Flour binder for gypsum board, and related methods, product, and slurries
US11787739B2 · kind B2 · utility
0Cited by
19References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2020 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Jun 27, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is an acid-modified flour and a method of making the acid-modified flour. The acid-modified flour is desirably prepared using a dry milling process. A starting flour is combined with a strong acid to form a mixture. The mixture is heated. A neutralizer is added to increase the pH of the mixture. If desired, the mixture can be dried and any agglomerates can be removed. The acid-modified flour can be used as a binder in a slurry for preparing one or more gypsum layers in a gypsum board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.