JP2881354B2 - Non-woven fabric for railway floor - Google Patents
Non-woven fabric for railway floorInfo
- Publication number
- JP2881354B2 JP2881354B2 JP4055809A JP5580992A JP2881354B2 JP 2881354 B2 JP2881354 B2 JP 2881354B2 JP 4055809 A JP4055809 A JP 4055809A JP 5580992 A JP5580992 A JP 5580992A JP 2881354 B2 JP2881354 B2 JP 2881354B2
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- noise
- vibration
- railway
- woven fabric
- 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.)
- Expired - Fee Related
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims description 47
- 239000000835 fiber Substances 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 6
- -1 phosphorus compound Chemical class 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 241001669679 Eleotris Species 0.000 description 5
- 239000002657 fibrous material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000004437 phosphorous atom Chemical group 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920003071 Polyclar® Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Railway Tracks (AREA)
- Nonwoven Fabrics (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉄道の路床に防振や防
音のために敷設される鉄道路床用不織布に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nonwoven fabric for railway floors laid on a railway floor for vibration and sound insulation.
【０００２】[0002]
【従来の技術】従来から、土木資材として不織布、織
布、編布などの繊維資材が多量に使用されている。これ
らは道路、鉄道、滑走路などの路床、路盤の土質安定、
盛土の補強、法面保護、排水、遮水など種々の目的に応
じ、各種の製品が開発されている。2. Description of the Related Art Fiber materials such as nonwoven fabrics, woven fabrics and knitted fabrics have been used in large quantities as civil engineering materials. These include roadbeds, railways, runways and other subgrades, subgrade soil stability,
Various products have been developed for various purposes such as embankment reinforcement, slope protection, drainage, and impermeable.
【０００３】ところで、鉄道の路床においては列車が通
過するごとにレールや枕木から周辺の砂利、盛土、高架
のコンクリート構造体を通し振動が周辺の人家などに及
び、また振動から大きな騒音となり、振動公害として社
会的な問題となっている。[0003] By the way, on the railway floor, every time a train passes, the vibrations pass through the surrounding gravel, embankment, elevated concrete structures from the rails and sleepers, and spread to surrounding houses and the like, and the vibrations cause loud noise. Vibration pollution has become a social problem.
【０００４】[0004]
【発明が解決しようとする課題】そこで従来では、布様
の薄い繊維資材が路床の下に敷設しているが、前記の振
動や騒音の低減という目的に対しては殆んど役立ってい
ない。また、このような繊維資材が砂利の下に敷かれて
いた場合、繊維資材の一部が露出し、鉄道工事、列車が
ブレーキをかけたときの火花や投げ捨てタバコなどを火
源として、ときには繊維資材に着火し、延焼の恐れがあ
った。In the prior art, a cloth-like thin fiber material has been laid under the roadbed, but it has hardly been used for the purpose of reducing the vibration and noise. . Also, if such fiber material is laid under gravel, part of the fiber material will be exposed, and railway construction, sparks when trains are braked, throwing tobacco, etc. will be used as a fire source, sometimes fiber The material ignited and there was a risk of fire spread.
【０００５】本発明はこのような課題を解決するもの
で、振動や騒音を低減する効果に優れ、燃えにくい新規
な鉄道路床用不織布を提供することを目的とするもので
ある。An object of the present invention is to solve the above problems and to provide a novel nonwoven fabric for railway floors which is excellent in reducing vibration and noise and is hardly burnable.
【０００６】[0006]
【課題を解決するための手段】本発明者は、このような
新規な不織布を開発すべく鋭意検討を重ねた結果、本発
明に到達した。Means for Solving the Problems The present inventors have made intensive studies to develop such a new nonwoven fabric, and as a result, have reached the present invention.
【０００７】 即ち本発明は、りん化合物を共重合した
難燃性ポリエステル繊維よりなり、ＬＯＩ値２４以上、
空隙率７５％以上、厚さ３ｍｍ以上であることを特徴と
する鉄道路床用不織布を要旨とするものである。以下、
本発明を詳細に説明する。That is, in the present invention, a phosphorus compound is copolymerized.
Made of flame-retardant polyester fiber, L OI value more than 24,
A nonwoven fabric for railway floors having a porosity of 75% or more and a thickness of 3 mm or more. Less than,
The present invention will be described in detail.
【０００８】 まず主体となる合成繊維はりん化合物を
共重合した難燃性ポリエステル繊維であり不織布とした
ときのＬＯＩ値が２４以上となるものである。物理的強
度、耐候性などの見地からりん化合物を共重合した難燃
性ポリエステル繊維を用いる必要がある。ＬＯＩ値が２
４未満であると、難燃性が不足するので適当でない。First, the main synthetic fiber contains a phosphorus compound.
It is a copolymerized flame-retardant polyester fiber having an LOI value of 24 or more when formed into a nonwoven fabric . It is necessary to use a flame-retardant polyester fiber obtained by copolymerizing a phosphorus compound from the viewpoints of physical strength and weather resistance. LOI value is 2
If it is less than 4, the flame retardancy is insufficient, so that it is not suitable.
【０００９】不織布の空隙率は７５％以上とする必要が
ある。空隙率が７５％未満であると、不織布が固くなり
すぎ、振動が伝わりやすくなり好ましくない。また、不
織布の厚さは３mm以上とする必要がある。上限は特に限
定しないが、ある程度効果が飽和することと敷設工事の
作業性が低下すること、不織布の製造コストが嵩むこと
から３０mm程度迄とするのが好ましい。厚さが３mm未満
であると、衝撃を吸収する作用が少なく騒音や振動を低
減する効果が不充分であり、好ましくない。The porosity of the nonwoven fabric must be 75% or more. If the porosity is less than 75%, the nonwoven fabric becomes too hard, and vibration is easily transmitted, which is not preferable. Further, the thickness of the nonwoven fabric needs to be 3 mm or more. The upper limit is not particularly limited, but is preferably about 30 mm because the effect is saturated to some extent, the workability of the laying work is reduced, and the manufacturing cost of the nonwoven fabric is increased. If the thickness is less than 3 mm, the effect of absorbing shock is small and the effect of reducing noise and vibration is insufficient, which is not preferable.
【００１０】不織布は長繊維からなるスパンボンド不織
布であっても、短繊維からなる乾式不織布であっても差
し支えない。しかしながら、厚さ６〜７mm以上の不織布
とする場合、スパンボンド不織布では製造することが難
しいので、スパンボンド不織布の上に乾式不織布を載せ
て、ニードルパンチで絡合させたり、乾式不織布のみで
構成するのが適当である。これらの不織布は樹脂バイン
ダーや繊維状バインダーを用いて主体となる合成繊維を
互いに接着したものであっても、ニードルパンチで機械
的に交絡させた不織布であっても差し支えないが、不織
布を敷設するときの作業に耐える程度の引っ張り、引き
裂き強さは要求される。The nonwoven fabric may be a spunbond nonwoven fabric made of long fibers or a dry nonwoven fabric made of short fibers. However, in the case of a non-woven fabric having a thickness of 6 to 7 mm or more, it is difficult to manufacture with a spun-bonded non-woven fabric. It is appropriate to do. These non-woven fabrics may be those obtained by bonding the main synthetic fibers to each other using a resin binder or a fibrous binder, or may be non-woven fabrics that are mechanically entangled with a needle punch. Tension and tear strength enough to withstand the occasional work is required.
【００１１】 合成繊維のデニールは、不織布とすると
きの作業上、２〜２００デニールとすることが必要であ
る。また、不織布は線路の枕木の下およびその近辺から
路床の両側に亘る迄に適宜敷設され、その上に砂利が敷
かれて使用され、その一部が砂利の間から露出すること
があるため、美観上および耐候性の見地から黒、茶、青
などの顔料で原液着色されたものを用いるのが好まし
い。The denier of the synthetic fiber needs to be 2 to 200 denier for the operation of forming a nonwoven fabric. In addition, the non-woven fabric is laid appropriately from under and around the railroad crossties to both sides of the roadbed, gravel is laid thereon and used, and a part thereof may be exposed from between the gravel, From the standpoint of aesthetics and weather resistance, it is preferable to use those which are undiluted with pigments such as black, brown and blue.
【００１２】図１に本発明の不織布を鉄道路床に敷設し
た状態を示し、１は高架のコンクリートで、このコンク
リート１の上全面に本発明の不織布２が敷設され、この
不織布２の上に枕木３が固定され、枕木３と枕木３との
間およびコンクリート１の肩部における不織布２の上に
は砂利４が敷かれている。５はコンクリート１の肩部に
形成された溝、６は枕木３の上に設けられた線路であ
る。FIG. 1 shows a state in which a nonwoven fabric of the present invention is laid on a railway road floor. Reference numeral 1 denotes an elevated concrete, and a nonwoven fabric 2 of the present invention is laid on the entire surface of the concrete 1. The sleeper 3 is fixed, and gravel 4 is laid between the sleeper 3 and the sleeper 3 and on the nonwoven fabric 2 at the shoulder of the concrete 1. Reference numeral 5 denotes a groove formed on the shoulder of the concrete 1, and reference numeral 6 denotes a track provided on the sleeper 3.
【００１３】[0013]
【作用】本発明の不織布は鉄道路床に敷設したときに、
衝撃吸収材となって列車通過時の振動や騒音を低減する
ことができる。また、この不織布は空隙があるので透水
性が良好で雨水が速やかに排出され、路盤噴泥の発生を
防止するといった作用もある。また着火しても、ＬＯＩ
値２４以上の難燃性繊維を用いているため、燃え広がり
難い。従って、たとえ不織布が露出していても線路工事
やブレーキの火花、投げ捨てタバコといった火源に対し
て安全である。When the nonwoven fabric of the present invention is laid on a railway road floor,
As a shock absorbing material, vibration and noise when passing through the train can be reduced. In addition, since this nonwoven fabric has voids, the water permeability is good, and rainwater is quickly discharged, and the nonwoven fabric has an effect of preventing generation of roadbed mud. Even if it ignites, LOI
Since flame-retardant fibers having a value of 24 or more are used, it is difficult to spread. Therefore, even if the nonwoven fabric is exposed, it is safe against fire sources such as track construction, sparks of brakes, and tossed tobacco.
【００１４】[0014]
【実施例】以下、実施例によって本発明を詳しく説明す
るが、本発明はこれらによって限定されるものではな
い。なお、実施例に記述した諸物性の評価法は、次のと
おりである。EXAMPLES The present invention will be described below in detail with reference to examples, but the present invention is not limited to these examples. The methods for evaluating various physical properties described in the examples are as follows.
【００１５】(1) ＬＯＩ値 ＪＩＳ Ｋ ７２０１に規定された酸素指数法による。 (2) 空隙率 不織布の目付Ａ（ｇ／ｍ2 ）、厚さＢ（mm）を測定し、
繊維を構成するポリマーの密度Ｃ（ｇ／ｃｍ3 ）（ポリ
エステルの場合は１．３８）を用いて次式に従って算出
する。 空隙率（％）＝（１−Ａ×１０-3／Ｂ×Ｃ）×１００ (3) 振動、騒音 鉄道線路の路床全面に亘って砂利を除いて不織布を敷設
し、しかる後に不織布の上に砂利をかぶせる工事を長さ
１００ｍの区間、行なう。その後、列車通過時の振動と
騒音を線路脇の一定地点の路上に設置した地震計、騒音
計で測定し、地面の振動幅および騒音として求めた。(1) LOI value According to the oxygen index method specified in JIS K7201. (2) Porosity Measure the basis weight A (g / m 2 ) and thickness B (mm) of the nonwoven fabric,
It is calculated according to the following equation using the density C (g / cm 3 ) of the polymer constituting the fiber (1.38 in the case of polyester). Porosity (%) = (1−A × 10 −3 / B × C) × 100 (3) Vibration and noise A non-woven fabric is laid over the entire roadbed of the railway line except for gravel, and then on the non-woven fabric Construction work to cover the area with gravel will be carried out for a section of 100m in length. After that, the vibration and noise when passing through the train were measured with a seismometer and a noise meter installed on the road at a certain point beside the track, and were obtained as the vibration width and noise of the ground.
【００１６】実施例１ ユニチカ株式会社製の難燃性ポリエステル（登録商標ホ
ノガード、リン化合物をリン原子として５０００ｐｐｍ
となるように共重合したポリエステル）を用い、常法に
て単糸繊度２．３デニール，目付４５０ｇ／ｍ2 のスパ
ンボンド不織布を調製した。これにニードルパンチによ
る交絡を施し、厚さ５mm，空隙率９３％の不織布を得
た。この不織布のＬＯＩ値は２９であり、マッチで着火
しても燃え広がらないものであった。この不織布を用
い、前記評価法の(3) の欄に記載した工事を行なって効
果を測定した。Example 1 Flame-retardant polyester manufactured by Unitika Co., Ltd. (trade name: Honogard, 5000 ppm of phosphorus compound as phosphorus atom)
A polyester spunbonded nonwoven fabric having a single-fiber fineness of 2.3 denier and a basis weight of 450 g / m 2 was prepared by a conventional method. This was entangled with a needle punch to obtain a nonwoven fabric having a thickness of 5 mm and a porosity of 93%. The LOI value of this nonwoven fabric was 29, and it did not spread even when ignited in a match. Using this nonwoven fabric, the construction described in the section (3) of the above evaluation method was performed, and the effect was measured.
【００１７】工事前の列車５回通過時の地面の振動幅の
平均値３．１mm、騒音の平均値８７ホンに対し、工事後
は地面の振動幅２．４mm、騒音平均値７９ホンで、振
動、騒音の低減効果が認められた。The average vibration width of the ground after passing the train 5 times before construction is 3.1 mm and the average value of the noise is 87 phons. After the construction, the vibration width of the ground is 2.4 mm and the average noise value is 79 phons. Vibration and noise reduction effects were observed.
【００１８】比較例１ 実施例１においてスパンボンド不織布をさらにローラー
圧着することにより厚さ１．２mm、空隙率７３％とする
こと以外は実施例１と同様にして実施した。工事後の地
面の振動幅３．０mm、騒音平均値８５ホンで、振動、騒
音の低減効果は不十分であった。Comparative Example 1 The procedure of Example 1 was repeated, except that the spunbonded nonwoven fabric was further pressure-bonded with a roller to a thickness of 1.2 mm and a porosity of 73%. After the construction, the vibration width of the ground was 3.0 mm and the noise average value was 85 phones, and the effect of reducing vibration and noise was insufficient.
【００１９】 実施例２ ユニチカ株式会社製でカーボンの黒原着の難燃性ポリエ
ステル短繊維（リン化合物をリン原子として５０００ｐ
ｐｍとなるように共重合したポリエステル、６デニー
ル、５１ｍｍ切断長）およびユニチカ株式会社製の熱融
着ポリエステル繊維（登録商標メルティ、４デニール、
５１ｍｍ切断長）を７０／３０の割合にカードで混綿し
た後、１５０℃で１分間、厚さを規制しながら熱処理
し、目付７００ｇ／ｍ２、厚さ２０ｍｍの短繊維不織布
を得た。この不織布のＬＯＩ値は２８であり、マッチで
着火しても燃え広がらないものであった。この不織布を
用い、実施例１と同様に工事をしたところ、工事後は地
面の振動幅２．２ｍｍ、騒音平均値７８ホンで、騒音、
振動の低減効果が認められた。Example 2 Flame-retardant polyester staple fiber of carbon black deposited by Unitika Co., Ltd. ( 5000p with a phosphorus compound as a phosphorus atom)
pm, 6 denier, 51 mm cut length) and heat-fused polyester fiber manufactured by Unitika Co., Ltd. (Melty, 4 denier,
(Cut length of 51 mm) was mixed with a card at a ratio of 70/30, and then heat-treated at 150 ° C. for 1 minute while regulating the thickness to obtain a short fiber nonwoven fabric having a basis weight of 700 g / m 2 and a thickness of 20 mm. The LOI value of this nonwoven fabric was 28, and it did not spread even when ignited in a match. Using this nonwoven fabric, construction was performed in the same manner as in Example 1. After the construction, the ground vibration width was 2.2 mm, and the average noise was 78 phones.
The effect of reducing vibration was observed.
【００２０】実施例３ ポリクラール短繊維（４デニール、５１mm切断長）およ
び上記熱融着ポリエステル繊維（登録商標メルティ、４
デニール、５１mm切断長）を７０／３０の割合にカード
で混綿した後、１５０℃で１分間、厚さを規制しながら
熱処理し、目付７００ｇ／ｍ2 、厚さ２０mmの短繊維不
織布を得た。この不織布のＬＯＩ値は３１であり、マッ
チで着火しても燃え広がらないものであった。この不織
布を用い、実施例１と同様に工事をしたところ、工事後
は地面の振動幅２．２mm、騒音平均値７８ホンで、騒
音、振動の低減効果が認められた。Example 3 Polyclar short fibers (4 denier, 51 mm cut length) and the above heat-fused polyester fibers (Melty®, 4
(Denier, 51 mm cut length) was mixed with a card at a ratio of 70/30, and then heat-treated at 150 ° C. for 1 minute while controlling the thickness to obtain a short fiber nonwoven fabric having a basis weight of 700 g / m 2 and a thickness of 20 mm. . The LOI value of this nonwoven fabric was 31, and it did not spread even when ignited in a match. Using this nonwoven fabric, construction was performed in the same manner as in Example 1. After the construction, the effect of reducing noise and vibration was recognized with a ground vibration width of 2.2 mm and an average noise of 78 phones.
【００２１】[0021]
【発明の効果】以上のように、本発明の不織布は燃えに
くくて衝撃吸収性があるので、鉄道路床用不織布として
用いたとき、火源があっても安全であり、また列車通過
時の振動、騒音の低減効果が得られる。As described above, the nonwoven fabric of the present invention is hardly flammable and has a shock absorbing property. Therefore, when used as a nonwoven fabric for railway floors, it is safe even in the presence of a fire source. Vibration and noise can be reduced.
【図１】本発明の不織布を鉄道路床用不織布として用い
た状態を示す断面図である。FIG. 1 is a cross-sectional view showing a state in which the nonwoven fabric of the present invention is used as a nonwoven fabric for a railway floor.
１ コンクリート ２ 不織布 ３ 枕木 ４ 砂利 ５ 溝 ６ 線路 DESCRIPTION OF SYMBOLS 1 Concrete 2 Nonwoven fabric 3 Sleeper 4 Gravel 5 Groove 6 Track
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−182277（ＪＰ，Ａ) 特開 平１−174661（ＪＰ，Ａ) 特開 昭50−65648（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) D04H 1/00 - 18/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-182277 (JP, A) JP-A-1-174661 (JP, A) JP-A-50-65648 (JP, A) (58) Investigation Field (Int.Cl. 6 , DB name) D04H 1/00-18/00
Claims (1)
テルの２〜２００デニールの繊維を絡合または接着して
なり、ＬＯＩ値が２４以上、空隙率７５％以上、厚さ３
ｍｍ以上である、鉄道路床用不織布。1. A flame-retardant polyester obtained by copolymerizing a phosphorus compound.
Entangle or glue 2 to 200 denier fiber
Becomes, L OI value is 24 or more, a porosity of 75% or more, a thickness of 3
mm non-woven fabric for railway floors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4055809A JP2881354B2 (en) | 1992-03-16 | 1992-03-16 | Non-woven fabric for railway floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4055809A JP2881354B2 (en) | 1992-03-16 | 1992-03-16 | Non-woven fabric for railway floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05263352A JPH05263352A (en) | 1993-10-12 |
| JP2881354B2 true JP2881354B2 (en) | 1999-04-12 |
Family
ID=13009257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4055809A Expired - Fee Related JP2881354B2 (en) | 1992-03-16 | 1992-03-16 | Non-woven fabric for railway floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2881354B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3530451A1 (en) * | 2018-02-27 | 2019-08-28 | Gerflor | Multilayer structure for forming a floor covering |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5065648A (en) * | 1973-10-18 | 1975-06-03 | ||
| JPH01174661A (en) * | 1987-12-29 | 1989-07-11 | Sekisui Chem Co Ltd | Nonwoven fiber mat form |
| JPH03182277A (en) * | 1989-12-12 | 1991-08-08 | Toray Living Kk | Mat, and laying and constructing method thereof |
-
1992
- 1992-03-16 JP JP4055809A patent/JP2881354B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3530451A1 (en) * | 2018-02-27 | 2019-08-28 | Gerflor | Multilayer structure for forming a floor covering |
| FR3078285A1 (en) * | 2018-02-27 | 2019-08-30 | Gerflor | MULTILAYER STRUCTURE FOR REALIZING A FLOOR COATING |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05263352A (en) | 1993-10-12 |
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