JPH08290511A - Laminated sheet - Google Patents
Laminated sheetInfo
- Publication number
- JPH08290511A JPH08290511A JP7096991A JP9699195A JPH08290511A JP H08290511 A JPH08290511 A JP H08290511A JP 7096991 A JP7096991 A JP 7096991A JP 9699195 A JP9699195 A JP 9699195A JP H08290511 A JPH08290511 A JP H08290511A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- woven fabric
- polyurethane sheet
- pulp
- laminated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 35
- 239000004814 polyurethane Substances 0.000 claims abstract description 28
- 229920002635 polyurethane Polymers 0.000 claims abstract description 28
- 238000007731 hot pressing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 9
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 238000003825 pressing Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000001788 irregular Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 20
- 239000006260 foam Substances 0.000 description 12
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 238000005187 foaming Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011496 polyurethane foam Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- -1 polyol compound Chemical class 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002937 thermal insulation foam Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は作業性の良好な梱包材、
断熱材、防振材及び防音材等に優れた効果を有し、且
つ、リサイクルしやすい積層シ−トに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing material having good workability,
The present invention relates to a laminated sheet which has excellent effects on a heat insulating material, a vibration damping material, a sound insulating material, and the like, and which is easy to recycle.
【０００２】[0002]
【従来の技術】従来より発泡ポリウレタンシ−トを梱包
材、断熱材、防振材及び防音材等に使用することは広く
知られている。そして、この発泡ポリウレタンシ−トは
使用に当って、単一層として用いるのみではなく、目的
と用途に応じて他のシ−ト材と、或いは、発泡倍率の異
なった同質の発泡シ−トを積層する等の種々の工夫が行
われている。例えば、床材の裏面に発泡倍率３〜１０倍
の軟質高発泡層と凸部を有する発泡倍率１．５〜３倍未
満の軟質低発泡層を順次積層して防音性に優れた建材と
することが知られており（実開昭５０−４９９１７号参
照）、また、木質板下面に複数層よりなる遮音用発泡体
が貼着され、隣接する発泡層の発泡倍率を異にした床材
が知られている（実開昭６１−４７３３９号参照）。2. Description of the Related Art It has been widely known that a foamed polyurethane sheet is used as a packing material, a heat insulating material, a vibration damping material, a soundproofing material and the like. When this foamed polyurethane sheet is used, not only is it used as a single layer, but also other sheet materials or homogeneous foamed sheets having different expansion ratios are used depending on the purpose and application. Various devices such as stacking have been made. For example, a soft high-foam layer having a foaming ratio of 3 to 10 times and a soft low-foaming layer having a convex part and having a foaming ratio of 1.5 to less than 3 times are sequentially laminated on the back surface of the floor material to obtain a building material having excellent soundproofing properties. It is known (see Japanese Utility Model Publication No. 50-49917) that a sound insulation foam body composed of a plurality of layers is attached to the lower surface of a wooden board, and a flooring material having different foaming ratios of adjacent foam layers is used. It is known (see Japanese Utility Model Publication No. 61-47339).
【０００３】更に、防音性能と所要の圧縮強度を付与さ
せる目的で発泡倍率の高い発泡合成樹脂シ−トの裏面に
凹凸模様を有する合成樹脂シ−トを積層接着した緩衝材
或いは防音床材が知られている（特開平４−３５１５３
８号参照）。Further, for the purpose of imparting soundproofing performance and required compressive strength, a cushioning material or soundproofing floor material in which a synthetic resin sheet having an uneven pattern is laminated and adhered on the back surface of a foamed synthetic resin sheet having a high expansion ratio is provided. Known (Japanese Patent Laid-Open No. 4-35153)
(See No. 8).
【０００４】他方、発泡ポリウレタンシ−トは摩擦係数
が大きく、このため例えば発泡ポリウレタンシ−トを有
する床材を床面に施工するときの作業性が悪いという欠
点があった。On the other hand, the foamed polyurethane sheet has a large friction coefficient, and therefore has a drawback that workability is poor when a floor material having the foamed polyurethane sheet is applied to a floor surface, for example.
【０００５】[0005]
【発明が解決しようとする課題】そこで、本発明者は、
上記の欠点を改良すべき種々検討した結果、発泡ポリウ
レタンシ−トの表裏面を異なった凹凸模様に熱プレスす
ることで優れた防音、防振効果を発揮でき、さらに、こ
れらの片面にパルプ系の不織布を接合することによって
この不織布が滑りやすくなるので、施行時の作業性を向
上できることを見出し、本発明を完成したもので、本発
明は、製造しやすく、作業性の良好な、特に防音性、緩
衝性に優れた積層シ−トを提供することを目的とする。Therefore, the inventor of the present invention
As a result of various studies to improve the above-mentioned drawbacks, excellent soundproofing and vibrationproofing effects can be exhibited by hot-pressing the front and back surfaces of the foamed polyurethane sheet into different concave and convex patterns. This non-woven fabric is made slippery by joining the non-woven fabric of the above, and it has been found that the workability at the time of execution can be improved, and the present invention has been completed.The present invention is easy to manufacture and has good workability, particularly soundproofing. The purpose of the present invention is to provide a laminated sheet having excellent properties and cushioning properties.
【０００６】[0006]
【課題を解決するための手段】本発明の要旨は、軟質ポ
リウレタンシ−トとパルプ不織布とを熱プレスにより一
体に接合した表裏面に異なった凹凸模様を有する積層ポ
リウレタンシ−トであり、また、凹凸模様を異にする２
つの金型の間に軟質ポリウレタンと不織布とを重ねて加
熱加圧して両者を一体接合することを特徴とする積層ポ
リウレタンシ−トの製造方法である。The gist of the present invention is a laminated polyurethane sheet having different uneven patterns on the front and back surfaces, wherein a soft polyurethane sheet and a pulp nonwoven fabric are integrally joined by hot pressing, and , Different patterns of unevenness 2
A method for producing a laminated polyurethane sheet, characterized in that a soft polyurethane and a non-woven fabric are superposed between two molds and heated and pressed to integrally join the two.
【０００７】即ち、本発明の積層シ−トは一度軟質発泡
ポリウレタンを製造し、これを適宜スライスしたシ−ト
にパルプ糸不織布を接合したのでパルプ系不織布の面で
の摩擦係数は小さく、特に建築物の床下防音、防振材と
して施行時にその作業性を向上することができる。更
に、両者の積層に際しては、新たに接着剤を使用するこ
と無く、該ポリウレタンシ−トの表裏面に凹凸模様を付
するための熱プレスと同時に一体接合したので接着剤が
発泡ポリウレタンシ−ト内や不織布内に浸透することが
なく、緩衝性及び防音性の低下を生じることがない。ま
た、接合は単に熱プレスのみで行っているので容易に剥
離することができ、従ってリサイクルが容易となる。That is, since the laminated sheet of the present invention is produced by making soft foamed polyurethane once and joining the pulp yarn non-woven fabric to a sheet obtained by appropriately slicing this, the friction coefficient of the pulp-based non-woven fabric surface is small. It can improve the workability of a building under the floor as a soundproofing and vibration isolating material. Further, when laminating the two, the polyurethane foam sheet was integrally joined at the same time as hot pressing for forming an uneven pattern on the front and back surfaces of the polyurethane sheet without using a new adhesive agent, so that the polyurethane foam sheet was made of an adhesive. It does not penetrate into the interior or into the non-woven fabric, and the buffering property and the soundproofing property are not deteriorated. Further, since the joining is performed only by hot pressing, it can be easily peeled off, and therefore the recycling becomes easy.
【０００８】先に示した特開平４−３５１５３８号公報
に開示されている緩衝材には不織布を貼着することが記
載されている。しかし、該公報に記載されている緩衝材
は凹凸模様を有する合成樹脂と凹凸模様のない該発泡凸
部より発泡倍率の高い発泡合成樹脂シ−トを接着積層し
た緩衝材はそれぞれ発泡シ−トを別個に製造し、その
後、接着剤を使用して積層するものであって、作業工程
数が多く、コスト高であるばかりでなく、接着剤が発泡
シ−トや不織布に滲みこみ易く緩衝性の低下を生じる等
の欠点がある。また、このような緩衝材では不織布を貼
着するには少なくとも一面は平滑な面にする必要があ
り、平滑な面以外に不織布を貼着することは困難であ
る。即ち緩衝材の両面に凹凸を付けた場合には後工程に
て不織布を良好に貼着することができないという問題が
あった。The above-mentioned Japanese Patent Laid-Open Publication No. 4-351538 discloses that a non-woven fabric is attached to the cushioning material. However, the cushioning material described in this publication is a foamed sheet in which a synthetic resin having a concavo-convex pattern and a foamed synthetic resin sheet having a higher expansion ratio than the foamed convex portion having no concavo-convex pattern are adhesively laminated. Is manufactured separately, and then laminated using an adhesive, which not only involves a large number of working steps and is costly, but the adhesive easily bleeds into the foamed sheet or non-woven fabric and has a cushioning property. There is a drawback such as a decrease in Further, with such a cushioning material, at least one surface needs to be a smooth surface in order to adhere the non-woven fabric, and it is difficult to adhere the non-woven fabric to other than the smooth surface. That is, when unevenness is provided on both sides of the cushioning material, there is a problem that the non-woven fabric cannot be properly attached in the subsequent step.
【０００９】これに対し、本発明ではいったん軟質の発
泡ポリウレタンシ−トを製造し、もしくは、スライスし
て発泡ポリウレタンをシ−ト状とした後、これと耐熱性
に優れたパルプ系不織布を積層して凹凸模様を異にする
２つの金型の間に載置して加熱、加圧することによって
ポリウレタンシ−トに凹凸模様を加工すると同時に、該
不織布を一体に接合したものであるので上記の接着剤を
使用した場合に比して緩衝性が低下することがなく、し
かも必要な時には両者を容易に剥離することができるの
でリサイクルしやすいという利点をも有する。On the other hand, in the present invention, a soft polyurethane foam sheet is once produced or sliced into a sheet of polyurethane foam, and this is laminated with a pulp-based nonwoven fabric having excellent heat resistance. Then, the polyurethane sheet is placed between two dies having different uneven patterns to heat and pressurize the uneven pattern on the polyurethane sheet, and at the same time, the nonwoven fabric is integrally bonded. As compared with the case where an adhesive is used, the buffering property is not deteriorated, and since both can be easily peeled off when necessary, there is an advantage that recycling is easy.
【００１０】本発明において使用する発泡ポリウレタン
シ−トの発泡倍率としては４０〜６０倍であり、また、
この発泡ポリウレタンシ−トの表裏には異なる凹凸模様
をプレス成形によって設けることになるので表裏は異な
る発泡倍率とすることができ、このため振動、衝撃等の
強弱に適応した性能の異なる発泡ポリウレタンシ−トを
積層することなく、１つの発泡層で効率よく吸収するこ
とができる。The foaming ratio of the foamed polyurethane sheet used in the present invention is 40 to 60 times, and
Since different convex and concave patterns are provided on the front and back sides of this foamed polyurethane sheet by press molding, different foaming ratios can be set on the front and back sides. Therefore, the foamed polyurethane sheet having different performances adapted to the strength and weakness such as vibration and impact. -It is possible to efficiently absorb with one foam layer without laminating the grate.
【００１１】発泡ポリウレタンシ−トに貼着するパルプ
系不織布は木材パルプを主原料とし、これを乾式法ある
いは湿式法の何れによって製造したものでもよいが、好
ましくは乾式法によって得たものが柔軟性等の観点より
好ましい。そしてその厚さ０．１〜２．０ｍｍ程度のも
のである。また、新たに接着剤を使用せずプレス成形す
る際に一体化するので、発泡ウレタンをプレス成形する
ための温度２００〜２４０℃で溶けない不織布が必要と
される。これには、材質としてパルプを使用した不織布
が必要である。The pulp-based non-woven fabric to be attached to the foamed polyurethane sheet may be made of wood pulp as a main raw material and may be produced by either a dry method or a wet method. However, a material obtained by the dry method is preferably flexible. It is preferable from the viewpoint of sex and the like. The thickness is about 0.1 to 2.0 mm. Further, since it is integrated when newly press-molding without using an adhesive, a nonwoven fabric which does not melt at a temperature of 200 to 240 ° C. for press-molding urethane foam is required. This requires a non-woven fabric using pulp as the material.
【００１２】この両者を接合一体化するに際しては、凹
凸模様を異にする２つの金型を使用し、この金型間に発
泡ポリウレタンシ−トとパルプ系不織布を載置して加熱
加圧する。その条件としては得られる積層シ−トの厚み
によって異なるが、例えば５〜５０ｍｍの発泡ウレタン
シ−トにパルプ系不織布を合わせ３〜２０ｍｍ程度の積
層シ−トを得る場合、金型の加熱温度は２００〜２４０
℃で、加圧圧力は、５０〜１５０ｋｇ／ｃｍ2で時間
は、１〜５分が好ましい。また、加熱温度が２００℃未
満、圧力５０ｋｇ／ｃｍ2未満では、表裏面に良好な凹
凸模様が成形されず好ましくない。In joining and integrating both of them, two molds having different concavo-convex patterns are used, and the foamed polyurethane sheet and the pulp-based nonwoven fabric are placed between the molds and heated and pressed. The conditions vary depending on the thickness of the laminated sheet obtained, but for example, when a foamed urethane sheet of 5 to 50 mm is combined with a pulp-based nonwoven fabric to obtain a laminated sheet of about 3 to 20 mm, the heating temperature of the mold is 200-240
The pressure is preferably 50 to 150 kg / cm 2 and the time is preferably 1 to 5 minutes. Further, if the heating temperature is less than 200 ° C. and the pressure is less than 50 kg / cm 2, it is not preferable because a good uneven pattern is not formed on the front and back surfaces.
【００１３】得られた積層シ−トを図示する。図１は積
層シ−トの断面図であり、図２はその斜視図である。図
において発泡ポリウレタンシ−ト１とパルプ系不織布２
とは接着剤を使用することなく加熱圧着されている。発
泡ポリウレタンシ−ト１の表面には連続しない規則的な
凹部模様を有し、また、パルプ系不織布２には波形状の
模様を有する。この発泡シ−トの模様は一例であって、
この模様に限定されるものではなく、適宜に決定すると
良い。The resulting laminated sheet is illustrated. FIG. 1 is a cross-sectional view of the laminated sheet, and FIG. 2 is a perspective view thereof. In the figure, foamed polyurethane sheet 1 and pulp-based nonwoven fabric 2
And are thermocompression bonded without using an adhesive. The foamed polyurethane sheet 1 has a regular pattern of recesses which is not continuous, and the pulp-based nonwoven fabric 2 has a wavy pattern. The pattern of this foam sheet is an example,
The pattern is not limited to this, and may be appropriately determined.
【００１４】[0014]
【実施例及び比較例】以下、実施例をもって、更に具体
的に本発明について説明する。 実施例 イソチアネ−ト化合物にポリオ−ル化合物を加え、これ
に発泡剤、触媒、整泡剤等を加えて発泡倍率約４２倍の
軟質発泡ウレタンブロック（６００×１０００×２００
０ｍｍ）を得た。得られた軟質発泡ウレタンを６００×
１０００×１２（ｍｍ）に自動スプリクタ−カット機で
スライスカットして、発泡ウレタンシ−トを得た。ま
た、同様にカットしたパルプ系不織布（商品名：キノク
ロス（本州製紙社製））厚み１ｍｍを上記の発泡ウレタ
ンシ−トに重ね合わせ、プレス機にセットした。プレス
機は、上型、下型に異なる凹凸模様を有する上下一組み
の型を備えたもので、プレス温度２４０℃、プレス圧力
１００ｋｇ／ｃｍ2で２分間加熱加圧プレスした。得ら
れたシ−トは、図２で示すような表裏に異なる凹凸模様
を有する一面には不織布が積層固定されたシ−トで、こ
の不織布面では滑りやすいものであった。また、この積
層シ−トは、手で容易に剥離することができた。 比較例１ 不織布として、ポリエステル系樹脂のものを使用した以
外は、実施例と同様に加熱加圧プレス成型を行った。し
かし、得られた積層シ−トは不織布が部分的に溶けてプ
レス金型にひっついて良好なシ−トは得られなかった。 比較例２ プレス温度を１５０℃としてこれ以外は比較例１と同様
に行ったが、表裏面とも凹凸模様がはっきりしないもの
となり、良好なシ−トは得られなかった。EXAMPLES AND COMPARATIVE EXAMPLES The present invention will be described in more detail with reference to the following examples. EXAMPLE A soft urethane block (600 × 1000 × 200) having a foaming ratio of about 42 times was prepared by adding a polyol compound to an isothiocyanate compound and adding a foaming agent, a catalyst, a foam stabilizer, and the like.
0 mm) was obtained. The soft urethane foam obtained is 600 x
Slice cut into 1000 × 12 (mm) with an automatic splitter-cutting machine to obtain a urethane foam sheet. A similarly cut pulp-based non-woven fabric (trade name: Kinocloth (manufactured by Honshu Paper Co., Ltd.)) having a thickness of 1 mm was placed on the urethane foam sheet and set on a pressing machine. The press was equipped with a pair of upper and lower molds having different concave and convex patterns on the upper mold and the lower mold, and was heated and pressed at a pressing temperature of 240 ° C. and a pressing pressure of 100 kg / cm 2 for 2 minutes. The obtained sheet was a sheet in which a nonwoven fabric was laminated and fixed on one surface having different uneven patterns on the front and back as shown in FIG. 2, and the nonwoven fabric surface was slippery. Further, this laminated sheet could be easily peeled off by hand. Comparative Example 1 Heat and pressure press molding was performed in the same manner as in Example except that a polyester resin was used as the nonwoven fabric. However, in the obtained laminated sheet, the non-woven fabric was partially melted and stuck to the press die, and a good sheet was not obtained. Comparative Example 2 The same procedure as in Comparative Example 1 was carried out except that the pressing temperature was 150 ° C., but the uneven pattern was not clear on the front and back surfaces, and a good sheet was not obtained.
【００１５】[0015]
【発明の効果】以上述べたように、本発明は軟質発泡ウ
レタンシ−トの表裏に異なる凹凸を（加熱加圧熱）プレ
ス成形することで、容易に設けることができる。このよ
うに異なる凹凸模様を設けたことで表裏で異なる発泡倍
率とすることができるので、振動、衝撃等の強弱に適応
した性能を２層積層することなく、一つの発泡層で効率
よく吸収することができる。さらに、前記のプレス成形
時に、パルプ系不織布を同時に積層することができるの
で、床の防振、防音材として施工する場合（主に室内用
表面板材とコンクリ−ト床の間に施工する）に、軟質発
泡ウレタンシ−トでは床面の板材との滑りが悪く施工し
にくかったものを、不織布を積層することで滑りやすく
なり施行性を向上する事が出来る。As described above, the present invention can be easily provided by press-molding (heating and pressing heat) different concaves and convexes on the front and back of the soft urethane foam sheet. By providing different uneven patterns in this way, it is possible to have different expansion ratios on the front and back sides, so that one foam layer can efficiently absorb the performance adapted to the strength and weakness of vibration, shock, etc. without stacking two layers. be able to. Further, since pulp-based non-woven fabric can be laminated at the same time during the above-mentioned press molding, when it is applied as a floor vibration-isolating and sound-insulating material (mainly between the indoor surface plate material and the concrete floor), it is soft. The urethane foam sheet, which has a poor sliding property with the plate material on the floor surface and is difficult to construct, can be made slippery by laminating a non-woven fabric to improve the workability.
【図１】本発明にかかる積層シ−トの層構成を示した断
面図である。FIG. 1 is a sectional view showing a layer structure of a laminated sheet according to the present invention.
【図２】本発明にかかる積層シ−トの斜視部である。FIG. 2 is a perspective view of a laminated sheet according to the present invention.
１ 発泡ポリウレタンシ−ト ２ パルプ系不織布
３ 凹部1 Foamed polyurethane sheet 2 Pulp-based nonwoven fabric 3 Recess
Claims (2)
とを熱プレスにより一体に接合した表裏面に異なった凹
凸模様を有する積層シ−ト。1. A laminated sheet having a different concavo-convex pattern on the front and back surfaces in which a soft polyurethane sheet and a pulp nonwoven fabric are integrally joined by hot pressing.
ポリウレタンと不織布とを重ねて加熱加圧して両者を一
体接合することを特徴とする積層シ−トの製造方法。2. A method for producing a laminated sheet, characterized in that a soft polyurethane and a non-woven fabric are superposed between two molds having different concave and convex patterns and heated and pressed to integrally join the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7096991A JPH08290511A (en) | 1995-04-21 | 1995-04-21 | Laminated sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7096991A JPH08290511A (en) | 1995-04-21 | 1995-04-21 | Laminated sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08290511A true JPH08290511A (en) | 1996-11-05 |
Family
ID=14179677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7096991A Pending JPH08290511A (en) | 1995-04-21 | 1995-04-21 | Laminated sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08290511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100466182B1 (en) * | 2002-09-16 | 2005-01-13 | 허봉락 | Anti-shocking member |
| DE102011106883A1 (en) * | 2011-07-07 | 2013-01-10 | Faurecia Innenraum Systeme Gmbh | Molded part with textured surface and method for producing the molded part |
-
1995
- 1995-04-21 JP JP7096991A patent/JPH08290511A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100466182B1 (en) * | 2002-09-16 | 2005-01-13 | 허봉락 | Anti-shocking member |
| DE102011106883A1 (en) * | 2011-07-07 | 2013-01-10 | Faurecia Innenraum Systeme Gmbh | Molded part with textured surface and method for producing the molded part |
| US10005207B2 (en) | 2011-07-07 | 2018-06-26 | Faurecia Innenraum Systeme Gmbh | Molded part and method for manufacturing the molded part |
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