US3637409A - Manufacture of flame-resistant nonwoven fabrics - Google Patents

Manufacture of flame-resistant nonwoven fabrics Download PDF

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Publication number
US3637409A
US3637409A US748881A US3637409DA US3637409A US 3637409 A US3637409 A US 3637409A US 748881 A US748881 A US 748881A US 3637409D A US3637409D A US 3637409DA US 3637409 A US3637409 A US 3637409A
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fabric
bonding agent
batting
bonded
parts
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US748881A
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Ludwig Hartman
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Carl Freudenberg KG
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Carl Freudenberg KG
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/655—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions characterised by the apparatus for applying bonding agents
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/47—Oxides or hydroxides of elements of Groups 5 or 15 of the Periodic Table; Vanadates; Niobates; Tantalates; Arsenates; Antimonates; Bismuthates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • D06M15/267—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof of unsaturated carboxylic esters having amino or quaternary ammonium groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y10S428/921—Fire or flameproofing

Definitions

  • This invention relates to production of nonwoven fabrics. It more particularly refers to a novel method of producing such nonwoven fabrics which are substantially flameproof or at least significantly flame resistant.
  • Nonwoven fabrics bonded with a bonding material are, to a certain extent, already provided with a flame retardant from the outset in the form of the bonding agent. They catch fire less easily than the same fiber matting containing no bonding agent. However, once such a material has been subjected to fire, the bonding agent contained in it melts. It is then no longer possible to put out the fire by beating with the hands or throwing blankets over it. Furthermore, if such a fabric were compressed in such a manner, the melted plastic of the bonding agent would be pressed against the skin of the wearer, thus causing very severe burns.
  • nonwoven fabrics bonded with bonding agents are relatively difficult to set on fire, once they have caught on fire, it is extremely difficult to extinguish the fire, particularly because of the dripping, molten, and sometimes burning, bonding agent.
  • one aspect of this invention resides in a novel flameproof composition impregnant suitable for use in combination with the nonwoven fabrics to bond such and to render such substantially flame resistant.
  • This impregnant composition includes water, a vinylidene chloride resin, a dispersant, and antimony trioxide.
  • stabilizers and inhibitors of the usual, conventionally known and used type are suitably provided in the impregnant composition so as to be incorporated in the bonding agent and therefore in the bonded nonwoven fabric.
  • exemplary of this type of materials are oxidation inhibitors, heat stabilizers, ultraviolet and visible light stabilizers, etc.
  • a flameresistant, bonded, nonwoven fabric by forming a bonded batting of substantially continuous filaments by the socalled spin bonded method.
  • This method utilizes the inherent tackiness and weldability of certain spun continuous filaments so that when such filaments are laid down upon a suitable substrate into a nonwoven fabric batting, the filaments bond to each other through their inherent tackiness, substantially at the points where the filaments cross each other.
  • This bonded fabric is suitable for use in the second impregnation process set forth above wherein a flameproofing bonding agent comprising vinylidene chloride polymer and antimony trioxide are impregnated into a prebonded nonwoven fabric.
  • another aspect of this invention resides in a novel process of producing a flameproof or flame-resistant nonwoven fabric which process comprises producing a conventional nonwoven batting; impregnating said batting with a conventional binder in smaller proportion than is conventionally used; drying this first impregnant; impregnating the thus partially bonded fabric with a second impregnant containing vinylidene chloride polymer and antimony trioxide; drying this second impregnant while longitudinally stretching the impregnated fabric; wetting the longitudinally stretched, dried fabric with water; and drying such wet fabric while stretching such in a transverse direction; whereby to achieve final fabric dimensions substantially the same as those of the unimpregnated fabric.
  • the fabric made according to this invention is flame retardant and is substantially free of the hot binder melting and dripping problems of prior art fabrics.
  • the conventional bonding agents which are used are mainly of the natural and synthetic rubber latex type, as well as acrylic resins.
  • the first impregnation of the batting referred to above is with only about half of the required amount of bonding agent (i.e., latex or acrylic resins).
  • this flame-retardant bonding agent impregnant must contain optical brighteners, light stabilizers, heat stabilizers, oxidation inhibitors and/or whatever other known materials are considered necessary adjuvants for use with vinylidene chloride polymer resins.
  • the amount of polyvinylidene chloride applied to the fabric that gives optimum fire drip resistance has to be selected according to the particular thermoplastic filaments in the fabric and according to the amount of binding agent in the fabric. it can be said, however, that it is often found satisfactory to have from about 5 to 25 parts by weight polyvinylidene chloride per parts by weight synthetic thermoplastic fibers. Best results are often obtained when the amount is from about 10 to 20 parts per 100 by weight fibers.
  • the total amount of polyvinylidene chloride applied to the fabric may be greater than about 25 parts by weight, based 100 parts by weight of all the fibers in the fabric, since the presence of polyvinylidene chloride may additionally be useful to increase the fiber resistance of other fibers in the fabric.
  • Antimony oxide is included to increase the fire-resistance of the fabrics and various other additives can be included with the polyvinylidene chloride. It is generally desirable to include one or more optical brightening agents in the dispersion containing the polyvinylidene chloride, since otherwise the fabric is liable to have rather poor fastness to light.
  • a fabric that contains binding agent and also polyvinylidene chloride impregnant may sometimes have a rather poor hand, i.e., feel rather coarse, although conditions can be chosen so that fabrics with a good hand are obtained. If the use of polyvinylidene chloride and binding agent along in the amounts desired to give optimum fire properties do result in a fabric having a rather poor hand, this hand can be considerably improved by subjecting the fabric to the additional step of mechanically dislocating polymer films in the fabric, i.e., of breaking up any films of polyvinylidene chloride or binding agent that have formed.
  • plasticizer with the polyvinylidene chloride.
  • the amount of plasticizer used must, however, be selected carefully, since if too little is used no great advantage is obtained, and if too much is used it markedly reduces the drip resistance of the polymeric materials in the fabric. It is highly surprising, in fact, that one can select an amount of plasticizer that improves the hand without substantially affecting the fire drip resistance. The exact amount depends, of course, upon the grade of polyvinylidene chloride and upon the particular plasticizer.
  • the preferred plasticizer used is didecyl phthalate and this is preferably used in an amount substantially of four parts didecyl phthalate to three parts polyvinylidene chloride by weight.
  • H6. 1 is an elevation of a schematic view of the process of this invention.
  • FIG. 2 is a plan view of the schematic diagram of FIG. 1.
  • the padder consists (as can also be seen from Austrian Pat. No. 217,000) of three rolls, which can be covered with felt.
  • the lower roll is partially immersed in a liquid containing the impregnating agent.
  • the impregnating agent is absorbed by the felt covering of the lower roll.
  • the bonding agent mixture is simultaneously pressed into the mat by the wet felt covering.
  • the already partially bonded mat passes through the gap of a pair of rolls of a padding machine.
  • the lower roll plunges into a dispersion G whose main components are polyvinylidene chloride and antimony trioxide. These components (together with optical brighteners and suitable inhibitors and stabilizers) thus get into the mat.
  • the mat is then passed over hot steel rolls C (so-called cylinder dryers) to dry it.
  • D represents auxiliary rolls which aid in the guidance of the mat B. It is of decisive importance that the cylinder rolls C rotate more rapidly than the rolls of the padder A. In this manner the mat is drawn longitudinally, while its width is simultaneously diminished,
  • FIG. 2 where it can be seen how the web B is pulled lengthwise between the padder A and the dry ing rolls C and thus becomes narrower.
  • the mat After passing through the drying rolls C, the mat is dry. However, it is then again moistened in a second padder E (in padder E, the lower roll is immersed in plain water). Then it is dried again in a chamber F in a so-called hot-air tenter frame. But as the mat passes through the drying chamber F, the tenter frame draws it apart again, but this time in width, so that it reattains its original breadth.
  • EXAMPLE I A mat prepared according to example 2 of British Pat. No. 1,055,187 and having a weight of 30 g./m. is given a preliminary impregnation with an acrylic resin (commercial name PRIMAL) in such a manner that, after drying at 140 C., the weight increases to 50 g./m. A mat thus impregnated is then postimpregnated with the following mixture:
  • Solid Liquid compound supplied by Hoesch AG and used as a light stabilizer 2.5 2.5 Emulsifier EP (an emulsifier for the epoxy compound 0.25 1 Water 487 Aerosil (silica white pigment) 4.78
  • Solid Liquid Sb,0, 480 Pigment 20 Dispersing agent A 20 66 Water 453 lmpregnation with the above mixture is performed in a felt padding machine. Both rolls are pressed together so that the mat weight, after drying at C., increases from 50 to 58 g./m. Drying takes place on three hot metal cylinders. The metal cylinders rotate at a speed of 45 rpm, while the padding rolls rotate with a speed of only 30 mJmin. In this manner the original mat 1.70 m. wide is stretched in length so that its width amounts to only 100 cm.
  • a mat dried with a twofold draft in this manner is not only flameproof but is also very soft.
  • EXAMPLE II The process described in example I was repeated except that the initial fabric, before any impregnation, had a weight of 25 grams per square meter and after impregnation with the acrylic resin had a dry weight of 44 grams per square meter and after impregnation with the polyvinylidene chloride containing dispersion it had a dry weight of 61 grams per square meter.
  • the dispersion used was the same as that given in example I except that it additionally contained 13 parts didecyl phthalate as a plasticizer, this being introduced into the dispersion with 100 parts water.
  • This fabric has fire drip resistance at least as good as that of the fabric produced in example I and had a particularly satisfactory hand.
  • the initial rolls are rotated at a peripheral speed of 30 meters per minute while the takeoff rolls all rotate at a peripheral speed of 45 meters per minute.
  • This causes a fleece that is initially 170 centimeters wide to be stretched so that its width is only 100 centimeters.
  • the degree of stretching is between one-third and one-half.
  • the fleece is stretched out again to 170 centimeters.
  • the fleece increases in length considerably as a result of the initial stretching, 300 meters being extended, for example, to 400 meters, but is only partially restored to its original length during the second stretching, for example going back to 380 meters.
  • the fabrics to which the invention may be applied are usually nonwoven fabrics, but may be woven or knitted fabrics.
  • the fabrics may be of staple fibers or of continuous filaments, or of mixtures of both, and in this specification we use the term fiber to cover both staple fibers and continuous filaments except where the context demands otherwise.
  • the fabrics may be wholly of fibers of synthetic thermoplastic material or they may be of mixtures of such fibers with other fibers.
  • the invention is of particular value when applied to fabrics consisting entirely of continuous thermoplastic synthetic filaments such as the fabrics made by the processes described in British Pat. specification No. 1,055,187.
  • Such fabrics can be made very thin and of very light weight and very porous, with the result that they are very prone to burn rapidly.
  • their fire and fire drip resistance is increased greatly.
  • a bonded nonwoven textile fabric comprising forming a batting of substantially randomly disposed textile fibers and bonding the fibers of said batting together predominantly at their crossing points; the improvement whereby rendering said nonwoven textile fabric substantially flame retardant, which comprises impregnating said bonded nonwoven textile fabric with a liquid form impregnant containing a flame retardant consisting essentially of vinylidene chloride polymer bonding agent and antimony trioxide; simultaneously drying and unidirectionally stretching said impregnated bonded fabric; impregnating said dried, unidirectionally stretched fabric with water; and simultaneously drying and stretching said water-impregnated fabric in a direction transverse to said unidirectional stretching, wherein said stretching is in an amount sufficient to break at least many of the bonding agent bonds between fibers of said fabric.
  • said flame-retardant impregnant contains sufficient vinylidene chloride polymer to produce a final fabric having about 20 to 40 parts by weight of vinylidene chloride polymer to parts of said conventional bonding agent and about five to 25 parts by weight per 100 parts of fiber.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
US748881A 1967-05-13 1968-07-30 Manufacture of flame-resistant nonwoven fabrics Expired - Lifetime US3637409A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF0052401 1967-05-13
DEF0053156 1967-08-05

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US3637409A true US3637409A (en) 1972-01-25

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US (1) US3637409A (de)
CH (1) CH481243A (de)
DE (2) DE1619044A1 (de)
FR (1) FR1574864A (de)
GB (1) GB1222545A (de)
NL (1) NL6806776A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763644A (en) * 1972-05-09 1973-10-09 Eastman Kodak Co Flame retardant textiles
US3900625A (en) * 1973-03-26 1975-08-19 Griffolyn Company Inc Self-extinguishing composite laminate
US3935336A (en) * 1972-03-09 1976-01-27 Th. Goldschmidt Ag Process for making carrier sheets impregnated with aminoplast condensation resins
US4062818A (en) * 1975-03-21 1977-12-13 International Paper Company Composition for imparting flame resistance and water repellency to textiles
US4624320A (en) * 1984-01-06 1986-11-25 Romaine John W Fire blanket
US5277935A (en) * 1992-01-29 1994-01-11 Worthen Industries, Inc. Method of coating with multiple layers of latex to produce fire resistant hose ducting fabric
US5849210A (en) * 1995-09-11 1998-12-15 Pascente; Joseph E. Method of preventing combustion by applying an aqueous superabsorbent polymer composition
US5912196A (en) * 1995-12-20 1999-06-15 Kimberly-Clark Corp. Flame inhibitor composition and method of application
US20070006383A1 (en) * 2005-07-06 2007-01-11 Ogle Steven E Mattress with substantially uniform fire resistance characteristic
US20070202294A1 (en) * 2000-03-13 2007-08-30 L&P Property Management Company Protective fire retardant component for a composite furniture system
US20080107148A1 (en) * 2003-11-04 2008-05-08 L&P Property Management Company Thermal properties testing apparatus and methods
US20090126119A1 (en) * 2000-03-13 2009-05-21 L&P Property Management Company, A Delaware Corporation Fire resistant insulator pad
US20110065347A1 (en) * 2009-09-16 2011-03-17 Havird William D Flame retardant, cotton/thermoset fabrics
RU2689600C1 (ru) * 2018-03-27 2019-05-28 Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ Огнезащитный текстильный материал

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943079A (en) * 1974-03-15 1976-03-09 Monsanto Company Discontinuous cellulose fiber treated with plastic polymer and lubricant
US4459337A (en) * 1982-06-01 1984-07-10 E. I. Du Pont De Nemours And Company Coated polyamide monofilament
DE3639573A1 (de) * 1986-11-20 1988-05-26 Basf Ag Verfahren zum verfestigen und flammfestausruesten von nadelvliesbodenbelaegen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA501066A (en) * 1954-03-30 F. Cooke Theodore Method of treating fibrous cellulosic materials to impart flame resistance thereto, compositions therefor and products thereof
US2697678A (en) * 1952-04-07 1954-12-21 Chicopee Mfg Corp Fabric and method of producing same
US3485695A (en) * 1968-01-26 1969-12-23 Johnson & Johnson Method of making a bonded poriferous non-woven textile fabric

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA501066A (en) * 1954-03-30 F. Cooke Theodore Method of treating fibrous cellulosic materials to impart flame resistance thereto, compositions therefor and products thereof
US2697678A (en) * 1952-04-07 1954-12-21 Chicopee Mfg Corp Fabric and method of producing same
US3485695A (en) * 1968-01-26 1969-12-23 Johnson & Johnson Method of making a bonded poriferous non-woven textile fabric

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935336A (en) * 1972-03-09 1976-01-27 Th. Goldschmidt Ag Process for making carrier sheets impregnated with aminoplast condensation resins
US3763644A (en) * 1972-05-09 1973-10-09 Eastman Kodak Co Flame retardant textiles
US3900625A (en) * 1973-03-26 1975-08-19 Griffolyn Company Inc Self-extinguishing composite laminate
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Also Published As

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DE1635497A1 (de) 1971-04-08
GB1222545A (en) 1971-02-17
DE1619044A1 (de) 1971-03-25
NL6806776A (de) 1968-11-14
CH1122967A4 (de) 1969-07-31
CH481243A (de) 1969-12-31
FR1574864A (de) 1969-07-18

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