Process for producing non-flammable phenolic resin foam

Details Process for producing non-flammable phenolic resin foam Process for producing non-flammable phenolic resin foam

1998-03-10

1999-06-29

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 92, 521181, 523218, 523219, C08J 932

Patent

active

059169273

ABSTRACT:
The non-flammable phenolic resin foam with plane surface and high fire resistance in this invention is produced by mixing 30 to 100 parts by weight of resol type phenolic resin, 0.3 to 10 parts by weight of foaming agent, 10 to 50 parts by weight of curing agent, 30 to 800 parts by weight of ceramic micro-hollow particles (compression strength of 600 kgf/cm.sup.2 or more, bulk density of 0.3 to 0.5 g/cm.sup.3 and melting point of 1500.degree. C. or more), 2 to 250 parts by weight of inorganic filling agent, 40 to 250 parts by weight of aluminum hydroxide with water, press molding and heating for curing.

REFERENCES:
patent: 2797201 (1957-06-01), Veatch et al.
patent: 4067829 (1978-01-01), Garrett
patent: 4595710 (1986-06-01), Albertelli et al.
patent: 4820576 (1989-04-01), Duryea
patent: 4843103 (1989-06-01), Albertelli et al.

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