Title: Compositions for imparting fire retardance to wood

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.

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Inventors: Oberley, William J. (Monroeville, PA, US)

Application Number: 693188
Filing Date: 1976-06-07
Publication_date: 1977-03-01
Assignee:
Primary Class(es): 427/393 427/440
Other Classes:
US Patent Ref:

2711998	Jun, 1955	Weaver et al.	427/393.
3493417	Feb, 1970	Moren et al.	427/393.
3519476	Jul, 1970	Bremmer et al.	427/393.
3935341	Jan, 1976	Sorenson et al.	427/393.

Other Refs:
Primary Examiner: Lusignan, Michael R.
Assistant Examiner:
Attorney: