Production of phenolic resin composite foam

Details Production of phenolic resin composite foam Production of phenolic resin composite foam

1986-04-14

1987-10-06

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 54, 521 94, 521 97, 521130, 521181, 521909, 523218, 523219, C08J 910

Patent

active

046983708

ABSTRACT:
A phenolic resin composite foam is disclosed which is prepared by heating and foaming a novolak phenolic resin having a number average molecular weight of 250 to 600 and a bulk density of 0.15 to 0.5, a blowing agent, a blowing auxiliary compound and inorganic foamed particles. Additional materials for flame retardancy can be added. The foam produced has a high compressive strength, a high foaming and rapid curing rates, a low water absorption and a minimum of friability.

REFERENCES:
patent: 2993871 (1961-07-01), Shannon et al.
patent: 3784487 (1974-01-01), Franck et al.
patent: 4252908 (1981-02-01), Paladini
patent: 4275170 (1981-06-01), McAllister et al.
patent: 4309527 (1982-01-01), McAllister et al.

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