Gypsum hardened body, gypsum panel, method for manufacturing gypsum hardened body, and method for manufacturing gypsum board
US9802867B2 · kind B2 · utility
1Cited by
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13Claims
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Key dates
| Filing date | May 23, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | May 23, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2201/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.