U.V. detectable flame retardant

Details U.V. detectable flame retardant U.V. detectable flame retardant

1990-08-15

1991-06-11

Lechert, Jr., Stephen J.

Compositions

Fire retarding

For wood or cellulosic material other than textile

252608, 106 1812, 106 1816, 106 1817, 106 1822, C09K 2100

Patent

active

050230190

ABSTRACT:
A flame retardant or fire retardant preparation can be employed with fibrous material containing either cellulosic fibers, non-absorbent fibers, or blends thereof. The preparation is formed of an aqueous solution of ammonium sulfate, a metasilicate salt serving as binder, and ammonium phosphate (MAP or DAP). An ultraviolet inhibitor is preferably included in the solution. A wetting agent promotes penetration of the solution into cellulosic fibers. An ultraviolet fluorescent agent permits non-destructive testing of articles after treatment. For increased sensitivity, the preferred fluorescent agent is a substituted 2,2' disulfonic acid sodium salt.

REFERENCES:
patent: 4339238 (1982-07-01), Fringeli
patent: 4525513 (1985-06-01), Hochberg
patent: 4564650 (1986-01-01), Hochberg
patent: 4737406 (1988-04-01), Bumpus
patent: 4824483 (1989-04-01), Bumpus

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