.01); B01J 20/3221 (2013.01); B01J 20/3248 (2013.01); C04B 35/6261 (2013.01); H01L 51/5259 (2013.01); H05B 33/04 (2013.01); H05B 33/10 (2013.01); B01D 2251/404 (2013.01); B01D 2251/602 (2013.01); B01D 2253/1124 (2013.01); B01D 2253/20 (2013.01); B01D 2253/25 (2013.01); B01D 2253/304 (2013.01); B01D 2253/306 (2013.01);
Abstract

A moisture absorbent for an organic EL element having hydrophobicity and no reduction in moisture absorption speed, and a method for producing the moisture absorbent are provided. The moisture absorbent for an organic EL element includes, as a main component, calcium oxide particles each having an alkoxide layer on the surface thereof. Furthermore, the method for producing a moisture absorbent for an organic EL element includes dry-pulverizing calcium oxide in the presence of an alcohol, and thereafter dry-treating the pulverized calcium oxide.

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