EP2284318B1 - Grass yarn - Google Patents
Grass yarn Download PDFInfo
- Publication number
- EP2284318B1 EP2284318B1 EP09165468.1A EP09165468A EP2284318B1 EP 2284318 B1 EP2284318 B1 EP 2284318B1 EP 09165468 A EP09165468 A EP 09165468A EP 2284318 B1 EP2284318 B1 EP 2284318B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grass
- yarn
- yarns
- grass yarn
- ridges
- 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.)
- Revoked
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/445—Yarns or threads for use in floor fabrics
-
- 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
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/20—Industrial for civil engineering, e.g. geotextiles
- D10B2505/202—Artificial grass
Definitions
- the invention relates to grass yarn for artificial grass coverings or turf coverings, such as known from WO 2005 005731 or WO 01 61110 .
- Synthetic grass exists of synthetic blades or fibers that are attached to a support layer.
- On artificial turf can be played more hours per day, than natural turf.
- a training pitch provided with artificial turf can be used more intense, such that the number of training pitches can be reduced.
- the stiffness of the yarns is one of the important aspects. If the yarns are to flexible, they will fall down. If the yarns are too stiff, they could hurt the players playing on the artificial turf. Also for a sport field, like a soccer field, the ball - surface interaction is influenced by the stiffness of the yarns. For example how a ball will roll over the artificial turf. Player-surface interactions are also influenced by stiffness, for example a stiff yarn can injure players.
- Elasticity modulus In general stiffness is influenced by the Elasticitymodulus (or Young's modulus) and by the cross sectional inertia. Elasticity modulus is a result of two major properties; first the choice of the raw raw materials and secondly the processing conditions of the yarn.
- the first artificial turf coverings were mainly produced with a fibrillated tape fiber. These tapes have a rectangular shape, which has a relative low cross sectional inertia. To arrive at a desired stiffness of the yarns, the thickness will be such, that the appearance of the tape fibers does not correspond with the appearance of natural grass.
- a Second disadvantage of rectangular shapes is the shiny effect. Often described in the market as plastic look.
- polymers could be used for the production of blades for artificial turf. Polyethylene is at this moment the most used raw material for artificial grass yarns. Depending on the application also the usage of polypropylene and polyamide can be seen. Depending on the additives that are used and the production method these polymers tend to give the product a shiny look.
- the plastic look makes the product look cheap. Especially in applications where no sport properties and only optical properties are important the appearance of a grass field is important.
- Monofilament yarns provide an increased design freedom, like in the cross sectional shape, compared to fibrillated tape yarns. Instead of the common rectangular cross section of fibrillated tape, monofilament yarns have the possibility of almost any desired cross section.
- a circular cross section or I-shaped cross section has for example a higher cross sectional inertia and subsequently a higher stiffness, than a rectangular cross section.
- the grass yarn (or grass filament) has a sickle-shaped cross section.
- the yarn has a curved cross section with a thick center part tapering to both ends. This results in an increased cross sectional inertia and thus higher stiffness. Also, due to the curved shape, light is reflected to different directions by the yarn, reducing the reflection.
- Another embodiment of the grass yarn according to the invention comprises a plurality of ridges arranged on the surface of the grass yarn. These ridges disperse the light such that the reflection of the yarns is reduced.
- the plurality of ridges are arranged in longitudinal direction of the grass yarn.
- the longitudinal ridges can be manufactures easily.
- the height of the ridges is 0,5% - 15% of the main thickness of the grass yarn. With the main thickness it is understood the maximum thickness of the cross section of the yarn.
- the grass yarn according to the invention is preferably of a material selected from the group high density polyethylene (HDPE), polypropylene (PP), polyamide (PA), polyester and low density polyethylene (LDPE). More preferred, the material of the grass yarn is linear low density polyethylene (LLDPE).
- HDPE high density polyethylene
- PP polypropylene
- PA polyamide
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- the linear mass density of an individual filament is in the range of 50 - 300 tex.
- the invention further relates to an artificial grass covering comprising a plurality of grass yarns according to the invention.
- the artificial grass covering according to the invention comprises a support layer to which the grass yarns are arranged.
- FIG 1 a cross sectional view of a first embodiment 1 of a grass yarn is shown.
- the shape of the grass yarn 1 is sickle-shaped.
- This sickle-shaped grass yarn 1 has a thick center portion with a maximum thickness t 1 and two ends tapering into edges 2.
- the convex side 3 of the sickle-shaped grass yarn 1 is provided with ridges 4.
- the concave side 5 of the grass yarn 1 is in this embodiment smooth.
- the ridges 4 have a thickness t 2 .
- This thickness t 2 is typically 0,5% - 15% of the thickness t 1 of the sickle shape.
- the ridges 4 will scatter light such that the grass yarns according to the invention will have a light reflection similar to natural grass. Furthermore the curved sickle-shape provides for a high cross sectional inertia resulting in a relative high stiffness of the grass yarn 1 relative to the maximum thickness t 1 of the yarn 1.
- FIG 2 a second embodiment of a grass yarn 10 according to the invention is shown.
- the shape of this grass yarn 10 in cross section is also sickle shaped.
- both the convex side 11 as the concave side 12 are provided with ridges 13 in order to reduce light reflection.
- FIG 3 shows an embodiment of an artificial grass covering 20.
- This grass covering 20 has a support layer 21, in which tufts 22, 23 of grass yarns 24.
- the grass yarns 24 are shown schematically arranged in the support layer 21.
- grass yarns 24 per tuft 22, 23 are shown for explanation of the invention.
- 4 - 12 grass yarns are used per tuft in standard applications of a grass covering according to the invention.
- This combined yarn is used for tufting the following grass carpet construction:
- Figure 4A shows a cross sectional view of an embodiment of a yarn 30 not according to the invention.
- This yarn 30 has an ellipse shaped cross section, being provided with evenly distributed ridges 31 at the surface.
- Figure 4B shows a cross sectional view of another embodiment of a yarn 35 not according to the invention.
- This yarn 35 has a rectangular shaped cross section, being provided with evenly distributed ridges 36 at the surface.
Description
- The invention relates to grass yarn for artificial grass coverings or turf coverings, such as known from
WO 2005 005731 orWO 01 61110 - The market for artificial turf has seen a rapid development during the last years due to the numerous advantages of artificial turf above natural turf. Growth has been seen in several sport applications, especially in soccer, but also in several kinds of urban applications.
- On artificial turf can be played more hours per day, than natural turf. A training pitch provided with artificial turf can be used more intense, such that the number of training pitches can be reduced.
- In critical climate situations, like intense heat, very wet or extreme cold, artificial grass has proven to be a good solution over natural grass.
- Where in the beginning of the installation of artificial turf the functional properties were mainly important, nowadays the natural look has become important as well. Especially in urban and landscape applications the optical performance of a grass field has become an important issue. With regard to the functional properties, the stiffness of the yarns is one of the important aspects. If the yarns are to flexible, they will fall down. If the yarns are too stiff, they could hurt the players playing on the artificial turf. Also for a sport field, like a soccer field, the ball - surface interaction is influenced by the stiffness of the yarns. For example how a ball will roll over the artificial turf. Player-surface interactions are also influenced by stiffness, for example a stiff yarn can injure players. In general stiffness is influenced by the Elasticitymodulus (or Young's modulus) and by the cross sectional inertia. Elasticity modulus is a result of two major properties; first the choice of the raw raw materials and secondly the processing conditions of the yarn.
- The first artificial turf coverings were mainly produced with a fibrillated tape fiber. These tapes have a rectangular shape, which has a relative low cross sectional inertia. To arrive at a desired stiffness of the yarns, the thickness will be such, that the appearance of the tape fibers does not correspond with the appearance of natural grass.
- A Second disadvantage of rectangular shapes is the shiny effect. Often described in the market as plastic look. Several kinds of polymers could be used for the production of blades for artificial turf. Polyethylene is at this moment the most used raw material for artificial grass yarns. Depending on the application also the usage of polypropylene and polyamide can be seen. Depending on the additives that are used and the production method these polymers tend to give the product a shiny look. The plastic look makes the product look cheap. Especially in applications where no sport properties and only optical properties are important the appearance of a grass field is important.
- Monofilament yarns provide an increased design freedom, like in the cross sectional shape, compared to fibrillated tape yarns. Instead of the common rectangular cross section of fibrillated tape, monofilament yarns have the possibility of almost any desired cross section. A circular cross section or I-shaped cross section has for example a higher cross sectional inertia and subsequently a higher stiffness, than a rectangular cross section.
- It has proven that a monofilament yarn having a cross section in the shape of a semi-circle with a spine in the middle has a good touch and a better stiffness. However, a disadvantage is that such yarns tend to split along the spine after a period of time. Subsequently the stiffness is no longer maintained and the yarns fall down easily.
- It is an object of the invention to provide a grass yarn for artificial grass coverings, which has an increased cross sectional inertia and has a reduced shiny effect.
- This object is achieved with a grass yarn according to claim 1.
- According to the invention, the grass yarn (or grass filament) has a sickle-shaped cross section. With a sickle-shaped cross section, the yarn has a curved cross section with a thick center part tapering to both ends. This results in an increased cross sectional inertia and thus higher stiffness. Also, due to the curved shape, light is reflected to different directions by the yarn, reducing the reflection.
- Another embodiment of the grass yarn according to the invention comprises a plurality of ridges arranged on the surface of the grass yarn. These ridges disperse the light such that the reflection of the yarns is reduced.
- Preferably the plurality of ridges are arranged in longitudinal direction of the grass yarn. In combination with monofilament yarns, the longitudinal ridges can be manufactures easily.
- In yet another embodiment of the grass yarn according to the invention the height of the ridges is 0,5% - 15% of the main thickness of the grass yarn. With the main thickness it is understood the maximum thickness of the cross section of the yarn.
- The grass yarn according to the invention is preferably of a material selected from the group high density polyethylene (HDPE), polypropylene (PP), polyamide (PA), polyester and low density polyethylene (LDPE). More preferred, the material of the grass yarn is linear low density polyethylene (LLDPE).
- In still another preferred embodiment of the invention the linear mass density of an individual filament is in the range of 50 - 300 tex.
- The invention further relates to an artificial grass covering comprising a plurality of grass yarns according to the invention.
- Preferably, the artificial grass covering according to the invention comprises a support layer to which the grass yarns are arranged.
- These and other features of the invention, will be elucidated in conjunction with the accompanying drawings.
-
Figure 1 shows a cross sectional view of a first embodiment of a grass yarn according to the invention. -
Figure 2 shows a cross sectional view of a second embodiment of a grass yarn according to the invention. -
Figure 3 shows a semi perspective view of an artificial grass covering according to the invention. -
Figure 4A and 4B show other embodiments of grass yarns not according to the invention. - In
figure 1 a cross sectional view of a first embodiment 1 of a grass yarn is shown. The shape of the grass yarn 1 is sickle-shaped. This sickle-shaped grass yarn 1 has a thick center portion with a maximum thickness t1 and two ends tapering intoedges 2. Theconvex side 3 of the sickle-shaped grass yarn 1 is provided withridges 4. Theconcave side 5 of the grass yarn 1 is in this embodiment smooth. - The
ridges 4 have a thickness t2. This thickness t2 is typically 0,5% - 15% of the thickness t1 of the sickle shape. - The
ridges 4 will scatter light such that the grass yarns according to the invention will have a light reflection similar to natural grass. Furthermore the curved sickle-shape provides for a high cross sectional inertia resulting in a relative high stiffness of the grass yarn 1 relative to the maximum thickness t1 of the yarn 1. - In
figure 2 a second embodiment of agrass yarn 10 according to the invention is shown. The shape of thisgrass yarn 10 in cross section is also sickle shaped. In this embodiment both theconvex side 11 as theconcave side 12 are provided withridges 13 in order to reduce light reflection. -
Figure 3 shows an embodiment of an artificial grass covering 20. This grass covering 20 has asupport layer 21, in whichtufts grass yarns 24. Thegrass yarns 24 are shown schematically arranged in thesupport layer 21. - In this figure three
grass yarns 24 pertuft - A typical application of an artificial grass covering according to the invention has the following characteristics:
- Width of a single yarn: 1.1 mm
- Highest thickness t1: 200 µm
- Yarn count individual filament: 195 tex 6 of these filaments are twisted or brought together by wrapping. With wrapping a yarn is wound around the 6 filaments.
- Raw material used for the yarns is LLDPE (linear Low density Polyethylene)
- The total tex count of a combined yarn after wrapping 6 yarns together is 1200 tex.
- This combined yarn is used for tufting the following grass carpet construction:
- Gauge: 5/8'
- Stitches: 14 st/10 cm
- Pile height: 55 mm
- Yarn weight: 1230 g/m2
- It has proven that this product has a very natural look. The yarns do not exhibit any substantial shiny effects. The resulting product is tested according the Lisport test as described in standard NF EN 15306; 'Surfaces for outdoor sport areas - Exposure of synthetic turf to simulated wear'. After 12.200 cycles, no major wear or major yarn splitting was visible. So it is clear that the sickle-shape of the yarns according to this embodiment reach the object of the invention. The ridges also do not increase the tendency for splitting.
-
Figure 4A shows a cross sectional view of an embodiment of ayarn 30 not according to the invention. Thisyarn 30 has an ellipse shaped cross section, being provided with evenly distributedridges 31 at the surface. -
Figure 4B shows a cross sectional view of another embodiment of ayarn 35 not according to the invention. Thisyarn 35 has a rectangular shaped cross section, being provided with evenly distributedridges 36 at the surface.
Claims (9)
- Grass yarn (1;10) for artificial grass coverings being a monofilament, characterized in that the grass yarn has a sickle-shaped cross section, wherein the yarn has a curved cross-section with a thick centre part tapering to both ends.
- Grass yarn (1;10) according to claim 1, comprising a plurality of ridges (4;13) arranged on the surface of the grass yarn.
- Grass yarn (1;10) according to claim 2, wherein the plurality of ridges (4;13) are arranged in longitudinal direction of the grass yarn.
- Grass yarn (1;10) according to claim 2 or 3, wherein the height (t2) of the ridges (4;13) is 0,5% - 10% of the main thickness (t1) of the grass yarn (1;10).
- Grass yarn (1;10) according to any of the preceding claims, wherein the grass yarn (1;10) is of a material selected from the group high density polyethylene (HDPE), polypropylene (PP), polyamide (PA), polyester and low density polyethylene (LDPE).
- Grass yarn (1;10) according to claim 5, wherein the material is linear low density polyethylene. (LLDPE)
- Grass yarn (1;10) according to any of the preceding claims, wherein the linear mass density is in the range of 50 - 300 tex.
- Artificial grass covering (20) comprising a plurality of grass yarns (1;10;24) according to any of the preceding claims.
- Artificial grass covering (20) according to claim 8, comprising a support layer (21) to which the grass yarns (24) are arranged.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09165468.1T ES2442270T3 (en) | 2009-07-14 | 2009-07-14 | Strand of grass |
EP09165468.1A EP2284318B1 (en) | 2009-07-14 | 2009-07-14 | Grass yarn |
PCT/EP2010/060013 WO2011006878A1 (en) | 2009-07-14 | 2010-07-13 | Grass yarn |
US13/383,753 US20120189785A1 (en) | 2009-07-14 | 2010-07-13 | Grass Yarn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09165468.1A EP2284318B1 (en) | 2009-07-14 | 2009-07-14 | Grass yarn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2284318A1 EP2284318A1 (en) | 2011-02-16 |
EP2284318B1 true EP2284318B1 (en) | 2013-12-11 |
Family
ID=40933796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09165468.1A Revoked EP2284318B1 (en) | 2009-07-14 | 2009-07-14 | Grass yarn |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120189785A1 (en) |
EP (1) | EP2284318B1 (en) |
ES (1) | ES2442270T3 (en) |
WO (1) | WO2011006878A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1036418C2 (en) | 2009-01-14 | 2010-07-15 | Ten Cate Thiolon Bv | PLASTIC FIBER AND AN ARTIFICIAL GRASS FIELD WITH SUCH FIBER. |
JP5612114B2 (en) * | 2009-10-30 | 2014-10-22 | エムエーアール.・プロジェクト・エス.アール.エル.MAR. Project S.r.l. | Mixed turf and method for producing the same |
US9005723B2 (en) * | 2010-11-09 | 2015-04-14 | Tarkett Inc. | Fiber for synthetic grass field |
AU2012278394B2 (en) * | 2011-07-01 | 2016-10-27 | Ten Cate Thiolon B.V. | Synthetic fibre and an artificial lawn comprising such a fibre |
US10793973B2 (en) * | 2011-07-01 | 2020-10-06 | Ten Cate Thiolon B.V. | Synthetic fibre and an artificial lawn comprising such a fibre |
ITBO20120150A1 (en) * | 2012-03-21 | 2013-09-22 | Veronica Righini | ELEMENT OF SYNTHETIC GRASS |
EP2894256A1 (en) * | 2014-01-09 | 2015-07-15 | Green Vision Co. Ltd. | Artificial turf system |
US20150354147A1 (en) * | 2014-05-14 | 2015-12-10 | Shaw Industries Group, Inc. | Artificial tuft and associated devices and methods for making same |
EP3480361A1 (en) * | 2017-11-03 | 2019-05-08 | Polytex Sportbeläge Produktions-GmbH | Artificial turf fiber with a non-circular cladding |
EP3480344A1 (en) * | 2017-11-03 | 2019-05-08 | Polytex Sportbeläge Produktions-GmbH | Production of an artificial turf fiber with a non-circular cladding |
KR102013552B1 (en) * | 2019-05-29 | 2019-08-22 | 주식회사 주목씨지알 | A file composition for man-made turf containing elvan and a file for man-made turf having excellent uprightness prepared from the composition |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1166361A (en) * | 1966-01-17 | 1969-10-08 | Monsanto Co | Modified Cross-Section Synthetic Ribbon Yarn and Spinneret for Production thereof. |
US3346916A (en) * | 1966-01-17 | 1967-10-17 | Monsanto Co | Spinneret for production of synthetic grass yarn |
FR2129887A3 (en) * | 1971-03-18 | 1972-11-03 | Sene Anciens Ets | Plastic simulated hair - formed by extrusion and having crescent-shaped cross-section |
JPS5655266Y2 (en) * | 1972-06-14 | 1981-12-23 | ||
NL9301798A (en) * | 1993-10-18 | 1995-05-16 | Desseaux H Tapijtfab | Method for manufacturing yarn for an artificial grass field. |
US6432505B1 (en) * | 1995-10-31 | 2002-08-13 | Southwest Recreational Industries, Inc. | Diamond cross section synthetic turf filament |
US6491991B2 (en) * | 2000-02-14 | 2002-12-10 | Southwest Recreational Industries, Inc. | Artificial turf system |
JP2001248013A (en) * | 2000-03-02 | 2001-09-14 | Toray Ind Inc | Raw fiber for artificial lawn and artificial lawn |
AU2003250972A1 (en) * | 2003-07-14 | 2005-01-28 | Mattex Leisure Industries | Artificial turf filament and artificial turf system |
NL1028224C2 (en) * | 2005-02-08 | 2006-08-09 | Ten Cate Thiolon Bv | Plastic fiber of the monofilament type for use in an artificial grass sports field as well as an artificial grass mat suitable for sports fields provided with such plastic fibers. |
EP1837423A1 (en) * | 2006-03-21 | 2007-09-26 | Domo Zele NV | Synthetic turf resembling a grass field |
EP2024570A1 (en) * | 2006-06-02 | 2009-02-18 | Ten Cate Thiobac B.v. | Systems and methods for providing an improved artificial grass system |
KR100957866B1 (en) * | 2007-10-24 | 2010-05-14 | 코오롱글로텍주식회사 | Modified cross-section Spinneret for artificial turf and spinning device including the same and the fiber prepared using the same |
CN101168858A (en) * | 2007-11-28 | 2008-04-30 | 盛虹集团有限公司 | Filament spraying plate with crescent-shape hole |
KR101103007B1 (en) * | 2008-12-23 | 2012-01-05 | 코오롱글로텍주식회사 | Artificial turf fiber using Poly trimethyleneterephthalate and Structure of composite artificial turf |
NL1036418C2 (en) * | 2009-01-14 | 2010-07-15 | Ten Cate Thiolon Bv | PLASTIC FIBER AND AN ARTIFICIAL GRASS FIELD WITH SUCH FIBER. |
EP2427600B1 (en) * | 2009-05-06 | 2020-01-08 | Saltex OY | Pile yarn filament for artificial turf, artificial turf comprising such filament, and method for making such filament |
ES2336760B1 (en) * | 2009-09-03 | 2011-03-15 | Mondo Tufting S.A. | FIBER FOR ARTIFICIAL LAWN. |
PT2619357T (en) * | 2010-09-23 | 2019-11-29 | Total Res & Technology Feluy | Artificial grass |
US9005723B2 (en) * | 2010-11-09 | 2015-04-14 | Tarkett Inc. | Fiber for synthetic grass field |
US10793973B2 (en) * | 2011-07-01 | 2020-10-06 | Ten Cate Thiolon B.V. | Synthetic fibre and an artificial lawn comprising such a fibre |
KR101357683B1 (en) * | 2013-11-12 | 2014-02-04 | (주)대건씨앤엘 | Artificial turf |
-
2009
- 2009-07-14 ES ES09165468.1T patent/ES2442270T3/en active Active
- 2009-07-14 EP EP09165468.1A patent/EP2284318B1/en not_active Revoked
-
2010
- 2010-07-13 WO PCT/EP2010/060013 patent/WO2011006878A1/en active Application Filing
- 2010-07-13 US US13/383,753 patent/US20120189785A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20120189785A1 (en) | 2012-07-26 |
WO2011006878A1 (en) | 2011-01-20 |
ES2442270T3 (en) | 2014-02-10 |
EP2284318A1 (en) | 2011-02-16 |
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