Title:
METHOD FOR MANUFACTURING HARDENED GYPSUM
Document Type and Number:
Japanese Patent JP2009203131
Kind Code:
A
Abstract:
To provide a method for manufacturing a hardened gypsum with high strength from inexpensive -type gypsum hemihydrate efficiently.
In the method for manufacturing a -type gypsum hemihydrate slurry, the slurry is made by irradiating the mixture of -type gypsum hemihydrate and water having a water mixing ratio of 30-60 wt.% to -type gypsum hemihydrate with ultrasonic waves.
Inventors:
KOJIMA YOSHIYUKI
Application Number:
JP2008048601A
Publication Date:
September 10, 2009
Filing Date:
February 28, 2008
Export Citation:
Assignee:
UNIV NIHON
International Classes:
C04B40/02; B28B17/02; C04B28/14
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation
Miyuki Ariga
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto
Miyuki Ariga
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto
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