Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like
Patent
1993-05-07
1995-10-24
Epstein, Henry F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Honeycomb-like
527931, 156197, 156292, 428920, B32B 312
Patent
active
054608643
ABSTRACT:
A composite sandwich panel structure having first and second honeycomb core layers and fire barrier membranes separating the honeycomb core layers as well as forming facing skins provides protection from burn-through after 15 minutes of subjection to a 2000.degree. F. front side flame impingement at 10.5 btu/m.sup.2 heat flux density, with a 110.degree. F. average off-surface temperature 12" off of the backside of the panel. The facing skins on the outside of the honeycomb core layers are preferably formed by a layer of vermiculite film together with a layer phenolic prepreg. The center septum layer separating the first and second honeycomb core layers can be an inorganic fiber membrane, with a layer of phenolic prepreg on both sides thereof, and/or a layer of vermiculite film or other suitable materials providing a fire barrier. The honeycomb core layers are preferably made of a nylon paper honeycomb having a coating that itself forms a fire barrier, such as a coating of 80-96% sodium silicate, 1-4% vermiculite HTS and 2-15% H.sub.2 O based phenolic resin.
REFERENCES:
patent: 2477852 (1949-08-01), Bacon
patent: 2870857 (1959-01-01), Goldstein
patent: 3502171 (1970-03-01), Cowan
patent: 4043862 (1977-08-01), Roberts
patent: 4251579 (1981-02-01), Lee et al.
patent: 4271228 (1981-06-01), Foster et al.
patent: 4284443 (1981-08-01), Hilton
patent: 4304376 (1981-12-01), Hilton
patent: 4594266 (1986-06-01), Lemaire et al.
patent: 4937125 (1990-06-01), Sanmartin et al.
patent: 4956217 (1990-09-01), Heitkamp
patent: 4999239 (1991-03-01), Iacoviello et al.
patent: 5106668 (1992-04-01), Turner et al.
patent: 5336348 (1994-08-01), Mindler
Ciba-Geigy Corporation
Epstein Henry F.
Hall Luther A. R.
LandOfFree
High temperature 2000 degrees-F burn-through resistant composite does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High temperature 2000 degrees-F burn-through resistant composite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature 2000 degrees-F burn-through resistant composite will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1885325