Compositions for imparting fire retardance to wood

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

1976-06-07

1977-03-01

Lusignan, Michael R.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427440, B05D 302, B05D 118

Patent

active

040102963

ABSTRACT:
Chemical compositions are disclosed for imparting fire retardancy to wood comprising an aqueous solution of partially reacted monomethylol dicyanadiamide, 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: 2711998 (1955-06-01), Weaver et al.
patent: 3493417 (1970-02-01), Moren et al.
patent: 3519476 (1970-07-01), Bremmer et al.
patent: 3935341 (1976-01-01), Sorenson et al.

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