EP4407084B1 - Material mit einer vliesschicht aus fasern - Google Patents

Material mit einer vliesschicht aus fasern Download PDF

Info

Publication number
EP4407084B1
EP4407084B1 EP23153143.5A EP23153143A EP4407084B1 EP 4407084 B1 EP4407084 B1 EP 4407084B1 EP 23153143 A EP23153143 A EP 23153143A EP 4407084 B1 EP4407084 B1 EP 4407084B1
Authority
EP
European Patent Office
Prior art keywords
fibers
nonwoven layer
polymer
compatibilizer
polyolefin
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.)
Active
Application number
EP23153143.5A
Other languages
English (en)
French (fr)
Other versions
EP4407084A1 (de
Inventor
Yvonne Marie Malloy
Dr. Luca Assumma
Maria CONVERSO
Laura D'ANDRIA
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.)
Carl Freudenberg KG
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
Priority to ES23153143T priority Critical patent/ES3021239T3/es
Priority to PL23153143.5T priority patent/PL4407084T3/pl
Priority to PT231531435T priority patent/PT4407084T/pt
Priority to EP23153143.5A priority patent/EP4407084B1/de
Priority to DK23153143.5T priority patent/DK4407084T3/da
Priority to FIEP23153143.5T priority patent/FI4407084T3/fi
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to CA3226226A priority patent/CA3226226A1/en
Priority to US18/419,585 priority patent/US20240247416A1/en
Priority to CN202410091339.0A priority patent/CN118390244A/zh
Publication of EP4407084A1 publication Critical patent/EP4407084A1/de
Application granted granted Critical
Publication of EP4407084B1 publication Critical patent/EP4407084B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • D04H1/4274—Rags; Fabric scraps
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • D06N5/003—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch coated with bitumen
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • the invention pertains to a material comprising a nonwoven layer of fibers, to a process for providing a material comprising a nonwoven layer of fibers, and to fibers comprised in a material comprising a nonwoven layer of fibers.
  • Materials comprising a nonwoven layer of fibers find their way as substrates or carrier materials in many applications.
  • Materials comprising a nonwoven layer of fibers may for example be used as a substrate or carrier material for bitumen membranes for waterproofing in roofing, sealing and sarking applications, wherein the carrier material is impregnated with bitumen to provide a bitumen membrane.
  • a carrier material for bitumen membranes may for example be provided as a spunbonded nonwoven manufactured by extruding molten polyester polymer into polyester filaments, collecting the polyester filaments on a moving conveyor belt to form a nonwoven web, and consolidating the nonwoven web into a spunbonded nonwoven material by mechanical needling and chemical bonding.
  • Manufacturing of a material for a carrier material for bitumen membranes comprising or consisting of a nonwoven may include the step of melting recycled polyester collected from polyethylene terephthalate (PET) bottles and extruding the molten polyester polymer through orifices in a spinneret to form fibers.
  • PET polyethylene terephthalate
  • the recycling of polyester bottles has been well organized over the last decades, thereby providing a polyester source for nonwoven production which has a relatively constant quality and a low amount of contamination by other polymers, in particular by polyolefin polymers.
  • PET polyethylene terephthalate
  • Extrusion of molten polyester through orifices in a spinneret to form polyester filaments, in particular in spunbond processes, requires that the contamination of the polyester polymer with other polymers, such as polyolefins, is at a low level, generally well below 2000 ppm, to avoid filament breakage and to prevent that the tenacity of the filaments is too low for the intended application in nonwoven carrier material for bitumen membranes.
  • PET polyethylene terephthalate
  • Other sources of recycled polyester, in particular of recycled polyethylene terephthalate, may contain higher levels of contamination with other polymers, including polyolefins, such as polyethylene and/or polypropylene. These higher levels of contamination of the polyethylene terephthalate to be recycled result in increased filament breakage and lower tenacity of the filaments during manufacturing of nonwovens for carrier materials.
  • EP 2 455 523 discloses a PET spunbond for use as a reinforcing substrate for bituminous membranes.
  • a process for providing a material comprising a nonwoven layer of fibers comprising the steps of providing a material composition comprising 90 to 98.7 wt.% of a recycled polyester polymer, 1 to 5 wt.% of a polyolefin polymer and 0.3 to 5 wt.% of a compatibilizer based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer, melting the material composition, extruding the molten material composition through spinning holes in a spinneret to form extruded fibers, supplying the extruded fibers onto a moving surface to form a nonwoven web of fibers and consolidating the nonwoven web to obtain a material comprising a nonwoven layer of fibers enables to use recycled polyester from sources comprising higher levels of contamination with polyolefins, such as polyethylene and/or polypropylene.
  • the process enables to use recycled polyester from sources comprising high levels of contamination with polyolefins, such as polyethylene and/or polypropylene, without the need of chemical recycling of the polyester for removing contaminants.
  • the process preferably excludes a step of chemical recycling of the polyester, wherein the polyester is depolymerized into monomers, wherein the monomers are purified by at least a part of the contaminants, and re-polymerized into polyester.
  • the fibers comprised in the nonwoven layer of fibers provided by the process may have an average tenacity of at least 2.4 cN/dtex as determined according to ISO 5079:2020.
  • the fibers comprised in the nonwoven layer of fibers may have an average tenacity of at least 2.5 cN/dtex, or at least 2.7 cN/dtex, or of at least 3.0 cN/dtex, or of at least 3.5 cN/dtex, or of at least 4.0 cN/dtex.
  • the material composition provided in the process enables to obtain extruded fibers having an average tenacity of at least 2.4 cN/dtex without being confronted with a too high level of fiber breakage during extrusion of the molten material composition.
  • the fibers comprised in the nonwoven layer of fibers provided by the process may have an elongation at break of at least 50%, preferably of at least 60%, more preferably of at least 70%, as determined according to ISO 5079:2020, using an MTS Exceed E42 dynamometer.
  • the process enables to provide fibers in the nonwoven layer of fibers which do not comprise voids within the fibers, as debonding between the polyester polymer and the polyolefin polymer is prevented by the material composition.
  • the process may comprise a step of solidifying the extruded fibers before the fibers are supplied on a moving surface, for example by blowing air of ambient temperature against the extruded fibers.
  • the process may comprise a step of drawing the extruded fibers to further improve the properties of the fibers, in particular the tenacity of the fibers.
  • the step of drawing the extruded fibers may comprise drawing by an air flow and/or by drawing by two godets having different circumferential speeds.
  • the material composition provided in the process enables to draw extruded, solidified fibers without being confronted with a too high level of fiber breakage during drawing.
  • the process comprises the step of supplying the extruded fibers to form a nonwoven web of fibers, and consolidating the nonwoven web to obtain a material comprising a nonwoven layer of fibers.
  • the fibers may be supplied onto any suitable surface to form a nonwoven web of fibers.
  • the fibers may be supplied onto a moving surface, for example a rotating drum or a conveyor belt.
  • the fibers may be supplied onto a moving surface which is air-permeable to enable applying a vacuum below the moving surface to fixate the nonwoven web of fibers on the moving surface until the nonwoven web of fibers is being consolidated into a nonwoven layer of fibers.
  • the moving surface may advantageously be an air permeable conveyor belt.
  • the process may comprise the step of consolidating the nonwoven web of fibers into a nonwoven layer of fibers by any known suitable consolidating process or any combination of consolidating processes.
  • the step of consolidating the nonwoven web of fibers into a nonwoven layer of fibers may include a mechanical bonding process, such as mechanical needling and/or fluid entanglement, for example hydroentanglement.
  • the step of consolidating the nonwoven web of fibers into a nonwoven layer of fibers may include a chemical bonding process, wherein the nonwoven web of fibers or the nonwoven layer of fibers is impregnated with a chemical binder composition, for example a latex binder composition, and curing the binder composition.
  • the step of consolidating the nonwoven web of fibers into a nonwoven layer of fibers may include a thermal bonding process, such as hot air bonding and/or calendaring.
  • the recycled polyester polymer provided in the material composition in the process preferably is a recycled polyethylene terephthalate enabling to obtain high breaking strength and high elongation at break in the fibers and/or in the nonwoven layer of fibers.
  • the polyolefin polymer provided in the material composition in the process may be a polyethylene, preferably a recycled polyethylene.
  • the compatibilizer provided in the material composition in the process may be a polyolefin polymer grafted with maleic anhydride, a polyolefin co-polymer grafted with maleic anhydride or a mixture thereof.
  • the fibers of the nonwoven layer of fibers comprise less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2 wt.%, even more preferably less than 1 wt.%, of a polyolefin polymer grafted with maleic anhydride, a polyolefin co-polymer grafted with maleic anhydride or a mixture thereof.
  • the compatibilizer provided in the material composition in the process may be an ethylene-methyl-acrylate copolymer, an ethylene-methyl-acrylate copolymer grafted with maleic anhydride or a mixture thereof.
  • the material composition comprises less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2 wt.%, even more preferably less than 1 wt.%, most preferably less than 0.5 wt.%, of an ethylene-methyl-acrylate copolymer, an ethylene-methyl-acrylate copolymer grafted with maleic anhydride or a mixture thereof.
  • the compatibilizer provided in the material composition in the process may be a polymer comprising a glycidyl-methacrylate monomer, for example an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer.
  • the fibers of the nonwoven layer of fibers comprise less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2.5 wt.%, even more preferably less than 1.5 wt.%, of a polymer comprising a glycidyl-methacrylate monomer, for example an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer.
  • the process may exclude a step of polycondensation of the recycled polyester for increasing the viscosity of the recycled polyester, as the material composition provided in the process enables extruding the material composition through spinning holes in a spinneret to form extruded fibers having high average tenacity, preferably of at least 2.4 cN/dtex, although the viscosity of the compound comprising the recycled polyester polymer and the polyolefin polymer is relatively low.
  • the material composition in the process may have a viscosity of at least 1100 Poise (110 Pa.s), or at least 1200 Poise (120 Pa.s), or at least 1250 Poise (125 Pa.s), calculated from the melt flow rate determined with a melt flow tester at a temperature of 290°C and a weight of 2.16 kg and a humidity level in the material composition of 91 ppm, enabling to improve the strength of the fibers.
  • the process may include a step of providing threads extending in the longitudinal direction of the material, in particular of high modulus threads comprising fibers, filaments or yarns, such as for example based on glass, polyester, carbon, cellulose or metal, to enable that the material can withstand elevated temperatures and/or high tensions which are often encountered in production processes wherein carrier materials are used.
  • the threads are based on glass.
  • the layer of threads extending in the longitudinal direction of the material may be provided in the process as a layer of unidirectional threads spaced at a distance from one another, preferably spaced at a constant distance from one another.
  • the distance between two neighbouring threads extending in the longitudinal direction of the material may be at least 1 mm, preferably at least 2 mm, more preferably at least 5 mm.
  • the layer of threads extending in the longitudinal direction of the material may be provided in the process as a scrim.
  • a scrim is an open lattice structure composed of at least two sets of parallel threads, wherein the first group of parallel threads is oriented at an angle, generally at a 90° angle, to the second group of parallel threads.
  • the first group of parallel threads may be connected to the second group of parallel threads by chemical bonding and/or the first group of parallel threads may be interwoven with the second group of parallel threads to form a woven scrim.
  • the openings in the scrim have at least one dimension in the plane of the carrier material being at least 1 mm, preferably at least 2 mm, more preferably at least 5 mm. More preferably, the openings in the scrim have two dimensions in the plane of the carrier material being at least 1 mm, preferably at least 2 mm, more preferably at least 5 mm.
  • a nonwoven layer of fibers is understood to be a sheet of fibers, continuous filaments, or chopped yarns of any nature or origin, that have been formed into a web by any means, and bonded together by any means, with the exception of weaving or knitting, and felts obtained by wet milling are not nonwovens.
  • the continuous filaments, or chopped yarns are randomly laid and do not follow any specific orientation.
  • the nonwoven layer of fibers comprised in the material may be any type of nonwoven, such as for example staple fiber nonwovens produced by well-known processes, such as for example carding processes, wet-laid processes or air-laid processes or any combination thereof.
  • the nonwoven layer of fibers may also be a nonwoven composed of filaments produced by well-known spunbonding processes wherein filaments are extruded from a spinneret and subsequently laid down on a conveyor belt as a web of filaments and subsequently consolidating the web to form a nonwoven layer of fibers, or by a two-step process wherein filaments are spun and wound on bobbins, preferably in the form of multifilament yarns, followed by the step of unwinding the yarns and/or multifilament yarns from the bobbins, optionally opening the multifilament yarns into essentially individual filaments and/or filaments groups comprising 2 to 50 filaments, preferably 2 to 25 filaments, more preferably 2 to 10 filaments, and laying the
  • fibers refers to both staple fibers and filaments.
  • Staple fibers are fibers which have a specified, relatively short length in the range of 2 to 200 mm.
  • Filaments are fibers having a length of more than 200 mm, preferably more than 500 mm, more preferably more than 1000 mm. Filaments may even be virtually endless, for example when formed by continuous extrusion and spinning of a filament through a spinning hole in a spinneret.
  • the fibers in the nonwoven layer of fibers are filaments in order to provide higher tensile strength and/or higher tear strength to the material useable as a carrier material for bitumen membranes.
  • the fibers in the nonwoven layer of fibers may have a linear density in the range of 1 to 25 dtex, preferably in the range of 1 to 20 dtex, more preferably in the range of 1.5 to 15 dtex, most preferably in the range of 2 to 10 dtex to provide high tensile strength and/or tear strength in combination with good mass regularity to the carrier material while maintaining sufficient structure openness for impregnation, for example with bitumen into the material.
  • the unit dtex defines the fineness of the fibers as their weight in grams per 10000 meter, and can be determined in accordance with ISO 1973, using a Lenzing Vibroskope 400.
  • the fibers in the nonwoven layer of fibers may have any cross-sectional shape, including round, trilobal, multi-lobal or rectangular.
  • the fibers in the nonwoven layer of fibers may be mono-component fibers, bicomponent fibers, such as bicomponent fibers having a core-sheath, a side-by-side or a segmented pie configuration, or multi-component fibers.
  • a material comprising a nonwoven layer of fibers comprising fibers comprising 90 to 98.7 wt.% of a recycled polyester polymer, 1 to 5 wt.% of a polyolefin polymer and a 0.3 to 5 wt.% of a compatibilizer based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the fibers comprised in the nonwoven layer of fibers may have an average tenacity of at least 2.4 cN/dtex as determined according to ISO 5079:2020.
  • the fibers comprised in the nonwoven layer of fibers may have an average tenacity of at least 2.5 cN/dtex, or at least 2.7 cN/dtex, or of at least 3.0 cN/dtex, or of at least 3.5 cN/dtex, or of at least 4.0 cN/dtex.
  • the fibers comprised in the nonwoven layer of fibers may have an elongation at break of at least 50%, preferably of at least 60%, more preferably of at least 70%.
  • the nonwoven layer of fibers comprised in the material may be consolidated by any known suitable consolidating process or any combination of consolidating processes.
  • the nonwoven layer of fibers comprised in the material may be consolidated by mechanical bonding processes, such as mechanical needling and/or fluid entanglement, for example hydroentanglement, by chemical bonding processes, wherein the nonwoven web of fibers or the nonwoven layer of fibers is impregnated with a chemical binder composition, for example a latex binder composition, and curing the binder composition, and/or by thermal bonding processes, such as hot air bonding and/or calendaring.
  • the recycled polyester polymer comprised in the fibers of the nonwoven layer of fibers preferably is a recycled polyethylene terephthalate enabling to obtain high breaking strength and high elongation at break in the fibers and/or in the nonwoven layer of fibers.
  • the polyolefin polymer comprised in the fibers of the nonwoven layer of fibers may be a polyethylene, preferably a recycled polyethylene.
  • the compatibilizer comprised in the fibers of the nonwoven layer of fibers may be a polyolefin polymer grafted with maleic anhydride, a polyolefin co-polymer grafted with maleic anhydride or a mixture thereof.
  • the fibers of the nonwoven layer of fibers comprise less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2 wt.%, even more preferably less than 1 wt.%, of a polyolefin polymer grafted with maleic anhydride, a polyolefin co-polymer grafted with maleic anhydride or a mixture thereof.
  • the compatibilizer comprised in the fibers of the nonwoven layer of fibers may be an ethylene-methyl-acrylate copolymer, an ethylene-methyl-acrylate copolymer grafted with maleic anhydride or a mixture thereof.
  • the fibers of the nonwoven layer of fibers comprise less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2 wt.%, even more preferably less than 1 wt.%, most preferably less than 0.5 wt.%, of an ethylene-methyl-acrylate copolymer, an ethylene-methyl-acrylate copolymer grafted with maleic anhydride or a mixture thereof.
  • the compatibilizer provided in the material composition in the process may be a polymer comprising a glycidyl-methacrylate monomer, for example an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer.
  • the fibers of the nonwoven layer of fibers comprise less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2.5 wt.%, even more preferably less than 1.5 wt.%, of a polymer comprising a glycidyl-methacrylate monomer, for example an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer.
  • the material comprising a nonwoven layer of fibers may further comprise threads extending in the longitudinal direction of the material, in particular of high modulus threads comprising fibers, filaments or yarns, such as for example based on glass, polyester, carbon, cellulose or metal, to enable that the material can withstand elevated temperatures and/or high tensions which are often encountered in production processes wherein carrier materials are used.
  • the threads are based on glass.
  • the layer of threads extending in the longitudinal direction of the material may be provided as a layer of unidirectional threads spaced at a distance from one another, preferably spaced at a constant distance from one another.
  • the distance between two neighbouring threads extending in the longitudinal direction of the material may be at least 1 mm, preferably at least 2 mm, more preferably at least 5 mm.
  • the layer of threads extending in the longitudinal direction of the material may be provided as a scrim.
  • a scrim is an open lattice structure composed of at least two sets of parallel threads, wherein the first group of parallel threads is oriented at an angle, generally at a 90° angle, to the second group of parallel threads.
  • the first group of parallel threads may be connected to the second group of parallel threads by chemical bonding and/or the first group of parallel threads may be interwoven with the second group of parallel threads to form a woven scrim.
  • the openings in the scrim have at least one dimension in the plane of the carrier material being at least 1 mm, preferably at least 2 mm, more preferably at least 5 mm. More preferably, the openings in the scrim have two dimensions in the plane of the carrier material being at least 1 mm, preferably at least 2 mm, more preferably at least 5 mm.
  • the nonwoven layer of fibers comprised in the material may be any type of nonwoven, such as for example staple fiber nonwovens produced by well-known processes, such as for example carding processes, wet-laid processes or air-laid processes or any combination thereof.
  • the nonwoven layer of fibers may also be a nonwoven composed of filaments produced by well-known spunbonding processes wherein filaments are extruded from a spinneret and subsequently laid down on a conveyor belt as a web of filaments and subsequently consolidating the web to form a nonwoven layer of fibers, or by a two-step process wherein filaments are spun and wound on bobbins, preferably in the form of multifilament yarns, followed by the step of unwinding the yarns and/or multifilament yarns from the bobbins, optionally opening the multifilament yarns into essentially individual filaments and/or filaments groups comprising 2 to 50 filaments, preferably 2 to 25 filaments, more preferably 2 to 10 filaments, and laying the
  • the fibers in the nonwoven layer of fibers are filaments in order to provide higher tensile strength and/or higher tear strength to the material useable as a carrier material for bitumen membranes.
  • the fibers in the nonwoven layer of fibers may have a linear density in the range of 1 to 25 dtex, preferably in the range of 1 to 20 dtex, more preferably in the range of 1.5 to 15 dtex, most preferably in the range of 2 to 10 dtex to provide high tensile strength and/or tear strength in combination with good mass regularity to the carrier material while maintaining sufficient structure openness for impregnation, for example with bitumen into the material.
  • the fibers in the nonwoven layer of fibers may have any cross-sectional shape, including round, trilobal, multi-lobal or rectangular.
  • the fibers in the nonwoven layer of fibers may be mono-component fibers, bicomponent fibers, such as bicomponent fibers having a core-sheath, a side-by-side or a segmented pie configuration, or multi-component fibers.
  • the material comprising a nonwoven layer of fibers comprising fibers comprising 90 to 98.7 wt.% of a recycled polyester polymer, 1 to 5 wt.% of a polyolefin polymer and 0.3 to 5 wt.% of a compatibilizer based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer, may be used as a carrier material in various applications, including as a carrier material for bitumen membranes for waterproofing, for example in roofing applications, as a primary backing or secondary backing for tufted carpets, as a carrier material for vinyl flooring, and as carrier material for filter media.
  • a fiber for a nonwoven layer of fibers comprising 90 to 98.7 wt.% of a recycled polyester polymer, 1 to 5 wt.% of a polyolefin polymer and a 0.3 to 5 wt.% of a compatibilizer based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the fiber for a nonwoven layer of fibers may have an average tenacity of at least 2.4 cN/dtex as determined according to ISO 5079:2020.
  • the fiber for a nonwoven layer of fibers may have an average tenacity of at least 2.5 cN/dtex, or at least 2.7 cN/dtex, or of at least 3.0 cN/dtex, or of at least 3.5 cN/dtex, or of at least 4.0 cN/dtex.
  • the fiber for a nonwoven layer of fibers may have an elongation at break of at least 50%, preferably of at least 60%, more preferably of at least 70%.
  • the recycled polyester polymer comprised in the fibers for a nonwoven layer of fibers preferably is a recycled polyethylene terephthalate enabling to obtain high breaking strength and high elongation at break in the fiber.
  • the polyolefin polymer comprised in the fiber for a nonwoven layer of fibers may be a polyethylene, preferably a recycled polyethylene.
  • the compatibilizer comprised in the fiber for a nonwoven layer of fibers may be a polyolefin polymer grafted with maleic anhydride, a polyolefin co-polymer grafted with maleic anhydride or a mixture thereof.
  • the fiber for a nonwoven layer of fibers comprises less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2 wt.%, even more preferably less than 1 wt.%, of a polyolefin polymer grafted with maleic anhydride, a polyolefin co-polymer grafted with maleic anhydride or a mixture thereof.
  • the compatibilizer comprised in the fiber for a nonwoven layer of fibers may be an ethylene-methyl-acrylate copolymer, an ethylene-methyl-acrylate copolymer grafted with maleic anhydride or a mixture thereof.
  • the fiber for a nonwoven layer of fibers comprises less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2 wt.%, even more preferably less than 1 wt.%, most preferably less than 0.5 wt.%, of an ethylene-methyl-acrylate copolymer, an ethylene-methyl-acrylate copolymer grafted with maleic anhydride or a mixture thereof.
  • the compatibilizer provided in the material composition in the process may be a polymer comprising a glycidyl-methacrylate monomer, for example an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer.
  • the fibers of the nonwoven layer of fibers comprise less than 4 wt.%, more preferably less than 3 wt.%, more preferably less than 2.5 wt.%, even more preferably less than 1.5 wt.%, of a polymer comprising a glycidyl-methacrylate monomer, for example an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer.
  • the fiber for a nonwoven layer of fibers may have a linear density in the range of 1 to 25 dtex, preferably in the range of 1 to 20 dtex, more preferably in the range of 1.5 to 15 dtex, most preferably in the range of 2 to 10 dtex to provide high tensile strength and/or tear strength to the nonwoven layer of fibers while enabling to maintain sufficient structure openness for impregnation, for example with bitumen into the material.
  • the fiber for a nonwoven layer of fibers may have any cross-sectional shape, including round, trilobal, multi-lobal or rectangular.
  • the fiber for a nonwoven layer of fibers may be a mono-component fiber, a bicomponent fiber, such as a bicomponent fiber having a core-sheath, a side-by-side or a segmented pie configuration, or a multi-component fiber.
  • Fibers are formed by provided a material composition, melting the material composition in an extruder at 285°C, extruding the molten material composition at a throughput of 2.2 g/min/spinning hole and 2.5 g/min/spinning hole through the spinning holes of a spinneret comprising four spinning holes to form extruded fibers, and winding the fibers.
  • the material composition in example 1 was basically composed of 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene, but additionally comprised 1.25 wt.% of a compatibilizer, being a polymer comprising a glycidyl-methacrylate monomer, based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the compatibilizer was an ethylene-butyl acrylate - glycidyl methacrylate reactive terpolymer having a melt flow rate of 12 g/10 min according to ISO1133 at a temperature of 190°C and a weight of 2.16 kg. Fibers were spun at a throughput of 2.2 g/min/hole (example 1a) and 2.5 g/min/hole (example 1b).
  • the material composition in example 2 was basically composed of 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene, but additionally comprised 2.5 wt.% of a compatibilizer, being a polyolefin grafted maleic anhydride, based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the compatibilizer was a statistic copolymer based on polypropylene and polyethylene grafted with maleic anhydride having a maleic anhydride content of 1.7% and a melt flow rate of 30 g/10 min according to ISO1133 at a temperature of 190°C and a weight of 2.16 kg.
  • the material composition had a viscosity of 1280 Poise (128 Pa.s) calculated from the melt flow rate determined with a melt flow tester at a temperature of 290°C and a weight of 2.16 kg and a humidity level in the material composition of 91 ppm. Fibers were spun at a throughput of 2.2 g/min/hole (example 2a) and 2.5 g/min/hole (example 2b).
  • the material composition in example 3 was basically composed of 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene, but additionally comprised 1.25 wt.% of a compatibilizer, being an ethylene-methyl-acrylate random copolymer, based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the compatibilizer was an ethylene-methyl-acrylate copolymer having a methyl-acrylate content of 24 wt.% and a melt index of 10.0 g/10 min according to D1238 at a temperature of 190°C and a weight of 2.16 kg. Fibers were spun at a throughput of 2.2 g/min/hole (example 3a) and 2.5 g/min/hole (example 3b).
  • the material composition in example 4 was basically composed of 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene, but additionally comprised 1.25 wt.% of a compatibilizer, being an ethylene-methyl-acrylate block copolymer, based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the compatibilizer was an ethylene methyl acrylate copolymer having a methyl-acrylate content of 22 wt.% and a melt index of 2.0 g/10 min according to D1238 at a temperature of 190°C and a weight of 2.16 kg. Fibers were spun at a throughput of 2.2 g/min/hole (example 4a) and 2.5 g/min/hole (example 4b).
  • the material composition in example 5 was basically composed of 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene, but additionally comprised 1.25 wt.% of a compatibilizer, being an ethylene-methyl-acrylate random copolymer grafted with maleic anhydride, based on the total weight of the recycled polyester polymer, the polyolefin polymer and the compatibilizer.
  • the compatibilizer was a maleic anhydride modified ethylene methyl acrylate copolymer having a methyl-acrylate content of 24 wt.% and a melt index of 2.7 g/10 min according to D1238. Fibers were spun at a throughput of 2.2 g/min/hole (example 5a) and 2.5 g/min/hole (example 5b).
  • the material composition in comparative example 1 consisted for 100% of recycled polyethylene terephthalate from PET bottles. Fibers were spun at a throughput of 2.2 g/min/hole (comparative example 1a) and 2.5 g/min/hole (comparative example 1b). The material composition had a viscosity of 1401 Poise (140.1 Pa.s) calculated from the melt flow rate determined with a melt flow tester at a temperature of 290°C and a weight of 2.16 kg and a humidity level in the material composition of 91 ppm. Fibers were spun at a throughput of 2.2 g/min/hole (Comp. 1a) and 2.5 g/min/hole (Comp. 1b).
  • the material composition in comparative example 2 consisted for 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene. Fibers were spun at a throughput of 2.2 g/min/hole and 2.5 g/min/hole. The material composition had a viscosity of 1083 Poise (108.3 Pa.s) calculated from the melt flow rate determined with a melt flow tester at a temperature of 290°C and a weight of 2.16 kg and a humidity level in the material composition of 91 ppm. Fibers were spun at a throughput of 2.2 g/min/hole (Comp. 2a) and 2.5 g/min/hole (Comp. 2b).
  • Table 1 Fiber properties Example Throughput (g/m in/hole) Linear density (dtex) Tenacity (cN/dtex) Elongation (%) Stable spinning Broken fibers 1a 2.2 4.92 2.4 77.0 Yes Few 1b 2.5 5.62 2.4 85.4 Yes Few 2a 2.2 6.21 2.7 76.8 Yes Few 2b 2.5 6.10 3.0 66.9 Yes Few 3a 2.2 4.83 3.0 55.2 Yes Few 3b 2.5 4.96 3.2 54.1 Yes Few 4a 2.2 4.44 3.4 51.7 Yes Few 4b 2.5 4.96 3.0 61.0 Yes Few 5a 2.2 5.04 3.0 61.3 Yes Few 5b 2.5 5.73 2.8 69.9 Yes Few Comp. 1a 2.2 5.21 3.2 61.1 Yes Few Comp. 1b 2.5 5.54 3.2 65.4 Yes Few Comp. 2a 2.2 5.79 2.6 76.7 No Many Comp. 2b 2.5 5.65 2.6 69.3 No Many
  • the fibers formed from a material composition which consisted for 70 wt.% of recycled polyethylene terephthalate from PET bottles and 30 wt.% of a recycled polyester comprising 5.3 wt.% of polyethylene contamination, of comparative example 2a and 2b have a lower tenacity and a higher elongation than the fibers formed from a material composition which consisted for 100% of recycled polyethylene terephthalate from PET bottles of comparative example 1a and 1b. Fiber spinning was very unstable with a large number of broken filaments.
  • example 1 comprised a polymer comprising a glycidyl-methacrylate monomer
  • the fiber spinning became stable and the number of broken filaments was reduced, as compared to fibers made from the material composition of comparative example 2.
  • the fiber spinning became stable and the number of broken filaments was reduced, as compared to fibers made from the material composition of comparative example 2.
  • the tenacity of the fibers was increased as compared to fibers made from the material composition of comparative example 2.
  • the fiber spinning became stable and the number of broken filaments was reduced, as compared to fibers made from the material composition of comparative example 2.
  • the tenacity of the fibers was increased as compared to fibers made from the material composition of comparative example 2.
  • the tenacity of the fibers at a throughput of 2.5 g/min/spinning hole was even at the same level as fibers made from the material composition of comparative example 1, i.e. from 100% of recycled polyethylene terephthalate from PET bottles.
  • the fiber spinning became stable and the number of broken filaments was reduced, as compared to fibers made from the material composition of comparative example 2.
  • the tenacity of the fibers was increased as compared to fibers made from the material composition of comparative example 2.
  • the tenacity of the fibers at a throughput of 2.2 g/min/spinning hole was even at the higher level as fibers made from the material composition of comparative example 1, i.e. from 100% of recycled polyethylene terephthalate from PET bottles.
  • the fiber spinning became stable and the number of broken filaments was reduced, as compared to fibers made from the material composition of comparative example 2.
  • the tenacity of the fibers was increased as compared to fibers made from the material composition of comparative example 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)

Claims (15)

  1. Verfahren zur Bereitstellung eines Materials, das eine Faservliesschicht umfasst, umfassend die Schritte der Bereitstellung einer Materialzusammensetzung umfassend 90 bis 98,7 Gew.-% an einem recycelten Polyesterpolymer, 1 bis 5 Gew.-% an einem Polyolefinpolymer und 0,3 bis 5 Gew.-% an einem Verträglichmacher bezogen auf das Gesamtgewicht des recycelten Polyesterpolymers, des Polyolefinpolymers und des Verträglichmachers, Schmelzen der Materialzusammensetzung, Extrudieren der geschmolzenen Materialzusammensetzung durch Spinnlöcher in einer Spinndüse, um extrudierte Fasern zu bilden, Zuführen der extrudierten Fasern, um eine Faservliesbahn zu bilden, und Konsolidieren der Vliesbahn, um ein Material zu erhalten, das eine Faservliesschicht umfasst.
  2. Verfahren gemäß Anspruch 1, wobei die Fasern eine mittlere Festigkeit von wenigstens 2,4 cN/dtex, bestimmt gemäß ISO 5079:2020, aufweisen.
  3. Verfahren gemäß einem der Ansprüche 1 bis 2, wobei das recycelte Polyesterpolymer ein recyceltes Polyethylenterephthalat ist.
  4. Verfahren gemäß einem der Ansprüche 1 bis 3, wobei das Polyolefinpolymer ein Polyethylen, vorzugsweise ein recyceltes Polyethylen, ist.
  5. Verfahren gemäß einem der Ansprüche 1 bis 4, wobei der Verträglichmacher ein mit Maleinsäureanhydrid gepfropftes Polyolefinpolymer, ein mit Maleinsäureanhydrid gepfropftes Polyolefin-Copolymer oder ein Gemisch davon ist.
  6. Verfahren gemäß einem der Ansprüche 1 bis 4, wobei der Verträglichmacher ein Ethylen-Methylacrylat-Copolymer, ein mit Maleinsäureanhydrid gepfropftes Ethylen-Methylacrylat-Copolymer oder ein Gemisch davon ist.
  7. Verfahren gemäß einem der Ansprüche 1 bis 4, wobei der Verträglichmacher ein Polymer ist, das ein Glycidylmethacrylat-Monomer umfasst.
  8. Material umfassend eine Faservliesschicht, wobei die Faservliesschicht Fasern umfasst, die 90 bis 98,7 Gew.-% an einem recycelten Polyesterpolymer, 1 bis 5 Gew.-% an einem Polyolefinpolymer und 0,3 bis 5 Gew.-% an einem Verträglichmacher bezogen auf das Gesamtgewicht des recycelten Polyesterpolymers, des Polyolefinpolymers und des Verträglichmachers umfassen.
  9. Material umfassend eine Faservliesschicht gemäß Anspruch 8, wobei die Fasern eine mittlere Festigkeit von wenigstens 2,4 cN/dtex, bestimmt gemäß ISO 5079:2020, aufweisen.
  10. Material gemäß einem der Ansprüche 8 bis 9, wobei der Polyester ein Polyethylenterephthalat ist.
  11. Material gemäß einem der Ansprüche 8 bis 10, wobei das Polyolefin ein Polyethylen, vorzugsweise ein recyceltes Polyethylen, ist.
  12. Material gemäß einem der Ansprüche 8 bis 11, wobei der Verträglichmacher ein mit Maleinsäureanhydrid gepfropftes Polyolefinpolymer, ein mit Maleinsäureanhydrid gepfropftes Polyolefin-Copolymer oder ein Gemisch davon ist.
  13. Material gemäß einem der Ansprüche 8 bis 11, wobei der Verträglichmacher ein Ethylen-Methylacrylat-Copolymer, ein mit Maleinsäureanhydrid gepfropftes Ethylen-Methylacrylat-Copolymer oder ein Gemisch davon ist.
  14. Faser für eine Faservliesschicht, umfassend 90 bis 98,7 Gew.-% an einem recycelten Polyester, 1 bis 5 Gew.-% an einem Polyolefin und 0,3 bis 5 Gew.-% an einem Verträglichmacher bezogen auf das Gesamtgewicht des recycelten Polyesters, des Polyolefins und des Verträglichmachers.
  15. Faser gemäß Anspruch 14, wobei die Faser eine mittlere Festigkeit von wenigstens 2,4 cN/dtex, bestimmt gemäß ISO 5079:2020, aufweist.
EP23153143.5A 2023-01-24 2023-01-24 Material mit einer vliesschicht aus fasern Active EP4407084B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
PT231531435T PT4407084T (pt) 2023-01-24 2023-01-24 Material composto por uma camada de não tecido de fibras
EP23153143.5A EP4407084B1 (de) 2023-01-24 2023-01-24 Material mit einer vliesschicht aus fasern
DK23153143.5T DK4407084T3 (da) 2023-01-24 2023-01-24 Materiale, som omfatter et nonwoven lag af fibre
FIEP23153143.5T FI4407084T3 (fi) 2023-01-24 2023-01-24 Materiaali, joka käsittää kuitukangaskerroksen
ES23153143T ES3021239T3 (en) 2023-01-24 2023-01-24 Material comprising a nonwoven layer of fibers
PL23153143.5T PL4407084T3 (pl) 2023-01-24 2023-01-24 Materiał zawierający włókninową warstwę włókien
CA3226226A CA3226226A1 (en) 2023-01-24 2024-01-16 MATERIAL COMPRISING A NON-WOVEN LAYER OF FIBERS
CN202410091339.0A CN118390244A (zh) 2023-01-24 2024-01-23 包含纤维的非织造层的材料
US18/419,585 US20240247416A1 (en) 2023-01-24 2024-01-23 Material comprising a nonwoven layer of fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23153143.5A EP4407084B1 (de) 2023-01-24 2023-01-24 Material mit einer vliesschicht aus fasern

Publications (2)

Publication Number Publication Date
EP4407084A1 EP4407084A1 (de) 2024-07-31
EP4407084B1 true EP4407084B1 (de) 2025-01-22

Family

ID=85076298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23153143.5A Active EP4407084B1 (de) 2023-01-24 2023-01-24 Material mit einer vliesschicht aus fasern

Country Status (9)

Country Link
US (1) US20240247416A1 (de)
EP (1) EP4407084B1 (de)
CN (1) CN118390244A (de)
CA (1) CA3226226A1 (de)
DK (1) DK4407084T3 (de)
ES (1) ES3021239T3 (de)
FI (1) FI4407084T3 (de)
PL (1) PL4407084T3 (de)
PT (1) PT4407084T (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6309988B1 (en) 1997-12-22 2001-10-30 Kimberly-Clark Worldwide, Inc. Biodisintegratable nonwovens with improved fluid management properties
JP2004075974A (ja) 2001-11-30 2004-03-11 Osaka Gas Co Ltd 樹脂組成物からなる成形品及び材料
US7550535B2 (en) 2005-11-03 2009-06-23 Bridgestone Sports Co., Ltd. Golf ball and method of manufacture
EP2455523A1 (de) 2010-11-22 2012-05-23 POLITEX s.a.s. di FREUDENBERG POLITEX s.r.l. Chemisch und thermisch gebundener textiler Träger, insbesondere für bitumenhaltige Membrane
US20130210308A1 (en) 2012-02-10 2013-08-15 Kimberly-Clark Worldwide, Inc. Renewable Polyester Fibers having a Low Density
US9539357B2 (en) 2013-11-01 2017-01-10 The Procter & Gamble Company Nonwoven web material including fibers formed of recycled polyester, and methods for producing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7008888B2 (en) * 2003-07-24 2006-03-07 E. I. Du Pont De Nemours And Company Multiple component spunbond web
EP3019558A1 (de) * 2013-07-11 2016-05-18 Interface, Inc. Biobasierte polymermischungen und verfahren zur herstellung von fasern

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6309988B1 (en) 1997-12-22 2001-10-30 Kimberly-Clark Worldwide, Inc. Biodisintegratable nonwovens with improved fluid management properties
JP2004075974A (ja) 2001-11-30 2004-03-11 Osaka Gas Co Ltd 樹脂組成物からなる成形品及び材料
US7550535B2 (en) 2005-11-03 2009-06-23 Bridgestone Sports Co., Ltd. Golf ball and method of manufacture
EP2455523A1 (de) 2010-11-22 2012-05-23 POLITEX s.a.s. di FREUDENBERG POLITEX s.r.l. Chemisch und thermisch gebundener textiler Träger, insbesondere für bitumenhaltige Membrane
US20130210308A1 (en) 2012-02-10 2013-08-15 Kimberly-Clark Worldwide, Inc. Renewable Polyester Fibers having a Low Density
US9539357B2 (en) 2013-11-01 2017-01-10 The Procter & Gamble Company Nonwoven web material including fibers formed of recycled polyester, and methods for producing

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
"DOCTORAL THESIS", 1 January 1993, LOUGHBOROUGH UNIVERSITY OF TECHNOLOGY, article BELLAHDEB B-: "Compatibilisation of poly(ethylene terephthalate) and polyolefins with mixtures of phenoxy and acid functionalised ethylene copolymer ", pages: 1 - 182, XP093329039
BACCOUCH Z.; MBAREK S.; JAZIRI M.: "Experimental investigation of the effects of a compatibilizing agent on the properties of a recycled poly(ethylene terephthalate)/polypropylene blend", POLYMER BULLETIN, SPRINGER, HEIDELBERG., DE, vol. 74, no. 3, 5 July 2016 (2016-07-05), DE , pages 839 - 856, XP036155647, ISSN: 0170-0839, DOI: 10.1007/s00289-016-1748-6
CORNELIA VASILE: "HANDBOOK OF POLYOLEFINS", 1 January 2000, MARCEL DEKKER, INC.,, ISBN: 0-8247-8603-3, article CORNELIA VASILE: "Polyolefin Polyblends", pages: 613 - 633, XP009563750
DAGLI S. S., KAMDAT K. M.: "EFFECTS OF COMPONENT ADDITION PROTOCOL ON THE REACTIVE COMPATILIZATION OF HDPE/PET BLENDS.", POLYMER ENGINEERING AND SCIENCE, BROOKFIELD CENTER., US, vol. 34., no. 23., 15 December 1994 (1994-12-15), US , pages 1709 - 1719., XP000508401, ISSN: 0032-3888, DOI: 10.1002/pen.760342302
INOYA HIROYUKI, WEI LEONG YEW, KLINKLAI WARUNEE, TAKAI YOSHIHIRO, HAMADA HIROYUKI: "Compatibilization of recycled poly(ethylene terephthalate) and polypropylene blends: Effect of compatibilization on blend toughness, dispersion of minor phase, and thermal stability", JOURNAL OF APPLIED POLYMER SCIENCE, WILEY SUBSCRIPTION SERVICES, INC., A WILEY COMPANY, NEW YORK, vol. 124, no. 6, 15 June 2012 (2012-06-15), New York, pages 5260 - 5269, XP093329055, ISSN: 0021-8995, DOI: 10.1002/app.34385
VAN VELZEN THODEN, BROUWER M T; MOLENVELD K.: "Technical quality of rPET", RAPPORT, WAGENINGEN UR FOOD & BIOBASED RESEARCH, 1 July 2016 (2016-07-01), pages 1 - 147, XP093329071, Retrieved from the Internet <URL:https://kidv.nl/media/engelse_rapporten/technical-quality-of-rpet-wur.pdf?1.2.23>

Also Published As

Publication number Publication date
EP4407084A1 (de) 2024-07-31
CN118390244A (zh) 2024-07-26
CA3226226A1 (en) 2025-05-12
FI4407084T3 (fi) 2025-04-25
PL4407084T3 (pl) 2025-06-09
DK4407084T3 (da) 2025-04-14
ES3021239T3 (en) 2025-05-26
PT4407084T (pt) 2025-04-14
US20240247416A1 (en) 2024-07-25

Similar Documents

Publication Publication Date Title
EP0192897B1 (de) Mischung aus Polyäthylen und Polypropylen
US10087555B2 (en) Polymer fiber and nonwoven
Midha et al. Spun bonding technology and fabric properties: a review
KR100722351B1 (ko) 멜트블로운 섬유의 형성 방법 및 그로부터 제조된 부직물
KR102398706B1 (ko) 비닐 바닥 깔개용 캐리어 재료
EP1549790A2 (de) NICHT DURCH WEBEN HERGESTELLTE TEXTILE FLûCHENGEBILDE F R GEWERBLICHE ZWECKE MIT VERBESSERTEN BARRIEREEIGENSCHAFTEN
US12188162B2 (en) Spunbonded nonwoven and tile carpet using the same
RU2429318C2 (ru) Высокопрочная легкая прошивная основа для тафтинга и способ ее получения
EP4407084B1 (de) Material mit einer vliesschicht aus fasern
US10112365B2 (en) Method for providing a carrier material
EP4433636B1 (de) Vliesstoffe mit recyceltem polyester
JP4582886B2 (ja) 耐候性長繊維不織布
EP3009553A1 (de) Primäre Teppichrückseite und Tuft-Teppich-Rückseite
EP4399361B1 (de) Material für eine primäre teppichunterlage
KR101167758B1 (ko) 고강도 경량 터프트 배킹 및 그의 제조 방법
JPS61289164A (ja) 紡糸フリ−スの製法
TW201525253A (zh) 提供載體材料之方法
JPH1060760A (ja) 熱可塑性フッ素系樹脂繊維布及び短繊維

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

17P Request for examination filed

Effective date: 20240716

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: D06N 5/00 20060101ALN20240814BHEP

Ipc: D01F 6/92 20060101ALI20240814BHEP

Ipc: D01F 1/10 20060101ALI20240814BHEP

Ipc: D04H 3/011 20120101ALI20240814BHEP

Ipc: D04H 3/007 20120101ALI20240814BHEP

Ipc: D04H 1/435 20120101ALI20240814BHEP

Ipc: D04H 1/4291 20120101ALI20240814BHEP

Ipc: D04H 1/4274 20120101AFI20240814BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240920

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

P01 Opt-out of the competence of the unified patent court (upc) registered

Free format text: CASE NUMBER: APP_60937/2024

Effective date: 20241113

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602023001707

Country of ref document: DE

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

Ref country code: LU

Payment date: 20250127

Year of fee payment: 3

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

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

Ref country code: DE

Payment date: 20250129

Year of fee payment: 3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20250408

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 4407084

Country of ref document: PT

Date of ref document: 20250414

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20250407

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

Ref country code: FI

Payment date: 20250127

Year of fee payment: 3

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

Ref country code: ES

Payment date: 20250210

Year of fee payment: 3

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

Ref country code: IE

Payment date: 20250128

Year of fee payment: 3

Ref country code: SE

Payment date: 20250127

Year of fee payment: 3

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

Ref country code: AT

Payment date: 20250417

Year of fee payment: 3

Ref country code: BE

Payment date: 20250127

Year of fee payment: 3

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

Ref country code: FR

Payment date: 20250127

Year of fee payment: 3

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 3021239

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20250526

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

Ref country code: RS

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: 20250422

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

Ref country code: PL

Payment date: 20250401

Year of fee payment: 3

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

Ref country code: DK

Payment date: 20250410

Year of fee payment: 3

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

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

Ref country code: IS

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: 20250522

Ref country code: NO

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: 20250422

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

Ref country code: IT

Payment date: 20250131

Year of fee payment: 3

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

Ref country code: HR

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: 20250122

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

Ref country code: LV

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: 20250122

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

Ref country code: PT

Payment date: 20250502

Year of fee payment: 3

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

Ref country code: BG

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: 20250122

Ref country code: GR

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: 20250423

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

Ref country code: TR

Payment date: 20250424

Year of fee payment: 3

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

Ref country code: SM

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: 20250122

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

Ref country code: MC

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: 20250122

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602023001707

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: EE

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: 20250122

Ref country code: CZ

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: 20250122

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

Ref country code: RO

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: 20250122

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

Ref country code: SK

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: 20250122

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: FITESA GERMANY GMBH

Effective date: 20251015