Aqueous dispersions of perfluoroalkyl esters for treating textiles
AssigneeE. I. Du Pont de Nemours and Company
InventorsRobert Harold Dettre, Edward James Greenwood
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Abstract
Dry soil resistance and nonflame propagating characteristics are insured in textile fibers by applying thereto an aqueous dispersion containing a perfluoroalkyl ester of a carboxylic acid of from 3 to 30 carbon atoms. After the dispersion is applied, the fibers are dried at between 120.degree. to 170.degree. C.
Claims2
An aqueous dispersion of a composition consisting essentially of a perfluoroalkyl ester of a fluorinated alcohol having the formula C.sub.n F.sub.2n.sub.+1 (CH.sub.2).sub.m OH, wherein n is 6 to 14 and m is 2, and citric acid, the ester being volatile at about 200.degree. C to 300.degree. C, the composition forming up to about 60% of the total weight of the dispersion.
Dependencies are inferred from the claim text.