EP0799343A1 - Nonwoven fabric-aerogel composite material containing two-component fibres, a method of producing said material and the use thereof - Google Patents
Nonwoven fabric-aerogel composite material containing two-component fibres, a method of producing said material and the use thereofInfo
- 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
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)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4445771 | 1994-12-21 | ||
DE4445771 | 1994-12-21 | ||
PCT/EP1995/005083 WO1996019607A1 (en) | 1994-12-21 | 1995-12-21 | Nonwoven fabric-aerogel composite material containing two-component fibres, a method of producing said material and the use thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0799343A1 true EP0799343A1 (en) | 1997-10-08 |
EP0799343B1 EP0799343B1 (en) | 2000-03-22 |
Family
ID=6536571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95942723A Expired - Lifetime EP0799343B1 (en) | 1994-12-21 | 1995-12-21 | Nonwoven fabric-aerogel composite material containing two-component fibres, a method of producing said material and the use thereof |
Country Status (16)
Country | Link |
---|---|
US (1) | US5786059A (en) |
EP (1) | EP0799343B1 (en) |
JP (1) | JP4237253B2 (en) |
KR (1) | KR100368851B1 (en) |
CN (1) | CN1063246C (en) |
AT (1) | ATE191021T1 (en) |
AU (1) | AU4388996A (en) |
CA (1) | CA2208510A1 (en) |
DE (1) | DE59508075D1 (en) |
ES (1) | ES2146795T3 (en) |
FI (1) | FI972677A (en) |
MX (1) | MX9704728A (en) |
NO (1) | NO309578B1 (en) |
PL (1) | PL181720B1 (en) |
RU (1) | RU2147054C1 (en) |
WO (1) | WO1996019607A1 (en) |
Families Citing this family (93)
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 (en) | 1996-11-26 | 1998-11-19 | Hoechst Ag | Process for the production of organically modified aerogels by surface modification of the aqueous gel (without prior solvent exchange) and subsequent drying |
DE19702238A1 (en) * | 1997-01-24 | 1998-08-06 | Hoechst Ag | Use of aerogels for body and / or impact sound insulation |
DE19702240A1 (en) * | 1997-01-24 | 1998-07-30 | Hoechst Ag | Multilayer composite materials which have at least one airgel-containing layer and at least one further layer, processes for their production and their use |
DE19702239A1 (en) * | 1997-01-24 | 1998-07-30 | Hoechst Ag | Multilayer composite materials which have at least one airgel-containing layer and at least one layer which contains polyethylene terephthalate fibers, processes for their production and their use |
CN1244400C (en) * | 1997-04-18 | 2006-03-08 | 卡伯特公司 | Use of aerogels as adsorption agents |
DE19718740A1 (en) | 1997-05-02 | 1998-11-05 | Hoechst Ag | Process for the granulation of aerogels |
DE19718741A1 (en) | 1997-05-02 | 1998-11-05 | Hoechst Ag | Process for compacting aerogels |
GB2329514B (en) * | 1997-09-05 | 2002-02-13 | 1 Ipr Ltd | Aerogels, piezoelectric devices and uses therefor |
DE19756633A1 (en) | 1997-12-19 | 1999-06-24 | Hoechst Ag | Lyogels and aerogels subcritically dried in a packed bed with minimal particle breakdown |
DE19801004A1 (en) | 1998-01-14 | 1999-07-15 | Cabot Corp | Production of spherical lyogel useful as precursor for permanently hydrophobic aerogel |
EP1093486B1 (en) * | 1998-06-05 | 2004-08-04 | Cabot Corporation | Nanoporous interpenetrating organic-inorganic networks |
US8075716B1 (en) * | 2000-01-11 | 2011-12-13 | Lawrence Livermore National Security, Llc | Process for preparing energetic materials |
KR100909732B1 (en) | 2000-12-22 | 2009-07-29 | 아스펜 에어로겔, 인코퍼레이티드 | Aerogel Composites with Fibrous Betting |
GB0117212D0 (en) * | 2001-07-16 | 2001-09-05 | Mat & Separations Tech Int Ltd | Filter element |
EP1469939A1 (en) * | 2002-01-29 | 2004-10-27 | Cabot Corporation | Heat resistant aerogel insulation composite and method for its preparation; aerogel binder composition and method for its preparation |
RU2303744C2 (en) * | 2002-05-15 | 2007-07-27 | Кабот Корпорейшн | Heat-resistant insulating composite material and method of its production |
CN100498028C (en) * | 2003-05-06 | 2009-06-10 | 阿斯彭气凝胶有限公司 | Load-bearing, lightweight, and compact super-insulation system |
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 (en) * | 2004-11-03 | 2006-05-18 | Cottonwood Manufacturing, Inc. | Fiber insulation blanket and method of manufacture |
US7635411B2 (en) * | 2004-12-15 | 2009-12-22 | Cabot Corporation | Aerogel containing blanket |
US8461223B2 (en) | 2005-04-07 | 2013-06-11 | Aspen Aerogels, Inc. | Microporous polycyclopentadiene-based aerogels |
US9469739B2 (en) | 2005-04-07 | 2016-10-18 | Aspen Aerogels, Inc. | Microporous polyolefin-based aerogels |
US20060264133A1 (en) * | 2005-04-15 | 2006-11-23 | Aspen Aerogels,Inc. | Coated Aerogel Composites |
WO2006127182A2 (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 (en) * | 2005-08-01 | 2008-07-02 | 中国人民解放军国防科学技术大学 | Aerogel heat insulation composite material and its preparing method |
US20070202771A1 (en) * | 2005-11-02 | 2007-08-30 | Earl Douglass | Fiber insulation blanket and method of manufacture |
CN100372603C (en) * | 2005-11-18 | 2008-03-05 | 上海市纺织科学研究院 | SiO2 aerogel-bicomponent non-woven felt composite material for absorption and its manufacturing method |
WO2007140293A2 (en) | 2006-05-25 | 2007-12-06 | 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 (en) * | 2006-11-01 | 2008-05-08 | New Jersey Institute Of Technology | Aerogel-based filtration of gas phase systems |
AU2008231065B2 (en) * | 2007-03-23 | 2014-09-11 | Birdair, Inc. | Architectural membrane structures and methods for producing them |
GB2448467A (en) * | 2007-04-20 | 2008-10-22 | Parasol Panel Systems Llp | Insulating panel |
US8628834B2 (en) * | 2007-05-18 | 2014-01-14 | Cabot Corporation | Filling fenestration units |
EA017477B1 (en) * | 2007-12-14 | 2012-12-28 | Шлюмбергер Текнолоджи Б.В. | Proppants, methods of making and use thereof |
CN101903616A (en) * | 2007-12-14 | 2010-12-01 | 普拉德研究及开发股份有限公司 | The method of contact and/or processing subsurface formations |
CA2708804C (en) * | 2007-12-14 | 2016-01-12 | 3M Innovative Properties Company | Fiber aggregate |
CA2708220C (en) * | 2007-12-14 | 2016-04-12 | 3M Innovative Properties Company | Methods of treating subterranean wells using changeable additives |
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 (en) | 2008-05-01 | 2014-07-09 | 卡伯特公司 | Manufacturing and installation of insulated pipes or elements thereof |
WO2010068254A2 (en) | 2008-12-10 | 2010-06-17 | Cabot Corporation | Insulation for storage or transport of cryogenic fluids |
JP5851983B2 (en) | 2009-04-27 | 2016-02-03 | キャボット コーポレイションCabot Corporation | Airgel composition and methods for making and using the same |
CA2777244C (en) * | 2009-10-21 | 2018-01-09 | 3M Innovative Properties Company | Porous supported articles and methods of making |
JP5715150B2 (en) * | 2009-11-25 | 2015-05-07 | キャボット コーポレイションCabot Corporation | Airgel composite and its production and use |
FI122693B (en) | 2009-12-23 | 2012-05-31 | Paroc Oy Ab | Process for making a mineral wool composite material, product obtained by the process and its use as insulating material |
FI123674B (en) | 2009-12-23 | 2013-09-13 | Paroc Oy Ab | A process for making a mineral fiber composite product |
PL2547510T3 (en) * | 2010-03-18 | 2014-08-29 | Toho Tenax Europe Gmbh | Multiaxial laid scrim having a polymer nonwoven and preform for producing composite components |
US8899000B2 (en) | 2010-07-09 | 2014-12-02 | Birdair, Inc. | Architectural membrane and method of making same |
WO2012018749A1 (en) | 2010-08-03 | 2012-02-09 | International Paper Company | Fire retardant treated fluff pulp web and process for 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 |
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 |
KR102275337B1 (en) | 2011-07-07 | 2021-07-12 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Article including multi-component fibers and hollow ceramic microspheres and methods of making and using the same |
FR2981341B1 (en) | 2011-10-14 | 2018-02-16 | Enersens | PROCESS FOR MANUFACTURING XEROGELS |
ITMO20110298A1 (en) * | 2011-11-21 | 2013-05-22 | Giemme S N C Di Corradini Marco & C | PROCEDURE FOR CONSTRUCTION OF AN INSULATING PANEL AND RELATIVE INSULATING PANEL OBTAINED. |
SI24001A (en) | 2012-02-10 | 2013-08-30 | Aerogel Card D.O.O. | Cryogenic device for transport and storage of liquefaction gas |
FI126355B (en) | 2012-03-27 | 2016-10-31 | Paroc Group Oy | Insulating composite product comprising mineral wool and materials with excellent insulation properties |
US9302247B2 (en) | 2012-04-28 | 2016-04-05 | Aspen Aerogels, Inc. | Aerogel sorbents |
CN104603344B (en) | 2012-06-26 | 2020-03-31 | 卡博特公司 | Flexible insulation structure and methods of making and using same |
CN102807358B (en) * | 2012-07-13 | 2014-03-12 | 中国科学院研究生院 | Flexible aerogel block and preparation method thereof |
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 |
CN105189104B (en) | 2013-03-08 | 2020-02-04 | 斯攀气凝胶公司 | Aerogel insulation panel and manufacture thereof |
FR3007025B1 (en) | 2013-06-14 | 2015-06-19 | Enersens | INSULATING COMPOSITE MATERIALS COMPRISING INORGANIC AEROGEL AND MELAMINE FOAM |
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 (en) * | 2013-12-17 | 2018-05-23 | Univerzita Tomáše Bati ve Zlíně | A compact formation of a composite character and a method of its preparation |
WO2015095638A1 (en) | 2013-12-19 | 2015-06-25 | W.L. Gore & Associates, Inc. | Thermally insulative expanded polytetrafluoroethylene articles |
US11380953B2 (en) | 2014-06-23 | 2022-07-05 | Aspen Aerogels, Inc. | Thin aerogel materials |
KR102312822B1 (en) | 2014-10-03 | 2021-10-13 | 아스펜 에어로겔, 인코포레이티드 | Improved hydrophobic aerogel materials |
CN106660317A (en) * | 2014-11-06 | 2017-05-10 | 松下知识产权经营株式会社 | Composite sheet and manufacturing method therefor |
FR3033732B1 (en) * | 2015-03-17 | 2017-04-14 | Enersens | MULTILAYER COMPOSITE MATERIALS |
EP3159156B1 (en) | 2015-03-30 | 2018-08-29 | Panasonic Intellectual Property Management Co., Ltd. | Heat insulation sheet, electronic equipment using same, and method for manufacturing heat insulation sheet |
DE102015009370A1 (en) | 2015-07-24 | 2017-01-26 | Carl Freudenberg Kg | Aerogelvliesstoff |
CN105965988A (en) * | 2016-05-03 | 2016-09-28 | 杭州歌方新材料科技有限公司 | Insulation flame-retardation composite material and preparation method thereof |
US10337408B2 (en) | 2016-06-08 | 2019-07-02 | Mra Systems, Llc | Thermal insulation blanket and thermal insulation blanket assembly |
CN105908369A (en) * | 2016-06-27 | 2016-08-31 | 湖南华丰纺织有限公司 | Double-side shaped glue-free cotton wadding and manufacturing method thereof |
KR20190127962A (en) | 2017-03-29 | 2019-11-13 | 더블유.엘. 고어 앤드 어소시에이트스, 인코포레이티드 | Thermally Insulated Expanded Polytetrafluoroethylene Articles |
CN110997486A (en) * | 2017-07-24 | 2020-04-10 | 多特瑞尔技术有限公司 | Protective cover |
CN109458519B (en) * | 2017-09-06 | 2021-11-30 | 松下电器产业株式会社 | Heat insulating material |
SG11202011338TA (en) | 2018-05-31 | 2020-12-30 | Aspen Aerogels Inc | Fire-class reinforced aerogel compositions |
JP7304509B2 (en) * | 2019-03-28 | 2023-07-07 | パナソニックIpマネジメント株式会社 | Insulation material and its manufacturing method |
CN111560613B (en) * | 2020-05-19 | 2021-12-21 | 江苏万力机械股份有限公司 | Semi-disappearing type reinforcement treatment method for surface of automobile crankshaft |
CN116695280B (en) * | 2023-06-07 | 2024-04-12 | 清源创新实验室 | Elastic ES fiber with three-dimensional spiral structure and preparation method thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3346180C2 (en) * | 1983-12-21 | 1996-05-15 | Micropore International Ltd | Rigid thermal insulation body |
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 (en) * | 1990-05-14 | 1995-02-28 | Nihon Dimple Carton Co., Ltd. | Heat insulating corrugated board and its method of manufacture |
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 |
-
1995
- 1995-12-21 AU AU43889/96A patent/AU4388996A/en not_active Abandoned
- 1995-12-21 JP JP51952296A patent/JP4237253B2/en not_active Expired - Lifetime
- 1995-12-21 WO PCT/EP1995/005083 patent/WO1996019607A1/en active IP Right Grant
- 1995-12-21 KR KR1019970704161A patent/KR100368851B1/en not_active IP Right Cessation
- 1995-12-21 AT AT95942723T patent/ATE191021T1/en not_active IP Right Cessation
- 1995-12-21 ES ES95942723T patent/ES2146795T3/en not_active Expired - Lifetime
- 1995-12-21 MX MX9704728A patent/MX9704728A/en not_active IP Right Cessation
- 1995-12-21 DE DE59508075T patent/DE59508075D1/en not_active Expired - Lifetime
- 1995-12-21 RU RU97112468A patent/RU2147054C1/en active
- 1995-12-21 CN CN95196918A patent/CN1063246C/en not_active Expired - Lifetime
- 1995-12-21 CA CA002208510A patent/CA2208510A1/en not_active Abandoned
- 1995-12-21 US US08/860,160 patent/US5786059A/en not_active Expired - Lifetime
- 1995-12-21 PL PL95320877A patent/PL181720B1/en not_active IP Right Cessation
- 1995-12-21 EP EP95942723A patent/EP0799343B1/en not_active Expired - Lifetime
-
1997
- 1997-06-19 NO NO972850A patent/NO309578B1/en not_active IP Right Cessation
- 1997-06-19 FI FI972677A patent/FI972677A/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9619607A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2208510A1 (en) | 1996-06-27 |
JPH10510888A (en) | 1998-10-20 |
CN1170445A (en) | 1998-01-14 |
PL181720B1 (en) | 2001-09-28 |
CN1063246C (en) | 2001-03-14 |
AU4388996A (en) | 1996-07-10 |
DE59508075D1 (en) | 2000-04-27 |
ATE191021T1 (en) | 2000-04-15 |
FI972677A0 (en) | 1997-06-19 |
EP0799343B1 (en) | 2000-03-22 |
NO972850L (en) | 1997-08-15 |
JP4237253B2 (en) | 2009-03-11 |
PL320877A1 (en) | 1997-11-10 |
NO309578B1 (en) | 2001-02-19 |
NO972850D0 (en) | 1997-06-19 |
ES2146795T3 (en) | 2000-08-16 |
FI972677A (en) | 1997-06-19 |
US5786059A (en) | 1998-07-28 |
RU2147054C1 (en) | 2000-03-27 |
KR100368851B1 (en) | 2003-05-12 |
MX9704728A (en) | 1997-10-31 |
WO1996019607A1 (en) | 1996-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0799343B1 (en) | Nonwoven fabric-aerogel composite material containing two-component fibres, a method of producing said material and the use thereof | |
DE19548128A1 (en) | Nonwoven airgel composite material containing at least one thermoplastic fiber material, process for its production and its use | |
EP0963358B1 (en) | Multilayer composite materials with at least one aerogel-containing layer and at least one other layer, process for producing the same and their use | |
DE19533564A1 (en) | Fibrous airgel composite material | |
EP0850206B1 (en) | Aerogel and adhesive-containing composite, process for its production and its use | |
WO1998032602A1 (en) | Multilayer composite materials with at least one aerogel-containing layer and at least one layer containing polyethylene terephthalate fibres, process for producing the same and their use | |
EP0966411B1 (en) | Use of aerogels for deadening structure-borne and/or impact sounds | |
DE4430642A1 (en) | Airgel and xerogel composites, processes for their production and their use | |
WO1996015997A1 (en) | Composite material containing aerogel, process for manufacturing the same and the use thereof | |
WO1996015998A1 (en) | Composite material containing aerogel, process for manufacturing said material and the use thereof | |
DE4310613A1 (en) | Microporous thermal insulation molded body | |
DE19634109C2 (en) | Airgel- and plastic-containing, transparent composite material, process for its production and its use | |
EP0310138A1 (en) | Building element and process for its production | |
WO2012062370A1 (en) | Aerogel-aerogel composite material | |
DE102020118734A1 (en) | Airgel-containing insulation layer | |
DE19622865A1 (en) | Composite with uniform low thermal conductivity and dielectric constant | |
EP2864087B1 (en) | Wood composite material with aerogels and corresponding production method and use | |
DE10203984A1 (en) | Flat insulating material has pressure supporting points in the form of supporting parts made of a material arranged at a specified distance in the insulating material |
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 |