Gypsum composites used in fire resistant building components
US9080372B2 · kind B2 · utility
3Cited by
218References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2014 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/232
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A composite product includes gypsum in an amount of 60 to 90% by weight, fibers in an amount of 1.5 to 26% by weight substantially homogeneously distributed through the composite, and a rheology-modifying agent in an amount of 0.5 to 6% by weight. The composite is caused or allowed to cure to form a cured composite. The cured composite is a fire resistant component used in a fire-rated door core, a fire-rated door or a fire-rated building panel. The fire resistant component may include a building panel, a door panel, a door core, a door rail, a door stile, a door lock block, a door border, or a door insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.