The United States of America As Represented by the Secretary of

George L Drake

Leon H Chance

Darrell J Donaldson

Wilson A Reeves

Donald J Daigle

Arlen W Frank

Gordon J Boudreaux

Jerry P Moreau

John V Beninate

Judy D Timpa

Floyd L Normand

Compositions and processes for producing flame retardant textile

Textile treating compositions containing the elements phosphorus, nitrogen, and bromine and the processes for imparting flame resistance to organic fibrous materials have been prepared. This is accomplished by impregnating the textile treating compositions consisting of (1) tris(hydroxymethyl)phosphine mixed with nitrogenous compounds containing at least two members of the group hydrogen and methylol radicals (--CH.sub.2 OH) attached to trivalent nitrogen atoms, or (2) soluble methylol phosphine adducts which contain one or more methylol phosphine radicals (P--CH.sub.2 OH) prepared by reacting tris(hydroxymethyl)phosphine with an amide or amine which contains one or more hydrogens attached to a trivalent nitrogen with an organic bromine containing material with at least 10% bromine in the form of bromine atoms attached to carbon atoms, in proportions selected so that generally the phosphorus contained in structures of the group (--CH.sub.2).sub.3 P amount to a small portion of the total weight of the mixture, and heating to cause insolubilization in or on the fibrous structure.

Phosphorus, nitrogen, bromine containing polymers and process for

2,4,6-Tris(carbamoylmethylamino)-1,3,5-s-triazine, abbreviated TCMT, is prepared by the reaction of 2,4,6-tris(carbethoxymethylamino)-1,3,5-s-triazine with ammonia. The methylol derivative of TCMT is prepared and applied to cotton textiles and blends of cotton and polyester to impart wrinkle recovery thereto.

2,4,6-Tris(carbamoylmethylamino)-1,3,5,-s-triazine

Methylol phosphines, methylol phosphines in combination with amine or amido compounds or water soluble adducts of these methylol phosphines and amides or amines when mixed and reacted with mono, di or polyisocyanates wherein the isocyanate groups are attached to carbon atoms are particularly valuable for the preparation of thermosetting flame resistant polymers. The polymers which are produced are crosslinked phosphorus and nitrogen containing polymers in which the reoccurring structure units each contain a phosphorus atom, that is a component of a radical of the group tris(methylene)-phosphine (--CH.sub.2).sub.3 P and is linkd to at least one isocyanate radical by connecting urethane structure. The polymer forming solutions are also valuable for the preparation of flame-, glow-, wrinkle- and shrink-resistant textiles by impregnating fabrics with these solutions and causing reaction and polymer formation by application of heat.

Fire resistant organic products and method for production

Novel quaternary arylaminoalkyl phosphonium salts having the formula [(ArNHCHR).sub.4 P].sup.+X.sup.-, where R is a radical selected from the group consisting of hydrogen, alkyl and aryl, Ar is aryl, and X is halogen, are prepared by the reaction of primary aromatic amines with quaternary hydroxyalkyl phosphonium salts having the formula [(HOCHR).sub.4 P].sup.+X.sup.-, where R and X are similarly defined. The compounds of this invention are useful as flame retardant for cotton, plasticizers, lubricant additives, and surface-active agents.

Quaternary arylaminoalkyl phosphonium salts

Derivatives of dicarboxylic acids containing a phosphono group in the alpha and alpha prime position have been made. These have a wide variety of uses as intermediates. Specifically, one of the new compounds is useful in imparting wrinkle resistance as well as flame retardance to cellulosic textiles.

.alpha.,.alpha.'-Bis-(phosphono)dicarboxylic acid derivatives

Process for the preparation of quaternary arylaminoalkyl phosphonium

Organic fibrous materials especially cellulosic and other textiles are rendered flame resistant upon treatment with an emulsion containing either (1) an organic bromine containing material having at least 65% bromine such as polyvinylbromide, (2) polyvinylbromide and an N-methylol agent such as trimethylolmethylglycoluril, (3) polyvinylbromide and a metal oxide such as antimony oxide, and (4) polyvinylbromide, N-methylol agent and metal oxide. The emulsions are applied to various fibers by the pad-dry-cure technique. The finish contained the added quality of wrinkle resistance and rot resistance. The treated textiles, including polyester/cotton blends remain highly flame resistant through innumerable laundry cycles.

Growing community of inventors

Metairie, LA, United States of America

George L Drake