EP4529577A1 - Procédé de production d'un matériau textile à haute résistance dans lequel une contrainte de matière première est éliminée, et ce matériau - Google Patents

Procédé de production d'un matériau textile à haute résistance dans lequel une contrainte de matière première est éliminée, et ce matériau

Info

Publication number
EP4529577A1
EP4529577A1 EP23820215.4A EP23820215A EP4529577A1 EP 4529577 A1 EP4529577 A1 EP 4529577A1 EP 23820215 A EP23820215 A EP 23820215A EP 4529577 A1 EP4529577 A1 EP 4529577A1
Authority
EP
European Patent Office
Prior art keywords
textile material
polyacrylate
production method
strength
material according
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.)
Pending
Application number
EP23820215.4A
Other languages
German (de)
English (en)
Other versions
EP4529577A4 (fr
Inventor
Veli Gökçil
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from PCT/TR2023/050532 external-priority patent/WO2023239331A1/fr
Publication of EP4529577A1 publication Critical patent/EP4529577A1/fr
Publication of EP4529577A4 publication Critical patent/EP4529577A4/fr
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/137—Acetals, e.g. formals, or ketals
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/325—Amines
    • D06M13/338—Organic hydrazines; Hydrazinium compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
    • D06M2101/28—Acrylonitrile; Methacrylonitrile

Definitions

  • the present invention relates to a high-strength polyacrylate textile material in the field of textiles and a method for its production.
  • the invention relates to a high-strength polyacrylate textile material and the production method for the said material, which includes the process of eliminating the stress in the raw material (polyacrylonitrile-based textile material) before the crosslinking, hydrolysis, acid and salt processes without allowing the material to physically shrink, so that the amount of shrinkage in crosslinking, hydrolysis, acid and salt processes decreases spontaneously.
  • polyacrylonitrile fibers are usually first converted into polyacrylate fibers. Then, polyacrylate textile materials (various yarns and fabrics) are produced by applying known textile production methods to the obtained polyacrylate fibers.
  • the said polyacrylonitrile (acrylic) fiber refers to textile fibers containing at least 35% acrylonitrile in its structure.
  • polyacrylonitrile-based textile materials e.g. fibers, yarns, fabrics, etc.
  • their semi-finished products or wastes are suitable for polyacrylating.
  • the material shows a radical shrinkage during the polyacrylating process when the polyacrylonitrile yarn or fabric is converted into polyacrylate, form of the material is severely deformed and the resulting product is not particularly pleasing in terms of appearance and feel (tactile properties).
  • Obtaining polyacrylate textile materials in the known technique is usually done by applying the following four process steps: subjecting the polyacrylonitrile-based textile material to cosslinking process; hydrolysis of the said crosslinked polyacrylonitrilebased textile material to obtain the polyacrylate textile material; acid treatment of the obtained polyacrylate textile material; treatment of the said acid-treated polyacrylate textile material with metal salts.
  • Polyacrylating takes place mainly in the second step (hydrolysis step) and crosslinking in the first step is necessary for the material to retain its fiber form without dissolving in the second step.
  • the third and fourth steps are preferably used to differentiate product properties.
  • Polyacrylate fibers and textile materials derived from them have superior performance properties, which are listed below.
  • the strength of polyacrylonitrile fibers used as raw material (precursor fiber) in the polyacrylating process is generally in the range of 25-45 cN/tex, depending on the production conditions of the fiber, and this strength level is sufficient for yarn and fabric production.
  • these polyacrylonitrile fibers are converted into polyacrylate fibers by the method in the known art, their strength decreases to the range of 10-16 cN/tex.
  • the root cause of the low strength of polyacrylate fibers is the disorientation of the polymer chains due to the radical shrinkage of polyacrylonitrile fibers during polyacrylating processes and the inability of the polymer chains to form bonds between each other with sufficient efficiency in terms of quantity and quality. Therefore, nanoadditives do not eliminate the root cause of the problem. However, it is considered that nano-additives may provide some benefit to the product, which loses its strength at a radical level due to their nature.
  • Another method that can be applied to strengthen the polyacrylate fibers is to physically limit the shrinkage (shortening) of the material during the mentioned chemical processes.
  • the shrinkage of the material is limited by applying a force to the material during the chemical processes, so that the orientation of the polymer chains is largely maintained and an increase in strength can be achieved.
  • a system can be used in which the beginning and end of the tow are pinched or tied and supported by wrapping them in turns around two opposite metal cylinders (rollers) with a certain distance between them.
  • the distance between the support points (rollers) is more than 2-3 meters, it becomes difficult to control the tow during the process. For this reason, even if the tow is held only at the beginning and end, support points are needed at intervals of 2-3 meters to keep the tow under control.
  • the standard low strength polyacrylate fiber is produced by placing the polyacrylonitrile fiber tow in the form of a pressed cake (the form obtained by wetting and pressing the appropriate amount of tow, usually 300 kg to 1000 kg, into the basket of a standard dyeing vessel) into a standard fiber dyeing vessel and treating the cakes with appropriate chemicals in this dyeing vessel for sufficient time and temperature. It is obvious that adding a holding or support point every 2-3 meters to an industrially highly efficient and simple system where thousands of meters of tow can be processed at once in cake form will complicate the process. In addition, the dead volume caused by the holding or support points reduces the amount of tow that can be filled into the vessel, thus reducing the production amount and making the process inefficient.
  • Another disadvantage of this method where shrinkage is limited is that, apart from the cross-links formed in the first step, the other bonds that hold the polymer chains together and provide fiber strength are broken in the second step due to the nature of the second step.
  • the first step of crosslinking is a prerequisite to prevent dissolution in the second step (hydrolysis step), where polyacrylating occurs, to maintain the fiber form of the material and to provide some strength to the material.
  • the shrinkage of the material it is necessary to perform much more crosslinking in the first step in order to avoid rupture in the second step.
  • the method of producing high strength polyacrylate textile material developed by the present invention comprises the steps of: subjecting the polyacrylonitrile-based textile material used as raw material to a crosslinking process; hydrolyzing the said crosslinked polyacrylonitrile-based textile material to obtain the polyacrylate textile material; subjecting the obtained polyacrylate textile material to acid treatment ; treating the said acid-treated polyacrylate textile material with metal salts.
  • the shrinkage of the polyacrylonitrile-based textile material fed as raw material to the mentioned processes is reduced without physically allowing the material to shrink before the mentioned processes, and thus the shrinkage of the material during the mentioned processes decreases spontaneously without physically limiting the shrinkage of the material.
  • the polyacrylonitrile-based textile material e.g. acrylic fibers in tow form
  • a pressurized vessel autoclave
  • shrinkage e.g. the form in which the head and end are fixed and the tow is wound layer by layer on a roller in the form of a bobbin, which will not be deformed by the shrinkage force. Since the polyacrylonitrile-based textile material is very strong at this stage, the tension caused by not allowing shrinkage does not cause rupture.
  • the fact that the process is carried out in the form of a coil in which the tow is wound layer by layer on a roller does not pose any problem due to the very good ability of the saturated steam in a pressurized vessel to penetrate into the material.
  • the fact that the autoclave to be used for the process is a type B autoclave makes it even easier for the steam to penetrate into the material.
  • type B autoclaves the air in the autoclave and the material is purged by vacuuming before the steam is introduced into the autoclave for better penetration of the steam into the material. Then, steam is introduced into the autoclave to allow the steam to penetrate into the material better.
  • the polyacrylonitrile tow is subjected to autoclave by filling it freely into perforated boxes without any obstruction.
  • the material shrinks by approximately 30%, the polymer chain orientation is disrupted, the strength of the material decreases, but the elongation feature and dye uptake speed increase and shrinkage in subsequent hot-wet textile processes (since the stress in the material is eliminated) is prevented.
  • the polyacrylonitrilebased textile material is treated with saturated steam in a pressurized container (autoclave) in a form where shrinkage is not possible.
  • autoclave a pressurized container
  • the stress that causes shrinkage of the material in polyacrylating processes is eliminated by maintaining the polymer chain orientation.
  • the amount of shrinkage of the material in the said polyacrylating processes decreases spontaneously (without physically limiting the shrinkage) and the strength of the obtained polyacrylate textile material is increased significantly.
  • the invention is inspired by the existingsituation and aims to solve the above-mentioned problems.
  • the objective of the invention is to develop a polyacrylate textile material production method that reduces the shrinkage tendency and shrinkage of the material by eliminating the stress in the material.
  • An objective of the invention is to develop a method of producing polyacrylate textile materials in which the shrinkage of the material in polyacrylating processes is not physically limited by a force
  • the subject matter of the invention is a method of producing a high-strength polyacrylate textile material comprising the steps of preparing polyacrylonitrile textile material as raw material; subjecting said polyacrylonitrile-based textile material to a crosslinking process; hydrolyzing said crosslinked polyacrylonitrile-based textile material to obtain polyacrylate textile material; treating the obtained polyacrylate textile material with acid; treating said acid-treated polyacrylate textile material with metal salts, wherein the said method comprises the process step of, for the amount of shrinkage in the said crosslinking and hydrolyzing processes to decrease spontaneously without being physically limited, eliminating the stress in the raw material (polyacrylonitrile-based textile material) before the said processes without allowing the material to physically shrink.
  • Production method for high-strength polyacrylate textile material which is the subject of the invention, comprises the reduction of the shrinkage tendency by eliminating the stress in the raw material before the processing step i) or the processing step ii) or both processing steps
  • Production method for high-strength polyacrylate textile material which is the subject of the invention, comprises the process step (iii) wherein the polyacrylate textile material obtained after the processing step ii) is subjected to acid treatment.
  • Production method for high-strength polyacrylate textile material which is the subject of the invention, comprises process step (iv) for the treatment of the said acid-treated polyacrylate textile material with metal salts.
  • the invention is a high-strength polyacrylate fiber obtained by the production method of a high-strength polyacrylate textile material.
  • the invention is a high-strength polyacrylate yarn obtained by the production method of a high-strength polyacrylate textile material.
  • the invention is a high-strength polyacrylate fabric obtained by the production method of a high-strength polyacrylate textile material.
  • Artificial textile fibers are basically produced by two different fiber extrusion methods: fiber extrusion from melt and fiber extrusion from solution.
  • the polymer used as raw material is converted into a fluid structure with a viscosity suitable for fiber extrusion.
  • the polymer used for this purpose is either melted or dissolved in a suitable solvent.
  • the viscous polymer, which becomes suitable for fiber extrusion is passed through perforated spinnerets and thus produced as endless filaments. Fiber is obtained by re-solidifying the filaments coming out of the spinnerets. In the melt fiber extrusion method, solidification is achieved by cooling.
  • solidification is achieved by volatilizing the solvent with an inert gas (dry fiber extrusion) or by washing with a nonsolvent (e.g. water) and replacing the solvent with the nonsolvent (wet fiber extrusion).
  • dry fiber extrusion dry fiber extrusion
  • nonsolvent e.g. water
  • Polyacrylonitrile (acrylic) fiber which is an example of a polyacrylonitrile-based textile material, is obtained by wet or dry fiber extrusion methods.
  • polyacrylonitrile polymer which is generally used as a copolymer, is made into a solution with a suitable solvent (specifically preferably DMF, DMAc or DMSO) and this polymer solution is passed through perforated spinnerets and produced as endless filaments.
  • the solvent in the fiber is replaced with water by washing with water and then the water in the fiber is removed using a drying system.
  • the solvent in the fiber can be volatilized with inert gas, allowing the fiber to pass into the solid phase.
  • the fibers are stretched (drawing process).
  • the polymer chains become oriented (parallel) at a certain level. In this way, the polymer chains can approach each other and form bonds between them called secondary attraction forces. These bonds are one of the most important factors determining fiber strength. As the orientation increases, more and stronger bonds are formed, which increase fiber strength.
  • Polyacrylate fibers which are examples of polyacrylate textile materials, can be obtained by chemical modification of polyacrylonitrile fibers. Basically, polyacrylonitrile fibers can be converted into polyacrylate fibers by subjecting them to four different reactions (process steps). However, due to the radical shrinkage of polyacrylonitrile fibers during the mentioned processes, the orientation of the polymer chains is disrupted and accordingly, the polymer chains cannot form bonds between each other with sufficient efficiency in terms of quantity and quality, leading to loss of strength. The obtained polyacrylate fibers are not suitable for use in textile processes and textile products due to their low strength. Accordingly, with the present invention, a high- strength polyacrylate textile material and a method of producing this polyacrylate textile material are developed.
  • the method of producing a high-strength polyacrylate textile material developed by the present invention comprises the steps of; crosslinking of the polyacrylonitrile-based textile material used as raw material; hydrolyzing said crosslinked polyacrylonitrilebased textile material to obtain polyacrylate textile material; treating the obtained polyacrylate textile material with acid; treating said acid-treated polyacrylate textile material with metal salts.
  • the shrinkage of the polyacrylonitrile-based textile material fed as raw material to the mentioned processes is reduced without physically allowing the material to shrink before the mentioned processes, and thus the shrinkage of the material during the mentioned processes decreases spontaneously without physically limiting the shrinkage of the material.
  • the shrinkage tendency of the polyacrylonitrile-based textile material fed as raw material to the said processes is reduced before the crosslinking step, and thus the shrinkage of the material is automatically reduced during the aforementioned processes.
  • the shrinkage tendency of the polyacrylonitrile-based textile material fed as raw material to the said processes is reduced before the hydrolysis step, and thus the shrinkage of the material is automatically reduced during the aforementioned processes.
  • the shrinkage tendency of the polyacrylonitrile-based textile material fed as raw material to the said processes is reduced before both the crosslinking and the hydrolysis steps, and thus the shrinkage of the material is automatically reduced during the aforementioned processes.
  • shrinkage tendency is reduced by eliminating the stress in the raw material, preferably by treating the material with a substance to aid heat transfer, preferably at a temperature above 80 ⁇ 0 without allowing the material to physically shrink.
  • the said substance is solid (hot metal roll surfaces), liquid (hot water or other hot liquids suitable for the purpose) or gas (water vapor, hot air or other gases suitable for the purpose).
  • the process of eliminating the stress in the raw material is carried out under atmospheric conditions, under pressure, under vacuum or under conditions consisting of a combination thereof.
  • the polyacrylonitrile-based textile material e.g. acrylic fibers in tow form
  • a pressurized vessel autoclave
  • shrinkage e.g. the form in which the beginning and end are fixed and the tow is wound layer by layer on a roller in the form of a bobbin, which will not be deformed by the shrinkage force. Since the polyacrylonitrile-based textile material is very strong at this stage, the tension caused by not allowing shrinkage does not cause rupture.
  • the fact that the process is carried out in the form of a coil in which the tow is wound layer by layer on a roller does not pose any problem due to the very good ability of the saturated steam in a pressurized vessel to penetrate into the material.
  • the fact that the autoclave to be used for the process is a type B autoclave makes it even easier for the steam to penetrate into the material.
  • type B autoclaves the air in the autoclave and the material is purged by vacuuming before the steam is introduced into the autoclave for better penetration of the steam into the material. Then, steam is introduced into the autoclave to allow the steam to penetrate into the material better.
  • the polyacrylonitrile tow is subjected to autoclave by filling it freely into perforated boxes without any obstruction.
  • the material shrinks by approximately 30%, the polymer chain orientation is disrupted, the strength of the material decreases, but the elongation feature and dye uptake speed increase and shrinkage in subsequent hot-wet textile processes (since the stress in the material is eliminated) is prevented.
  • the polyacrylonitrilebased textile material is treated with saturated steam in a pressurized container (autoclave) in a form where shrinkage is not possible.
  • autoclave a pressurized container
  • the stress that causes shrinkage of the material in polyacrylating processes is eliminated by maintaining the polymer chain orientation.
  • the amount of shrinkage of the material in the mentioned polyacrylating processes decreases spontaneously (without physically limiting the shrinkage) and the strength of the polyacrylate textile material obtained is increased significantly.
  • PAN1 Normal polyacrylonitrile fiber. Not annealed.
  • PAN2 Polyacrylonitrile fiber obtained by free annealing of PAN1 in a type B autoclave at 2.1 bar at 134 C without preventing its shrinkage.
  • PAN3 Polyacrylonitrile fiber obtained by annealing of PAN1 in a type B autoclave at 2.1 bar at 134 C without allowing its shrinkage.
  • PA1 PAN1 converted into polyacrylate fiber using the following conditions.
  • PA2 PAN2 converted into polyacrylate fiber using the following conditions.
  • PA3 PAN3 converted into polyacrylate fiber using the following conditions.
  • PAN1 polyacrylonitrile fibers were converted into polyacrylate fibers in a fiber dyeing vessel using the following conditions and PA1 fibers were obtained, whose properties are given in the table below.
  • PAN2 polyacrylonitrile fibers were converted into polyacrylate fibers in a fiber dyeing vessel using the following conditions and PA2 fibers were obtained, whose properties are given in the table below.
  • PAN3 polyacrylonitrile fibers were converted into polyacrylate fibers in a fiber dyeing vessel using the following conditions and PA3 fibers were obtained, whose properties are given in the table below.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

La présente invention concerne un matériau textile à base de polyacrylate à haute résistance dans le domaine des textiles, et son procédé de production. L'invention concerne en particulier un matériau textile à base de polyacrylate à haute résistance et le procédé de production dudit matériau, qui comprend le procédé d'élimination de la contrainte dans la matière première (matériau textile à base de polyacrylonitrile) avant les processus de réticulation, d'hydrolyse, d'acide et de sel sans permettre au matériau de se rétracter physiquement, de telle sorte que la quantité de retrait dans des processus de réticulation, d'hydrolyse, d'acide et de sel diminue spontanément.
EP23820215.4A 2022-06-06 2023-06-06 Procédé de production d'un matériau textile à haute résistance dans lequel une contrainte de matière première est éliminée, et ce matériau Pending EP4529577A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR202209313 2022-06-06
PCT/TR2023/050532 WO2023239331A1 (fr) 2022-06-06 2023-06-06 Procédé de production d'un matériau textile à haute résistance dans lequel une contrainte de matière première est éliminée, et ce matériau

Publications (2)

Publication Number Publication Date
EP4529577A1 true EP4529577A1 (fr) 2025-04-02
EP4529577A4 EP4529577A4 (fr) 2025-09-03

Family

ID=94868599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23820215.4A Pending EP4529577A4 (fr) 2022-06-06 2023-06-06 Procédé de production d'un matériau textile à haute résistance dans lequel une contrainte de matière première est éliminée, et ce matériau

Country Status (1)

Country Link
EP (1) EP4529577A4 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866904A1 (fr) * 2004-02-26 2005-09-02 Marti Juan Batlle Procede de fabrication de fibres de polyacrylate reticule

Also Published As

Publication number Publication date
EP4529577A4 (fr) 2025-09-03

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