Process for the production of gypsum-based composite boards and shaped bodies
US6042665A · kind A · utility
5Cited by
4References
20Claims
0Family size
Inventors
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B40/0277
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Gypsum-based composite boards or shaped bodies can be manufactured from a mixture comprising calcium sulfate dihydrate and water, and optionally reinforcement materials or fillers, and conventional additives, by shaping the mixture to a raw form and hardening the raw form with water at a pressure exceeding the saturation pressure of calcium sulfate dihydrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.