Composite building boards with thermoplastic coatings and cementitious precoated fibrous mats
US9346244B2 · kind B2 · utility
6Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2011 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a composite building board construction. The board includes a set gypsum core and a fibrous mat that is pre-coated with a cementitious layer. A thermoplastic coating is then applied over the cementitious layer. Additives can be added to one or more of the layers to provide enhanced performance characteristics. Also discloses are various manufacturing techniques for applying a hot melt thermoplastic coating to cementitious layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.