Method for imparting flame resistance to wood surfaces

Details Method for imparting flame resistance to wood surfaces Method for imparting flame resistance to wood surfaces

1986-05-23

1988-05-03

Buffalow, Edith

Stock material or miscellaneous articles

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Of carbohydrate

428541, 428921, 427297, 427393, 4273933, 427440, 106 1816, 106 1817, B32B 2104

Patent

active

047419717

ABSTRACT:
Methods for impregnating the pores of at least partially dried wood with a phosphorus nitride, particularly P.sub.3 N.sub.5, to provide flame resistance are described. Preferably liquid slurries of the phosphorus nitride are impregnated into the exposed pores of the wood using pressure or preferably a partial vacuum in a confined space which removes air from the pores and allows the slurry to impregnate the wood. The liquid is then removed from the wood.

REFERENCES:
patent: 3160515 (1964-12-01), Goldstein et al.
patent: 3342629 (1967-09-01), Martin
patent: 3501339 (1970-03-01), Gurgiolo
patent: 4044104 (1977-08-01), Cremer et al.
patent: 4182794 (1980-01-01), Smith et al.
patent: 4276343 (1981-06-01), Cremer et al.

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