Epoxy foams using multiple resins and curing agents

Patent · Fri Dec 31 23:00:00 EST 1999

OSTI ID:873202

Russick, Edward M ^[1]; Rand, Peter B ^[2]

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1. Rio Rancho, NM
2. Albuquerque, NM

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.

• Research Organization: SANDIA CORP
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 6110982
• OSTI ID: 873202
• Country of Publication: United States
• Language: English

Related Subjects

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admixing
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agents
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boiling temperature
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curing
curing agent
curing agents
epoxy
epoxy foam
exotherm
filler
foam
foamable
foamed
foams
formed
heating
mixture
multiple
optionally
plurality
pore
pore size
preferred
prepared
process
reactivities
reactivity
resins
size
surfactant
tailorable
temperature
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