EP0799343A1 - 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

Info

Publication number
EP0799343A1
EP0799343A1 EP95942723A EP95942723A EP0799343A1 EP 0799343 A1 EP0799343 A1 EP 0799343A1 EP 95942723 A EP95942723 A EP 95942723A EP 95942723 A EP95942723 A EP 95942723A EP 0799343 A1 EP0799343 A1 EP 0799343A1
Authority
EP
European Patent Office
Prior art keywords
composite material
material according
airgel
fibers
nonwoven fabric
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.)
Granted
Application number
EP95942723A
Other languages
German (de)
English (en)
Other versions
EP0799343B1 (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
Hoechst AG
Hoechst Research and Technology Deutschland GmbH and Co KG
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 Hoechst AG, Hoechst Research and Technology Deutschland GmbH and Co KG filed Critical Hoechst AG
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

  • Nonwoven airgel composite material containing bicomponent fibers process for its production and its use
  • the invention relates to a composite material which has at least one layer of nonwoven fabric and airgel particles, a process for its production and its use.
  • aerogels because of their very low density, high porosity and small pore diameter, aerogels, in particular those with porosities above 60% and densities below 0.4 g / cm 3 , have an extremely low thermal conductivity and are therefore used as heat insulation materials, for example in the EP -A-0 171 722.
  • the high porosity also leads to a low mechanical stability of both the gel from which the airgel is dried and the dried airgel itself.
  • Aerogels in the wider sense i.e. in the sense of "gel with air as a dispersing agent" are produced by drying a suitable gel.
  • airgel in this sense includes aerogels in the narrower sense, xerogels and cryogels.
  • a dried gel is referred to as an airgel in the narrower sense if the liquid of the gel is removed at temperatures above the critical temperature and starting from pressures above the critical pressure. If, on the other hand, the liquid of the gel is removed subcritically, for example with the formation of a liquid-vapor boundary phase, the resulting gel is referred to as a xerogel. It should be noted that the gels according to the invention are
  • Aerogels in the sense of gel with air as a dispersant.
  • the molding process of the airgel is completed during the sol-gel transition.
  • the outer shape can only be changed by comminution, for example grinding, the material is too fragile for another form of processing.
  • DE-A 33 46 180 describes rigid plates made of pressed bodies on the basis of silica airgel obtained from flame pyrolysis in connection with reinforcement by mineral long fibers.
  • this silica airgel obtained from flame pyrolysis is not an airgel in the above sense, since it is not produced by drying a gel and thus has a completely different pore structure; therefore it is mechanically more stable and can therefore be pressed without destroying the microstructure , but has a higher thermal conductivity than typical aerogels in the above sense.
  • the surface of such compacts is very sensitive and must therefore be hardened by using a binder on the surface or protected by lamination with a film. Furthermore, the resulting compact is not compressible.
  • the object is achieved by a composite material which has at least one layer of nonwoven fabric and airgel particles, which is characterized in that the nonwoven fabric contains at least one bicomponent fiber material, the bicomponent fiber material having low and high-melting areas and the fibers of the nonwoven are connected both to the airgel particles and to one another by the low-melting areas of the fiber material.
  • 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 connected polymers of different chemical and / or physical structure, which have areas with different melting points, ie areas with low and high melting points.
  • the melting points of the low-melting or higher-melting areas preferably differ by at least 10 ° C.
  • the bicomponent fibers preferably have a core / sheath structure.
  • the core of the fiber consists of a polymer, preferably a thermoplastic polymer, whose melting point is higher than that of the thermoplastic polymer that forms the sheath. Polyester / copolyester bicomponent fibers are preferably used.
  • bicomponent fiber variations made of polyester / polyolefin for example polyester / polyethylene or polyester / copolyolefin or bicomponent fibers which have an elastic sheath polymer, can also be used.
  • side-by-side bicomponent fibers can also be used.
  • the nonwoven fabric can also contain at least one simple fiber material that is bonded to the low-melting areas of the bicomponent fibers during thermal consolidation.
  • the simple fibers are organic polymer fibers, e.g. Polyester, polyolefin and / or polyamide fibers, preferably polyester fibers.
  • the fibers can have round, trilobal, pentalobal, octalobal, ribbon, fir tree, barbell or other star-shaped profiles. Hollow fibers can also be used. The melting point of these simple fibers should be above that of the low-melting areas of the bicomponent fibers.
  • the bicomponent fibers ie the high and / or low melting component, and optionally the simple fibers with an IR opacifier such as carbon black, titanium dioxide, iron oxides or zirconium dioxide or mixtures thereof be blackened.
  • an IR opacifier such as carbon black, titanium dioxide, iron oxides or zirconium dioxide or mixtures thereof be blackened.
  • 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 smaller than the average diameter of the airgel particles in order to be able to bind a high proportion of airgel in the nonwoven fabric.
  • the titer of the simple fibers should preferably be between 0.8 and 40 dtex, that of the bicomponent fibers preferably between 2 and 20 dtex.
  • the weight fraction of bicomponent fiber should be between 10 and 100% by weight, preferably between 40 and 100% by weight, based on the total fiber content.
  • the volume fraction of the airgel in the composite material should be as high as possible, at least 40%, preferably over 60%. In order to still achieve mechanical stability of the composite, however, the proportion should not be above 95%, preferably not above 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).
  • Aerogels containing Si compounds are preferably used.
  • the airgel can contain IR opacifiers, such as, for example, carbon black, titanium dioxide, iron oxides, zirconium dioxide or mixtures thereof.
  • 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, -C 18 alkyl or C 6 -C 14- aryl, preferably C r 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.
  • Tue 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 (see R. Her, The Chemistry of Silica, Wiley & Sons, 1979 ), happen.
  • an activated trialkylsilane derivative such as, for example, a chlorotrialkylsilane or a hexaalkyldisilazane (see R. Her, The Chemistry of Silica, Wiley & Sons, 1979 ), happen.
  • the size of the grains depends on the application of the material. However, in order to be able to bind a high proportion of airgel granules, the particles should be larger than the fiber diameter, preferably larger than 30 ⁇ m. In order to achieve high stability, the granules should not be too coarse-grained, preferably the grains should be less than 2 cm.
  • Granules with a bimodal grain size distribution can preferably be used to submit high airgel volume fractions. Other suitable distributions can also be used.
  • the fire class of the composite material is determined by the fire class of the airgel and the fibers. Flame-retardant fiber types, such as TREVIRA CS ® , should be used to obtain the most favorable fire class of the composite material.
  • the composite material consists only of the fiber fleece which contains the airgel particles, airgel granules can break or become detached from the fiber when the composite material is mechanically stressed, so that fragments can fall out of the fleece.
  • the nonwoven fabric is provided on at least one or both sides with at least one cover layer, the cover layers being able to be the same or different.
  • the cover layers can either be thermally hardened via the low-melting Component of the bicomponent fiber or glued using another adhesive.
  • the cover layer can be, for example, a plastic film, preferably a metal film or a metallized plastic film.
  • the respective cover layer itself can consist of several layers.
  • nonwoven-airgel composite material in the form of mats or plates, which has an airgel-containing nonwoven fabric as the middle layer and has a cover layer on both sides, at least one of the cover layers containing nonwoven layers composed of a mixture of fine, simple fibers and fine bicomponent fibers, and the individual fiber layers are thermally consolidated in and among themselves.
  • the simple fibers as well as the bicomponent fibers should have diameters of less than 30 ⁇ m, preferably less than 15 ⁇ m.
  • the nonwoven layers of the cover layers can be needled.
  • Another object of the present invention is to provide a method for producing the composite material according to the invention.
  • the composite material according to the invention can be produced, for example, by the following method: To produce the nonwoven, staple fibers in the form of standard cards or cards are used. The airgel granules are sprinkled in while the fleece is being laid according to the methods familiar to the person skilled in the art. When introducing the airgel granules into the fiber composite, care should be taken to ensure that the granules are distributed as evenly as possible. This is achieved using commercially available spreading devices.
  • the nonwoven fabric can be placed on top of a top layer while sprinkling in the airgel, after this process the top top layer is applied.
  • cover layers made of finer fiber material are used, the lower non-woven layer made of fine fibers and / or bicomponent fibers is first laid and, if necessary, needled.
  • the airgel-containing fiber composite is applied thereon, as described above.
  • a layer of fine fibers and / or bicomponent fibers can be laid and, if necessary, needled.
  • the resulting fiber composite is optionally thermally consolidated under pressure at temperatures between the melting temperature of the sheath material and the lower of the melting temperatures of simple fiber material and high-melting component of the bicomponent fiber.
  • the pressure is between normal pressure and the compressive strength of the airgel used.
  • the plates and mats according to the invention are suitable as heat insulation material.
  • the plates and mats according to the invention can be used as sound absorption materials directly or in the form of resonance absorbers, since they have a low speed of sound and, compared to monolithic aerogels, have a higher sound absorption.
  • additional damping occurs due to air friction between the pores in the nonwoven material.
  • the permeability of the nonwoven fabric can be influenced by changing the fiber diameter, the nonwoven fabric density and the grain size of the airgel particles. If the fleece still contains cover layers, these cover layers should allow the sound to penetrate into the fleece and not lead to extensive reflection of the sound.
  • the plates and mats according to the invention are also suitable as adsorption materials for liquids, vapors and gases.
  • a specific adsorption can be achieved by modifying the airgel surface.
  • a fiber fleece with a basis weight of 100 was made from 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 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 1 to 2 mm diameter was sprinkled in during laying.
  • the resulting nonwoven composite material was thermally solidified at a temperature of 160 ° C. 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 1 20 staple fibers with a titer of 1.7 dtex, length 38mm, black and 50 wt .-% PES / Co-PES bicomponent fibers of the type TREVIRA 254, 2.2 dtex / 50 mm hm was first laid a fleece that served as the lower cover layer. This top layer had a basis weight of 100 g / m 2 . A nonwoven fabric made of 50% by weight of TREVIRA 292, 40 dtex / 60 mm hm and 50% by weight was then applied as the middle layer.
  • % PES / Co-PES bicomponent fibers of the TREVIRA 254 type 4.4 dtex / 50 mm hm with a basis weight of 100 g / m 2 .
  • a hydrophobic airgel granulate based on TEOS with a density of 1,50 kg / m 3 and a thermal conductivity of 23 mW / mK with grain sizes of 2 to 4 mm in diameter was sprinkled in during laying.
  • 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 thermally solidified at a temperature of 160 ° C. 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. Even after bending, no airgel granules trickled out of the mat.

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)
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 true EP0799343A1 (fr) 1997-10-08
EP0799343B1 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) FI972677A (fr)
MX (1) MX9704728A (fr)
NO (1) NO309578B1 (fr)
PL (1) PL181720B1 (fr)
RU (1) RU2147054C1 (fr)
WO (1) WO1996019607A1 (fr)

Families Citing this family (93)

* 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
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
DE19702238A1 (de) * 1997-01-24 1998-08-06 Hoechst Ag Verwendung von Aerogelen zur Körper- und/oder Trittschalldämmung
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
WO1998047594A2 (fr) * 1997-04-18 1998-10-29 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
WO1999013681A2 (fr) * 1997-09-05 1999-03-18 1... Ipr Limited Aerogels, dispositifs piezoelectriques, et leurs utilisations
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
WO1999064504A1 (fr) * 1998-06-05 1999-12-16 Cabot Corporation Reseaux organiques-inorganiques interpenetrants nanoporeux
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
EP1511959A2 (fr) * 2002-05-15 2005-03-09 Cabot Corporation Composite isolant thermoresistant, et procede de preparation associe
DK1620669T3 (da) 2003-05-06 2009-03-23 Aspen Aerogels Inc Bærende, let og kompakt isoleringssystem
US7641954B2 (en) * 2003-10-03 2010-01-05 Cabot Corporation Insulated panel and glazing system comprising the same
US7621299B2 (en) * 2003-10-03 2009-11-24 Cabot Corporation Method and apparatus for filling a vessel with particulate matter
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
EP1812639A4 (fr) * 2004-11-03 2010-05-05 Douglass Earl Stuart 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
US20060269734A1 (en) * 2005-04-15 2006-11-30 Aspen Aerogels Inc. Coated Insulation Articles and Their Manufacture
US20060264133A1 (en) * 2005-04-15 2006-11-23 Aspen Aerogels,Inc. Coated Aerogel Composites
US9476123B2 (en) 2005-05-31 2016-10-25 Aspen Aerogels, Inc. Solvent management methods for gel production
WO2007011750A2 (fr) 2005-07-15 2007-01-25 Aspen Aerogels, Inc. Composites aerogel renforces et procedes de fabrication
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
US8118177B2 (en) 2006-10-04 2012-02-21 Sellars Absorbent Materials, Inc. Non-woven webs and methods of manufacturing the same
US8318062B2 (en) 2006-10-04 2012-11-27 Sellars Absorbent Materials, Inc. Industrial absorbents 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
KR101556800B1 (ko) * 2007-03-23 2015-10-01 버드에어, 인코포레이티드 건축용 멤브레인 구조물 및 이의 제조 방법
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
US20100263870A1 (en) * 2007-12-14 2010-10-21 Dean Michael Willberg Methods of contacting and/or treating a subterranean formation
WO2009079233A2 (fr) * 2007-12-14 2009-06-25 3M Innovative Properties Company Matières solides et utilisations
CA2708220C (fr) * 2007-12-14 2016-04-12 3M Innovative Properties Company Procedes de traitement de puits souterrains a l'aide d'additifs modifiables
EP2231390A4 (fr) * 2007-12-14 2012-12-05 3M Innovative Properties Co Agrégat de fibres
US20090209155A1 (en) * 2008-02-15 2009-08-20 Chapman Thermal Products, Inc. Layered thermally-insulating fabric with thin heat reflective and heat distributing core
US20090258180A1 (en) * 2008-02-15 2009-10-15 Chapman Thermal Products, Inc. Layered thermally-insulating fabric with an insulating core
EP2283269B1 (fr) 2008-05-01 2021-07-07 Cabot Corporation Fabrication et installation de conduites isolées ou d'éléments de celles-ci
US20100146992A1 (en) * 2008-12-10 2010-06-17 Miller Thomas M Insulation for storage or transport of cryogenic fluids
BRPI1016122A2 (pt) 2009-04-27 2016-04-19 Cabot Corp composições de aerogel e métodos para preparar e usar os mesmos
KR101782659B1 (ko) 2009-10-21 2017-09-27 쓰리엠 이노베이티브 프로퍼티즈 캄파니 다공성 지지형 물품 및 제조 방법
JP5715150B2 (ja) 2009-11-25 2015-05-07 キャボット コーポレイションＣａｂｏｔ Ｃｏｒｐｏｒａｔｉｏｎ エーロゲル複合材ならびにその製造および使用方法
FI122693B (fi) 2009-12-23 2012-05-31 Paroc Oy Ab Menetelmä mineraalivilla-komposiittimateriaalin valmistamiseksi, menetelmällä valmistettu tuote ja sen käyttö eristysmateriaalina
FI123674B (fi) 2009-12-23 2013-09-13 Paroc Oy Ab Menetelmä mineraalikuitu-komposiittituotteen valmistamiseksi
PL2547510T3 (pl) * 2010-03-18 2014-08-29 Toho Tenax Europe Gmbh Wieloosiowa siatka z włókien zespojonych zawierająca włókniny polimerowe i preforma do wytwarzania kompozytowych elementów konstrukcyjnych
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
WO2013006666A1 (fr) * 2011-07-07 2013-01-10 3M Innovative Properties Company Article comprenant des fibres à multiples composants et des microsphères céramiques creuses et ses procédés de fabrication et d'utilisation
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
EP2864535B1 (fr) 2012-06-26 2018-11-14 Cabot Corporation Structures isolantes souples et leurs procédés de fabrication et d'utilisation
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
WO2014197028A2 (fr) 2013-03-08 2014-12-11 Aspen Aerogels, Inc. Panneau d'isolation par aérogel et fabrication associée
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
EP3083794A1 (fr) 2013-12-19 2016-10-26 W. L. Gore & Associates, Inc. Articles en polytétrafluoroéthylène expansé thermiquement isolants
US11380953B2 (en) 2014-06-23 2022-07-05 Aspen Aerogels, Inc. Thin aerogel materials
SG11201702138XA (en) * 2014-10-03 2017-04-27 Aspen Aerogels Inc Improved hydrophobic aerogel materials
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
CN109177365B (zh) 2015-03-30 2021-02-05 松下知识产权经营株式会社 一种绝热片、使用其的电子设备及绝热片的制造方法
DE102015009370A1 (de) 2015-07-24 2017-01-26 Carl Freudenberg Kg Aerogelvliesstoff
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
WO2018183225A1 (fr) 2017-03-29 2018-10-04 W.L. Gore & Associates, Inc. Articles en polytétrafluoroéthylène expansé thermiquement isolants
WO2019022618A1 (fr) * 2017-07-24 2019-01-31 Dotterel Technologies Limited Enveloppe
CN109458519B (zh) * 2017-09-06 2021-11-30 松下电器产业株式会社 绝热材料
CN116532055A (zh) 2018-05-31 2023-08-04 斯攀气凝胶公司 火类增强的气凝胶组成物
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
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
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

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
IS1570B (is) * 1990-05-14 1995-02-28 Nihon Dimple Carton Co., Ltd. Hitaeinangrandi bylgjupappi og aðferð til framleiðslu hans
US5271780A (en) * 1991-12-30 1993-12-21 Kem-Wove, Incorporated Adsorbent textile product and process
US5221573A (en) * 1991-12-30 1993-06-22 Kem-Wove, Inc. Adsorbent textile product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9619607A1 *

Also Published As

Publication number Publication date
JP4237253B2 (ja) 2009-03-11
FI972677A0 (fi) 1997-06-19
AU4388996A (en) 1996-07-10
JPH10510888A (ja) 1998-10-20
CN1170445A (zh) 1998-01-14
CA2208510A1 (fr) 1996-06-27
NO972850L (no) 1997-08-15
KR100368851B1 (ko) 2003-05-12
CN1063246C (zh) 2001-03-14
NO309578B1 (no) 2001-02-19
MX9704728A (es) 1997-10-31
US5786059A (en) 1998-07-28
FI972677A (fi) 1997-06-19
ES2146795T3 (es) 2000-08-16
ATE191021T1 (de) 2000-04-15
RU2147054C1 (ru) 2000-03-27
NO972850D0 (no) 1997-06-19
DE59508075D1 (de) 2000-04-27
WO1996019607A1 (fr) 1996-06-27
PL320877A1 (en) 1997-11-10
PL181720B1 (pl) 2001-09-28
EP0799343B1 (fr) 2000-03-22

Similar Documents

Publication Publication Date Title
EP0799343B1 (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
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
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
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
EP0793627B1 (fr) Materiau composite contenant un aerogel, son procede de fabrication et son utilisation
DE4430642A1 (de) Aerogel- und Xerogelverbundstoffe, Verfahren zu ihrer Herstellung sowie ihre Verwendung
WO1996015998A1 (fr) Materiau composite contenant un aerogel, son procede de fabrication et son utilisation
DE4310613A1 (de) Mikroporöser Wärmedämmformkörper
DE19634109C2 (de) Aerogel- und kunststoffhaltiges, transparentes Verbundmaterial, Verfahren zu seiner Herstellung sowie seine Verwendung
EP0310138A1 (fr) Elément de construction et procédé de production
EP2638217A1 (fr) Matériau composite aérogel-aérogel
DE102020118734A1 (de) Aerogel-haltige Isolationsschicht
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
DE10203984A1 (de) Isolierkörper auf Basis von wärmedämmenden Isoliermaterial
MXPA98001908A (en) Aerogel mixed material that contains fib

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

Owner name: STUDIO TORTA S.R.L.

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