Process for rendering a material fire retardant

Details Process for rendering a material fire retardant Process for rendering a material fire retardant

1984-04-13

1985-08-13

Bleutge, John C.

Coating processes

Solid particles or fibers applied

Applying superposed diverse coatings or coating a coated base

427193, 427204, 156276, 156305, B05D 136

Patent

active

045350027

ABSTRACT:
A fire retardant material is formed by intimately associating the unexpanded form of perlite in association with a permeable mass of silica glass, said association is formed by permeating said perlite into said mass of glass. Preferedly the composition comprises particles of unexpanded perlite less than 100 mesh and preferably no larger than 200 mesh and the permeable glass comprises a glass fiber mat. The fire retardant material can be formed as a unified body capable of being applied onto other structural components or alternately, it can be intimately bonded to the surface of structural components as a veneer layer. Upon exposure to combustion temperatures the perlite expands from its unexpanded form to its expanded form at or near the deformation point of the glass mat followed by reaction of the perlite and the glass to form a flame-impenetrable ceramic.

REFERENCES:
patent: 2640786 (1953-06-01), Parsons
patent: 3342614 (1967-09-01), Koons
patent: 3978018 (1976-08-01), Self
patent: 4011195 (1977-03-01), Self
patent: 4176115 (1979-11-01), Hartman
patent: 4193898 (1980-03-01), Miller
patent: 4289680 (1981-09-01), Kimura
patent: 4297252 (1981-10-01), Caesar

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