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US 4,054,695 AGranted
Textile fiber having improved flame retardancy properties
AssigneeUnion Carbide Corporation
InventorGordon Carlton Johnson
Life of this patent
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Abstract
Synthetic organic fibers, which have been silicone treated to improve other properties, are treated with certain chelators, such as, ethylenediamine tetraacetic acid and its salts, as flame retarders to reduce their flammability.
Claims28
The process of improving the flammability retardancy of a silicone treated synthetic organic fiber material comprising applying on the said surface of material a flammability retarding amount treated of a flammability retarder of the formula:
- ##STR3## wherein x has a value of from 2 to 4;
- n has a value of from 1 to 5;
- R is carboxyl or hydroxyl or a salt, ether or ester thereof.
A silicone treated synethetic organic fiber material having on the surface thereof a flammability retarder of the formula:
- ##STR4## wherein x has a value of from 2 to 4;
- n has a value of from 1 to 5;
- R is carboxyl or hydroxyl or a salt, ether or ester thereof said coating being present in an amount sufficient to retard flammability of said material.
Dependencies are inferred from the claim text.