Fire retardant roofing system, shingle and layer
US9725907B2 · kind B2 · utility
19Cited by
23References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Mar 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24372
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Roofing shingle layers, roofing shingles, and roofing systems having fire retardant properties are provided. In certain exemplary embodiments, the roofing shingle layers, roofing shingles, or roofing systems include an expandable fire retardant material. The expandable fire retardant material may comprise expandable graphite, ammonium polyphosphate, or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.