WO2015112434A9 - Filaments de gazon artificiel, et articles fabriqués à partir de ceux-ci - Google Patents

Filaments de gazon artificiel, et articles fabriqués à partir de ceux-ci Download PDF

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Publication number
WO2015112434A9
WO2015112434A9 PCT/US2015/011681 US2015011681W WO2015112434A9 WO 2015112434 A9 WO2015112434 A9 WO 2015112434A9 US 2015011681 W US2015011681 W US 2015011681W WO 2015112434 A9 WO2015112434 A9 WO 2015112434A9
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WO
WIPO (PCT)
Prior art keywords
artificial turf
filament
primary backing
turf filament
filaments
Prior art date
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PCT/US2015/011681
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English (en)
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WO2015112434A1 (fr
Inventor
Barbara Bonavoglia
Peter HEYDASCH
Larry W. Mobley
Stefan Ultsch
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Dow Global Technologies Llc
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Publication date
Application filed by Dow Global Technologies Llc filed Critical Dow Global Technologies Llc
Priority to EP15702072.8A priority Critical patent/EP3097228B1/fr
Priority to CN201580004732.0A priority patent/CN105917043A/zh
Priority to BR112016016343A priority patent/BR112016016343A2/pt
Priority to ES15702072T priority patent/ES2735077T3/es
Publication of WO2015112434A1 publication Critical patent/WO2015112434A1/fr
Publication of WO2015112434A9 publication Critical patent/WO2015112434A9/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • 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
    • D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/09—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with free halogens or interhalogen 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
    • D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
    • 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
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • 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
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber

Definitions

  • Embodiments of the present disclosure generally relate to artificial turf filaments, articles incorporating artificial turf filaments, and their manufacture.
  • Synthetic or artificial turf fields are increasingly being used as an alternative to natural grass turf for use on sport athletic fields, landscaping, or golf applications.
  • conventional artificial turf fields can have poor attachment of the synthetic grass blades to the base portion of an artificial turf field resulting in easy detachment of the grass blades.
  • further improvements are desired of artificial turf fields to reduce the amount of heat absorbed, as well as, providing improved sports performance characteristics (e.g., faster ball roll).
  • Water may be applied to the artificial turf field to achieve the desired turf performance characteristics, while also controlling heat; however, the water can easily run off the surface of the synthetic grass blades resulting in poor cooling of the yarns and/or failure to provide the desired sports performance characteristics.
  • artificial turf fields have improved over the years to appear more like natural grass, synthetic grass blades still exhibit a smoother, glossy appearance when compared to natural grass, which is not aesthetically pleasing.
  • an artificial turf filament comprising a polyolefin, a polyamide, a polyester, or a combination thereof, wherein the filament has a surface area, with at least a portion of the surface area being halogenated to form a halogenated surface. Also disclosed herein are method of manufacturing such artificial turf filaments, artificial turf fields comprising such filaments, and methods of manufacturing the artificial turf fields.
  • FIG. 1 pictorially depicts a cutaway view of an artificial turf field according to one or more embodiments shown and described herein.
  • FIGS. 2 A & 2B pictorially depict an artificial turf filament according to one or more embodiments shown and described herein as compared to a comparative filament after peel adhesion testing.
  • FIGS. 3A & 3B pictorially depict the behavior of a water drop on the surface of an artificial turf filament according to one or more embodiments shown and described herein as compared to a water drop on the surface of a comparative filament.
  • FIG. 4 graphically depicts a water contact angle comparison of an artificial turf filament according to one or more embodiments shown and described herein and a comparative filament.
  • FIG. 5 graphically depicts a water contact angle comparison after weathering of an artificial turf filament according to one or more embodiments shown and described herein and a comparative filament.
  • FIGS. 6A & 6B pictorially depict scanning electron microscopy images of the surface of an artificial turf filament according to one or more embodiments shown and described herein as compared to the surface of a comparative filament.
  • FIGS. 7A & 7B graphically depict differential scanning calorimetry curves for an artificial turf filament according to one or more embodiments shown and described herein as compared to a comparative filament
  • filament refers to monofilaments, multifilaments, extruded films, fibers, yarns, such as, for example, tape yarns, fibrillated tape yarn, slit-film yarn, continuous ribbon, and/or other stretched fibrous materials used to form synthetic grass blades or strands of an artificial turf field.
  • the artificial turf filaments described herein comprise a polyolefin, a polyamide, a polyester, or a combination thereof.
  • Polyolefins include polymers derived from one or more simple olefin monomers, e.g., ethylene, propylene, 1-butene, 1-hexene, or 1-octene. The olefin monomers can be substituted or unsubstituted, and if substituted, the substituents can vary widely.
  • Exemplary polyolefins can include polyethylene, polypropylene, polybutene, polyisoprene and their various interpolymers.
  • interpolymer refers to polymers prepared by the polymerization of at least two different types of monomers.
  • the term “interpolymer” can include copolymers, which is used to refer to polymers prepared from two different types of monomers, and can also include polymers prepared from more than two different types of monomers.
  • copolymers which is used to refer to polymers prepared from two different types of monomers, and can also include polymers prepared from more than two different types of monomers.
  • Other suitable polyolefins are described in U.S. Pat. No. 7,714,071, U.S. Pub. No. 2012/0129417, U.S. Pub. No. 2013/0023177, WO 2011/041698, which are incorporated herein by reference. It should be understood that blends of polyolefins may also be used herein.
  • the artificial turf filament comprises a polyolefin, the polyolefin comprising polyethylene or polypropylene.
  • the artificial turf filament comprises polyethylene.
  • the polyethylene has, in polymerized form, a majority weight percent of ethylene, based on the total weight of the polyethylene.
  • the polyethylene may be an interpolymer of ethylene and at least one ethylenically unsaturated comonomer, such as, for example, a C3-C20 a-olefin comonomer.
  • the comonomer is a C3-C8 a-olefin.
  • the C3-C8 a-olefin is selected from propylene, 1-butene, 1-hexene, or 1-octene.
  • the polyethylene is selected from ethylene/propylene copolymer, ethylene/butene copolymer, ethylene/hexene copolymer, and ethylene/octene copolymer. In even further embodiments, the polyethylene is an ethylene/octene copolymer.
  • the polyethylene has a density of 0.900 g/cc to 0.965 g/cc. All individual values and subranges of at least 0.900 g/cc to 0.965 g/cc are included and disclosed herein.
  • the polyethylene has a density of 0.910 g/cc to about 0.950 g/cc, 0.910 to 0.940 g/cc, or 0.915 to 0.935 g/cc.
  • the polyethylene has a melt index of 0.5 g/10 min to 10 g/10 min. All individual values and subranges of at least 0.5 g/10 min to 10 g/10 min are included and disclosed herein.
  • the polyethylene has a melt index of 1 g/10 min to 8 g/10 min, 0.5 g/10 min to 5 g/10 min, 1 g/10 min to 5 g/10 min, or 1 g/10 min to 4 g/10 min, as measured in accordance with ASTM D1238 (190°C. and 2.16 kg).
  • the polyethylene can be produced with Ziegler-Natta catalysts, single-site catalysts, such as, vanadium catalysts or metallocene catalysts, or combinations thereof.
  • the polyethylene is produced with a Ziegler-Natta type catalyst.
  • Nonlimiting examples of suitable Ziegler-Natta catalyzed polyethylene include polymers sold under the trade name DOWLEXTM, available from The Dow Chemical Company, Midland, Mich., such as, for example, the DOWLEXTM 2025G resin, the DOWLEXTM SC 2108G resin, the DOWLEXTM 2036G resin, the DOWLEXTM 2045 G resin, the DOWLEXTM SC 2107G resin, the DOWLEXTM 2607G resin, the DOWLEXTM 2055G resin, the DOWLEXTM 2247G resin, or the DOWLEXTM 2047G resin.
  • DOWLEXTM available from The Dow Chemical Company, Midland, Mich.
  • the polyethylene is produced with a single-site catalyst, such as, a metallocene catalyst or a constrained geometry catalyst.
  • a metallocene catalyst is a catalyst composition containing one or more substituted or unsubstituted cyclopentadienyl moiety in combination with a Group 4, 5, or 6 transition metal.
  • suitable metallocene catalysts are disclosed in U.S. Pat. No. 5,324,800, the entire content of which is incorporated herein by reference.
  • a “constrained geometry catalyst” comprises a metal coordination complex comprising a metal of groups 3-10 or the Lanthanide series of the Periodic Table and a delocalized pi-bonded moiety substituted with a constrain-inducing moiety, said complex having a constrained geometry about the metal atom such that the angle at the metal between the centroid of the delocalized, substituted pi-bonded moiety and the center of at least one remaining substituent is less than such angle in a similar complex containing a similar pi-bonded moiety lacking in such constrain-inducing substituent, and provided further that for such complexes comprising more than one delocalized, substituted pi-bonded moiety, only one thereof for each metal atom of the complex is a cyclic, delocalized, substituted pi-bonded moiety.
  • the constrained geometry catalyst may further comprise an activating co-catalyst.
  • suitable constrained geometry catalysts are disclosed U.S. Pat. No. 5,132,380, the entire content of which is incorporated by reference herein.
  • the single-site polyethylene may be unimodal or multimodal (e.g., bimodal).
  • a unimodal polyethylene polymer is prepared from one single-site catalyst under one set of polymerization conditions.
  • suitable unimodal polyethylene polymers include those sold under the trade names EXACTTM and EXCEEDTM, available from the ExxonMobil Chemical Company, Houston, Texas; and ENGAGETM and AFFINITYTM, available from The Dow Chemical Company, Midland, Mich.
  • a multimodal polyethylene polymer is prepared from one, two, or more different catalysts and/or under two or more different polymerization conditions. Each component may be prepared with a different catalyst and/or under different polymerization conditions.
  • multi relates to the number of different polymer components present in the polymer.
  • multimodal polyethylene polymers are set forth in U.S. Pat. No. 5,047,468, the entire content of which is incorporated by reference herein, and include those polymers sold under the trade name ELITETM, available from The Dow Chemical Company, Midland, Mich.
  • Polyamides may include, but are not limited to, polymers produced by a polycondensation reaction of a diamine and a dicarboxylic acid, or from self-condensation of a lactam.
  • Aliphatic, semi-aromatic, or aromatic polyamides can be used herein. In some embodiments, aliphatic polyamides are used.
  • aliphatic polyamides includes polyamides having a structure exclusively composed of aliphatic monomers.
  • si-aromatic polyamides includes polyamides having a structure composed of aliphatic and aromatic monomers.
  • aromatic polyamides includes polyamides having a structure composed exclusively of aromatic monomers.
  • Suitable dicarboxylic acids can include, but are not limited to, adipic acid, pimelic acid, suberic acid, sebacic acid, dodecanedioic acid, azelaic acid, 1, 10-decanedicarboxylic acid, terephthalic acid, isophthalic acid and 2,6-naphthalenedicarboxylic acid.
  • Suitable diamines can include, but are not limited to, hexamethylenediamine, octamethylenediamine, metaxylylenediamine, paraxylylenediamine, l,3-bis(aminomethyl)cyclohexane, l,4-bis(aminomethyl)cyclohexane, tetramethylenediamine, nonamethylenediamine, and 2-methyl-l,5-pentanediamine. It should be understood that blends of polyamides may also be used herein.
  • Exemplary polyamides can include polyhexamethylene adipamide, polyhexamethylene azelaamide, polyhexamethylene sebacamide, polyhexamethylene dodecanoamide, poly bis-(4-aminocyclohexyl)methane dodecanoamide, or the polyamides produced by ring opening of lactams; e.g., polycaprolactam, polylauryl lactam, or poly-11- aminoundecano amide.
  • the polyamide is polyhexamethylene adipamide or polycaprolactam, or mixtures thereof.
  • Polyesters may include, but are not limited to, polymers obtained through polymerization of a dicarboxylic acid and a diol.
  • Suitable dicarboxylic acids can include, but are not limited to, terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid; naphthalenedicarboxylic acids, 1,5-naphthalenedicarboxylic acid,
  • Suitable diols may include, but are not limited to, aliphatic diols, such as, ethylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,4-cyclohexanedimethanol, 1,6-hexanediol, and their ester-forming derivatives.
  • Exemplary polyesters can include, but are not limited to, ethylene terephthalate resin, ethylene isophthalate, polyalkylene terephthalates, polyethylene terephthalate/isophthalate copolymer resin, poly ethylene/ 1, 4-cyclohexanedimethylene terephthalate copolymer resin, polyethylene 2,6-naphthalenedicarboxylate resin, polyethylene 2,6-naphthalenedicarboxylate/terephthalate copolymer resin, polyethylene terephthalate/4,4'- biphenyldicarboxylate resin, poly- 1,3-propylene terephthalate resin, polybutylene terephthalate resin, polybutylene 2,6-naphthalenedicarboxylate resin.
  • the polyester is ethylene terephthalate resin, ethylene isophthalate, polyalkylene terephthalate resin, polyethylene/ 1, 4-cyclohexanedimethylene terephthalate copolymer resin, or polyethylene terephthalate/isophthalate copolymer resin.
  • the artificial turf filaments may further include one or more additives.
  • suitable additives include antioxidants, pigments, colorants, UV stabilizers, UV absorbers, curing agents, cross linking co-agents, boosters and retardants, processing aids, fillers, coupling agents, ultraviolet absorbers or stabilizers, antistatic agents, nucleating agents, slip agents, plasticizers, lubricants, viscosity control agents, tackifiers, anti-blocking agents, surfactants, extender oils, acid scavengers, and metal deactivators.
  • Additives can be used in amounts ranging from less than about 0.01 wt % to more than about 10 wt % based on the weight of the composition.
  • Nonlimiting examples of pigments include inorganic pigments that are suitably colored to provide an aesthetic appeal including various shades of green, white (Ti0 2 , rutile), iron oxide pigments, and any other color.
  • antioxidants include, but are not limited to, hindered phenols, such as tetrakis[methylene(3,5-di-tert- butyl-4-hydroxyhydro-cinnamate)] methane; bis[(beta-(3, 5-ditert-butyl-4-hydroxybenzyl)-methylcarboxyethyl)] sulphide, 4,4'-thiobis(2-methyl-6-tert- butylphenol), 4,4'-thiobis(2-tert-butyl-5-methylphenol), 2,2'-thiobis(4-methyl-6-tert- butylphenol), and thiodiethylene bis(3,5-di-tert-butyl-4-hydroxy)hydrocinnamate; phosphites and phosphonites, such as, tris(2,4-di-tert-butylphenyl)phosphite and di-tert-butylphenyl- phosphonite; thio compounds
  • curing agents include, but are not limited to, dicumyl peroxide, bis (alpha- t-butyl peroxyisopropyl)benzene, isopropylcumyl t-butyl peroxide, t-butylcumylperoxide, di-t-butyl peroxide, 2,5-bis(t-butylperoxy)2,5-dimethylhexane, 2,5- bis (t-butylperoxy )2 , 5 -dime thy lhexyne- 3 , 1 , 1 -bis (t-butylperoxy )3 ,3,5 -trimethylcyclohexane, isopropylcumyl cumylperoxide, di(isopropylcumyl) peroxide, or mixtures thereof.
  • curing co-agents such as triallyl isocyanurate, ethyoxylated bisphenol A dimethacrylate, a-methyl styrene dimer, and other co-agents described in U.S. Pat. Nos. 5,346,961 and 4,018,852.
  • processing aids include, but are not limited to, metal salts of carboxylic acids, such as, zinc stearate or calcium stearate; fatty acids, such as, stearic acid, oleic acid, or erucic acid; fatty amides, such as, stearamide, oleamide, erucamide, or ⁇ , ⁇ '- ethylenebisstearamide; polyethylene wax; oxidized polyethylene wax; polymers of ethylene oxide; copolymers of ethylene oxide and propylene oxide; vegetable waxes; petroleum waxes; non-ionic surfactants; and polysiloxanes.
  • carboxylic acids such as, zinc stearate or calcium stearate
  • fatty acids such as, stearic acid, oleic acid, or erucic acid
  • fatty amides such as, stearamide, oleamide, erucamide, or ⁇ , ⁇ '- ethylenebisstearamide
  • polyethylene wax oxidized polyethylene wax
  • UV stabilizers and UV absorbers include, but are not limited to, hindered amine light stabilizers, benzophenone, benzotriazole, hydroxyphenyl triazine, 2-(2'-hydroxyphenyl)benzotriazoles, the UVINUL® 3000 UV absorber, the TINUVINTM P UV absorber, the IRGANOXTM 1098 antioxidant, the UVINUL® 3008 UV absorber, the TINUVINTM 320 UV absorber, the IRGANOXTM 1010 antioxidant, the IRGANOXTM 1076 antioxidant, and the IRGAFOSTM 168 antioxidant.
  • hindered amine light stabilizers include, but are not limited to, hindered amine light stabilizers, benzophenone, benzotriazole, hydroxyphenyl triazine, 2-(2'-hydroxyphenyl)benzotriazoles, the UVINUL® 3000 UV absorber, the TINUVINTM P UV absorber, the IRGANOXTM 1098 antioxidant, the UVIN
  • the artificial turf filament may be extruded to a specified width, thickness, and/or cross-sectional shape depending on the physical dimensions of the extruder.
  • the artificial turf filament can include a monofilament, a multifilament, a film, a fiber, a yarn, such as, for example, tape yarn, fibrillated tape yarn, or slit-film yarn, a continuous ribbon, and/or other stretched fibrous materials used to form synthetic grass blades or strands of an artificial turf field.
  • the artificial turf filament may optionally undergo further post- extrusion processing (e.g., annealing, cutting, etc.).
  • the artificial turf filament has a surface area, with at least a portion of the surface area being halogenated to form a halogenated surface.
  • Suitable halogens may include fluorine, chlorine, bromine, or iodine.
  • the halogen is fluorine, and at least a portion of the surface area is fluorinated to form a fluorinated surface.
  • the surface area to be treated is exposed to a composition containing a suitable source of a reactive halogen, such as, for example, halogen-containing plasmas, halogen-containing gas mixtures, halogen dissolved in solvents, or UV-activated halogen gas mixtures.
  • the surface area is exposed to a gas mixture containing a halogen.
  • the amount of halogen needed to enhance properties of the artificial turf filament is relatively minor.
  • the artificial turf filament is exposed to a composition containing a halogen at a concentration of at least 0.1 wt.%, at least 1 wt.%, at least 5 wt.%, or at least 10 wt.% of a halogen. All individual values and subranges of at least 0.1 wt.% are included and disclosed herein.
  • the artificial turf filament is exposed to a composition containing a halogen at a concentration of 0.1 wt.% to 50 wt.%, 0.1 wt.% to 40 wt.%, 0.1 wt.% to 30 wt.%, 0.1 wt.% to 20 wt.%, 0.1 wt.% to 15 wt.%, or 0.1 wt.% to 10 wt.%.
  • the artificial turf filament is exposed to a pure or substantially pure halogen composition.
  • the artificial turf filament may be exposed to a composition containing a halogen for a period of 0.1 seconds to 15 minutes, 0.5 seconds to 5 minutes, 0.5 second to 2 minutes, 0.5 second to 60 seconds, 0.5 second to 30 seconds, or 0.5 to 15 seconds.
  • a composition containing a halogen for a period of 0.1 seconds to 15 minutes, 0.5 seconds to 5 minutes, 0.5 second to 2 minutes, 0.5 second to 60 seconds, 0.5 second to 30 seconds, or 0.5 to 15 seconds.
  • 0.1 seconds to 15 minutes 0.5 seconds to 5 minutes, 0.5 second to 2 minutes, 0.5 second to 60 seconds, 0.5 second to 30 seconds, or 0.5 to 15 seconds.
  • the temperature of the composition containing a halogen and the artificial turf filament can be any temperature that is suitable for the process being used.
  • the temperature of the artificial turf filament and/or the composition containing a halogen may range from -50°C to 100°C, -30°C to 80°C, -15°C to 70°C, -5°C to 50°C, 5°C to 40°C, 10°C to 30°C, and 15°C to 25°C.
  • the composition containing a halogen can be exposed to the artificial turf filament at pressures from 0.1 to 50 atmospheres (atms). All individual values and subranges from 0.1 to 50 atms are included and disclosed herein.
  • the composition containing a halogen can be exposed to the artificial turf filament at pressures from 0.5 to 25 atms, from 0.75 to 10 atms, from 1.0 to 5.0 atms, or from 0.75 to 1.25 atms.
  • pressures from 0.5 to 25 atms, from 0.75 to 10 atms, from 1.0 to 5.0 atms, or from 0.75 to 1.25 atms.
  • Any combinations of the above halogens, amounts, times, and temperatures can be used, depending on the application, and values other than those explicitly given can be used, depending on the application, and are considered within the spirit and scope of the invention.
  • the artificial turf filament is exposed to a composition containing fluorine at a concentration of at least 0.1 wt.%, at least 1 wt.%, at least 5 wt.%, or at least 10 wt.% of fluorine. All individual values and subranges of at least 0.1 wt.% are included and disclosed herein.
  • the artificial turf filament is exposed to a composition containing fluorine at a concentration of 0.1 wt.% to 50 wt.%, 0.1 wt.% to 40 wt.%, 0.1 wt.% to 30 wt.%, 0.1 wt.% to 20 wt.%, 0.1 wt.% to 15 wt.%, or 0.1 wt.% to 10 wt.%.
  • the artificial turf filament is exposed to a pure or substantially pure fluorine composition.
  • the artificial turf filament may be exposed to a composition containing fluorine for a period of 0.1 seconds to 15 minutes, 0.5 seconds to 5 minutes, 0.5 second to 2 minutes, 0.5 second to 60 seconds, 0.5 second to 30 seconds, or 0.5 to 15 seconds.
  • a composition containing fluorine for a period of 0.1 seconds to 15 minutes, 0.5 seconds to 5 minutes, 0.5 second to 2 minutes, 0.5 second to 60 seconds, 0.5 second to 30 seconds, or 0.5 to 15 seconds.
  • 0.1 seconds to 15 minutes 0.5 seconds to 5 minutes, 0.5 second to 2 minutes, 0.5 second to 60 seconds, 0.5 second to 30 seconds, or 0.5 to 15 seconds.
  • the composition containing fluorine can have any temperature that is suitable for the process being used.
  • the composition containing fluorine may have a temperature from -50°C to 100°C, -30°C to 80°C, -15°C to 70°C, -5°C to 50°C, 5°C to 40°C, 10°C to 30°C, and 15°C to 25°C.
  • the composition containing fluorine can be exposed to the artificial turf filament at pressures from 0.1 to 50 atmospheres (atms). All individual values and subranges from 0.1 to 50 atms are included and disclosed herein.
  • the composition containing fluorine can be exposed to the artificial turf filament at pressures from 0.5 to 25 atms, from 0.75 to 10 atms, from 1.0 to 5.0 atms, or from 0.75 to 1.25 atms.
  • the halogen or fluorine may be employed as a mixture with other gases, such as, oxygen, nitrogen, carbon dioxide, noble gases, such as, helium or argon, hydrogen halides, such as, hydrogen chloride or hydrogen bromide, vapours, such as, water vapour and/or solvent vapours, such as, methylene chloride vapour.
  • Exposure of at least a portion of the surface area of the artificial turf filament to a composition containing a halogen, or in some embodiments, fluorine may be accomplished via batch or continuous operations.
  • halogenated surfaces modify the artificial turf filament to enhance the filament properties.
  • the artificial turf filaments described herein have increased adhesion to a polyurethane substrate, improved hydrophilicity, an observed fiber elongation at break that is less than 10% different, or an observed fiber force at break that is less than 5% different, when compared to a non- halogenated artificial turf filament.
  • the artificial turf filaments described herein have improved hydrophilicity as evidenced by a water contact angle of less than 80 degrees.
  • the artificial turf filaments described herein have no significant structural modifications due to the halogenation process, or in some embodiments, the fluorination process.
  • artificial turf filaments having little to no polarity can have a low surface tension such that when water is sprayed onto the filament, the water can easily run off the surface of the filament instead of forming a film or coat layer on the filament surface.
  • the artificial turf filaments described herein have improved hydrophilicity, as evidenced by a water contact angle of less than 80 degrees, which can allow the filaments to better withstand thermal stresses and/or provide improved sports performance characteristics.
  • the artificial turf filaments may exhibit a smoother, glossy appearance when compared to natural grass. Without being bound by theory, it is believed that by halogenating at least a portion of the surface of the artificial turf filament, the artificial turf filaments described herein have an improved appearance due to an increase in the surface roughness of the filament that imparts a different light scattering pattern giving the artificial turf filaments a more matte appearance.
  • FIG. 1 depicted is a cutaway view of an artificial turf field 100 according to one or more embodiments shown and/or described herein.
  • the artificial turf field 100 comprises a primary backing 105 having a top side 110 and a bottom side 115; and at least one artificial turf filament 120 as previously described herein.
  • the at least one artificial turf filament 120 is affixed to the primary backing 105 such that the at least one artificial turf filament 120 provides a tufted face 125 extending outwardly from the top side 110 of the primary backing 105.
  • affix includes, but is not limited to, coupling, attaching, connecting, fastening, joining, linking or securing one object to another object through a direct or indirect relationship.
  • the tufted face 125 extends from the top side 110 of the primary backing 105, and can have a cut pile design, where the artificial turf filament loops may be cut, either during tufting or after, to produce a pile of single artificial turf filament ends instead of loops.
  • the primary backing 105 can include, but is not limited to, woven, knitted, or non-woven fibrous webs or fabrics made of one or more natural or synthetic fibers or yams, such as polypropylene, polyethylene, polyamides, polyesters, and rayon.
  • the artificial turf field 100 may further comprise a secondary backing 130 bonded to at least a portion of the bottom side 115 of the primary backing 105 such that the at least one artificial turf filament 120 is affixed in place to the bottom side 115 of the primary backing 105.
  • the secondary backing 130 may comprise polyurethane (including, for example, polyurethane supplied under the name ENFORCERTM or ENHANCERTM available from The Dow Chemical Company) or latex-based materials, such as, styrene-butadiene latex, or acrylates.
  • polyurethane including, for example, polyurethane supplied under the name ENFORCERTM or ENHANCERTM available from The Dow Chemical Company
  • latex-based materials such as, styrene-butadiene latex, or acrylates.
  • the primary backing 105 and/or secondary backing 130 may have apertures through which moisture can pass.
  • the apertures may be generally annular in configuration and are spread throughout the primary backing 105 and/or secondary backing 130.
  • there may be any number of apertures, and the size, shape and location of the apertures may vary depending on the desired features of the artificial turf field 100.
  • the artificial turf field 100 may be manufactured by providing at least one artificial turf filament 120 as described herein and affixing the at least one artificial turf filament 120 to a primary backing 105 such that that at least one artificial turf filament 120 provides a tufted face 125 extending outwardly from a top side 110 of the primary backing 105.
  • the artificial turf field 100 may further be manufactured by bonding a secondary backing 130 to at least a portion of the bottom side 115 of the primary backing 105 such that the at least one artificial turf filament 120 is affixed in place to the bottom side 115 of the primary backing 105.
  • the halogenated or fluorinated surface of the at least one artificial turf filament 120 is formed prior to affixing the at least one artificial turf filament 120 to the primary backing 105. In other embodiments, the halogenated or fluorinated surface of the at least one artificial turf filament 120 is formed subsequent to affixing the at least one artificial turf filament 120 to the primary backing 105.
  • the artificial turf field 100 may optionally comprise a shock absorption layer underneath the secondary backing of the artificial turf field.
  • the shock absorption layer can be made from polyurethane, PVC foam plastic or polyurethane foam plastic, a rubber, a closed-cell crosslinked polyethylene foam, a polyurethane underpad having voids, an elastomer foam of polyvinyl chloride, polyethylene, polyurethane, and/or polypropylene.
  • Non- limiting examples of a shock absorption layer are the ENFORCERTM Sport Polyurethane Systems, and the ENHANCERTM Sport Polyurethane Systems (available from The Dow Chemical Company).
  • the artificial turf field 100 may optionally comprise an infill material.
  • suitable infill materials include, but are not limited to, mixtures of granulated rubber particles like SBR (styrene butadiene rubber) recycled from car tires, EPDM (ethylene-propylene-diene monomer), other vulcanized rubbers or rubber recycled from belts, thermoplastic elastomers (TPEs) and thermoplastic vulcanizates (TPVs).
  • the artificial turf field 100 may optionally comprise a drainage system.
  • the drainage system allows water to be removed from the artificial turf field and prevents the field from becoming saturated with water.
  • Nonlimiting examples of drainage systems include stone-based drainage systems, such as, for example, the EXCELDRAINTM Sheet 100 drainage system, the EXCELDRAINTM Sheet 200 drainage system, and the EXCELDRAINTM EX-T STRIP drainage system (available from American Wick Drain Corp., Monroe, N.C.).
  • a blend was prepared using 94 wt.% of an ethylene-octene interpolymer that was prepared via a solution polymerization process in a dual reactor configuration connected in series, having a melt index of approximately 3.5 g/10 minutes, and a density of approximately 0.920 g/cc, 5 wt.% of a commercially available color pigment (masterbatch 90-125335 supplied by BASF SE, Germany), and 1 wt.% of a commercially available fluoroelastomer processing aid (VIBATANTM LLDPE Process Aid 433B, supplied by Viba S.p.A., Italy).
  • the Barmag/Oerlikon monofilament extrusion line includes a 40 mm extruder, a spinneret with 48 holes, a water bath, one stretching oven (hot air), and three annealing ovens (air).
  • the water bath was set at 35 °C.
  • the air gap between the spinneret and the water bath was set at 40 mm for all trials.
  • the temperature of the stretching oven was set at 97 °C.
  • Annealing ratios were set at, respectively, 0.72, 0.92 and 1.02 and the temperature of the three annealing ovens were set at, respectively, 118°C, 118°C and 115°C.
  • a blend was prepared using 94 wt. % of an ethylene-octene interpolymer that was prepared via a solution polymerization process in a dual reactor configuration connected in series, having a melt index of approximately 3.5 g/10 minutes, and a density of approximately 0.920 g/cc, 5 wt.% of a commercially available color pigment (masterbatch 90-125335 supplied by BASF SE, Germany), and 1 wt.% of a commercially available fluoroelastomer processing aid (VIBATANTM LLDPE Process Aid 433B, supplied by Viba S.p.A., Italy).
  • VIBATANTM LLDPE Process Aid 433B supplied by Viba S.p.A., Italy
  • the Barmag/Oerlikon monofilament extrusion line includes a 40 mm extruder, a spinneret with 48 holes, a water bath, one stretching oven (hot air), and three annealing ovens (air).
  • the water bath was set at 35 °C.
  • the air gap between the spinneret and the water bath was set at 40 mm for all trials.
  • the temperature of the stretching oven was set at 97 °C.
  • Annealing ratios were set at, respectively, 0.72, 0.92 and 1.02 and the temperature of the three annealing ovens at respectively 118°C, 118°C and 115°C.
  • inventive filaments were then analyzed and compared to comparative filaments for adhesion peel strength, hydrophilicity, tensile properties, surface roughness, and differential scanning calorimetry.
  • inventive filaments were also analyzed and compared to the comparative filaments after exposure to accelerated weathering conditions for 1300 hours in the Xenon chamber of a weathering machine Q-sun XE-2 Xenon Test Chamber (Q-lab). The exposure time of 1300 hours was set to mimic 1 year of sun exposure in a climate similar to Florida.
  • a CRE tensile testing machine (Instron) was used to measure the peel force of inventive and comparative filaments from a polyurethane substrate.
  • a polyurethane precursor composition was poured onto a 9" x 12" sheet.
  • Inventive and comparative filaments were each applied to the poured polyurethane precursor composition, and then heated for 15 minutes at 120°C.
  • the specimens were subsequently allowed to cure for at least three days.
  • Each specimen was sized to have a length x width x height of about 6" (150 mm) x 0.5" (12.7 mm) x 1/64" (0.20 mm).
  • one inch of the filament was manually separated from the polyurethane substrate.
  • the starting gap between the grips was set to 1" (25.4 mm) and the filament was placed in the movable grip while the polyurethane substrate was placed in the stationary grip.
  • the filaments were peeled from the polyurethane substrate at a rate of 12 in/min (300 mm/min) until either the filament broke or until only one inch of filament/polyurethane substrate was left at the second end of the specimen.
  • a trace is generated consisting of a series of peaks representing the force to peel the filament from the polyurethane substrate.
  • the initial peak force was ignored (which represents approximately 0.5 inches of specimen separation), and the average of all peaks between the initial peak force and the stopping point was determined.
  • At least five specimens of the inventive filaments were measured and at least five specimens of the comparative filaments were measured. The average of the five measurements for the inventive and for the comparative filaments was calculated.
  • FIG. 2A depicted is an inventive filament after peeling.
  • the filament was not easily peeled from the polyurethane substrate, and is shown with much of the inventive filament still adhered to the polyurethane substrate due to the filament breaking while it was peeled.
  • FIG. 2B the comparative filament was easily peeled from the polyurethane substrate, and the comparative filament is shown completely separated from the polyurethane substrate.
  • the hydrophilic properties of the inventive and comparative filaments were analyzed with respect to their respective water contact angles with tap water at room temperature, using standard contact angle measuring equipment, to compare the polarity of the filaments.
  • the water droplet on the comparative filament shown in FIG. 3B has a more circular shape, and therefore, a higher water contact angle, than the water droplet on the inventive filament shown in FIG. 3A.
  • the measured water contact angle value is lower for the inventive filament as compared to the comparative filament, indicating that the inventive filament surface has improved hydrophilicity (i.e., a more hydrophilic and polar surface), as compared to the comparative filament.
  • the hydrophilic properties of the inventive and comparative filaments were also analyzed with respect to their respective water contact angles using tap water at room temperature after weathering (as described above) of the filaments, using contact angle measuring equipment. As shown in FIG. 5, the measured water contact angle value is lower for the inventive filament as compared to the comparative filament, even after weathering, indicating that the inventive filament surface has improved hydrophilicity (i.e., a more hydrophilic and polar surface), as compared to the comparative filament.
  • Inventive and comparative filaments were measured for elongation % (i.e., the distance in percent that the filament sample will stretch from its original size to the point at which it breaks) and fiber force at break (i.e., the force required to break the filament sample in a linear direction) at break using an Instron tensile testing machine. The tests were performed at room temperature. Eight inventive filament samples having a fiber titer of 2050 dTex and a length of 100 mm were pulled at a test speed of 100 mm/min until break, at which point the elongation percent and force is recorded. Eight comparative filament samples having a fiber titer of 2030 dTex and a length of 100 mm were pulled at a test speed of 100 mm/min until break, at which point the elongation percent and force is recorded.
  • the fiber elongation at break % was calculated to be the average of the eight elongation percent measurements for the inventive filaments and the average of the eight elongation percent measurements for the comparative filaments.
  • the fiber force at break was calculated to be the average of the eight peak force measurements for the inventive filaments divided by its fiber titer, and the average of the eight peak force measurements for the comparative filaments divided by its fiber titer.
  • FIG. 6A shows the surface of the comparative filament at ⁇ , ⁇ magnification (left photo) and at a 5,000X magnification (right photo).
  • FIG. 6B shows the surface of the inventive filament at ⁇ , ⁇ magnification (left photo) and at 5,000X magnification (right photo).
  • a visual comparison of the images shows that the surface of the inventive filament is rougher than the surface of the comparative filament.
  • DSC was performed on the inventive and comparative filaments.
  • the samples of each of the inventive and comparative filaments were heated tol50°C, cooled at 10°C/min, and the heat flow was recorded, as shown in FIG. 7A, by scanning from -40°C to 150°C at 10°C/min using DSC822e Differential Scanning Calorimeter (Mettler Toledo)
  • the DSC cooling curve, as shown in FIG. 7B was also recorded by scanning from 180°C to -40°C at 10°C/min. Referring to FIGS. 7A & 7B, the curves show that no structural modification occurred to the inventive filament due to the fluorination process.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Artificial Filaments (AREA)
  • Road Paving Structures (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)

Abstract

On décrit un filament de gazon artificiel comprenant une polyoléfine, un polyamide, un polyester ou leur combinaison. Le filament présente une aire superficielle dont au moins une partie est halogénée pour former une surface halogénée.
PCT/US2015/011681 2014-01-22 2015-01-16 Filaments de gazon artificiel, et articles fabriqués à partir de ceux-ci WO2015112434A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15702072.8A EP3097228B1 (fr) 2014-01-22 2015-01-16 Filaments de gazon artificiel, et articles fabriqués à partir de ceux-ci
CN201580004732.0A CN105917043A (zh) 2014-01-22 2015-01-16 人造草皮长丝及由其制成的制品
BR112016016343A BR112016016343A2 (pt) 2014-01-22 2015-01-16 Filamentos de grama artificial e artigos preparados dos mesmos
ES15702072T ES2735077T3 (es) 2014-01-22 2015-01-16 Filamentos de césped artificial, y artículos hechos de los mismos

Applications Claiming Priority (2)

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US14/160,810 US20150204027A1 (en) 2014-01-22 2014-01-22 Artificial turf filaments, and articles made therefrom
US14/160810 2014-01-22

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WO2015112434A1 WO2015112434A1 (fr) 2015-07-30
WO2015112434A9 true WO2015112434A9 (fr) 2016-07-07

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EP (1) EP3097228B1 (fr)
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CA2928211A1 (fr) * 2015-04-27 2016-10-27 Shaw Industries Group, Inc. Systeme de gazon artificiel enroulable modulaire
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ES2837427T3 (es) * 2017-06-30 2021-06-30 Dow Global Technologies Llc Filamentos de césped artificial y artículos fabricados con ellos
KR101980371B1 (ko) * 2018-04-24 2019-05-20 가온스포츠 주식회사 플라즈마 처리를 통해 표면을 개질한 친환경 인조잔디 원사 및 이를 활용한 인조잔디 구조체
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KR102046629B1 (ko) * 2018-12-06 2019-11-20 (주)대건씨앤엘 Cnt로 기능성을 보강한 인조잔디 구조체 및 이것을 이용한 인조잔디의 제조방법
GB202018370D0 (en) * 2020-11-23 2021-01-06 Don & Low Ltd Improvements in or relating to artifical surfaces
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AR099168A1 (es) 2016-07-06
EP3097228B1 (fr) 2019-05-22
WO2015112434A1 (fr) 2015-07-30
CN105917043A (zh) 2016-08-31
BR112016016343A2 (pt) 2017-08-08
EP3097228A1 (fr) 2016-11-30
ES2735077T3 (es) 2019-12-16
US20150204027A1 (en) 2015-07-23

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