Intumescent fire sealing composition
US6747074B1 · kind B1 · utility
43Cited by
37References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1999 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Mar 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0622
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Described is a flexible, solid fire sealant produced by high shear mixing in a substantially volatile-free state and capable of being molded or extruded into a variety of shapes and used as firestops for windows, doors, dampers, shutters, and through-penetrations, the sealant containing water-insoluble intumescent mineral granules, a polymeric, halogen-free binder, and a flame retardant, wherein the sealant has a softness value from about 0.01 to about 3.75 mm and exhibits high expansion values and chars upon exposure to heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.