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Rigid fire-resistant foams for walls and floorsPrevious techniques for fabricating rigid fire-resistant polyimide foams by compressing already-foamed precursor have been supplanted by one-step constrained-rise process. Precursor mixed with reinforcing fillers is placed between rigid substrates that constrain expansion of foam as it is heated by microwave energy. Process works for both liquid and powder precursors and can also be adapted to attach woven fiberglass skins at same time prcursor is being foamed.
Document ID
19800000421
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Gagliani, J.
(International Harvester Co.)
Lee, R.
(International Harvester Co.)
Sorathia, U. A. K.
(International Harvester Co.)
Wilcoxson, A. L.
(International Harvester Co.)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 3
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MSC-18708
Accession Number
80B10421
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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