WO2014122349A1 - Poudre céramique photovoltaïque et à émission infrarouge, applicable sur des fibres textiles, et procédé d'obtention de ladite poudre - Google Patents

Poudre céramique photovoltaïque et à émission infrarouge, applicable sur des fibres textiles, et procédé d'obtention de ladite poudre Download PDF

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Publication number
WO2014122349A1
WO2014122349A1 PCT/ES2014/070082 ES2014070082W WO2014122349A1 WO 2014122349 A1 WO2014122349 A1 WO 2014122349A1 ES 2014070082 W ES2014070082 W ES 2014070082W WO 2014122349 A1 WO2014122349 A1 WO 2014122349A1
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WO
WIPO (PCT)
Prior art keywords
powder
photocatalytic
ceramic powder
applicable
ceramic
Prior art date
Application number
PCT/ES2014/070082
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English (en)
Spanish (es)
Inventor
Jesús CANDEL FÁBREGAS
Julio José ALVAREZ MARTOS
Francisco GARCIA ROJAS
Original Assignee
APARICIO BORREGO, Carlos
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 APARICIO BORREGO, Carlos filed Critical APARICIO BORREGO, Carlos
Priority to EP14748945.4A priority Critical patent/EP2955254A4/fr
Publication of WO2014122349A1 publication Critical patent/WO2014122349A1/fr

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Classifications

    • 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
    • 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
    • D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
    • 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
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • 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
    • D06M11/77—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 silicon or compounds thereof
    • D06M11/79—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 silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • 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
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08—Processes in which the treating agent is applied in powder or granular form

Definitions

  • the invention refers to a photocatalytic and infrared emission ceramic powder, applicable to textile fibers, and to the process for obtaining said powder.
  • the object of the invention is focused on a composition that, formed by a mixture of alumina, silica, zircon and titanium oxide, forms a micro or nanometric ceramic powder with photocatalytic capacity when excited by light and to emit in the far infrared when heated, being capable of being incorporated in natural or synthetic textile fibers and, therefore, in fabrics to provide them with additional properties, for example bactericides.
  • a second aspect of the invention focuses on the process of obtaining said ceramic powder from the mixture of the elements that compose it and which can be found in varying amounts.
  • JP63274660 filed in 1988, refers to a ceramic mixture designed to improve the efficiency of dryers and heaters.
  • Said powder was constituted by a mixture of mineral oxides such as alumina, silica, titania and zirconia, and was doped with small amounts of platinum and palladium particles of colloidal size. This powder could be consolidated and formed using a classic Calcium Aluminum cement.
  • the patent describes a powdery mixture of alumina and pure titanium, sometimes with other components such as Silicon Carbide, with finely divided metal platinum and / or palladium additives. Said mixture would have, according to said patent, activity in the Infrared. It also claims the synthetic fibers loaded with this powder, and the textiles manufactured with them.
  • compositions for the production of far-infrared irradiation with excellent antistatic properties and fibers and products that contain it It claims a composition with antistatic, bactericidal and radioactive properties in the infrared, which contains in all possible proportions: a) Alumina; b) At least one of the oxides Ti02 and Si02; c) At least one element or compound of the following: platinum, a platinum compound, palladium, a palladium compound, iridium, an iridium compound, rhodium, or a rhodium compound; d) At least one of the following components: metallic silver or a silver compound.
  • manufacture of fibers, fabrics, and packaging material containing such compositions are also the manufacture of fibers, fabrics, and packaging material containing such compositions.
  • the compositions cited are generic (titanium dioxide, alumina, silicon oxides), and are covered by the above patents cited above.
  • titanium oxide Ti02 titanium oxide Ti02
  • UV rays ultraviolet rays
  • air purification properties, self-cleaning properties and antimicrobial properties can be generated spontaneously and simultaneously on the surface of the material that contains it.
  • titanium dioxide is a photocatalytic material that has an electronic structure composed of two bands, the valence band (full of electrons) and the conduction band (without electrons).
  • the energy difference between the conduction band and the Valencia band is the so-called prohibited band, and when a photon with an energy higher than this one, comes into direct contact with this photocatalytic material, an electron (e-) of the Valencia band It moves towards the conduction band, leaving an electronic gap (h +).
  • a portion of the hollow-electron photoexcited pairs diffuses towards the surface of the material Photocatalytic, place where it is retained to participate in chemical reactions with oxygen and water molecules present in the environment.
  • Electronic holes (h +) can react with adsorbed donor molecules such as water to produce hydroxyl radicals (highly reactive).
  • the oxygen present in the air can react with the electrons to form the superoxidant radical anions (02-).
  • the hydroxyl radicals (oxidizers) and the superoxidant radical radicals (reducing agents) generated on the surface of Ti02 have demonstrated a great capacity to degrade different types of microorganisms, almost all types of organic pollutants and other inorganic compounds such as NOx and S02. (Maury, A. and others; Mat. Construction, 60 (298), 33-50. 2010)
  • the rapidity of degradation of the compounds is a function of light absorption, transport of photogenerated charges (e- and h +) to the surface, recombination of e- and h +, reaction of e- and h +, on the photocatalyst surface, mass transfer of reactants and particle characteristics, in relation to both structural and morphological characteristics.
  • Titanium dioxide can crystallize in three types of crystalline structures that are: rutile (tetragonal), anastase (tetragonal) and brookite (orthorhombic). Of these three crystalline forms of Ti02, rutile is the most stable, since anastase and the brookita are transformed into rutile under heating. Brookite has no significant photocatalytic activity when used with visible light. Rutile, meanwhile, has the smallest prohibited band, 3.0 eV (equivalent to 413 nm in wavelength), while anastase has the widest prohibited band, 3.2 eV (388 nm). Both prohibited bands are close to the limit wavelength between the long wavelength of UV light (315-400) and visible light (400-700).
  • the invention relates to a micro or nanometric ceramic powder that exhibits photocatalytic activity when excited by light, and which is composed of a mixture of alumina, silica, zircon and titanium oxide in varying amounts.
  • this ceramic powder has as a secondary property the ability to emit electromagnetic radiation in the far infrared region, when heated.
  • the percentages of the different components are found in proportions that vary between 1 and 80%, the total sum being 100%.
  • the process for obtaining said powder comprises the mixture of ceramic powder that is milled to sizes smaller than 20 microns, in any of the usual industrial or laboratory grinding devices, dry or wet.
  • the powder mixture is incorporated into natural or synthetic textile fibers, either in bulk or in the form of a surface coating, by the usual procedures in the textile industry.
  • the fibers loaded with ceramic powders are woven by hand or on mechanical looms to obtain fabrics, cords, nets, etc.
  • Figure number 1 Shows the representation of a microscopic view of fibers loaded with the ceramic powder of the invention.
  • Figure number 2. Shows a graph of the X-ray Fluorescence Spectrum of a sample of the ceramic powder object of the invention, where its main chemical components are observed.
  • the invention focuses on a ceramic powder that can be used as a load in natural or artificial textile fibers composed of a mixture of two types of minerals: a first type, formed by alumina ( A1203), Silica (Quartz, Si02), and Zircon (Si04Zr), whose main characteristic is its stability and refractoriness, and, according to the cited literature, its ability to emit in the far infrared when these compounds are heated.
  • the other fundamental component is titanium oxide, Ti02, in the form of anatase or rutile, with a strong photocatalytic capacity, as explained in the background of this invention. This photocatalytic activity has bactericidal, anti-pollution and anti-odor effects.
  • the invention also describes the process for preparing the mixture of components and their use in the loading of fibers and fabrics.
  • the ceramic powder components are as follows:
  • Silica, Silicon oxide, and more specifically Si02.- Quartz, alpha-Si02, which is a low temperature polymorph of silica is used. It is one of the most abundant minerals in the earth's crust and is achieved with very high purities, for the glass, ceramics, refractories, etc.
  • Rutile form Hardness: 6.5; Specific weight: g / cc 4.25; Stripe: White; Fracture: Concoid; Crystal system: Tetragonal; Shape: Short prisms, needles, maclas; Special properties: Photocatalytic activity.
  • micro or nanometric ceramic powder is understood as a mixture of the mineral components mentioned in varying proportions, and for obtaining it, said components are subjected to a mixing and subsequent grinding process that guarantee the final fineness of the mixture.
  • the particle size of the final powder should be less than 20 microns, and preferably less than 5 microns, with a significant fraction below the mine. This size is achieved using well-proven grinding systems in the industry, primarily jet mills or attrition mills. In any case, the effectiveness of the powder will be greater the greater its specific surface area and therefore, the smaller its particle size.
  • the present invention it is understood as loading of the textile fibers to the process by which the ceramic powder is added or incorporated into the mass or surface of the fibers, which can be carried out by two different processes: a) mass incorporation from the powder to the polymer during the spinning process, by mixing the appropriate amounts thereof to the polymer pellet; or b) coating the surface of the fibers by the mineral powder, working hot or by means of a suitable solvent, that is, by means of a process of sizing designed for this purpose.
  • the percentage of ceramic powder added to the fiber must be sufficient for its effect to be noticeable, that is, the concentration of active elements must be sufficient for infrared emission to occur, and the photocatalytic effect sought, but this concentration should not be so high that the lightness and flexibility properties of the fibers are modified, and their ability to be woven.
  • the percentage of ceramic powder added to the fiber must be between 0.5 and 5% by weight, except for special applications, in which the percentage may be higher.
  • Example 1 This example refers to the preparation of ceramic powder, starting from the raw materials in the market, and using the standard tools of a ceramic processing laboratory.
  • the procedure object of the example is the following one:
  • micronized alumina powder (purity> 98%) are weighed, and passed to a container of inert material, such as porcelain, glass, stainless steel, etc.
  • the powder is renewed with a spatula, and 250 milliliters of ethyl alcohol or methyl alcohol are added. It is removed until a plastic mass is formed, which is passed to an attrition mill, adding 150 milliliters of distilled water. The set is milled in the presence of 30% stabilized zirconia balls 2mm in diameter.
  • the zirconia balls are separated by sieving, and the ceramic powder suspension is dried at a temperature below 50 ° C.
  • this e refers to the preparation of ceramic powder, starting from the raw materials in the market, and using the standard tools of a ceramic processing laboratory.
  • the procedure object of example 2 is the following: - 200 grams of commercial kaolinite, of formula A1203.2 Si02.2H20 are weighed and passed to a container of inert material, such as porcelain, glass, stainless steel, etc. - Next, 100 grams of zircon, commercial purity, are weighed and added to the kaolinite powder.
  • the powder is renewed with a spatula, and 300 milliliters of ethyl alcohol or methyl alcohol are added. It is removed until a plastic mass is formed, which is passed to an attrition mill, adding 200 milliliters of distilled water. The set is milled in the presence of 30% stabilized zirconia balls 2mm in diameter.
  • the zirconia balls are separated by sieving, and the ceramic powder suspension is dried at a temperature below 50 ° C.
  • dry powder is sieved by a sieve of 75 microns of mesh light, and packaged for use.
  • the powder mixture is intended to be incorporated into natural or synthetic textile fibers, either in bulk or in the form of a surface coating, by the usual procedures in the textile industry.
  • Figure 1 the representation of a micrograph of a synthetic polymeric yarn loaded with the ceramic powder of the invention can be observed, where the fibers (1) can be observed, which have diameters of 10.22 ⁇ 1.36 microns and which have a fairly smooth surface, as well as the charge particles (2) of the ceramic powder at some points of its surface.
  • Figure 2 shows a graph of the X-ray Fluorescence Spectrum of a sample of the ceramic powder object of the invention, where its main chemical components Oxygen, Silicon, Aluminum, Zirconium and Titanium are observed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Catalysts (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

L'invention concerne une poudre céramique photovoltaïque et à émission infrarouge, applicable sur des fibres textiles, ainsi qu'un procédé d'obtention de ladite poudre constituée d'un mélange micro ou nanométrique de quantités variables d'alumine, de silice, de zircon et d'oxyde de titane, dans des proportions allant de 1 à 80%, et présentant une taille de particule inférieure à 20 microns, de préférence inférieure à 5 microns. Le procédé d'obtention comprend des systèmes de broyage à sec ou humide, avec des moulins à jet ou des moulins à attrition.
PCT/ES2014/070082 2013-02-06 2014-02-04 Poudre céramique photovoltaïque et à émission infrarouge, applicable sur des fibres textiles, et procédé d'obtention de ladite poudre WO2014122349A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14748945.4A EP2955254A4 (fr) 2013-02-06 2014-02-04 Poudre céramique photovoltaïque et à émission infrarouge, applicable sur des fibres textiles, et procédé d'obtention de ladite poudre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201330138A ES2492215B1 (es) 2013-02-06 2013-02-06 Polvo cerámico fotocatalítico y de emisión infrarroja, aplicable a fibras textiles y procedimiento de obtención de dicho polvo
ESP201330138 2013-02-06

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WO2014122349A1 true WO2014122349A1 (fr) 2014-08-14

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EP (1) EP2955254A4 (fr)
ES (1) ES2492215B1 (fr)
WO (1) WO2014122349A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200101452A1 (en) * 2014-09-24 2020-04-02 Kai-Li HUANG Environment-controlling fibers and fabrics using the same
ES2773604A1 (es) * 2019-01-11 2020-07-13 Bionox Group Spain S L Material textil con microparticulas bioceramicas que emite en el infrarrojo lejano en cuatro longitudes de onda concretas simultaneamente

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63274660A (ja) 1987-05-06 1988-11-11 Hideo Ota 遠赤外線放射セラミックス
US4999243A (en) * 1986-12-15 1991-03-12 Nobushige Maeda Far infra-red radiant composite fiber
EP0462275B1 (fr) 1989-12-20 1995-08-23 KOMURO, Toshio Poudre diffusant des rayons infrarouges de faible energie, fibre synthetique contenant cette poudre et articles textiles produits a partir de ladite fibre
DE19606266A1 (de) * 1995-07-14 1997-01-16 Cheil Synthetics Inc Verfahren zur Herstellung von im Fernen Infrarot abstrahlenden Polyesterfasern
EP1291405A1 (fr) * 2000-05-19 2003-03-12 Toshio Komuro Composition pour rayonnement infrarouge lointain presentant une excellente propriete antistatique et fibre et produit textile la contenant
ES2341765T3 (es) 2002-03-22 2010-06-28 Holofiber, Llc Procedimiento para mejorar el rendimiento muscular.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2585167B2 (ja) * 1992-07-16 1997-02-26 スワニー株式会社 金属を含有した繊維からなる肌着
US6383980B1 (en) * 1999-09-08 2002-05-07 Showa Denko Kabushiki Kaisha Photocatalytic titanium dioxide powder, process for producing same, and applications thereof
DE102006053326A1 (de) * 2006-11-10 2008-05-15 Bühler PARTEC GmbH Ausrüstung von Substraten

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4999243A (en) * 1986-12-15 1991-03-12 Nobushige Maeda Far infra-red radiant composite fiber
JPS63274660A (ja) 1987-05-06 1988-11-11 Hideo Ota 遠赤外線放射セラミックス
EP0462275B1 (fr) 1989-12-20 1995-08-23 KOMURO, Toshio Poudre diffusant des rayons infrarouges de faible energie, fibre synthetique contenant cette poudre et articles textiles produits a partir de ladite fibre
DE19606266A1 (de) * 1995-07-14 1997-01-16 Cheil Synthetics Inc Verfahren zur Herstellung von im Fernen Infrarot abstrahlenden Polyesterfasern
EP1291405A1 (fr) * 2000-05-19 2003-03-12 Toshio Komuro Composition pour rayonnement infrarouge lointain presentant une excellente propriete antistatique et fibre et produit textile la contenant
EP1291405B1 (fr) 2000-05-19 2006-03-01 Toshio Komuro Composition pour rayonnement infrarouge lointain presentant une excellente propriete antistatique et fibre et produit textile la contenant
ES2341765T3 (es) 2002-03-22 2010-06-28 Holofiber, Llc Procedimiento para mejorar el rendimiento muscular.

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MAURY, A. ET AL., MAT. CONSTRUCCION, vol. 60, no. 298, 2010, pages 33 - 50
MILANI, R. ET AL., SASBE 3RD INTERNATIONAL CONFERENCE PROCEEDINGS, 2009
PARTHASARATHI, V. ET AL.: "Synthesis and Characterization of Titanium Dioxide Nanoparticles and their applications to textiles for microbe resistance''.", JOURNAL OF TEXTILE AND APPAREL, TECHNOLOGY AND MANAGEMENT., vol. 6, no. 2, 1 January 2009 (2009-01-01), pages 1 - 8, XP055269367 *
See also references of EP2955254A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200101452A1 (en) * 2014-09-24 2020-04-02 Kai-Li HUANG Environment-controlling fibers and fabrics using the same
ES2773604A1 (es) * 2019-01-11 2020-07-13 Bionox Group Spain S L Material textil con microparticulas bioceramicas que emite en el infrarrojo lejano en cuatro longitudes de onda concretas simultaneamente
WO2020144388A1 (fr) * 2019-01-11 2020-07-16 Bionox Group Spain, S.L. Matière textile contenant des microparticules biocéramiques qui émet dans l'infrarouge lointain sur quatre longueurs d'onde concrètes simultanément

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Publication number Publication date
ES2492215A1 (es) 2014-09-08
EP2955254A1 (fr) 2015-12-16
ES2492215B1 (es) 2015-06-29
EP2955254A4 (fr) 2016-09-07

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