Fire retardant compositions

Details Fire retardant compositions Fire retardant compositions

1978-04-26

1979-09-18

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

252 81, 162159, 162181A, 162181B, 428921, C09K 328

Patent

active

041681754

ABSTRACT:
Fire retardant generally non-caking compositions of intimately intermixed ammonium phosphate, e.g. mono- and/or diammonium phosphate; sodium tetraborate containing molecularly bound water, e.g. the decahydrate, borax; and fractured finely ground solid powder particles of soda-containing silicate glass which have a high and irregular surface area and an active dry moisture absorbent surface condition for maintaining the particles of ammonium phosphate and sodium tetraborate in moisture protected disposition and for inhibiting the tendency of such particles to adhere to one another; the three components having an average particle size below about 4 mesh, the ammonium phosphate and sodium tetraborate being present in a combined predominant amount effective for imparting an active fire retarding property to cellulosic materials, and the resulting admixture being substantially dry and free flowing with the individual particles thereof in substantially uniform and non-caking distribution;

REFERENCES:
patent: 2542721 (1947-01-01), Stafford
patent: 3082121 (1963-03-01), Donaldson et al.
patent: 3996325 (1976-12-01), Megraw
patent: 4016131 (1977-04-01), Shutt et al.

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