Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials
Patent
1997-03-04
1999-11-23
Silverman, Stanley S.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Of inorganic materials
264 44, 264 49, 264105, 501 39, 501 80, 501 82, 501 84, 501 87, 501 90, 521 61, 521 62, 521 63, 521154, 521180, 521919, 252500, 252511, B29C 6500
Patent
active
059894679
ABSTRACT:
The present invention is embodied in a ceramic foam made by mixing a liquid pre-ceramic resin and a liquid phenolic resin, allowing the resultant mixture to chemically foam, curing the mixture for a time and at a temperature sufficiently to convert the mixture to a polymeric foam, and then heating the resultant polymeric foam for a time and at a temperature sufficient to break-down polymers of the polymeric foam and convert the polymeric foam to a ceramic foam. The ceramic foam of the present invention contains residual decomposed components of the liquid phenolic resin and/or liquid pre-ceramic resin.
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Carpenter Harry Wellington
Castellucci Nicholas T.
Colby Mary Wagner
Daws David Eric
Anderson Terry J.
Colaianni Michael P.
Hoch Jr. Karl J.
Northrop Grumman Corporation
Silverman Stanley S.
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