Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1999-01-13
2000-08-29
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 91, 521 93, 521 94, 521 95, 521 97, 521 99, 135178, C08J 900
Patent
active
061109827
ABSTRACT:
An epoxy foam comprising a plurality of resins, a plurality of curing agents, at least one blowing agent, at least one surfactant and optionally at least one filler and the process for making. Preferred is an epoxy foam comprising two resins of different reactivities, two curing agents, a blowing agent, a surfactant, and a filler. According to the present invention, an epoxy foam is prepared with tailorable reactivity, exotherm, and pore size by a process of admixing a plurality of resins with a plurality of curing agents, a surfactant and blowing agent, whereby a foamable mixture is formed and heating said foamable mixture at a temperature greater than the boiling temperature of the blowing agent whereby said mixture is foamed and cured.
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Russick, E. M., and Rand, P.B., "Development and Characterization of a New Epoxy Foam Encapsulant as an Ablefoam Replacement," Sandia National Laboratories Report SAND98-2538, Albuquerque, New Mexico, 1998.
Rand Peter B.
Russick Edward M.
Foelak Morton
Klavetter Elmer A.
Sandia Corporation
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