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.

Date of Patent:
Jul. 31, 2018

Filed:

Feb. 26, 2016
Applicant:

Asahi Glass Company, Limited, Chiyoda-ku, JP;

Inventors:

Ryota Ando, Chiyoda-ku, JP;

Noriko Nishina, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/087 (2006.01); C03B 1/02 (2006.01); C03C 1/02 (2006.01); C03C 3/091 (2006.01); C04B 18/02 (2006.01);
U.S. Cl.
CPC ...
C03C 3/087 (2013.01); C03B 1/02 (2013.01); C03C 1/026 (2013.01); C03C 3/091 (2013.01); C04B 18/021 (2013.01);
Abstract

To provide a method for producing granules as glass raw material without using a binder that contains an alkali metal or boron. In the method, granules are produced by mixing a glass raw material composition and water. A method for producing granules to be used for the production of alkali-free glass, which comprises mixing a glass raw material composition and water, wherein the glass raw material composition essentially comprises an aluminum source containing calcium aluminate represented by CaO.2AlO, a calcium source containing one or both of calcium oxide and calcium hydroxide, and a silicon source.


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