EP0729526B1 - Fiber blend - Google Patents

Fiber blend Download PDF

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Publication number
EP0729526B1
EP0729526B1 EP94931564A EP94931564A EP0729526B1 EP 0729526 B1 EP0729526 B1 EP 0729526B1 EP 94931564 A EP94931564 A EP 94931564A EP 94931564 A EP94931564 A EP 94931564A EP 0729526 B1 EP0729526 B1 EP 0729526B1
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EP
European Patent Office
Prior art keywords
fiber blend
fibers
producing
melamine
melamine resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP94931564A
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German (de)
French (fr)
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EP0729526A1 (en
Inventor
Otto Ilg
Dominick A. Burlone
William Theuer
Heinz Berbner
Gernot Herbst
Karl Ott
Hans Dieter Zettler
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Basofil Fibres LLC
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BASF SE
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2904—Staple length fiber
    • Y10T428/2909—Nonlinear [e.g., crimped, coiled, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]

Definitions

  • the invention relates to a refractory staple fiber blend of melamine resin fibers and aramid fibers.
  • Staple fibers from melamine / formaldehyde condensation products are known, e.g. from DE-B 23 64 091, wherein solutions of other fiber-forming polymers can be added to the solution of the melamine resin in the spinning process for producing the melamine resin fibers. They are characterized by incombustibility, flame resistance and high heat resistance. Because of these properties, they are used in the manufacture of refractory textiles. For some applications, however, the tensile strength of the fibers is not sufficient; in other areas of application, the low abrasion resistance proves to be disadvantageous.
  • Fibers made from polycondensation products of iso- or terephthalic acid and phenylenediamine have also been known for a long time. They are also characterized by favorable fire behavior. When processing into yarn using the carding process, however, the low processing speed of the aramid staple fibers proves to be disadvantageous.
  • the invention was therefore based on the object, on the one hand, of improving the properties of melamine resin fibers and, on the other hand, of the properties of aramid fibers.
  • Both types of fibers can contain the usual additives such as fillers, dyes, pigments, metal powder and matting agents.
  • the two types of fibers are usually mixed on conventional fiber mixing apparatuses as described in nonwovens, Georg Thieme Verlag. One starts from staple fibers of a usual length of 1 to 20 cm. These are usually fed to a carding machine via a conveyor and premixed there. The mixing is then generally completed in a carding machine. The wadded web obtained is then usually further processed into yarns or nonwovens, it being possible to use the processes customary in the textile industry.
  • these yarns, nonwovens or woven fabrics can then be further processed into various types of textile or non-textile structures.
  • Mixtures with minor amounts of aramid fibers can be processed as yarn into fabrics, for example for non-combustible curtains or aircraft textiles with very good properties, for example a low smoke gas density. They alone have an increased strength compared to fabrics made of melamine resin fibers.
  • yarns which mainly consist of melamine resin fibers and optionally additionally contain glass or polyacrylonitrile fibers, friction linings, e.g. for couplings.
  • the wadding-like web obtained in the carding process is generally used and needled.
  • the fleece obtained e.g. Filter inserts are produced, the filtration performance compared to nonwovens made from aramid fibers alone being significantly improved.
  • "Fireblocker” can also be produced from the fleece for seats in transport and furniture.
  • heat and sound-insulating fiber mats can be produced from the fleece as described in EP-B 80 655. Such mats show increased strength.
  • Fiber blends that consist predominantly of aramid fibers and e.g. have an aramid fiber content of 95 to 60, preferably 95 to 80% by weight, can be surprisingly spun at a higher speed than pure aramid fibers in yarn production in the carding process.
  • Fabrics and nonwovens can be made from such yarns, e.g. can be used for fireproof suits or for heat blockers.
  • binding fibers can be added to the fiber mixtures and molded parts can be made from them.
  • the binding fibers can consist of condensation resins or thermoplastics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Woven Fabrics (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

PCT No. PCT/EP94/03628 Sec. 371 Date May 12, 1995 Sec. 102(e) Date May 12, 1995 PCT Filed Nov. 4, 1994 PCT Pub. No. WO95/14126 PCT Pub. Date May 26, 1995The disclosure is directed to fiber blends of melamine resin fibers and aramid fibers.

Description

Die Erfindung betrifft eine feuerfeste Stapelfasermischung aus Melaminharzfasern und Aramidfasern.The invention relates to a refractory staple fiber blend of melamine resin fibers and aramid fibers.

Stapelfasern aus Melamin/Formaldehyd-Kondensationsprodukten sind bekannt, z.B. aus DE-B 23 64 091, wobei beim Spinnprozeß zur Herstellung der Melaminharzfasern der Lösung des Melaminharzes Lösungen anderer faserbildender Polymerisate zugesetzt werden können. Sie zeichnen sich durch Unbrennbarkeit, Flammfestigkeit und hohe Wärmeformbeständigkeit aus. Aufgrund dieser Eigenschaften werden sie zur Herstellung von feuerfesten Textilien eingesetzt. Für einige Einsatzzwecke reicht jedoch die Reißfestigkeit der Fasern nicht aus, bei andern Anwendungsgebieten erweist sich die geringe Abriebfestigkeit als nachteilig.Staple fibers from melamine / formaldehyde condensation products are known, e.g. from DE-B 23 64 091, wherein solutions of other fiber-forming polymers can be added to the solution of the melamine resin in the spinning process for producing the melamine resin fibers. They are characterized by incombustibility, flame resistance and high heat resistance. Because of these properties, they are used in the manufacture of refractory textiles. For some applications, however, the tensile strength of the fibers is not sufficient; in other areas of application, the low abrasion resistance proves to be disadvantageous.

Fasern aus Polykondensationsprodukten von Iso- oder Terephthalsäure und Phenylendiamin sind ebenfalls seit langem bekannt. Auch sie zeichnen sich durch ein günstiges Brandverhalten aus. Bei der Verarbeitung zu Garn nach dem Krempelverfahren erweist sich aber die niedrige Verarbeitungsgeschwindigkeit der Aramid-Stapelfasern als nachteilig.Fibers made from polycondensation products of iso- or terephthalic acid and phenylenediamine have also been known for a long time. They are also characterized by favorable fire behavior. When processing into yarn using the carding process, however, the low processing speed of the aramid staple fibers proves to be disadvantageous.

Der Erfindung lag daher die Aufgabe zugrunde, einerseits die Eigenschaften von Melaminharzfasern und andererseits die Eigenschaften von Aramidfasern zu verbessern.The invention was therefore based on the object, on the one hand, of improving the properties of melamine resin fibers and, on the other hand, of the properties of aramid fibers.

Diese Aufgaben werden erfindungsgemäß durch Mischungen der beiden Stapelfaserarten gelöst.According to the invention, these objects are achieved by blending the two types of staple fibers.

Nach DE-B 23 64 091 können beim Spinnprozeß zur Herstellung der Melaminharzfasern der Lösung des Melaminharzes Lösungen anderer faserbildender Polymerisate zugesetzt werden, u.a. auch Lösungen von Polyamiden in organischen Lösungsmitteln. Bevorzugt werden wäßrige Lösungen von Polyvinylalkohol der Melaminharzlösung zugesetzt, wodurch die mechanischen Eigenschaften der nach dem Spinnprozeß erhaltenen Fasern verbessert werden können. Hierbei werden also Mischungen oder Lösungen verschiedener Polymerisate versponnen und dadurch Mischfasern hergestellt, während bei der vorliegenden Erfindung verschiedene fertige Fasern vermischt und dadurch Fasergemische hergestellt werden.

  • A. Melaminharz-Fasern sind durch ihre hohe Temperaturbeständigkeit und Unbrennbarkeit ausgezeichnet. Ihre Herstellung und ihre Eigenschaften sind bekannt, z.B. aus der DE-A 23 64 091. Sie werden bevorzugt aus hochkonzentrierten Lösungen von Melamin/Formaldehyd-Vorkondensationsprodukten nach Zusatz eines sauren Härters durch Zentrifugenspinnen, Fadenziehen, Extrudieren oder durch Fibrillierungsprozesse gewonnen. Die dabei erhaltenen Fasern werden im allgemeinen vorgetrocknet, gegebenenfalls gereckt und das Melaminharz wird üblicherweise bei Temperaturen von 120 bis 250°C gehärtet. Die Fasern sind gewöhnlich 5 bis 25 µm dick und 2 bis 2000 mm lang. Besonders temperaturbeständige Fasern erhält man, wenn im Melaminharz bis zu 30 Mol-%, insbesondere 2 bis 20 Mol-%, des Melamins durch ein Hydroxyalkylmelamin ersetzt sind, wie in EP-A 221 330 oder EP-A 523 485 beschrieben ist. Derartige Fasern weisen eine Dauertemperaturbeständigkeit bis 200°C, vorzugsweise bis 220°C auf. Ferner können untergeordnete Mengen Melamin durch substituierte Melamine, Harnstoff oder Phenol ersetzt sein. Besonders bevorzugt sind Kondensationsprodukte, erhältlich durch Kondensation eines Gemisches, enthaltend als wesentliche Komponenten
    • (A) 90 bis 99,9 Mol-% eines Gemisches bestehend im wesentlichen aus
      • (a) 30 bis 99 Mol-% Melamin und
      • (b) 1 bis 70 Mol-% eines substituierten Melamins der allgemeinen Formel I in der X, X' und X'' ausgewählt sind aus der Gruppe bestehend aus -NH2, -NHR und -NRR', und X, X' und X'' nicht gleichzeitig -NH2 sind, und R und R' ausgewählt sind aus der Gruppe bestehend aus Hydroxy-C2-C10-alkyl, Hydroxy-C2-C4-alkyl-(oxa-C2-C4-alkyl)n, mit n = 1 bis 5, und Amino-C2-C12-alkyl, oder Mischungen von Melaminen I, und
    • (B) 0,1 bis 10 Mol-%, bezogen auf (A) und (B), unsubstituierten oder mit Resten, ausgewählt aus der Gruppe aus C1-C9-Alkyl und Hydroxy, substituierten Phenolen, mit zwei oder drei Phenolgruppen substituierten C1-C4-Alkanen, Di(hydroxyphenyl)sulfone oder Mischungen dieser Phenole,
      mit
      Formaldehyd oder Formaldehyd-liefernden Verbindungen, wobei das Molverhältnis von Melaminen zu Formaldehyd im Bereich von 1 : 1,15 bis 1 : 4,5 liegt.
  • B. Aramidfasern sind durch ihr günstiges Brandverhalten ausgezeichnet. Sie werden bevorzugt durch Verspinnen von Lösungen von Polykondensationsprodukten der Iso- oder Terephthalsäure mit para- oder meta-Phenylendiamin in Lösungsmitteln, wie z.B. einem Gemisch aus N-Vinylpyrrolidon und Hexamethylphosphorsäuretriamid hergestellt. Die erhaltenen Endlosfasern werden dann zu Stapelfasern geschnitten, deren Dicke gewöhnlich 5 bis 25 µm beträgt. Bevorzugte Aramidfasern sind solche auf Basis eines isomeren Poly-p-phenylenterephthalamids.
According to DE-B 23 64 091, solutions of other fiber-forming polymers, including solutions of polyamides in organic solvents, can be added to the solution of the melamine resin in the spinning process for producing the melamine resin fibers. Aqueous solutions of polyvinyl alcohol are preferably added to the melamine resin solution, as a result of which the mechanical properties of the fibers obtained after the spinning process can be improved. Mixtures or solutions of different polymers are thus spun and mixed fibers are thereby produced, while in the present invention different finished fibers are mixed and fiber mixtures are thereby produced.
  • A. Melamine resin fibers are characterized by their high temperature resistance and non-flammability. Their production and their properties are known, for example from DE-A 23 64 091. They are preferably made from highly concentrated Solutions of melamine / formaldehyde precondensation products after the addition of an acidic hardener are obtained by centrifugal spinning, threading, extruding or by fibrillation processes. The fibers obtained are generally pre-dried, optionally stretched, and the melamine resin is usually cured at temperatures from 120 to 250 ° C. The fibers are usually 5 to 25 µm thick and 2 to 2000 mm long. Particularly temperature-resistant fibers are obtained when up to 30 mol%, in particular 2 to 20 mol%, of the melamine in the melamine resin is replaced by a hydroxyalkyl melamine, as described in EP-A 221 330 or EP-A 523 485. Such fibers have a permanent temperature resistance up to 200 ° C, preferably up to 220 ° C. In addition, minor amounts of melamine can be replaced by substituted melamines, urea or phenol. Particularly preferred are condensation products obtainable by condensing a mixture containing the essential components
    • (A) 90 to 99.9 mol% of a mixture consisting essentially of
      • (a) 30 to 99 mole% melamine and
      • (b) 1 to 70 mol% of a substituted melamine of the general formula I in which X, X 'and X''are selected from the group consisting of -NH 2 , -NHR and -NRR', and X, X 'and X''are not simultaneously -NH 2 , and R and R' are selected are from the group consisting of hydroxy-C 2 -C 10 -alkyl, hydroxy-C 2 -C 4 -alkyl- (oxa-C 2 -C 4 -alkyl) n , with n = 1 to 5, and amino-C 2 -C 12 alkyl, or mixtures of melamines I, and
    • (B) 0.1 to 10 mol%, based on (A) and (B), unsubstituted or with radicals selected from the group consisting of C 1 -C 9 alkyl and hydroxy, substituted phenols, with two or three phenol groups substituted C 1 -C 4 alkanes, di (hydroxyphenyl) sulfones or mixtures of these phenols,
      With
      Formaldehyde or formaldehyde-providing compounds, the molar ratio of melamines to formaldehyde being in the range from 1: 1.15 to 1: 4.5.
  • B. Aramid fibers are distinguished by their favorable fire behavior. They are preferably produced by spinning solutions of polycondensation products of iso- or terephthalic acid with para- or meta-phenylenediamine in solvents, such as, for example, a mixture of N-vinylpyrrolidone and hexamethylphosphoric triamide. The continuous fibers obtained are then cut into staple fibers, the thickness of which is usually 5 to 25 μm. Preferred aramid fibers are those based on an isomeric poly-p-phenylene terephthalamide.

Beide Faserarten können die üblichen Zusatzstoffe wie Füllstoffe, Farbstoffe, Pigmente, Metallpulver und Mattierungsmittel enthalten. Das Vermischen der beiden Faserarten geschieht in der Regel auf üblichen Fasermisch-Apparaturen wie sie in Vliesstoffe, Georg Thieme Verlag, beschrieben sind. Man geht aus von Stapelfasern einer üblichen Länge von 1 bis 20 cm. Diese werden in der Regel über eine Fördereinrichtung einer Karde zugeführt und dort vorgemischt. Die Vermischung wird dann im allgemeinen in einer Krempelanlage vervollständigt. Die erhaltene watteförmige Bahn wird dann üblicherweise zu Garnen oder Vliesen weiterverarbeitet, wobei die in der Textilindustrie üblichen Verfahren angewandt werden können.Both types of fibers can contain the usual additives such as fillers, dyes, pigments, metal powder and matting agents. The two types of fibers are usually mixed on conventional fiber mixing apparatuses as described in nonwovens, Georg Thieme Verlag. One starts from staple fibers of a usual length of 1 to 20 cm. These are usually fed to a carding machine via a conveyor and premixed there. The mixing is then generally completed in a carding machine. The wadded web obtained is then usually further processed into yarns or nonwovens, it being possible to use the processes customary in the textile industry.

Diese Garne, Vliese oder Gewebe können dann je nach Anwendungsgebiet zu verschiedenartigen textilen oder nicht-textilen Gebilden weiterverarbeitet werden.Depending on the field of application, these yarns, nonwovens or woven fabrics can then be further processed into various types of textile or non-textile structures.

Mischungen mit untergeordneten Mengen an Aramidfasern, z.B. 5 bis 30 Gew.-%, können als Garn zu Geweben, z.B. für nichtbrennbare Vorhänge oder Flugzeugtextilien mit sehr guten Eigenschaften, z.B. einer geringen Rauchgasdichte verarbeitet werden. Sie weisen gegenüber Geweben aus Melaminharzfasern allein eine erhöhte Festigkeit auf.Mixtures with minor amounts of aramid fibers, for example 5 to 30% by weight, can be processed as yarn into fabrics, for example for non-combustible curtains or aircraft textiles with very good properties, for example a low smoke gas density. They alone have an increased strength compared to fabrics made of melamine resin fibers.

Ferner kann man aus derartigen Garnen, die überwiegend aus Melaminharzfasern bestehen und gegebenenfalls zusätzlich noch Glas- oder Polyacrylnitrilfasern zugemischt enthalten, Reibbeläge, z.B. für Kupplungen herstellen.Furthermore, from such yarns, which mainly consist of melamine resin fibers and optionally additionally contain glass or polyacrylonitrile fibers, friction linings, e.g. for couplings.

Zur Herstellung von Vliesen aus dem erfindungsgemäßen Fasergemisch, vorzugsweise mit einem Aramidfasergehalt von 20 bis 70 Gew.-%, geht man in der Regel von der beim Krempelprozeß erhaltenen watteförmigen Bahn aus und nadelt diese. Aus dem erhaltenen Vlies können z.B. Filtereinsätze hergestellt werden, wobei die Filtrationsleistung gegenüber Vliesen aus Aramidfasern allein deutlich verbessert ist. Ebenso können aus dem Vlies "fireblocker" für Sitze in Verkehrsmitteln und Möbeln hergestellt werden. Ferner kann man aus dem Vlies wärme- und schallisolierende Fasermatten herstellen wie sie in EP-B 80 655 beschrieben sind. Derartige Matten zeigen eine erhöhte Festigkeit.For the production of nonwovens from the fiber mixture according to the invention, preferably with an aramid fiber content of 20 to 70% by weight, the wadding-like web obtained in the carding process is generally used and needled. From the fleece obtained e.g. Filter inserts are produced, the filtration performance compared to nonwovens made from aramid fibers alone being significantly improved. "Fireblocker" can also be produced from the fleece for seats in transport and furniture. Furthermore, heat and sound-insulating fiber mats can be produced from the fleece as described in EP-B 80 655. Such mats show increased strength.

Fasermischungen, die überwiegend aus Aramidfasern bestehen und z.B. einen Aramidfasergehalt von 95 bis 60, vorzugsweise 95 bis 80 Gew.-% aufweisen, sind bei der Garnherstellung im Krempelprozeß überraschenderweise mit einer höheren Geschwindigkeit verspinnbar als reine Aramidfasern. Aus derartigen Garnen können Gewebe und Vliese hergestellt werden, die z.B. für feuerfeste Anzüge oder für Hitzeblocker verwendet werden können.Fiber blends that consist predominantly of aramid fibers and e.g. have an aramid fiber content of 95 to 60, preferably 95 to 80% by weight, can be surprisingly spun at a higher speed than pure aramid fibers in yarn production in the carding process. Fabrics and nonwovens can be made from such yarns, e.g. can be used for fireproof suits or for heat blockers.

Schließlich kann man den Fasermischungen Bindefasern zusetzen und daraus Formteile herstellen. Die Bindefasern können aus Kondensationsharzen oder Thermoplasten bestehen.Finally, binding fibers can be added to the fiber mixtures and molded parts can be made from them. The binding fibers can consist of condensation resins or thermoplastics.

Claims (10)

  1. A fire resistant staple fiber blend essentially containing
    A. 5-95 parts by weight of melamine resin fibers, and
    B. 95-5 parts by weight of aramid fibers.
  2. A process for producing a fire resistant staple fiber blend as claimed in claim 1 by blend ready-produced staple fibers, characterized in that a blend essentially containing
    A. 5-95 parts by weight of melamine resin fibers, and
    B. 95-5 parts by weight of aramid fibers is used.
  3. A fiber blend as claimed in claim 1, characterized in that the melamine resin fibers comprise a melamine-formaldehyde condensation product in which up to 30 mol% of the melamine is replaced by a hydroxyalkylmelamine.
  4. A fiber blend as claimed in claim 1, characterized in that the aramid fibers comprise a polycondensation product of isophthalic or terephthalic acid with a meta- or para-phenylenediamine.
  5. A fiber blend as claimed in claim 1, characterized in that the aramid fibers comprise an isomeric poly(p-phenyleneterephthalamide).
  6. The use of the fiber blend of claim 1 for producing yarns.
  7. The use of the fiber blend of claim 1 for producing tapes and moldings.
  8. The use of the fiber blend of claim 1 for producing fabrics.
  9. The use of the fiber blend of claim 1 for producing webs.
  10. The use of the fiber blend of claim 1 for producing friction linings.
EP94931564A 1993-11-15 1994-11-04 Fiber blend Expired - Lifetime EP0729526B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4338942 1993-11-15
DE4338942 1993-11-15
PCT/EP1994/003628 WO1995014126A1 (en) 1993-11-15 1994-11-04 Fiber blend

Publications (2)

Publication Number Publication Date
EP0729526A1 EP0729526A1 (en) 1996-09-04
EP0729526B1 true EP0729526B1 (en) 2000-04-05

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EP94931564A Expired - Lifetime EP0729526B1 (en) 1993-11-15 1994-11-04 Fiber blend

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US (1) US5560990A (en)
EP (1) EP0729526B1 (en)
JP (1) JPH09504838A (en)
KR (1) KR100315955B1 (en)
CN (1) CN1039045C (en)
AT (1) ATE191521T1 (en)
BR (1) BR9408043A (en)
CA (1) CA2176395A1 (en)
DE (1) DE59409277D1 (en)
ES (1) ES2145163T3 (en)
WO (1) WO1995014126A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5496625A (en) * 1994-12-30 1996-03-05 Norfab Corporation Melamine thermal protective fabric and core-spun heat resistant yarn for making the same
DE19523081A1 (en) * 1995-06-26 1997-01-02 Basf Ag Fiber blend of melamine resin fibers and natural fibers
DE19617634A1 (en) * 1996-05-02 1997-11-06 Basf Ag Flame retardant fabric based on melamine resin fibers
DE29619737U1 (en) * 1996-11-13 1997-01-09 Rheinische Filztuchfabrik GmbH, 52222 Stolberg Press pad with a textile yarn
US6102128A (en) * 1997-03-13 2000-08-15 Bridgeman; William M. Fire-resistant blanket
US5824614A (en) * 1997-04-24 1998-10-20 Basf Corporation Articles having a chambray appearance and process for making them
US5849648A (en) * 1997-04-24 1998-12-15 Basf Corporation Comfort melamine fabrics and process for making them
US5830574A (en) * 1997-04-24 1998-11-03 Basf Corporation Dyeing articles composed of melamine fiber and cellulose fiber
US6489256B1 (en) * 1997-09-26 2002-12-03 George M. Kent Fire escape blanket and other melamine resin containing compositions and products with fire blocking properties
US5853880A (en) * 1997-10-01 1998-12-29 Basf Corporation Melamine-containing fabrics with improved comfort
AU4338301A (en) * 2000-03-02 2001-09-12 Polymer Group Inc Imaged nonwoven fire-retardant fiber blends and process for making same
US8071492B2 (en) * 2001-08-20 2011-12-06 Pbi Performance Products, Inc. Textile fabric for the outer shell of a firefighter's garment
US6624096B2 (en) * 2001-08-20 2003-09-23 Cna Holdings, Inc. Textile fabric for the outer shell of a firefighters's garmet
US20050130533A1 (en) * 2003-09-16 2005-06-16 Francois Lapierre Woven product exhibiting durable arc flash protection and the articles thereof
US20050186875A1 (en) * 2004-02-03 2005-08-25 Norfab Corporation Firefighter garment outer shell fabric utilizing core-spun dref yarn
MXPA06012599A (en) * 2004-05-04 2007-01-31 Polymer Group Inc Self-extinguishing differentially entangled nonwoven fabrics.
US8163664B2 (en) * 2004-07-30 2012-04-24 Owens Corning Intellectual Capital, Llc Fiberglass products for reducing the flammability of mattresses
US20060068675A1 (en) * 2004-09-01 2006-03-30 Handermann Alan C Wet-lay flame barrier
US7589037B2 (en) * 2005-01-13 2009-09-15 Basofil Fibers, Llc Slickened or siliconized flame resistant fiber blends
US7703405B2 (en) * 2005-09-22 2010-04-27 Waubridge Specialty Fabrics, Llc Method of producing a fire resistant fabric with stitchbonding
US20070065685A1 (en) * 2005-09-22 2007-03-22 Waubridge Specialty Fabrics, Llc Fire-resistant fabric
US8932965B1 (en) 2008-07-30 2015-01-13 International Textile Group, Inc. Camouflage pattern with extended infrared reflectance separation
US10433593B1 (en) 2009-08-21 2019-10-08 Elevate Textiles, Inc. Flame resistant fabric and garment
US20110165397A1 (en) * 2010-01-06 2011-07-07 Ray Roe Stitch-Bonded Flame-Resistant Fabrics
US8209785B2 (en) 2010-02-09 2012-07-03 International Textile Group, Inc. Flame resistant fabric made from a fiber blend
US8793814B1 (en) 2010-02-09 2014-08-05 International Textile Group, Inc. Flame resistant fabric made from a fiber blend
WO2014018842A1 (en) * 2012-07-27 2014-01-30 Robert Bosch Gmbh Metal/oxygen battery with an oxygen supply system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1660768A1 (en) * 1965-02-17 1971-07-15 Filztuchverwaltungs Gmbh Process for the production of textile surface structures, in particular needled paper machine felts, without a base fabric or reinforcing inserts
JPS4987821A (en) * 1972-12-28 1974-08-22
BE813455A (en) * 1973-04-09 1974-10-08 PROCESS FOR IMPREGNATION OF TEXTILE FIBERS WITH HARDLY FUSABLE SYNTHETIC POLYMERS CONTAINING BINDING NITROGEN ATOMS
US4291087A (en) * 1979-06-12 1981-09-22 Rohm And Haas Company Non-woven fabrics bonded by radiation-curable, hazard-free binders
DE3341461A1 (en) * 1983-11-17 1985-05-30 Basf Ag, 6700 Ludwigshafen AREA GASKET MATERIAL
US4497934A (en) * 1984-05-02 1985-02-05 American Cyanamid Company Method for the production of melamine/aldehyde filaments
DE3534740A1 (en) * 1985-09-28 1987-04-09 Basf Ag MELAMINE RESIN MOLDED BODIES WITH INCREASED STRENGTH
JP2703390B2 (en) * 1990-06-11 1998-01-26 帝人株式会社 Aromatic polyamide fiber cloth
DE4123050A1 (en) * 1991-07-12 1993-01-14 Basf Ag MODIFIED MELAMINE FORMALDEHYDE RESINS
AT398768B (en) * 1991-08-05 1995-01-25 Chemie Linz Gmbh MODIFIED MELAMINE RESINS AND PREPREGS AND LAMINATES BASED ON THIS MELAMINE RESINS

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US5560990A (en) 1996-10-01
KR100315955B1 (en) 2002-02-28
CA2176395A1 (en) 1995-05-26
DE59409277D1 (en) 2000-05-11
WO1995014126A1 (en) 1995-05-26
ES2145163T3 (en) 2000-07-01
BR9408043A (en) 1996-12-24
ATE191521T1 (en) 2000-04-15
KR960705973A (en) 1996-11-08
EP0729526A1 (en) 1996-09-04
JPH09504838A (en) 1997-05-13
CN1039045C (en) 1998-07-08

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