JPH0236369B2 - - Google Patents
Info
- Publication number
- JPH0236369B2 JPH0236369B2 JP57089093A JP8909382A JPH0236369B2 JP H0236369 B2 JPH0236369 B2 JP H0236369B2 JP 57089093 A JP57089093 A JP 57089093A JP 8909382 A JP8909382 A JP 8909382A JP H0236369 B2 JPH0236369 B2 JP H0236369B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- skin material
- skin
- resin sheet
- uneven
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 48
- 229920003002 synthetic resin Polymers 0.000 claims description 39
- 239000000057 synthetic resin Substances 0.000 claims description 39
- 239000006260 foam Substances 0.000 claims description 25
- 229920001169 thermoplastic Polymers 0.000 claims description 18
- 239000004416 thermosoftening plastic Substances 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 6
- 238000007666 vacuum forming Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/10—Applying counter-pressure during expanding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は熱可塑性合成樹脂シートを含む表皮材
と軟質又は半硬質合成樹脂発泡体からなるクツシ
ヨン材との積層体であつて、表皮材側の表面に凹
凸模様を付形した表皮付きのクツシヨン材の製造
方法に関するものである。Detailed Description of the Invention The present invention is a laminate of a skin material including a thermoplastic synthetic resin sheet and a cushion material made of a soft or semi-hard synthetic resin foam, which has an uneven pattern on the surface of the skin material. The present invention relates to a method of manufacturing a cushion material with a shaped skin.
従来この種のクツシヨン材を製造する方法とし
て、たとえば特開昭55−105559号公報に示されて
いるように、表皮材と軟質合成樹脂発泡体をあら
かじめ接着しておき、軟質合成樹脂発泡体の加熱
プレス変形性を利用して、適宜凹模様状に形成し
た雄型で加熱プレス成形し、表面に凹凸模様を付
形する方法があつた。しかしながらこの方法によ
ると凹凸模様をシヤープに形成できない欠点があ
り、また熱可塑性合成樹脂シートからなる表皮材
上に高温に加熱した雄型が当接し、加熱加圧され
ることになるので表皮材表面の絞模様が流れてし
まう欠点もあり、このため絞模様と同様の模様を
雄型の表面に設けて行なつていたが、模様合せが
困難であつたり、表皮材の絞模様に合せて数多く
の雄型を用意しなければならないなどの技術上、
コスト上の欠点があつた。 Conventionally, as shown in Japanese Patent Application Laid-Open No. 55-105559, a method for manufacturing this type of cushion material is to bond the skin material and the soft synthetic resin foam in advance, and There is a method of hot press molding using a male die formed into an appropriately concave pattern by utilizing heat press deformability to form a concavo-convex pattern on the surface. However, this method has the disadvantage that it is not possible to form a sharp uneven pattern, and also because the male die heated to a high temperature comes into contact with the skin material made of a thermoplastic synthetic resin sheet and is heated and pressurized. There is also the drawback that the shibori pattern of the wafer may run, and for this reason, a pattern similar to the shibori pattern was created on the surface of the male die, but it was difficult to match the pattern, and there were many cases where it was difficult to match the pattern, and there were many cases where it was difficult to match the pattern. Due to technical reasons, such as having to prepare a male mold,
There was a cost disadvantage.
また表皮材の気密性、熱可塑性を利用して表皮
材とクツシヨン材を貼り合せた積層シートを凹凸
模様を形成した真空成形用雌型によつて加熱真空
吸引成形することも行なわれたが、この方法によ
ると表皮材の裏面に貼着したクツシヨン材の弾力
性のために復元しようとする力がかかり浅い凹凸
模様や小さい凹凸模様などは明瞭に付形すること
ができなかつた。 In addition, by utilizing the airtightness and thermoplasticity of the skin material, a laminated sheet made by bonding the skin material and the cushion material was formed by heating and vacuum suction molding using a female mold for vacuum forming with an uneven pattern. According to this method, due to the elasticity of the cushion material attached to the back surface of the skin material, a force is applied to restore the material, making it impossible to clearly form shallow uneven patterns or small uneven patterns.
本発明はこのような従来の方法の欠点を解決
し、表面の凹凸模様を明瞭に、しかも容易に付形
することができる表皮付きクツシヨン材の製造方
法を提供することを目的としたものである。 The object of the present invention is to solve the drawbacks of the conventional methods and provide a method for producing a cushion material with a skin, which allows the uneven pattern on the surface to be clearly and easily shaped. .
すなわち本発明は、あらかじめ所定温度に加熱
した凹凸意匠を有するとともに多数の吸引孔を設
けた真空成形用雌型に、熱可塑性合成樹脂シート
を含む表皮材を載置し、これをあらかじめ吸引成
形して金型に密着させ、次に所定の凹凸意匠の深
さより厚さの厚い軟質又は半硬質合成樹脂発泡体
の熱可塑性合成樹脂シートを含む表皮材との接着
面に接着剤を塗布した後、これを凹凸意匠部にセ
ツトし、該合成樹脂発泡体をあらかじめ前記雌型
より高い所定温度に加熱された雄型により加熱圧
縮して、熱可塑性合成樹脂シートを含む表皮材
と、軟質又は半硬質合成樹脂発泡体を一体に成形
することを特徴とする表面に凹凸意匠模様を付形
した表皮付クツシヨン材の製造方法である。 That is, in the present invention, a skin material including a thermoplastic synthetic resin sheet is placed on a female mold for vacuum molding which has a concavo-convex design and is provided with a large number of suction holes and is heated to a predetermined temperature in advance, and this is suction-molded in advance. Then, after applying an adhesive to the adhesive surface of the soft or semi-hard synthetic resin foam with the skin material containing the thermoplastic synthetic resin sheet, which is thicker than the depth of the predetermined uneven design, This is set in the uneven design area, and the synthetic resin foam is heated and compressed using a male mold that has been heated in advance to a predetermined temperature higher than the female mold to form a skin material containing a thermoplastic synthetic resin sheet and a soft or semi-hard material. This is a method for manufacturing a cushion material with a skin having an uneven design pattern formed on the surface, which is characterized by integrally molding a synthetic resin foam.
図面実施例に基づいて説明をする。 Explanation will be given based on drawing examples.
第１図は本発明により得られたクツシヨン材の
断面図である。第２〜４図は製造方法を示す説明
図である。本発明においてはまず第２図に示すよ
うにクツシヨン材の表面に付形すべき凹凸模様と
同一の凹凸形状４の内面に付形した真空成形用雌
型２及び加熱圧縮用雄型３を用意する。クツシヨ
ン材の素材としては熱可塑性合成樹脂シートを含
む表皮材１と、軟質又は半硬質合成樹脂発泡体６
である。熱可塑性合成樹脂シートを含む表皮材１
は熱可塑性合成樹脂シート単独あるいは熱可塑性
合成樹脂シートと伸縮性を有する生布を貼り合せ
たいわゆる合成樹脂レザーが使用できる。合成樹
脂レザーは合成樹脂面を表側として使用すること
も生布面側を表側として使用することもどちらで
もできる。熱可塑性合成樹脂シートはすべての熱
可塑性合成樹脂からなるシート状物が使用でき
る。代表的なものはポリ塩化ビニル樹脂、アクリ
ル樹脂、ポリウレタン樹脂、ポリエチレン樹脂な
どである。軟質又は半硬質合成樹脂発泡体６はポ
リウレタンフオーム、ポリ塩化ビニルフオーム、
ポリエチレンンフオームなどでクツシヨン性を有
し、加熱プレス変形性を有するものである。使用
する発泡体の厚さは凹凸意匠の深さにより適宜選
択することができるが凹凸意匠の深さより厚く、
３〜50mmが適当である。まず、第２図に示すよう
に表皮材１を雌型２のフランジ面に載置し、押え
枠５で周囲を止め吸引孔７から吸気し真空成形を
行ない雌型内面に密着させる。次に雌型に合致し
た大きさの軟質又は半硬質合成樹脂発泡体６の熱
可塑性合成樹脂シートを含む表皮材との接着面に
接着剤を塗布して、これを、第３図に示す様に意
匠面に沿わせて載置する。この際使用する接着剤
はエマルジヨンタイプ、溶剤タイプ、ホツトメル
トタイプのものが適する。次に、凹凸意匠形状に
合成樹脂発泡体６を加熱圧縮すべく雄型３を降下
させる。表皮材１は第４図に示すように雌型２の
型面通りに容易に成形され、合成樹脂発泡体６も
所定の凹凸意匠通りの形状に加熱プレス成形され
る。この際雌型２は熱可塑性合成樹脂シートの軟
化点以下で、50〜170℃に加熱しておき、雄型３
は120〜230℃に加熱し、プレス時間は１分〜10分
である。又、吸引時間は適宜、表皮材の厚味、種
類により選択することができる。かくして、表皮
材１は真空成形によつて所定形状を保持するとと
もに凹凸意匠部においては、軟質又は半硬質合成
樹脂発泡体６が表皮材１の裏面の形状に沿つた形
状に変形し、その形状を保つたまま同時に表皮材
１と一体に接着される。また必要な場合におい
て、軟質合成樹脂発泡体６の裏面に布材などの補
強材を設けることは自由であり。このような場合
には加熱プレス成形時に同時に接着することがで
きる。なおこの実施例の場合雄型３は表面が平面
状であるが、必要に応じて凹凸形状のものを使用
することもでき、このような雄型３を使用した場
合は、軟質合成樹脂発泡体６の裏面には雄型３の
凹凸形状に応じた凹凸形状が形成される。 FIG. 1 is a sectional view of a cushion material obtained according to the present invention. 2 to 4 are explanatory diagrams showing the manufacturing method. In the present invention, first, as shown in FIG. 2, a female die 2 for vacuum forming and a male die 3 for heat compression are prepared, each having an inner surface formed with an uneven pattern 4 identical to the uneven pattern to be formed on the surface of the cushion material. do. The cushion material includes a skin material 1 containing a thermoplastic synthetic resin sheet, and a soft or semi-hard synthetic resin foam 6.
It is. Skin material 1 including thermoplastic synthetic resin sheet
For this purpose, a thermoplastic synthetic resin sheet alone or a so-called synthetic resin leather made by laminating a thermoplastic synthetic resin sheet and a stretchable raw cloth can be used. Synthetic resin leather can be used either with the synthetic resin side as the front side or with the raw cloth side as the front side. The thermoplastic synthetic resin sheet can be a sheet made of any thermoplastic synthetic resin. Typical examples include polyvinyl chloride resin, acrylic resin, polyurethane resin, and polyethylene resin. The soft or semi-hard synthetic resin foam 6 is made of polyurethane foam, polyvinyl chloride foam,
It is made of polyethylene foam or the like and has cushioning properties, and has heat press deformability. The thickness of the foam used can be selected appropriately depending on the depth of the uneven design, but it is thicker than the depth of the uneven design.
3 to 50 mm is appropriate. First, as shown in FIG. 2, the skin material 1 is placed on the flange surface of the female mold 2, the circumference is stopped with the presser frame 5, air is sucked in through the suction hole 7, and vacuum forming is performed to bring it into close contact with the inner surface of the female mold. Next, an adhesive is applied to the adhesive surface of the soft or semi-hard synthetic resin foam 6 of a size matching the female mold to the skin material containing the thermoplastic synthetic resin sheet, and this is applied as shown in FIG. Place it along the design surface. Suitable adhesives to be used in this case are emulsion type, solvent type, and hot melt type. Next, the male mold 3 is lowered to heat and compress the synthetic resin foam 6 into an uneven design shape. As shown in FIG. 4, the skin material 1 is easily molded according to the mold surface of the female mold 2, and the synthetic resin foam 6 is also hot press molded into a shape according to a predetermined uneven design. At this time, the female mold 2 is heated to 50 to 170°C below the softening point of the thermoplastic synthetic resin sheet, and the male mold 3
is heated to 120-230°C, and the pressing time is 1-10 minutes. Further, the suction time can be appropriately selected depending on the thickness and type of the skin material. Thus, the skin material 1 maintains a predetermined shape by vacuum forming, and in the uneven design portion, the soft or semi-hard synthetic resin foam 6 deforms into a shape that follows the shape of the back surface of the skin material 1, and the shape At the same time, it is bonded integrally with the skin material 1 while maintaining the same. Furthermore, if necessary, a reinforcing material such as a cloth material may be provided on the back surface of the soft synthetic resin foam 6. In such a case, bonding can be performed simultaneously during hot press molding. In this example, the male mold 3 has a flat surface, but it is also possible to use an uneven surface if necessary. If such a male mold 3 is used, a soft synthetic resin foam can be used. An uneven shape corresponding to the uneven shape of the male mold 3 is formed on the back surface of the mold 6.
本発明によると表皮材１は熱可塑性合成樹脂シ
ートを含むものであるから容易に真空成形するこ
とができ、成形型の内面に形成した凹凸形状通り
に明瞭に凹凸形状が付形された表皮材１となる。
同時に真空成形により表皮材１が比較的低温で容
易に付形されるため絞模様が明瞭に残る。 According to the present invention, since the skin material 1 includes a thermoplastic synthetic resin sheet, it can be easily vacuum-formed. Become.
At the same time, the skin material 1 is easily shaped at a relatively low temperature by vacuum forming, so that a drawing pattern remains clearly.
軟質合成樹脂発泡体６は加熱プレス変形性を有
するから、これを表皮材１の裏側に載置し、雄型
３と雌型２により加熱プレスすると容易に凹凸形
状が付形される。同時に表皮材１と発泡体６は加
熱圧着されるから接着剤も活性化され、硬化して
強固に接着一体化される。 Since the soft synthetic resin foam 6 has heat press deformability, when it is placed on the back side of the skin material 1 and heated and pressed using the male die 3 and the female die 2, an uneven shape is easily formed. At the same time, the skin material 1 and the foam 6 are bonded together under heat and pressure, so that the adhesive is also activated and hardened to be firmly bonded and integrated.
以上のように本発明によると真空成形と加熱プ
レス成形の併用により凹凸模様が明瞭に付形され
た表皮付きクツシヨン材がきわめて容易に得られ
るものであり、特に深い凹部模様や小さい凹部模
様などを明瞭に形成させるのに好適である。また
本発明では表皮材と発泡体をあらかじめ接着して
おく必要はないので積層工程が省略でき製造能率
も向上する。 As described above, according to the present invention, a skin-covered cushion material with a clearly shaped uneven pattern can be obtained very easily by a combination of vacuum forming and hot press forming, and in particular, it is possible to obtain a skin-covered cushion material with a clearly shaped uneven pattern. Suitable for forming clearly. Further, in the present invention, since it is not necessary to bond the skin material and the foam in advance, the lamination process can be omitted and manufacturing efficiency can be improved.
本発明によつて得られるクツシヨン材は第５図
の如くパデイングフオーム８と組み合せて車輛用
や家具用のクツシヨン材として使用することがで
きるが、他のクツシヨン材の表面に取り付けるク
ツシヨン性装飾表面材、たとえば内装用装飾クツ
シヨンとしても使用でき、その高い装飾性とクツ
シヨン性により用途は広いものである。 The cushion material obtained by the present invention can be used as a cushion material for vehicles or furniture by combining it with a padding foam 8 as shown in FIG. It can also be used as a decorative material for interior decoration, for example, and has a wide range of uses due to its high decorative and cushioning properties.
第１図は本発明により得られる表皮付きクツシ
ヨン材の断面図、第２図、第３図、第４図は本発
明の製造方法を示す説明図、第５図はパデイング
フオームを充填した状態の断面図である。
１……熱可塑性合成樹脂シートを含む表皮材、
２……真空成形用雌型、３……加熱圧縮用雄型、
６……軟質又は半硬質合成樹脂発泡体。
Fig. 1 is a sectional view of a cushion material with a skin obtained by the present invention, Figs. 2, 3, and 4 are explanatory diagrams showing the manufacturing method of the present invention, and Fig. 5 is a state filled with padding foam. FIG. 1... Skin material containing a thermoplastic synthetic resin sheet,
2...Female mold for vacuum forming, 3...Male mold for heating compression,
6... Soft or semi-hard synthetic resin foam.
Claims (1)
するとともに多数の吸引孔を設けた真空成型用雌
型に、熱可塑性合成樹脂シートを含む表皮材を載
置し、これをあらかじめ吸引成型して金型に密着
させ、次に所定の凹凸意匠の深さより厚さの厚い
軟質又は半硬質合成樹脂発泡体の熱可塑性合成樹
脂シートを含む表皮材との接着面に接着剤を塗布
した後これを凹凸意匠部にセツトし、該合成樹脂
発泡体をあらかじめ前記雌型より高い所定温度に
加熱された雄型により加熱圧縮して、熱可塑性合
成樹脂シートを含む表皮材と軟質又は半硬質合成
樹脂発泡体を一体に成型することを特徴とする表
面に凹凸意匠模様を付形した表皮付きクツシヨン
材の製造方法。1. A skin material containing a thermoplastic synthetic resin sheet is placed on a female mold for vacuum molding which has a concavo-convex design and a large number of suction holes, which has been heated to a predetermined temperature in advance, and is suction-molded in advance into the mold. Then, after applying an adhesive to the adhesive surface of the soft or semi-hard synthetic resin foam that is thicker than the depth of the predetermined unevenness design and the skin material containing the thermoplastic synthetic resin sheet, this is applied to the unevenness design area. The synthetic resin foam is heated and compressed using a male mold that has been previously heated to a predetermined temperature higher than the female mold to integrate the skin material containing the thermoplastic synthetic resin sheet and the soft or semi-hard synthetic resin foam. A method for producing a cushion material with a skin, the surface of which is formed with an uneven design pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57089093A JPS58205739A (en) | 1982-05-26 | 1982-05-26 | Production of cushioning material with skin provided with rugged pattern on surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57089093A JPS58205739A (en) | 1982-05-26 | 1982-05-26 | Production of cushioning material with skin provided with rugged pattern on surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58205739A JPS58205739A (en) | 1983-11-30 |
| JPH0236369B2 true JPH0236369B2 (en) | 1990-08-16 |
Family
ID=13961262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57089093A Granted JPS58205739A (en) | 1982-05-26 | 1982-05-26 | Production of cushioning material with skin provided with rugged pattern on surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58205739A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6129514A (en) * | 1984-07-20 | 1986-02-10 | Kurabo Ind Ltd | Manufacture of integrally moldedl product for interior design |
| GB8527023D0 (en) * | 1985-11-01 | 1985-12-04 | Wiggins Teape Group Ltd | Moulded fibre reinforced plastic articles |
| JP2020100991A (en) * | 2018-12-21 | 2020-07-02 | 株式会社タイボー | Roof tile and outer wall material manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117269A (en) * | 1974-08-01 | 1976-02-12 | Mtp Kasei Kk | HATSUHOGOSEIJUSHISEIKEIHINNO SEIZOHOHO |
| JPS55118837A (en) * | 1979-03-06 | 1980-09-12 | Meiwa Sangyo Kk | Manufacture of polystyrene beed foam molded article having outer layer |
-
1982
- 1982-05-26 JP JP57089093A patent/JPS58205739A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117269A (en) * | 1974-08-01 | 1976-02-12 | Mtp Kasei Kk | HATSUHOGOSEIJUSHISEIKEIHINNO SEIZOHOHO |
| JPS55118837A (en) * | 1979-03-06 | 1980-09-12 | Meiwa Sangyo Kk | Manufacture of polystyrene beed foam molded article having outer layer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58205739A (en) | 1983-11-30 |
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