Invention Grant
- Patent Title: Gypsum hardened body, gypsum panel, method for manufacturing gypsum hardened body, and method for manufacturing gypsum board
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Application No.: US15308947Application Date: 2014-05-23
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Publication No.: US09802867B2Publication Date: 2017-10-31
- Inventor: Ushio Sudo , Hiroaki Itano , Yosuke Sato , Tomoaki Sawada
- Applicant: YOSHINO GYPSUM CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: YOSHINO GYPSUM CO., LTD.
- Current Assignee: YOSHINO GYPSUM CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP2014-097160 20140508
- International Application: PCT/JP2014/063739 WO 20140523
- International Announcement: WO2015/170421 WO 20151112
- Main IPC: C04B28/14
- IPC: C04B28/14 ; C04B22/16 ; E04C2/04 ; C04B103/12 ; C04B111/00
Abstract:
A gypsum hardened body including a gypsum slurry that has been hardened is provided. The gypsum slurry is obtained by mixing calcined gypsum, calcium hydrogen phosphate dihydrate, water, and foam. The specific gravity of the gypsum hardened body is greater than or equal to 0.3 and less than or equal to 0.8.
Public/Granted literature
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