Fire-resistant fabric
US4996099A · kind A · utility
46Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1989 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/641
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fire-resistant fabric suitable for use as a flame barrier comprising a flame durable textile fabric substrate formed of corespun yarns, the yarns comprising a core of flame resistant fiber and a sheath of modacrylic intumescent staple fibers. In normal use, the fabric is flexible and conformable and has good air porosity. When exposed to high temperature or a flame, however, the modacrylic intumescent sheath fiber reacts and swells to form a char which closes the pores or interstices of the fabric to thus prevent flame or hot gases from penetrating therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.