EP0799343B1 - Materiau composite non-tisse-aerogel contenant des fibres a deux composants, son procede de fabrication et son utilisation - Google Patents

Materiau composite non-tisse-aerogel contenant des fibres a deux composants, son procede de fabrication et son utilisation Download PDF

Info

Publication number
EP0799343B1
EP0799343B1 EP95942723A EP95942723A EP0799343B1 EP 0799343 B1 EP0799343 B1 EP 0799343B1 EP 95942723 A EP95942723 A EP 95942723A EP 95942723 A EP95942723 A EP 95942723A EP 0799343 B1 EP0799343 B1 EP 0799343B1
Authority
EP
European Patent Office
Prior art keywords
composite material
material according
aerogel particles
airgel
bicomponent
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
Application number
EP95942723A
Other languages
German (de)
English (en)
Other versions
EP0799343A1 (fr
Inventor
Dierk Frank
Franz Thönnessen
Andreas Zimmermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cabot Corp
Original Assignee
Cabot Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cabot Corp filed Critical Cabot Corp
Publication of EP0799343A1 publication Critical patent/EP0799343A1/fr
Application granted granted Critical
Publication of EP0799343B1 publication Critical patent/EP0799343B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H1/413—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 containing granules other than absorbent substances
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/4374—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 using different kinds of webs, e.g. by layering webs
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5414—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres side-by-side
    • 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
    • Y10T428/23—Sheet including cover or casing
    • 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
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/237—Noninterengaged fibered material encased [e.g., mat, batt, etc.]
    • Y10T428/238—Metal cover or casing
    • 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
    • Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
    • 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]
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637—Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y10T442/641—Sheath-core multicomponent strand or fiber material
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637—Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y10T442/642—Strand or fiber material is a blend of polymeric material and a filler material
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/647—Including a foamed layer or component
    • Y10T442/652—Nonwoven fabric is coated, impregnated, or autogenously bonded
    • Y10T442/653—Including particulate material other than fiber

Definitions

  • the invention relates to a composite material comprising at least one layer of nonwoven and Airgel particles, a process for its preparation and its Use.
  • Aerogels especially those with porosities above 60% and densities below 0.4 g / cm 3 , have an extremely low thermal conductivity due to their very low density, high porosity and small pore diameter and are therefore used as heat insulation materials, such as in the EP -A-0 171 722.
  • the high porosity also leads to low mechanical stability both the gel from which the airgel is dried and the dried one Aerogels itself.
  • Aerogels in the wider sense i.e. in the sense of "gel with air as a dispersant" are made by drying a suitable gel.
  • airgel means aerogels in the narrower sense, and xerogels Cryogels.
  • a dried gel is called an airgel in the narrower sense, if the liquid of the gel is at temperatures above the critical temperature and is removed based on pressures above the critical pressure. Becomes the liquid of the gel, on the other hand, is subcritical, for example with the formation of a Liquid-vapor boundary phase removed, then the resulting gel is called Xerogel.
  • the gels according to the invention are Aerogels, in the sense of gel with air as a dispersant.
  • the molding process of the airgel takes place during the sol-gel transition completed.
  • the outer shape can only still be changed by comminution, for example grinding, for one other form of processing, the material is too fragile.
  • a mat is also used in German patent application P 44 18 843.9 described a fiber-reinforcing xerogel. These mats show through the very high proportion of airgel has a very low thermal conductivity relative to their manufacture due to the diffusion problems described above long production times necessary. In particular, the manufacture is thicker Mats only possible by combining several thin mats therefore requires additional effort.
  • US Pat. No. 5,256,476 discloses a shaped body with adsorber particles, in addition to the adsorber particles, the fine plastic particles and reinforcing ones Contains fibers, being essentially the fine plastic particles as Binders act.
  • the object of the present invention is therefore to provide a composite material on the To provide base of airgel granules that have a low thermal conductivity has that is mechanically stable and the simple manufacture of mats or Plates allowed.
  • the object is achieved by a composite material which has at least one layer of nonwoven fabric and airgel particles, the nonwoven fabric containing at least one bicomponent fiber material and the bicomponent fiber material having low and high-melting areas, which is characterized in that the fibers of the nonwoven both with the airgel particles and with each other through the low-melting areas of the fiber material, and that the airgel particles have porosities above 60%, densities below 0.4 g / cm 3 and a thermal conductivity of less than 40 mW / mK.
  • the thermal bonding of the bicomponent fibers leads to a connection of the low-melting parts of the bicomponent fibers and thus ensures a stable fleece.
  • the melting part of the bicomponent fiber binds the airgel particles to the fiber.
  • the bicomponent fibers are chemical fibers made from two firmly bonded polymers of different chemical and / or physical structure, the areas with different melting points, i.e. low and high melting Areas.
  • the melting points of the lower and higher melting ones Ranges preferably differ by at least 10 ° C.
  • the bicomponent fibers preferably have a core / sheath structure.
  • the The core of the fiber consists of a polymer, preferably one thermoplastic polymer whose melting point is higher than that of thermoplastic polymer that forms the shell.
  • Bicomponent fiber variations made of polyester / polyolefin e.g. Polyester / polyethylene or polyester / copolyolefin or bicomponent fibers that have an elastic Have shell polymer are used. But it can also be side-by-side Bicomponent fibers are used.
  • the nonwoven fabric can also have at least one simple fiber material included in the thermal solidification with the low-melting Areas of the bicomponent fibers is connected.
  • the simple fibers are organic polymer fibers, e.g. Polyester, polyolefin and / or polyamide fibers, preferably polyester fibers.
  • the Fibers can be round, trilobal, pentalobal, octalobal, ribbon, fir tree, have dumbbell or other star-shaped profiles. Hollow fibers can also be used be used. The melting point of these simple fibers should be above that of the melting areas of the bicomponent fibers lie.
  • the bicomponent fibers ie the high and / or low melting component, and optionally the simple fibers can be blackened with an IR opacifier such as carbon black, titanium dioxide, iron oxides or zirconium dioxide or mixtures thereof.
  • the bicomponent fibers and possibly the simple fibers can also be colored for coloring.
  • the diameter of the fibers used in the composite should preferably be be smaller than the average diameter of the airgel particles to a high Proportion of airgel in the fiber fleece.
  • the titer of simple fibers should preferably be between 0.8 and 40 dtex lie, that of the bicomponent fibers preferably between 2 and 20 dtex.
  • Mixtures of bicomponent fibers or simple fibers can also be made different materials, with different profiles and / or different Titers are used.
  • the weight fraction should ensure good adhesion of the airgel granules Bicomponent fiber between 10 and 100 wt .-%, preferably between 40 and 100 wt .-%, based on the total fiber content.
  • the volume fraction of the airgel in the composite material should be as high as possible, be at least 40%, preferably over 60%. To still mechanical stability of the To achieve composite, however, the proportion should not exceed 95%, preferably not exceed 90%.
  • Suitable aerogels for the compositions according to the invention are those based on metal oxides which are suitable for sol-gel technology (CJ Brinker, GW Scherer, Sol-Gel-Science, 1990, chapters 2 and 3), such as Si or Al compounds or those based on organic substances which are suitable for sol-gel technology, such as melamine formaldehyde condensates (US Pat. No. 5,086,085) or resorcinol formaldehyde condensates (US Pat. No. 4,873,218). They can also be based on mixtures of the above materials. Aerogels containing Si compounds, in particular SiO 2 aerogels and very particularly preferably SiO 2 xerogels, are preferably used. To reduce the radiation contribution of the thermal conductivity, the airgel can contain IR opacifiers, such as, for example, carbon black, titanium dioxide, iron oxides, zirconium dioxide or mixtures thereof.
  • IR opacifiers such as, for example, carbon black, titanium dioxide, iron oxide
  • the thermal conductivity of the aerogels decreases with increasing porosity and decreasing density. For this reason, aerogels with porosities above 60% and densities below 0.4 g / cm 3 are preferred.
  • the thermal conductivity of the airgel granules should be less than 40 mW / mK, preferably less than 25 mW / mK.
  • the airgel particles have hydrophobic surface groups.
  • hydrophobic surface groups In order to avoid a later collapse of the aerogels by condensation of moisture in the pores, it is namely advantageous if there are covalent hydrophobic groups on the inner surface of the aerogels which are not split off under the action of water.
  • Preferred groups for permanent hydrophobization are trisubstituted silyl groups of the general formula -Si (R) 3 , particularly preferably trialkyl and / or triarylsilyl groups, each R independently being a non-reactive, organic radical such as C 1 -C 18 alkyl or C 6 -C 14- aryl, preferably C 1 -C 6 alkyl or phenyl, in particular methyl, ethyl, cyclohexyl or phenyl, which can additionally be substituted with functional groups.
  • the use of trimethylsilyl groups is particularly advantageous for permanent hydrophobization of the airgel.
  • These groups can be introduced, as described in WO 94/25149, or by gas phase reaction between the airgel and, for example, an activated trialkylsilane derivative, such as, for example, a chlorotrialkylsilane or a hexaalkyldisilazane (compare R. Iler, The Chemistry of Silica, Wiley & Sons, 1979).
  • an activated trialkylsilane derivative such as, for example, a chlorotrialkylsilane or a hexaalkyldisilazane
  • the size of the grains depends on the application of the material. However, to The particles should be able to bind a high proportion of airgel granules be larger than the fiber diameter, preferably larger than 30 ⁇ m. To one To achieve high stability, the granules should not be too coarse-grained, preferably the grains should be less than 2 cm.
  • Granules can preferably be used for the submission of high airgel volume fractions a bimodal grain size distribution can be used. Can continue too other suitable distributions are used.
  • the fire class of the composite material is determined by the fire class of the airgel and of fibers determined.
  • flame-retardant fiber types such as e.g. TREVIRA CS®.
  • the composite material consists only of the nonwoven fabric that contains the airgel particles contains, can with mechanical stress of the composite material Airgel granules break or detach from the fiber, causing fragments the fleece can fall out.
  • the nonwoven fabric on a or both sides are each provided with at least one cover layer, wherein the cover layers can be the same or different.
  • the cover layers can either in the thermal solidification via the low-melting Component of the bicomponent fiber or glued using another adhesive become.
  • the cover layer can e.g. a plastic film, preferably one Metal foil or a metallized plastic film.
  • the respective Cover layer itself consist of several layers.
  • Non-woven layers made from a mixture of fine, simple fibers and finer Contains bicomponent fibers, and the individual fiber layers in themselves and are thermally solidified with each other.
  • the simple fibers as well as the bicomponent fibers should have diameters of less than 30 ⁇ m, preferably less than 15 ⁇ m.
  • the Fleece layers of the cover layers must be needled.
  • Another object of the present invention is to provide a method for To provide production of the composite material according to the invention.
  • the composite material according to the invention can e.g. according to the following procedure getting produced:
  • the nonwoven staple fibers in the form of commercially available Cards or cards are used. While the fleece according to the expert the usual procedures, the airgel granules are sprinkled. At the Introducing the airgel granules into the fiber composite is as possible ensure even distribution of the granules. This is through commercial spreading devices reached.
  • the nonwoven fabric can be covered on a cover layer Sprinkling of the airgel will be placed after the completion of this process applied top layer.
  • cover layers made of finer fiber material are used, the lower fleece layer made of fine fibers and / or bicomponent fibers known methods and possibly needled. Then, as described above, the airgel-containing fiber composite is applied.
  • top cover layer can, as for the lower nonwoven layer, of fine fibers and / or bicomponent fibers a layer is laid and if necessary needled.
  • the resulting fiber composite is possibly under pressure at temperatures between the melting temperature of the jacket material and the smaller the Melting temperatures of simple fiber material and high-melting Component of the bicomponent fiber thermally consolidated.
  • the pressure is there between normal pressure and the compressive strength of the airgel used.
  • the sheets and mats according to the invention are suitable because of their small size Thermal conductivity as a thermal insulation material.
  • the plates and mats according to the invention can be used as sound absorption materials can be used directly or in the form of resonance absorbers as they a low speed of sound and, compared to monolithic aerogels, have a higher sound absorption.
  • damping the Airgel material occurs depending on the permeability of the nonwoven additional damping due to air friction between the pores in the nonwoven material.
  • the permeability of the nonwoven fabric can be changed by changing the fiber diameter, the fleece density and the grain size of the airgel particles are influenced. Contains If the fleece is still covering layers, these covering layers should prevent the Allow sound into the fleece and not to a large extent reflection of the sound to lead.
  • the plates and mats according to the invention are also suitable on the basis of Porosity of the fleece and especially the large porosity and specific Surface of the airgel also as adsorption materials for liquids, vapors and gases.
  • a specific one can be modified by modifying the airgel surface Adsorption can be achieved.
  • TREVIRA 290 50% by weight of TREVIRA 290, 0.8 dtex / 38 mm hm and 50% by weight of PES / Co-PES bicomponent fibers of the type TREVIRA 254, 2.2 dtex / 50 mm hm were used to make a nonwoven fabric with a basis weight of 100 g / m 2 .
  • the resulting nonwoven composite material was at a temperature of 160 ° C. thermally solidified for 5 minutes and compressed to a thickness of 1.4 cm.
  • the volume fraction of airgel in the solidified mat was 51%.
  • the resulting mat had a basis weight of 1.2 kg / m 2 . It was easy to bend and squeeze.
  • the thermal conductivity was determined to be 28 mW / mK using a plate method in accordance with DIN 52 612 Part 1.
  • TREVIRA 120 From 50% by weight of TREVIRA 120 staple fibers with a titer of 1.7 dtex, length 38mm, spinning black and 50% by weight of PES / Co-PES bicomponent fibers of the type TREVIRA 254, 2.2 dtex / 50 mm hm was first a Fleece laid, which served as the lower cover layer. This top layer had a basis weight of 100 g / m 2 .
  • a hydrophobic airgel granulate based on TEOS with a density of 150 kg / m 3 and a thermal conductivity of 23 mW / mK with grain sizes of 2 to 4 mm in diameter was sprinkled in.
  • a cover layer was placed on this airgel-containing non-woven fabric, which was built up like the lower cover layer.
  • the resulting composite material was used at a temperature of 160'C Thermally solidified for 5 minutes and compressed to a thickness of 1.5 cm.
  • the Volume fraction of airgel in the solidified mat was 51%.
  • the resulting mat had a basis weight of 1.4 kg / m 2 .
  • the thermal conductivity was determined using a plate method according to DIN 52612 Part 1 to 27 mW / mK.
  • the mat was easy to bend and squeeze. It trickled out of the mat no airgel pellets even after bending.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Multicomponent Fibers (AREA)
  • Woven Fabrics (AREA)
  • Filtering Materials (AREA)

Claims (14)

  1. Matériau composite, qui présente au moins une couche de tissu non tissé et de particules d'aérogel, dans lequel le tissu non tissé contient au moins un matériau fibreux à deux composants et le matériau fibreux à deux composants présente des intervalles de fusion à plus basse et à plus haute température, caractérisé en ce que, les fibres du tissu non tissé sont liées aussi bien aux particules d'aérogel qu'entre elles au moyen des domaines de fusion à température plus basse du matériau fibreux, et en ce que les particules d'aérogel présentent des porosités supérieures à 60%, des masses volumiques inférieures à 0,4 g/cm3 et une conductivité calorifique de moins de 40 mW/mK.
  2. Matériau composite selon la revendication 1, caractérisé en ce que le matériau fibreux à deux composants présente une structure noyau/écorce.
  3. Matériau composite selon la revendication 1 ou 2, caractérisé en ce que le tissu non tissé contient de plus un matériau fibreux monocomposant.
  4. Matériau composite selon la revendication 3, caractérisé en ce que le titre du matériau fibreux à deux composants se situe dans la gamme de 2 à 20 dtex et le titre des fibres monocomposant dans la gamme de 0,8 à 40 dtex.
  5. Matériau composite selon au moins une des revendications 1 à 4, caractérisé en ce que la proportion des particules d'aérogel dans le matériau composite s'élève à au moins 40% en volume.
  6. Matériau composite selon au moins une des revendications 1 à 5, caractérisé en ce que l'aérogel est un aérogel de SiO2.
  7. Matériau composite selon au moins une des revendications 1 à 6, caractérisé en ce que le matériau fibreux à deux composants, le matériau fibreux monocomposant et/ou les particules d'aérogel contiennent au moins un opacifiant IR.
  8. Matériau composite selon au moins une des revendications 1 à 7, caractérisé en ce que les particules d'aérogel présentent une conductivité calorifique inférieure à 25 mW/mK.
  9. Matériau composite selon au moins une des revendications 1 à 8, caractérisé en ce que les particules d'aérogel présentent des groupes de surface hydrophobes.
  10. Matériau composite selon au moins une des revendications 1 à 9, caractérisé en ce que le tissu non tissé est muni sur l'une ou les deux faces de respectivement au moins une couche de couverture, les couches de couverture pouvant être identiques ou différentes.
  11. Matériau composite selon la revendication 10, caractérisé en ce que les couches de couverture contiennent des feuilles de matières plastiques, des feuilles métalliques, les feuilles de plastique métallisé ou de préférence des couches de non tissé de fibres fines monocomposant et/ou de fibres fines à deux composants.
  12. Matériau composite selon au moins une des revendications 1 à 11 sous la forme d'une plaque ou d'un matelas.
  13. Procédé pour la préparation d'un matériau composite selon la revendication 1, caractérisé en ce que, l'on disperse les particules d'aérogel dans un tissu non tissé, qui contient au moins un matériau fibreux à deux composants ayant des domaines de température de fusion plus basse et plus haute, et en ce que l'on stabilise thermiquement le matériau fibreux résultant, éventuellement sous pression, à des températures au-dessus de la température de fusion plus basse et au-dessous de la température de fusion plus haute.
  14. Utilisation d'un matériau composite selon au moins l'une des revendications 1 à 12 pour l'isolation thermique, pour l'isolation phonique et/ou comme matériau absorbant pour des gaz, des vapeurs et des liquides.
EP95942723A 1994-12-21 1995-12-21 Materiau composite non-tisse-aerogel contenant des fibres a deux composants, son procede de fabrication et son utilisation Expired - Lifetime EP0799343B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4445771 1994-12-21
DE4445771 1994-12-21
PCT/EP1995/005083 WO1996019607A1 (fr) 1994-12-21 1995-12-21 Materiau composite non-tisse-aerogel contenant des fibres a deux composants, son procede de fabrication et son utilisation

Publications (2)

Publication Number Publication Date
EP0799343A1 EP0799343A1 (fr) 1997-10-08
EP0799343B1 true EP0799343B1 (fr) 2000-03-22

Family

ID=6536571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942723A Expired - Lifetime EP0799343B1 (fr) 1994-12-21 1995-12-21 Materiau composite non-tisse-aerogel contenant des fibres a deux composants, son procede de fabrication et son utilisation

Country Status (16)

Country Link
US (1) US5786059A (fr)
EP (1) EP0799343B1 (fr)
JP (1) JP4237253B2 (fr)
KR (1) KR100368851B1 (fr)
CN (1) CN1063246C (fr)
AT (1) ATE191021T1 (fr)
AU (1) AU4388996A (fr)
CA (1) CA2208510A1 (fr)
DE (1) DE59508075D1 (fr)
ES (1) ES2146795T3 (fr)
FI (1) FI972677A0 (fr)
MX (1) MX9704728A (fr)
NO (1) NO309578B1 (fr)
PL (1) PL181720B1 (fr)
RU (1) RU2147054C1 (fr)
WO (1) WO1996019607A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3120997A1 (fr) 2015-07-24 2017-01-25 Carl Freudenberg KG Non-tisse d'aerogel
EP4450274A1 (fr) * 2023-04-20 2024-10-23 Deutsches Zentrum für Luft- und Raumfahrt e.V. Matériau isolant pour isolation acoustique et thermique composé de fibres composites flexibles et de granulés hydrophobes

Families Citing this family (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6887563B2 (en) * 1995-09-11 2005-05-03 Cabot Corporation Composite aerogel material that contains fibres
DE19648798C2 (de) 1996-11-26 1998-11-19 Hoechst Ag Verfahren zur Herstellung von organisch modifizierten Aerogelen durch Oberflächenmodifikation des wäßrigen Gels (ohne vorherigen Lösungsmitteltausch) und anschließender Trocknung
DE19702239A1 (de) * 1997-01-24 1998-07-30 Hoechst Ag Mehrschichtige Verbundmaterialien, die mindestens eine aerogelhaltige Schicht und mindestens eine Schicht, die Polyethylenterephthalat-Fasern enthält, aufweisen, Verfahren zu ihrer Herstellung sowie ihre Verwendung
DE19702238A1 (de) * 1997-01-24 1998-08-06 Hoechst Ag Verwendung von Aerogelen zur Körper- und/oder Trittschalldämmung
DE19702240A1 (de) * 1997-01-24 1998-07-30 Hoechst Ag Mehrschichtige Verbundmaterialien, die mindestens eine aerogelhaltige Schicht und mindestens eine weitere Schicht aufweisen, Verfahren zu ihrer Herstellung sowie ihre Verwendung
EP0975405B1 (fr) * 1997-04-18 2006-03-29 Cabot Corporation Utilisation d'aerogels comme agent d'adsorption
DE19718741A1 (de) 1997-05-02 1998-11-05 Hoechst Ag Verfahren zur Kompaktierung von Aerogelen
DE19718740A1 (de) 1997-05-02 1998-11-05 Hoechst Ag Verfahren zur Granulierung von Aerogelen
AU8991898A (en) * 1997-09-05 1999-03-29 1... Limited Aerogels, piezoelectric devices, and uses therefor
DE19756633A1 (de) 1997-12-19 1999-06-24 Hoechst Ag Verfahren zur unterkritischen Trocknung von Lyogelen zu Aerogelen
DE19801004A1 (de) 1998-01-14 1999-07-15 Cabot Corp Verfahren zur Herstellung von im wesentlichen kugelförmigen Lyogelen in wasserunlöslichen Silylierungsmitteln
DE59811774D1 (de) * 1998-06-05 2004-09-09 Cabot Corp Nanoporöse interpenetrierende organisch-anorganische netzwerke
US8075716B1 (en) * 2000-01-11 2011-12-13 Lawrence Livermore National Security, Llc Process for preparing energetic materials
CN1306993C (zh) * 2000-12-22 2007-03-28 思攀气凝胶公司 带有纤维胎的气凝胶复合材料
GB0117212D0 (en) * 2001-07-16 2001-09-05 Mat & Separations Tech Int Ltd Filter element
WO2003064025A1 (fr) * 2002-01-29 2003-08-07 Cabot Corporation Aerogel composite isolant thermoresistant et procede de preparation, composition de liant d'aerogel et procede de preparation
WO2004037533A2 (fr) * 2002-05-15 2004-05-06 Cabot Corporation Composite isolant thermoresistant, et procede de preparation associe
BRPI0410083B1 (pt) * 2003-05-06 2017-12-05 Aspen Aerogels, Inc. Tube-in-tube type apparatus for thermal isolation of a flow line
US7621299B2 (en) * 2003-10-03 2009-11-24 Cabot Corporation Method and apparatus for filling a vessel with particulate matter
US7641954B2 (en) * 2003-10-03 2010-01-05 Cabot Corporation Insulated panel and glazing system comprising the same
US7118801B2 (en) 2003-11-10 2006-10-10 Gore Enterprise Holdings, Inc. Aerogel/PTFE composite insulating material
US20050270746A1 (en) * 2004-06-04 2005-12-08 Reis Bradley E Insulating structure having combined insulating and heat spreading capabilities
WO2006052581A2 (fr) * 2004-11-03 2006-05-18 Cottonwood Manufacturing, Inc. Matelas isolant de fibres et son procede de fabrication
US7635411B2 (en) * 2004-12-15 2009-12-22 Cabot Corporation Aerogel containing blanket
US9469739B2 (en) 2005-04-07 2016-10-18 Aspen Aerogels, Inc. Microporous polyolefin-based aerogels
US8461223B2 (en) 2005-04-07 2013-06-11 Aspen Aerogels, Inc. Microporous polycyclopentadiene-based aerogels
US20060264133A1 (en) * 2005-04-15 2006-11-23 Aspen Aerogels,Inc. Coated Aerogel Composites
US20060269734A1 (en) * 2005-04-15 2006-11-30 Aspen Aerogels Inc. Coated Insulation Articles and Their Manufacture
US9476123B2 (en) 2005-05-31 2016-10-25 Aspen Aerogels, Inc. Solvent management methods for gel production
US20070014979A1 (en) 2005-07-15 2007-01-18 Aspen Aerogels, Inc. Secured Aerogel Composites and Methods of Manufacture Thereof
CN100398492C (zh) * 2005-08-01 2008-07-02 中国人民解放军国防科学技术大学 一种气凝胶绝热复合材料及其制备方法
US20070202771A1 (en) * 2005-11-02 2007-08-30 Earl Douglass Fiber insulation blanket and method of manufacture
CN100372603C (zh) * 2005-11-18 2008-03-05 上海市纺织科学研究院 吸附用SiO2气凝胶－双组分无纺毡复合材料及其制造方法
US9181486B2 (en) 2006-05-25 2015-11-10 Aspen Aerogels, Inc. Aerogel compositions with enhanced performance
US8318062B2 (en) 2006-10-04 2012-11-27 Sellars Absorbent Materials, Inc. Industrial absorbents and methods of manufacturing the same
US8118177B2 (en) 2006-10-04 2012-02-21 Sellars Absorbent Materials, Inc. Non-woven webs and methods of manufacturing the same
WO2008055208A1 (fr) * 2006-11-01 2008-05-08 New Jersey Institute Of Technology Filtration à base d'aérogel de systèmes en phase gazeuse
JP5431972B2 (ja) * 2007-03-23 2014-03-05 バードエアー，インコーポレイティド 建築用膜構造体およびその製造方法
GB2448467A (en) * 2007-04-20 2008-10-22 Parasol Panel Systems Llp Insulating panel
WO2008144634A2 (fr) * 2007-05-18 2008-11-27 Cabot Corporation Remplissage d'unités de fenestration
US8281857B2 (en) * 2007-12-14 2012-10-09 3M Innovative Properties Company Methods of treating subterranean wells using changeable additives
CN101903453B (zh) * 2007-12-14 2013-11-06 普拉德研究及开发股份有限公司 支撑剂及其应用
EA027037B1 (ru) * 2007-12-14 2017-06-30 Шлюмбергер Текнолоджи Б.В. Способ обработки подземного пласта
CA2708804C (fr) * 2007-12-14 2016-01-12 3M Innovative Properties Company Agregat de fibres
US20090258180A1 (en) * 2008-02-15 2009-10-15 Chapman Thermal Products, Inc. Layered thermally-insulating fabric with an insulating core
US20090209155A1 (en) * 2008-02-15 2009-08-20 Chapman Thermal Products, Inc. Layered thermally-insulating fabric with thin heat reflective and heat distributing core
CN102066824B (zh) 2008-05-01 2014-07-09 卡伯特公司 隔离管或其元件的制造和安装
WO2010068254A2 (fr) 2008-12-10 2010-06-17 Cabot Corporation Isolation pour stockage ou transport de fluides cryogéniques
US10196814B2 (en) 2009-04-27 2019-02-05 Cabot Corporation Aerogel compositions and methods of making and using them
EP2491174B1 (fr) * 2009-10-21 2016-09-21 3M Innovative Properties Company Articles poreux à support intégré et procédés de fabrication
BR112012012614A2 (pt) 2009-11-25 2018-06-05 Cabot Corp compósitos de aerogel e método para os fazer e usar.
FI123674B (fi) 2009-12-23 2013-09-13 Paroc Oy Ab Menetelmä mineraalikuitu-komposiittituotteen valmistamiseksi
FI122693B (fi) 2009-12-23 2012-05-31 Paroc Oy Ab Menetelmä mineraalivilla-komposiittimateriaalin valmistamiseksi, menetelmällä valmistettu tuote ja sen käyttö eristysmateriaalina
AU2011229316B2 (en) * 2010-03-18 2014-06-12 Toho Tenax Europe Gmbh Multiaxial laid scrim having a polymer nonwoven
US8899000B2 (en) 2010-07-09 2014-12-02 Birdair, Inc. Architectural membrane and method of making same
US8663427B2 (en) 2011-04-07 2014-03-04 International Paper Company Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs
WO2012018749A1 (fr) 2010-08-03 2012-02-09 International Paper Company Bande de pâte défibrée ignifugée et son processus de fabrication
US8952119B2 (en) 2010-11-18 2015-02-10 Aspen Aerogels, Inc. Organically modified hybrid aerogels
US8906973B2 (en) 2010-11-30 2014-12-09 Aspen Aerogels, Inc. Modified hybrid silica aerogels
US8388807B2 (en) 2011-02-08 2013-03-05 International Paper Company Partially fire resistant insulation material comprising unrefined virgin pulp fibers and wood ash fire retardant component
US9133280B2 (en) * 2011-06-30 2015-09-15 Aspen Aerogels, Inc. Sulfur-containing organic-inorganic hybrid gel compositions and aerogels
EA027965B1 (ru) * 2011-07-07 2017-09-29 3М Инновейтив Пропертиз Компани Изделие, включающее многокомпонентные волокна и полые керамические микросферы, и способы их изготовления и использования
FR2981341B1 (fr) 2011-10-14 2018-02-16 Enersens Procede de fabrication de xerogels
ITMO20110298A1 (it) * 2011-11-21 2013-05-22 Giemme S N C Di Corradini Marco & C Procedimento di realizzazione di un pannello isolante e relativo pannello isolante ottenibile.
SI24001A (sl) 2012-02-10 2013-08-30 Aerogel Card D.O.O. Kriogena naprava za transport in skladiščenje utekočinjenih plinov
FI126355B (en) 2012-03-27 2016-10-31 Paroc Group Oy Composite insulating product consisting of mineral wool and material with excellent insulating properties
US9302247B2 (en) 2012-04-28 2016-04-05 Aspen Aerogels, Inc. Aerogel sorbents
US20130344279A1 (en) 2012-06-26 2013-12-26 Cabot Corporation Flexible insulating structures and methods of making and using same
CN102807358B (zh) * 2012-07-13 2014-03-12 中国科学院研究生院 一种柔性气凝胶块体及其制备方法
US11053369B2 (en) 2012-08-10 2021-07-06 Aspen Aerogels, Inc. Segmented flexible gel composites and rigid panels manufactured therefrom
US10058808B2 (en) 2012-10-22 2018-08-28 Cummins Filtration Ip, Inc. Composite filter media utilizing bicomponent fibers
AU2014275508B2 (en) 2013-03-08 2017-02-02 Aspen Aerogels, Inc. Aerogel insulation panels and manufacturing thereof
FR3007025B1 (fr) 2013-06-14 2015-06-19 Enersens Materiaux composites isolants comprenant un aerogel inorganique et une mousse de melamine
US10590000B1 (en) * 2013-08-16 2020-03-17 United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration High temperature, flexible aerogel composite and method of making same
US9434831B2 (en) 2013-11-04 2016-09-06 Aspen Aerogels, Inc. Benzimidazole based aerogel materials
CZ307301B6 (cs) * 2013-12-17 2018-05-23 Univerzita Tomáše Bati ve Zlíně Kompaktní útvar kompozitního charakteru a způsob jeho přípravy
KR20160101967A (ko) 2013-12-19 2016-08-26 더블유.엘. 고어 앤드 어소시에이트스, 인코포레이티드 단열성 팽창 폴리테트라플루오로에틸렌 물품
US11380953B2 (en) 2014-06-23 2022-07-05 Aspen Aerogels, Inc. Thin aerogel materials
CN106794996B (zh) 2014-10-03 2026-06-16 亚斯朋空气凝胶公司 改良的疏水性气凝胶材料
JPWO2016072093A1 (ja) * 2014-11-06 2017-08-10 パナソニックＩｐマネジメント株式会社 複合シートおよびその製造方法
FR3033732B1 (fr) * 2015-03-17 2017-04-14 Enersens Materiaux composites multicouches
KR101855033B1 (ko) 2015-03-30 2018-05-04 파나소닉 아이피 매니지먼트 가부시키가이샤 단열 시트와 그것을 이용한 전자기기, 및 단열 시트의 제조 방법
CN105965988A (zh) * 2016-05-03 2016-09-28 杭州歌方新材料科技有限公司 一种绝缘阻燃的复合材料及其制备方法
US10337408B2 (en) * 2016-06-08 2019-07-02 Mra Systems, Llc Thermal insulation blanket and thermal insulation blanket assembly
CN105908369A (zh) * 2016-06-27 2016-08-31 湖南华丰纺织有限公司 一种双面定型无胶棉絮片及其制造方法
CN110506073A (zh) 2017-03-29 2019-11-26 W.L.戈尔及同仁股份有限公司 热绝缘膨体聚四氟乙烯制品
JP2020530913A (ja) * 2017-07-24 2020-10-29 ドテレル テクノロジーズ リミテッド シュラウド
CN109458519B (zh) * 2017-09-06 2021-11-30 松下电器产业株式会社 绝热材料
WO2019232087A1 (fr) 2018-05-31 2019-12-05 Aspen Aerogels, Inc. Compositions d'aérogel renforcées de classe ignifuge
JP7304509B2 (ja) * 2019-03-28 2023-07-07 パナソニックＩｐマネジメント株式会社 断熱材およびその製造方法
CN120649305A (zh) * 2019-10-11 2025-09-16 气凝胶科技有限责任公司 聚合物-气凝胶/纤维复合材料和聚合物-气凝胶/织物复合材料以及相关系统和方法
CN111560613B (zh) * 2020-05-19 2021-12-21 江苏万力机械股份有限公司 一种汽车曲轴表面半消失型补强处理方法
CN117233058B (zh) * 2022-06-08 2026-06-16 中国石油天然气集团有限公司 一种热塑性塑料气体渗透性的表征方法及辅助测试装置
KR20250067888A (ko) * 2022-10-13 2025-05-15 아스펜 에어로겔, 인코포레이티드 압축된 에어로겔 복합재 및 제조 방법
CN115748088A (zh) * 2022-11-11 2023-03-07 东华大学 一种含气凝胶的保暖絮片及其制备方法
KR102923897B1 (ko) * 2022-12-29 2026-02-05 주식회사 아모그린텍 흡음 및 단열 복합원단 제조방법 및 이를 통해 제조된 흡음 및 단열 복합원단
CN116695280B (zh) * 2023-06-07 2024-04-12 清源创新实验室 一种三维螺旋结构弹性es纤维及其制备方法
CN117737913A (zh) * 2023-11-10 2024-03-22 东华大学 一种气凝胶改性的高保暖拒水羽绒絮片及其制备方法
CN117587576B (zh) * 2023-11-11 2025-09-12 泉州市驭风纺织科技有限公司 一种拒水保暖的纤维气凝胶复合材料及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346180C2 (de) * 1983-12-21 1996-05-15 Micropore International Ltd Starrer Wärmedämmkörper
AU598606B2 (en) * 1986-11-27 1990-06-28 Unitika Ltd. Adsorptive fiber sheet
US5256476A (en) * 1989-11-02 1993-10-26 Kuraray Chemical Co., Ltd. Fan blade comprising adsorbent particles, fine plastic particles and reinforcing fibers
US5256467A (en) * 1990-05-14 1993-10-26 Nihon Dimple Carton Co., Ltd. Heat-insulating corrugated cardboards and method for making them
US5221573A (en) * 1991-12-30 1993-06-22 Kem-Wove, Inc. Adsorbent textile product
US5271780A (en) * 1991-12-30 1993-12-21 Kem-Wove, Incorporated Adsorbent textile product and process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3120997A1 (fr) 2015-07-24 2017-01-25 Carl Freudenberg KG Non-tisse d'aerogel
DE102015009370A1 (de) 2015-07-24 2017-01-26 Carl Freudenberg Kg Aerogelvliesstoff
EP4450274A1 (fr) * 2023-04-20 2024-10-23 Deutsches Zentrum für Luft- und Raumfahrt e.V. Matériau isolant pour isolation acoustique et thermique composé de fibres composites flexibles et de granulés hydrophobes

Also Published As

Publication number Publication date
JPH10510888A (ja) 1998-10-20
CN1170445A (zh) 1998-01-14
AU4388996A (en) 1996-07-10
MX9704728A (es) 1997-10-31
CA2208510A1 (fr) 1996-06-27
FI972677L (fi) 1997-06-19
JP4237253B2 (ja) 2009-03-11
KR100368851B1 (ko) 2003-05-12
DE59508075D1 (de) 2000-04-27
PL320877A1 (en) 1997-11-10
NO972850D0 (no) 1997-06-19
EP0799343A1 (fr) 1997-10-08
ES2146795T3 (es) 2000-08-16
WO1996019607A1 (fr) 1996-06-27
NO309578B1 (no) 2001-02-19
RU2147054C1 (ru) 2000-03-27
PL181720B1 (pl) 2001-09-28
ATE191021T1 (de) 2000-04-15
FI972677A7 (fi) 1997-06-19
NO972850L (no) 1997-08-15
CN1063246C (zh) 2001-03-14
US5786059A (en) 1998-07-28
FI972677A0 (fi) 1997-06-19

Similar Documents

Publication Publication Date Title
EP0799343A1 (fr) Materiau composite non-tisse-aerogel contenant des fibres a deux composants, son procede de fabrication et son utilisation
DE19548128A1 (de) Faservlies-Aerogel-Verbundmaterial enthaltend mindestens ein thermoplastisches Fasermaterial, Verfahren zu seiner Herstellung, sowie seine Verwendung
EP0954438B1 (fr) Materiaux composites a couches multiples avec au moins une couche qui contient un aerogel et au moins une couche qui contient des fibres de terephthalate de polyethylene, leur procede de production et leur utilisation
EP0963358B1 (fr) Materiaux composites a couches multiples, dont au moins une couche qui contient un aerogel et au moins une autre couche, leur procede de production et leur utilisation
DE19533564A1 (de) Faserhaltiges Aerogel-Verbundmaterial
EP0850206B1 (fr) Materiau composite contenant un aerogel et un adhesif, procede permettant de le produire et utilisation
EP0966411B1 (fr) Utilisation d'aerogels pour amortir les bruits d'impacts et/ou de chocs
EP0672635B1 (fr) Corps moulés contenant des particules d'aérogel de silice et procédé pour leur fabrication
EP0793626B1 (fr) Materiau composite contenant un aerogel, son procede de fabrication et son utilisation
DE69713950T2 (de) Verfahren zur Herstellung einer permeablen Faserstruktur
EP0854892B1 (fr) Feuille revetue d'aerogel
DE4430642A1 (de) Aerogel- und Xerogelverbundstoffe, Verfahren zu ihrer Herstellung sowie ihre Verwendung
EP2649118A1 (fr) Matériau composite contenant des particules nanoporeuses
WO1996015997A1 (fr) Materiau composite contenant un aerogel, son procede de fabrication et son utilisation
DE3814968A1 (de) Daemmstoff der dichte 0,1 bis 0,4 g/cm(pfeil hoch)3(pfeil hoch)
DE69914501T2 (de) Synthetische glasfaserprodukte für wärmeisolierung und deren herstellung
EP3120997A1 (fr) Non-tisse d'aerogel
EP0310138A1 (fr) Elément de construction et procédé de production
DE19634109C2 (de) Aerogel- und kunststoffhaltiges, transparentes Verbundmaterial, Verfahren zu seiner Herstellung sowie seine Verwendung
DE19533565A1 (de) Aerogel- und klebstoffhaltiges Verbundmaterial, Verfahren zu seiner Herstellung
DE19622865A1 (de) Aerogel- und klebstoffhaltiges Verbundmaterial, Verfahren zu seiner Herstellung sowie seine Verwendung
EP2864087B1 (fr) Matériau composite dérivé du bois contenant des aérogels, procédé de fabrication correspondant et utilisation
EP4450274A1 (fr) Matériau isolant pour isolation acoustique et thermique composé de fibres composites flexibles et de granulés hydrophobes
DE29519649U1 (de) Dämmatte

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970721

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

17Q First examination report despatched

Effective date: 19980618

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HOECHST RESEARCH & TECHNOLOGY DEUTSCHLAND GMBH & C

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CABOT CORPORATION

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000322

REF Corresponds to:

Ref document number: 191021

Country of ref document: AT

Date of ref document: 20000415

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: DIPL.-ING. ETH H. R. WERFFELI PATENTANWALT

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59508075

Country of ref document: DE

Date of ref document: 20000427

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000509

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000623

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2146795

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001221

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010309

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: CABOT CORP.

Effective date: 20001231

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20031001

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20031110

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20031202

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20031219

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041222

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050701

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051221

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041222

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59508075

Country of ref document: DE

Representative=s name: MAI DOERR BESIER PATENTANWAELTE, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20141124

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20141124

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20141222

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59508075

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20151220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20151220