Fire retardant polyolefin fibers and fabrics

Details Fire retardant polyolefin fibers and fabrics Fire retardant polyolefin fibers and fabrics

1982-04-30

1985-07-30

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524339, 524343, 524371, 524469, C08K 503, C08K 534

Patent

active

045322783

ABSTRACT:
Fibers and fabrics formed from polypropylene as well as other polyolefins and high polymers, are rendered flame retardant by the addition of a bromophenyl compound having the following formula: ##STR1## wherein n is 0 or 1; X is bromine, hydrogen, hydroxyl, or alkyl; and wherein the alkyl portion of these groups may contain hydroxyl and/or oxygen; and wherein the alkyl is preferably a lower alkyl (C.sub.1 -C.sub.4); and wherein there is at least one bromine for each phenyl radical; and a tris (hydroxybenzyl) isocyanurate, particularly tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate. The composition of formula (I) and the isocyanurate are blended into the polymer in the forming operations and the polymer blend is thermally extruded to form a fiber which fiber exhibits exceptionally high flame retardancy, as well as a good white appearance upon extrusion so as to be readily dyed without grey overtones.

REFERENCES:
patent: 3331797 (1967-07-01), Kopetz et al.
patent: 4049654 (1977-09-01), Spivack
patent: 4203882 (1980-05-01), Bertelli et al.
Tabor, T. and Bergman, S., "Decabromodiphenyl Oxide-A New Fire Retardant Additive for Plastics", Fire Retardants: Proceedings of 1974 International Symposium on Flammability and Fire Retardants, May 1-2, 1974.

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