Compositions for imparting fire retardance to wood

Details Compositions for imparting fire retardance to wood Compositions for imparting fire retardance to wood

1974-09-30

1976-10-19

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

252 81, 260 294R, 260 676R, 260 72R, C09D 518

Patent

active

039868818

ABSTRACT:
Chemical compositions are disclosed for imparting fire retardancy to wood comprising an aqueous solution of partially reacted monomethylol dicyandiamide, melamine and phosphoric acid having a molar ratio of ingredients of monomethylol dicyandiamide to melamine of from about 11.5:1.0 to about 3.0:1.0 and a mole ratio of phosphoric acid to monomethylol dicyandiamide plus melamine of from about 1.0:1.0 to 1.0:1.5. The wood is impregnated with dilute aqueous solutions of the partially reacted chemical composition and then cured in the wood to impart to the wood low hygroscopic, leach resistant, fire retardant properties.

REFERENCES:
patent: 2681326 (1954-06-01), Christianson
patent: 3509021 (1970-04-01), Woodward
patent: 3832316 (1974-08-01), Juneja
patent: 3874990 (1975-04-01), Surdyk

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