Title:
Powdered dental cement constituent
Document Type and Number:
Japanese Patent JP6224778
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a Portland cement powder having high whiteness.SOLUTION: There is provided a Portland cement powder having a Blaine specific surface area of 4000 to 10000 cm/g and a whiteness of 92 or more which contains (A) 62.5 to 73.0 mass% of CaO, 23.5 to 31.0 mass% of SiO, 1.5 to 3.0 mass% of AlOand 0.5 to 3.0 mass% of SO, wherein the content of MgO is 1.0 mass% or less, the content of FeOis 0.2 mass% or less, the content of TiOis 0.2 mass% or less, the content of oxides of groups V to VII elements is 0.1 mass% or less and the content of oxides of groups IX to XII elements is 0.1 mass% or less.SELECTED DRAWING: None
Inventors:
Kouki Itsubo
Kyoko Wakabayashi
Kenta Masuda
Kyoko Wakabayashi
Kenta Masuda
Application Number:
JP2016138268A
Publication Date:
November 01, 2017
Filing Date:
July 13, 2016
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
A61K6/06; C04B7/02; C04B14/30; C04B14/36; C04B28/04
Domestic Patent References:
| JP11047157A | ||||
| JP2015074624A | ||||
| JP2672027B2 | ||||
| JP2013053075A |
Other References:
開業からの日々につれづれ(駒沢パークサイド歯科口腔外科),2015年 9月11日,pp.1-4,URL,https://blogs.yahoo.co.jp/jfhcq196/65191705html
セメント・コンクリート,2009年,No.745,pp.3-6
コンクリート工学年次論文集,2013年,Vol.35,No.1,pp.481-486
セメント・コンクリート,2009年,No.745,pp.3-6
コンクリート工学年次論文集,2013年,Vol.35,No.1,pp.481-486
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto
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