Foamed plastic materials

Details Foamed plastic materials Foamed plastic materials

1986-04-02

1989-06-27

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

4283184, 521 88, 521 91, 521 92, 521100, 521117, 521122, 521123, 521181, C08J 912

Patent

active

048431036

ABSTRACT:
Foamed resinous products having excellent fire resistance, high thermal insulation and good resistance to heat are obtained at temperatures as low as room temperature and without the need for an added blowing agent by forming a mixture of a phenolic resole having a specified reactivity, an acid hardener for the resole and, uniformly dispersed through the mixture of resole and hardener, at least 20% by weight of a finely divided inert and insoluble particulate solid; products capable of being employed as wood-substitutes are obtained when a dihydric compound is included in the mixture and the solid is talc, fly ash and/or a hydraulic cement.

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patent: 4532261 (1985-06-01), Ruhl et al.
patent: 4595710 (1986-06-01), Albertelli et al.

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