WO2006066601A1 - Thermoformable support element - Google Patents

Thermoformable support element Download PDF

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Publication number
WO2006066601A1
WO2006066601A1 PCT/EP2004/014251 EP2004014251W WO2006066601A1 WO 2006066601 A1 WO2006066601 A1 WO 2006066601A1 EP 2004014251 W EP2004014251 W EP 2004014251W WO 2006066601 A1 WO2006066601 A1 WO 2006066601A1
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Patent type
Prior art keywords
fibers
characterized
preferably
carrier part
part according
Prior art date
Application number
PCT/EP2004/014251
Other languages
German (de)
French (fr)
Inventor
Volker Wilhelm
Detlef Barbier
Norbert Goffing
Steve Lew
Walter Tseng
Original Assignee
Carl Freudenberg 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

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/04Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/02Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary

Abstract

The invention relates to a thermoformable support element which comprises at least one layer, produced from a spunbonded nonwoven having a dry weight per unit area of 100 - 1500 g/m2. The invention also relates to support elements produced from said material, preferably for use as molded parts for vehicles.

Description

description

Thermoforming bares carrier part

technical field

The invention relates to a thermoformable carrier part comprising at least one layer of a spunbonded nonwoven, which preferably consists at least partly of contoured fibers, hollow fibers, or mixtures thereof, wherein said layer has a basis weight dry from 100 - 1500 g / m 2 at a thickness 1-100 has mm, and therefrom thermoformed carriers, particularly for molded parts of a vehicle.

State of the art

As materials for thermoformed carrier parts such. B. headliner in vehicles, are preferably thermoset composites of several materials used. Thereby forming the core of such a

Composite material with a liquid isocyanate-impregnated or smeared polyurethane foam which is solidified by crosslinking during deformation. In order for such support parts the necessary mechanical properties, in particular to achieve the necessary high rigidity, the isocyanate impregnated or coated polyurethane foam is among others on both sides with glass fibers prior to thermoforming. Nonwovens and / or films and decorative layers are then applied on the glass fibers. Such thermoformed carrier such. B. headliner, prepare because of the glass fibers contained therein disposal problems and show only a limited acoustic efficiency, which is not sufficient for vehicles. Corresponding constructions are known for example from DE-A-1974468 2, DE-A-1975710 2 or DE-A-1981315. 2

Support members that are experiencing this problem is largely avoided, are known from DE-U-2990409. 1 These carrier parts consist of staple fiber nonwovens based on thermoplastic polyester fibers that have to achieve the necessary mechanical properties, in particular a high rigidity and thermal resistance, a high proportion of so-called bicomponent binder fibers in the nonwoven fabric. To achieve the necessary rigidity up to 1800 g / m 2, basis weights of more than 1500 g / m 2 is necessary, which is not acceptable in terms of the target of reducing vehicle weight and lower fuel consumption related.

Summary of the Invention

It is an object of the present invention to provide a thermoformable carrier part is available that in a molded therefrom support, preferably molding for vehicles, an excellent acoustic efficiency, a simple disposal and excellent mechanical properties, particularly an excellent rigidity at relatively low basis weight guaranteed. This object is achieved by providing the thermoformable carrier part according to the invention comprising at least one layer of a spunbonded nonwoven, wherein the layer has a basis weight of 100 dry - having 100 mm - 1500 g / m 2 at a thickness of Figure 1.

Preferably, the layer of spun-bonded fabric of the thermoformable carrier part a basis weight of 300 - 1200 g / m 2 at a thickness of 2 - 30mm, more preferably a weight per unit area from 400 to 1000 g / m 2 at a thickness of 3-15 mm.

The thermoformable carrier part invention preferably has no glass fibers.

The used spunbond nonwoven fabrics are obtained from the corresponding polymer melt, preferably in line by spinning, drawing, laying and hardening. As solidification of spunlaids the methods generally known in the art, such as thermal fusion and possibly needling eligible.

The fibers of the spunbonded fabric are at least partially solid or hollow fibers. At least a portion of the fibers can have a round or contoured cross section.

It is also possible that all of the fibers of the spunbonded nonwoven are solid, but preferably at least part of the fibers is hollow. is also preferred that at least a portion of the fibers having a contoured cross-section.

The contoured fibers preferably have a multilobal polygonal, preferably triangular, star-shaped, flat, oval, T-shaped, Y-shaped or H-shaped cross section. Preferably, the hollow fibers have a round cross-section.

The fibers of the spunbonded fabric are preferably selected from the group consisting of synthetic, more preferably thermoplastic polymers

Group consisting of polyesters, polyamides, viscose, polyolefins, polyacrylonitriles, and mixtures of at least two polymers of the same or a different type. Particularly preferred pass the fibers of the spunbonded nonwoven made of polyester.

The spunbond also includes binding fibers. As binder fibers mono- and / or bi-component binder fibers can be used. The bicomponent binder fibers may preferably have a core / sheath or side-by-side- construction.

The layer or layers of spunbonded nonwoven are preferably consolidated by thermal fusion with the aid of the mono or bi-component binder fibers, and optionally by needling.

The needling of the spunbond material is effected by known methods.

The binder fibers mentioned can as well as the remaining fibers of the spunbonded nonwoven fabric have a round or contoured cross section, be solid or hollow, but a round cross section is preferred. The contoured cross-sections correspond to the cross sections that have been specified for the other fibers of the spunbonded nonwoven fabric. Preferably, the mono-component binding fibers have a contoured cross-section. Preferably, they are hollow. The bi-component binder fibers are preferably solid. They preferably have a contoured cross-section. The binding fibers are made of at least one synthetic thermoplastic polymer selected from the group consisting of polyesters, polyamides, rayon, polyolefins and polyacrylonitriles, wherein the bicomponent binder fibers are composed of two thermoplastic polymers having different melting points. At least one outboard part of a binder fiber is composed of a thermoplastic polymer containing at least 15 0 C lower than the melting polymers from which the fibers of the spunbonded nonwoven fabric are constructed. Provided that monocomponent binder fibers are used, these fibers are made entirely from the aforementioned lower melting thermoplastic polymers, while when using bicomponent binder fibers, the polymer for an outer part, preferably the sheath of the bicomponent binder fibers having a melting point of about is at least 15 0 C lower than the melting point of the polymer of the remaining part, preferably the core, the

Bicomponent binder fibers or other fibers of the spunbonded nonwoven fabric. Preferably, a portion, preferably the core of the bicomponent binder fiber of the same polymer as the other fibers of the spunbonded nonwoven, more preferably of the same polyester. The mono-component binder fiber and an outboard portion, preferably the cladding, of the bicomponent binder fiber is preferably made of the same kind of polymer of the thermoplastic polymer from which the rest of the fibers of the spunbonded fabric are prepared, wherein, as already stated, such a polymer or . copolymer having a lower by at least 15 0 C melting point than the melting point of the polymer, were prepared from the fibers of the spunbonded nonwoven fabric. Particularly preferred pass the mono-component binder fibers, or with an external part, preferably the cladding, of the bicomponent binder fiber of another polyester or copolyester, if the fibers of the spunbonded nonwoven or the remaining part, preferably the core of the bicomponent binder fibers of preferably consist identical polyesters.

The layer or layers of the spunbond fabric may be present up to 100.% Of bicomponent binding fibers consist.

The layer or layers of the spunbonded nonwoven preferably 20 to 80 have wt .-%, particularly preferably 40 to 60 wt%, based on the total weight of the spunbonded nonwoven fabric-layer, bi-component binder fibers, or preferably 1 -. 50 wt .-%, preferably 1 - 25 wt .-%, particularly preferably 5 to 20 wt%, based on the total weight of the spunbonded nonwoven layer of the mono-component binder fiber on..

The fibers of the spunbonded nonwoven including monocomponent binder fibers or the bicomponent binder fibers have a denier in the range of 2-20 dtex, preferably 5-15 dtex.

The layer or layers of spunbonded nonwoven fabric of the thermoformable carrier part according to the invention can also be constructed in multiple layers for adjusting the mechanical properties of the molded therefrom wearer. Preferably, the individual layers of this layer of identical spunbonded nonwovens. but it is also possible to use a spunbond of identical staple fibers and binder fibers of it different for each layer, provided that the above conditions for the binder fibers are met. This also applies to a multi-layer structure consisting of

Spunbonded nonwovens having different staple fibers and binder fibers in each case identical or a multi-layered structure of spunbonded materials, each having different fibers and respectively different binding fibers. It is also possible for the individual layers of the layer of spunbonded nonwoven by means of an adhesive based on a polyolefin, a polyamide, copolyamide, a polyester, a copolyester of an optionally cross-linkable polyurethane and / or a crosslinkable epoxy resin, or by hydroentanglement, and optionally by needling to each other. For this purpose, the adhesive in powder, adhesive nonwoven fabric (M-Web), spray adhesive, or individual adhesive dots are used in the form of an adhesive film.

Advantageously, thermoformable carrier part according to the invention also furthermore a multi-layer construction. In addition to the layer of spunbonded nonwoven, which may optionally be designed with several layers, may be at least covering a surface of the support part with a textile covering layer.

Preferably, the textile covering layer of a nonwoven fabric. As a non-woven fabric, a spunbonded nonwoven fabric, a wet non-woven fabric or a nonwoven fabric of drained based on the above-mentioned fibers, preferably polyester fibers come used. Preferably nonwovens with a low weight and a low elongation are used.

This covering layers of non-woven fabric layers preferably have a thickness between 0.05 and 1 mm and have a basis weight of 20-250, preferably between 50 and 200 and most preferably between 50 and 150 g / m 2. The used non-woven fabrics may be solidified by any known bonding methods such as needle punching, thermal bonding, calendering, chemical bonding, or hydroentangling, or a combination of these methods. 80 wt .-% may contain natural fibers and is solidified by water jet, used - a spunbonded nonwoven fabric or a dry-specified nonwoven fabric optionally up to 50 is particularly preferred.

The natural fibers are, for suitable. As wood fibers, flax, hemp, kenaf, jute or sisal fibers. The concomitant use of natural fibers it is possible to increase the rigidity of the formed from the inventive support parts makers even further. This is necessary when the thermoformed carrier by molding such. As a headliner, used in vehicles, the entire add-ons, such as sun visors, mirrors, lighting systems and cable harnesses must wear free.

Also, the second, opposite surface of the layer of spunbonded nonwoven fabric of the thermoformable carrier part according to the invention can with a further textile layer, which is preferably identical to the above-described first covering layer be covered. The dry basis weight of the preferably used non-woven fabric coming preferably corresponds to the values ​​indicated above.

Overall, the entire surface is dry weight of the thermoformable carrier part 100 of the invention - 1500, preferably 300 to 1,200, especially preferably 400 - 1000 g / m 2.

Additionally can still a visible decorative material are applied to the visible side of the above-described construction of the entire thermoformable carrier part according to the invention, so as to obtain the desired finished molded part, preferably a molded part of a vehicle after the thermoforming of the carrier part.

The joining of the individual layers can be carried out using the above-mentioned adhesive, after the layers have been optionally previously been connected by a needling loosely. For this purpose, this adhesive as a powder, adhesive nonwoven fabric (M-Web), spray adhesive, or individual adhesive dots are used in the form of an adhesive sheet can. The permanent connection of the individual layers is preferably also achieved by the subsequent thermoforming of the support member according to the invention, which is covered with the covering layers and, if appropriate the decorative layer, in particular by the thermal fusion of the binder fibers.

Another object of the present invention therefore also provides a process for producing a thermoformable carrier part by in line, solid and / or hollow fibers with a round or contoured cross-section and corresponding mono- or bicomponent binder fibers according to a corresponding melt spinning method using the appropriate nozzle devices produces, stores a spunbonded nonwoven fabric and solidified by thermal fusion using the existing mono or bicomponent binder fibers, and optionally needle punching, optionally covering with the above-mentioned additional textile layers, and, optionally, decorated and isolated to a support member.

The thermoforming process for producing a thermoformed carrier from the inventive thermoformable carrier part can take place with the aid of a so-called cold or hot pressing process. According to the hot process is thermoformable carrier part according to the invention, which is optionally provided with the cover layers and the decorative layer, placed in a preheated press and compression molded into the desired shape. According to the cold process a corresponding thermoformable carrier part is heated prior to pressing with the aid of IR-Strahlem, hot air or contact heating to the necessary temperature for the deformation and deforms in a cold press under pressure to the desired shape. A further subject of the present invention also provides a thermoformed carrier with a surface content are dry of 100 - 1500 g / m 2 and a flexural strength of> 1000 N mm. These supports are obtained by thermoforming of the inventive, thermoformable carrier part. Preferably, they are used as a molded part of a vehicle.

Very particularly preferably such a thermoformed carrier is a molded part of a vehicle, preferably in the form of a headliner, a pillar and / or door trim, a floor assembly, a rear parcel shelf, a boot liner, at least a portion of an engine compartment liner, such as a Bonnet liner, a loading mat and / or an end wall insulation.

The carrier according to the invention are distinguished by an excellent flexural strength characterized by a maximum bending strength of> 35 N measured according to EN 310 to the test parameters: sample size 90 x 75 mm, test speed: 20 mm / min, open width: LS = 80 mm, made of.

Embodiment of the invention

The subject invention will now be illustrated by some examples.

Example 1 :

A layer spunbonded nonwoven having an area weight of 500 g / m 2 consisting of 80 wt .-% polyester hollow fibers dtex having a fiber denier of about 6 and 20 wt .-% mono-component binder fibers having a fiber denier of about 6 dtex from copolyester having a melting point of 225 0 C, which according to the

Was fiber deposition easily vorvernadelt and thermally pre-fixed at 200 0 C, with a second layer of the identical spunbonded nonwoven with a basis weight of 250 g / m 2 by means of a propylene copolymer spunbond nonwoven having a basis weight of 30 g / m 2 at a temperature of 130 laminated 0C. The cumulative basis weight of the carrier part is 780 g / m 2.

The support member is heated by means of Durchströmheizung so that the temperature is 200 0 C and pressed in a cold press at 80 0 C to a headliner. This gives a molded part, which as indicated above in three-point bending test, 310 has a maximum bending strength of 35.9 N in a bending stiff ness strength of 1100 Nmm according to EN. The acoustic behavior was determined in the impedance tube according to DIN EN ISO 105341-1 and a headliner made of PU / glass fibers (prior art) in Tab. 1 compared.

Example 2:

Two layers of spunbonded nonwoven having a basis weight of 500 g / m 2 consisting of 40 wt .-% polyester fiber dtex having a fiber denier of about 6 and 60 wt .-% of bicomponent binder fibers having a fiber denier of about 6 dtex of a polyester core (83 wt .-% of the fiber weight) with a copolyester sheath (17 wt .-% of the fiber weight) with a melting point of 225 ° C, which were easily vorvernadelt after the fiber deposition and thermally pre-fixed at 200 0 C, with the aid of a propylene - copolymer spunbonded nonwoven fabric laminated with a basis weight of 30 g / m 2 at a temperature of 130 0 C. The cumulative basis weight of the carrier part is 1030 g / m 2.

The support member is heated by means of Durchströmheizung so that the temperature is 200 0 C and pressed in a cold press at 80 0 C to a headliner. This gives a molded part, which as indicated above in three-point bending test according to EN 310 has a maximum bending strength of 67.4 N with a flexural rigidity of 1236 Nmm. The acoustic behavior was determined in the impedance tube according to DIN EN ISO 105341-1 and a headliner made of PU / glass fibers (prior art) in Tab. 1 compared.

Table 1 :

Determination of sound absorption coefficient according to DIN EN ISO 105341-1

Figure imgf000013_0001

Claims

claims
1. Thermoformable support part comprising at least one layer of a spunbonded nonwoven fabric having a basis weight of 100 dry - having 100 mm - 1500 g / m 2 at a thickness of Figure 1.
2. Thermoformable carrier part according to claim 1, characterized in ddaassss TThhee FFlläächengewicht 300-1200 g / m 2 at a thickness of 2 - 30 mm.
3. Thermoformable carrier part according to claim 1 or 2, characterized ggeekkeennnnzzeeiicchhnneett ,, ddaassss TThhee FFllääichengewicht 400-1000 g / m 2 at a thickness of 3 - 15 mm.
4. Thermoformable carrier part according to any one of claims 1 to 3, characterized in that there is at least a portion of the fibers of the spunbonded fabric of solid or hollow fibers with a round or contoured cross section.
5. Thermoformable carrier part according to any one of claims 1 to 4, characterized in that the spunbonded nonwoven comprises mono- or bicomponent binder fibers.
6. Thermoformable carrier part according to any one of claims 1 to 5, characterized in that at least part of the mono-component binder fibers is solid or hollow, and the fibers have a round or contoured cross section.
7. Thermoformable carrier part according to any one of claims 5 to 6, characterized in that the proportion of mono-component binder fibers, 1 to 50 wt.%, Preferably 1 to 25 wt.%, Particularly preferably 5 to 20 wt.%, Based on the total weight the spunbonded nonwoven layer is.
8. Thermoformable carrier part according to one of claims 1 to 5, characterized in that at least a part of the bicomponent binder fibers is solid or hollow, and the fibers have a round or contoured cross section.
9. Thermoformable carrier part according to any one of claims 5 to 8, characterized in that the bicomponent binder fibers side by side or sheath / core binder fibers are.
10. Thermoplastic carrier part according to claim 8 or 9, characterized in that the spun-bonded nonwoven fabric made up to 100 wt.%
Bicomponent binding fibers.
11. Thermoplastic carrier part according to claim 10, characterized in that the proportion of bicomponent binding fibers 20 to 80 wt.%, Preferably 40 to 60 wt.%, Based on the
Total weight of the spunbonded nonwoven is.
12. Thermoformable carrier part according to any one of claims 1 to 11, characterized in that the contoured fibers or binding fibers multilobal, polygonal, triangular, star-shaped, flat, oval, have a preferably T-shaped Y-shaped or H-shaped cross section.
13. Thermoformable carrier part according to any one of claims 1 to 12, characterized in that the spunbonded nonwoven is solidified by thermal fusion with the aid of the mono or bi-component binder fibers, and optionally by needling.
14. Thermoformable carrier part according to any one of claims 1 to 13, characterized in that the fibers and binder fibers of the
Spunbonded nonwoven made from synthetic, thermoplastic polymers which preferably consist of at least one polyester, at least one polyamide, at least one viscose, at least one polyolefin and / or at least one of polyacrylonitrile or of at least two of said polymers of different type.
15. Thermoformable carrier part according to claim 14, characterized in that the fibers and a portion, preferably the core of the bicomponent binder fibers of the same polymer and at least one outboard portion, preferably the cladding, the
Bicomponent binder fibers or monocomponent binder fibers from a corresponding polymers are constructed with a lower by at least 15 0 C melting point than the melting point of the polymer of the remaining part, preferably the core of the bicomponent binder fibers or other fibers.
16. Thermoformable carrier part according to claim 15, characterized in that the fibers and at least a part, preferably the core of the bicomponent fibers of the same polyester and an outboard portion, preferably the cladding, the bicomponent
Binder fiber or the mono-component binder fiber is composed of a polyester or copolyester having a lower by at least 15 ° C melting point than the melting point of the polymer of the remaining part, preferably the core of the bicomponent binder fibers or other fibers.
17. Thermoformable carrier part according to any one of claims 1 to 13, characterized in that all the fibers have a titre dtex in the range of 2 to 20, preferably 5 dtex to 15 °.
18. Thermoformable carrier part according to one of claims 1 to 17, characterized in that the layer of spunbonded nonwoven fabric has a multilayered structure.
19. Thermoplastic carrier part according to claim 18, characterized in that the individual layers of the layer of spunbonded nonwoven by means of an adhesive based on a polyolefin, polyamide, copolyamide, a polyester, a copolyester of an optionally cross-linkable polyurethane and / or a crosslinkable epoxy resin, by needling and / or by
Hydroentangling are bonded together.
20. Thermoformable carrier part according to one of claims 1 to 19, characterized in that at least one surface of the thermoformable carrier part with a textile covering layer, preferably based on a non-woven fabric is covered.
is 21. Thermoformable carrier part according to claim 20, characterized in that the nonwoven fabric of the covering layer or covering layers, a spunbonded nonwoven fabric, a wet nonwoven fabric, or a dry-specified nonwoven fabric, preferably a spunbonded nonwoven fabric or a dry-specified nonwoven fabric of polyester fibers and optionally 50 to 80 wt.% natural fibers , the water jet was solidified.
22. Thermoformable carrier part according to claim 20 or 21, characterized in that over at least a cover layer, a visible decor material is applied.
23. A method for, in line preparation of a thermoformable carrier part according to any one of claims 1 to 22, characterized in that preparing fibers and binder fibers by the melt spinning method using the appropriate injector devices, stored to the nonwoven fabric and solidified by thermal fusion using binder fibers, and optionally needle punching optionally covering and, optionally, decorated, and isolated to the carrier part.
24. A thermoformed support consists of a support part according to any one of claims 1 to 22nd
25. A thermoformed carrier according to claim 24, having a basis weight dry from 100 to 1500 g / m 2 and a flexural strength of> 1,000 N x mm.
26. A thermoformed carrier according to claim 24 or 25 as a molded part of a vehicle.
27. A thermoformed carrier according to claim 26, in the form of a headliner, a pillar and / or door trim, a floor assembly, a rear parcel shelf, a boot liner of a
is Inlay mat, at least a portion of an engine compartment liner, such as a Bonnet liner, and / or an end wall insulation.
28. A method for producing a thermoformed carrier according to any one of claims 24 to 27, characterized in that the thermoformable pressed after the manufactured in-line method of claim 22 carrier part after or during a heating phase to the carrier shaping.
PCT/EP2004/014251 2004-12-15 2004-12-15 Thermoformable support element WO2006066601A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010108562A1 (en) * 2009-03-25 2010-09-30 Carl Freudenberg Kg Thermally fusible interlining nonwoven and production and use thereof
EP2366821A1 (en) * 2010-03-19 2011-09-21 Carl Freudenberg KG Non-woven fabric made of fibrillated natural fibres
WO2013014364A1 (en) * 2011-07-28 2013-01-31 Saint-Gobain Adfors Acoustic absorbent wall coating
FR2978459A1 (en) * 2011-07-28 2013-02-01 Saint Gobain Adfors sound absorbing wall covering comprising a layer of multilobal fibers
WO2013120885A1 (en) * 2012-02-14 2013-08-22 Groz-Beckert Kg Fibrous material part and process for the production thereof
EP2873768A1 (en) * 2013-11-19 2015-05-20 Autoneum Management AG Dual layer carpet
WO2016166322A1 (en) * 2015-04-16 2016-10-20 J.H. Ziegler Gmbh Textile composite material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937399A1 (en) * 1979-09-15 1981-04-02 Pelz Ernst Empe Werke Piece of equipment for vehicles and process for its manufacture
DE19757102A1 (en) * 1997-12-20 1999-06-24 Hp Chemie Pelzer Res & Dev Environmentally friendly, self-supporting molding used in cars
WO2001090464A2 (en) * 2000-05-24 2001-11-29 Kimberly-Clark Worldwide, Inc. Filtration medium with enhanced particle holding characteristics
US20030119403A1 (en) * 2001-11-30 2003-06-26 Reemay, Inc. Spunbond nonwoven fabric

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937399A1 (en) * 1979-09-15 1981-04-02 Pelz Ernst Empe Werke Piece of equipment for vehicles and process for its manufacture
DE19757102A1 (en) * 1997-12-20 1999-06-24 Hp Chemie Pelzer Res & Dev Environmentally friendly, self-supporting molding used in cars
WO2001090464A2 (en) * 2000-05-24 2001-11-29 Kimberly-Clark Worldwide, Inc. Filtration medium with enhanced particle holding characteristics
US20030119403A1 (en) * 2001-11-30 2003-06-26 Reemay, Inc. Spunbond nonwoven fabric

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010108562A1 (en) * 2009-03-25 2010-09-30 Carl Freudenberg Kg Thermally fusible interlining nonwoven and production and use thereof
KR101406150B1 (en) * 2009-03-25 2014-06-12 칼 프로이덴베르크 카게 Thermally fusible interlining nonwoven and production and use thereof
EP2366821A1 (en) * 2010-03-19 2011-09-21 Carl Freudenberg KG Non-woven fabric made of fibrillated natural fibres
WO2013014364A1 (en) * 2011-07-28 2013-01-31 Saint-Gobain Adfors Acoustic absorbent wall coating
FR2978459A1 (en) * 2011-07-28 2013-02-01 Saint Gobain Adfors sound absorbing wall covering comprising a layer of multilobal fibers
US9186865B2 (en) 2011-07-28 2015-11-17 Saint-Gobain Adfors Acoustic absorbent wall coating
WO2013120885A1 (en) * 2012-02-14 2013-08-22 Groz-Beckert Kg Fibrous material part and process for the production thereof
EP2873768A1 (en) * 2013-11-19 2015-05-20 Autoneum Management AG Dual layer carpet
WO2015074870A1 (en) * 2013-11-19 2015-05-28 Autoneum Management Ag Dual layer carpet
CN105874119A (en) * 2013-11-19 2016-08-17 欧拓管理公司 Dual layer carpet
WO2016166322A1 (en) * 2015-04-16 2016-10-20 J.H. Ziegler Gmbh Textile composite material

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