Firestop material
US9850429B2 · kind B2 · utility
1Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Jul 31, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249986
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a firestop material consisting of a polymer foam, notably a polyurethane foam, containing flame-retardant means. This firestop material is characterized in that the flame-retardant means consist of means designed to form a charred layer on the foam surface, under the effect of a rise in the temperature of the material resulting from a fire, and are supplemented by at least one inorganic type flame retardant. The invention furthermore relates to a chemical composition intended, after expansion and drying, to form such a firestop material, and to a use of such a firestop material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.