Flame retardant modified asphalt-based material and products therefrom
US5516817A · kind A · utility
37Cited by
26References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1995 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Apr 27, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flame retardant asphalt material useful for the processing and formation of a roofing membrane includes from about 40 to about 50 parts by weight of asphalt; from about 10 to about 20 parts by weight of a copolymer; from 0 to about 5 parts by weight of polypropylene homopolymer having at least about 45 percent by weight of crystallinity; from about 10 to about 40 parts by weight of a functional filler having a decomposition temperature above the processing temperature of the material; from about 0 to about 15 parts by weight of a non-functional filler; and, from about 0.5 to about 10 parts by weight of an intumescent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.