Abstract:
A process is proposed for the fireproofing treatment of textile materials by impregnating them initially with a melamine-formaldehyde resin or organosilicon substances, and then with a solution of a complex compound of the ammonia salt of amidoalkylphosphonic acid with ammonium chloride. Materials treated in accordance with the invention have reduced combustibility and low toxicity of the gases given off during combustion.
Abstract:
The permanence of the flame-resistant finish of fibre materials, in particular those based on cellulose, is improved if a phosphono compound which contains an N-methylol group. is used together with an organic carboxylic acid as the finishing agent. If oxalic acid in particular is used as the carboxylic acid, the finished fibre material can be stored in a damp environment for a prolonged period of time without intermediate washing being necessary. The tendency of the finish to hydrolyse in a damp atmosphere is reduced by using the organic carboxylic acid instead of a mineral acid.
Abstract:
Manufacture of flame-retardant regenerated cellulose fibres by adding one or more flame-retardant phosphorus comounds to viscose, extruding the viscose-containing mixture thus obtained into a spinning bath, stretching and after treating the resulting filaments or staple fibres. The flame-retardant fibres are made by using as the flame-retardant agent a combination of compounds of the general formula:PN.sub.x O.sub.yin which x stands for a number between 0.09 and 1.7 and y stands for a number between 1.2 and 0, preferably approaching zero as the values of x increase towards 1.7 (component A), with compounds which are selected from phosphoric acid alkylesters, preferably halogen-containing phosphoric acid alkylesters; cyclophosphazenes, polyphosphazenes; tetrakis-(oxymethyl)-phosphonium chloride or hydroxide or its condensation products with ammonia, oxymethylamine, urea or other amines or amides, vinyl compounds containing halogen, phosphonitrogen or phosphorus; and tris-(1-aziridinyl)-phosphine oxide or N-(oxymethyl)-3-phosphonopropionamide, if desired in further combination with a condensation resin (component B).
Abstract:
A COMPOSITION FOR RENDERING COLLULOSIC MATERIAL FLAME RETARTDANT IS PREPARED BY MAINTAINING THE INTERMEDIATE REACTION PROUCT 3-(DI-ISOPROPYLPHOSPHONO) PROPRIONAMIDE IN AQUEOUS SOLUTION BELOW ITS MELTING POINT FOR METHYLOLATION WITH FORMALDEHYDE TO FORM THE N-HYDROXYMETHYL DERIVATIVE, AND THEN FORMULATING THIS DERIVATIVE WITH AN AQUEOUS METHYOLMELAMINE RESIN SOLUTION AND AN ACID CATALYST FOR PAD-DRY-CURE APPLICATION TO THE CELLULOSIC MATERIAL. CELLULOSIC MATERIAL TREATED WITH THE RESULTING COMPOSITION IS RENDERED SELF-EXTINGUISHING AND RETANS THIS CHARACTERISTIC AFTER FIFTY WASHINGS.
Abstract:
A method of preparing an aqueous resinous system, and the resinous system produced by the method is described wherein about 75-100 parts of an aldehyde such as formaldehyde, about 100-125 parts of phosphoric acid, about 15-25 parts of an alkanolamine such as triethanolamine, about 30-50 parts of urea, and about 20-40 parts of melamine, based on 100-200 parts of water, are reacted to provide an aqueous resinous solution which will cure at room temperature or upon application of heat, permitting its use as a flexible, pliable, waterproof, nonburning coating, especially for textiles and paper containing materials. The solution may be applied by impregnation or as a coating to the fabric or an underlayer to the fabric. In a special embodiment, there is provided a method for providing fire retardancy to a textile fabric applied over an underlayer such as muslin, by applying a fire retardant solution to the underlayer. There is also provided a fire retardant spray solution.
Abstract:
Smolder resistance is imparted to cotton and cotton-containing fabrics by applying a certain boron-nitrogen-phosphorus system to the fabric, employing conventional equipment. An inorganic boron compound is placed in solution with a phosphorus-containing compound, then a nitrogen-containing compound is added. The aqueous mixture is applied using conventional textile equipment, dried, and cured by standard methods.
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.
Abstract:
A PROCESS FOR THE FLAMEPROOFING OF TEXTILES BY TREATING THE TEXTILE WITH A NOVEL CLASS OF TRIAZINYLAMINOALKYL PHOSPHONATES AND THE CROSSLINKING OF THE PHOSPHONATES TO YIELD A FIRE RETARDANT FINISHED FOR THE TEXTILE IS DISCLOSED. THESE TRIAZINYLAMINOALKYL PHOSPHONATES ARE FOUND TO BE LOW IN COST AND OF MINIMAL TOXICITY AND THEIR USE OF THE FLAMEPROOFING OF TEXTILES PROVIDES HIGHLY DURABLE FINISHES.
Abstract:
THE PRESENT INVENTION A PROCESS FOR FLAME RETARDING TEXTILES WHICH COMPRISES: (1) APPLYING TO A TEXTILE AN AQUEOUS SOLUTION CONSISTING OF (A) A PHOSPHONATE HAVING AT LEAST ONE CARBON-BONDED PRIMARY ALCOHOL GROUP, (B) DIMETHYLOLDIHYDROXYETHYLENE UREA, AND (C) A CURING CATALYST; AND (2) CURING THE PHOSPHONATE AND UREA ON THE TEXTILE AND THEREBY RENDERING THE TEXTILE FLAME RETARDANT.
Abstract:
The present invention provides polymer modified aqueous urea formaldehyde resin (UF resin) binder compositions useful in making a treated glass mat, e.g., for roofing shingles, wherein the polymer modifier is an multistage aqueous emulsion acorn copolymer comprising one protuberant polymer stage containing phosphorous acid groups and one or more other polymer stage comprising an addition copolymer incompatible with the protuberant polymer stage, wherein the multistage aqueous emulsion copolymer has a measured Tg of from −60 to 25° C., or, preferably from 31 30 to 12° C. and, further wherein the weight ratio of the total of monomers used to make the one or more other polymer stage to the total amount of monomers used to make the protuberant polymer stage ranges from 3:1 to 50:1, or, preferably, from 3:1 to 30:1 or, more preferably, from 3:1 to 20:1, or, even more preferably, from 8:1 to 12:1.