Title: Fire retardant fabrics and method for preparation thereof

Abstract: A process for rendering cellulose and cellulose containing fabrics fire resistant by first impregnating the fibers with a solution of an aminoplast resin, an acid and an effective amount of a dialkyl phosphono methylol alkylamide to produce fire retardancy in the resulting fabric having the formula ##STR1## wherein R is lower alkyl having 1 to 6 carbon atoms and x is an integer from 1 to 3 and polymerizing the resin while the fibers are wet and swollen. The fabric is then cured, washed and dried. The fabric obtained from this process possesses high fire-retardancy values, soft hand, and tensile values similar to that of the untreated fabric.

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Inventors: Duke, Marshall W. (Aiken, SC, US)

Application Number: 550295
Filing Date: 1975-02-18
Publication_date: 1977-06-07
Assignee: United Merchants and Manufacturers, Inc. (New York, NY)
Primary Class(es): 8/182 8/183, 427/393.3, 428/921
Other Classes:
US Patent Ref:

2709141	May, 1955	Burks	428/254.
3374107	Mar, 1968	Cotton	427/377.
3421923	Jan, 1969	Guth	427/337.
3523033	Aug, 1970	Verburg et al.	427/354.
3546006	Dec, 1970	Verburg et al.	427/377.
3577270	May, 1971	Guth et al.	427/381.
3754981	Aug, 1973	Nachbur et al.	427/381.
3936562	Mar, 1976	Duke et al.	428/921.

Other Refs:
Primary Examiner: Levy, Donald
Assistant Examiner: Schulz, W.
Attorney: Caputo; Michael A., McGann; John P.