High salt gypsum wallboard containing salt absorbents and methods of making same
US11999658B2 · kind B2 · utility
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19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2022 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00629
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gypsum wallboard having a core with a central core layer and one or more densified layers is disclosed. At least one densified layer contains salt absorbent particles of zeolite and/or hydrotalcite to improve adhesion of the gypsum core to a cover sheet. Also, methods of making the gypsum wallboard and a wall system for employing the gypsum wallboard are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.