Invention Grant
- Patent Title: Foaming plaster
- Patent Title (中): 发泡石膏
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Application No.: US11722098Application Date: 2005-12-16
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Publication No.: US07678189B2Publication Date: 2010-03-16
- Inventor: Edgar Donald Knott
- Applicant: Edgar Donald Knott
- Agent David A. Guerra
- Priority: AU2005900053 20050107
- International Application: PCT/AU2005/001908 WO 20051216
- International Announcement: WO2006/072126 WO 20060713
- Main IPC: C04B11/00
- IPC: C04B11/00
Abstract:
A method of producing a foamed plaster comprises the following steps: (a) mixing plaster of Paris and calcium carbonate; (b) supplying water, and (c) adding phosphoric acid. The phosphoric acid reacts with the calcium carbonate to release gaseous carbon dioxide. It also reacts with any steel present to form an insoluble iron phosphate coating.
Public/Granted literature
- US20090324931A1 FOAMING PLASTER Public/Granted day:2009-12-31
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