Fire-barriers
US4509559A · kind A · utility
56Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Mar 22, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/921
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A fire-barrier comprises a composite of three types of fire-retardant materials operable sequentially to combat an increase in temperature, e.g. as occurs on outbreak of a fire, by different methods. A preferred combination of materials is an outer layer of heat reflective material, an inner layer of thermally intumescent material and an intermediate layer of endothermal material between the inner and outer layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.