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:
Nov. 10, 2020

Filed:

Mar. 31, 2017
Applicant:

Mitsubishi Materials Corporation, Chiyoda-ku, JP;

Inventors:

Kiyoshi Kamitani, Chichibu-gun, JP;

Kenji Tokunaga, Tokyo, JP;

Hideo Tawara, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/06 (2006.01); C04B 24/06 (2006.01); C04B 22/10 (2006.01); C04B 22/14 (2006.01); C04B 40/00 (2006.01); C04B 22/00 (2006.01); C04B 103/12 (2006.01); C04B 103/14 (2006.01);
U.S. Cl.
CPC ...
C04B 28/065 (2013.01); C04B 22/0093 (2013.01); C04B 22/10 (2013.01); C04B 22/147 (2013.01); C04B 24/06 (2013.01); C04B 28/06 (2013.01); C04B 40/0028 (2013.01); C04B 2103/12 (2013.01); C04B 2103/14 (2013.01);
Abstract

The present invention provides a rapid-hardening admixture for accelerating hardening of a cement composition and a method for producing the same. The rapid-hardening admixture includes calcium aluminate, inorganic sulfate, and a setting modifier, in which the calcium aluminate has an average particle diameter in a range of 8 μm to 100 μm, and the setting modifier has an average particle diameter of 5 μm or less.


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