Thermoset epoxy foam compositions and a method of preparing the

Details Thermoset epoxy foam compositions and a method of preparing the Thermoset epoxy foam compositions and a method of preparing the

1975-07-07

1978-05-23

Bleutge, John C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 2EA, 260 25B, 260 47EA, 260837R, C08J 908, C08G 5942

Patent

active

040909867

ABSTRACT:
Thermoset epoxy foams are produced from an epoxy resin, delta-1-tetrahydrophthalic anhydride, and an amine accelerator. These compounds are mixed in resin-foaming amounts to produce a foamable mixture to which typical foam additives like auxiliary blowing agents, surfactants, microscopic spheres, etc., may also be added. This foamable mixture is heated at a temperature of at least 115.degree. C. to foam and cure the mixture to produce thermoset epoxy foams.

REFERENCES:
patent: 2739134 (1956-03-01), Parry et al.
patent: 3223654 (1965-12-01), Nickerson et al.
patent: 3325341 (1967-06-01), Shannon
patent: 3341555 (1967-09-01), Wooster et al.
patent: 3620990 (1971-11-01), Hazen et al.

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