Phosphonoxycarboxamide flame retarding compositions
AssigneeStauffer Chemical Company
InventorsEdward N. Walsh, Ralph B. Fearing
Life of this patent
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Abstract
Novel phosphonxycarboxamides of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are selected from the group consisting of aryl and alkyl having from 1-6 carbon atoms and may be the same or different; R.sup.3 represents hydrogen or --CH.sub.2 OH; R.sup.4 represents hydrogen, --CH.sub.3, --CH.sub.2 OH, or --C.sub.2 H.sub.4 OH, R.sup.5 represents an alkyl group having from 1-5 carbon atoms; and n represents 1 or 2 are useful as flame retardant agents for textile materials.
Claims7
A flame-retardant composition comprising:
- (1) at least one compound represented by the formula:
- ##STR24## wherein R.sup.1 and R.sup.2 are selected from the group consisting of aryl and alkyl having from 1-6 carbon atoms and may be the same or different;
- R.sup.3 represents hydrogen or --CH.sub.2 OH;
- R.sup.4 represents hydrogen, --CH.sub.3, --CH.sub.2 OH, or --C.sub.2 H.sub.4 OH, R.sup.5 represents an alkyl group having 1-5 carbon atoms and n represents 1 or 2;
- (2) an aminoplast;
- and
- (3) an acid catalyst.
A flame-retardant composition in accordance with claim 6 wherein said composition is an aqueous composition and the concentration of said aminoplast ranges from about 10 to about 60 percent by weight of said at least one compound, the concentration of said catalyst ranges from about 0.01 to about 5 percent by weight of said at least one compound, and the total concentration of said at least one compound, said aminoplast and said catalyst is adjusted to a value which will achieve a phosphorous uptake on the substrate being treated ranging from about 1 to about 5% by weight.
A process for imparting flame retardance to textile materials comprising the steps of:
- (1 ) impregnating the textile material with a flame-retardant composition comprising;
- (a) at least one compound represented by the formula:
- ##STR25## wherein R.sup.1 and R.sup.2 are selected from the group consisting of aryl and alkyl having from 1-6 carbon atoms and may be the same or different;
- R.sup.3 represents hydrogen or --CH.sub.2 OH;
- R.sup.4 represents hydrogen, --CH.sub.3, --CH.sub.2 OH, or --C.sub.2 H.sub.4 OH;
- R.sub.5 represents an alkyl group having from 1-5 carbon atoms and n represents 1 or 2;
- (b) an aminoplast;
- and
- (c) an acid;
- and
- (2) heating said impregnated textile material sufficiently to cure said flame-retardant composition.
Dependencies are inferred from the claim text.