Fire retardant process

Details Fire retardant process Fire retardant process

1980-05-12

1981-12-15

Lusignan, Michael R.

Coating processes

Solid particles or fibers applied

106 1811, 106 1816, 252607, 427325, 427369, 427421, 427427, 427440, 427441, B05D 112

Patent

active

043059767

ABSTRACT:
A method is provided which permanently embeds a fire retardant such as diammonium phsophate into wood shingles, wood framing members or other wood members by means of blasting a special slurry of the fire retardant into the body of the wood with an airless spray gun, or alternatively soaking or dipping the wood in a softening solution and then emersing it in the fire retardant slurry which is subsequently pressurized to over 100 pounds per square inch, in either case the diammonium phosphate granules being embedded into the wood where they are protected from being leached at by rainfall and the like by a nonsoluable, nonvolatile carrier liquid.

REFERENCES:
patent: 174914 (1876-03-01), Lockwood
patent: 646101 (1900-03-01), Simpson
patent: 1157205 (1915-08-01), Loud
patent: 1732420 (1929-10-01), Rice
patent: 2381049 (1940-08-01), Hammond
patent: 4051282 (1977-09-01), Davies
patent: 4142009 (1979-02-01), Kyle
patent: 4212675 (1980-07-01), Robinson
patent: 4223066 (1980-09-01), Boyle

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