System and method for the production of gypsum board using starch pellets
US8882943B2 · kind B2 · utility
13Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Apr 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1712
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a system and method for the production of gypsum board using starch pellets. In accordance with the present disclosure, the starch necessary for board formation is provided in the form of starch pellets. These pellets are mixed with a gypsum slurry in a mixer. The pellets are initially insoluble and do not dissolve. However, during subsequent drying stages, the pellets become soluble and dissolve into the gypsum phase. This both provides the desired starch component and also results in the formation of voids within the set gypsum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.