Flame-retardant non-woven textile article and method of making

Details Flame-retardant non-woven textile article and method of making Flame-retardant non-woven textile article and method of making

1995-05-31

1997-03-11

Raimund, Christopher

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

28104, 442408, 442414, D04H 108

Patent

active

056099509

ABSTRACT:
The invention refers to a flame-retardant non-woven textile article produced by bonding of a fleece without binder and is characterized in that the fleece contains cellulosic fibers in which at least one flame-retardant compound containing phosphorus is incorporated. The fleece is preferably bonded using water jets. The products according to the invention display excellent flame-retardation and good tear strength properties even with low area weights. The cellulosic fibers can be used either on their own or in blends with other fibers particularly high temperature resistant non-melting fibers. Compounds from the group of esters, esteramides and/or amides of pyrophosphoric acid from monothiono-, dithiono-, trithiophosphoric acid, triphosphoric acid, monothiono-, dithiono-, trithiono- and/or pentathiotriphosphoric acid or rather Bis-(2-oxo-1,3,2-dioxaphosphinanyl)-oxide, Bis-(2-thiono-1,3,2-dioxaphosphinanyl)-oxide or 2-oxo-1,3,2-dioxaphosphinanyl-2' thiono-1',3',2'-dioxaphosphinanyl-oxide are suitable as flame-retardant compounds containing phosphorus. Bis-(5,5-dimethyl-2-thiono-1,3,2-dioxa-phosphinanyl-oxide is particularly well suited.

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