JPS6312777B2 - - Google Patents
Info
- Publication number
- JPS6312777B2 JPS6312777B2 JP55106650A JP10665080A JPS6312777B2 JP S6312777 B2 JPS6312777 B2 JP S6312777B2 JP 55106650 A JP55106650 A JP 55106650A JP 10665080 A JP10665080 A JP 10665080A JP S6312777 B2 JPS6312777 B2 JP S6312777B2
- Authority
- JP
- Japan
- Prior art keywords
- decorative panel
- resin sheet
- synthetic resin
- main body
- sheet
- 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
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 28
- 239000000057 synthetic resin Substances 0.000 claims description 28
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000002023 wood Substances 0.000 claims description 5
- 239000011094 fiberboard Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007666 vacuum forming Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229920002522 Wood fibre Polymers 0.000 description 4
- 239000002025 wood fiber Substances 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明はドアの面材、家具用材、建築用化粧
材、自動車用内装材その他の鏡板等に用いられる
シートオーバレイ化粧パネルの製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a sheet overlay decorative panel used for door facing materials, furniture materials, architectural decorative materials, automobile interior materials, and other mirror panels.
従来から、真空成形法により、パネル主体の表
面に化粧シートを貼着する方法（例えば特開昭54
−106650号）が知られている。この方法はプラス
チツク製の成形パネルの芯材に多数の孔を設け
て、接着剤を塗布し、２枚の可塑性合成樹脂シー
トを上記パネル主体の表面側に配して該化粧シー
トを加熱、軟化させると共にパネル主体の裏面側
から成形パネルの孔を介して真空吸引してパネル
主体表面に接着させるものであり、パネル主体に
形成した凹凸模様に沿つて化粧シートを密着させ
ることができることから家具用キヤビネツト材や
ドアの面材等に広く利用されていが、吸引のため
の多くの孔を設ける必要があり、孔が表面に現出
し易いと共に接着剤を成形パネルの凹凸面に塗布
するのに手間がかかつて生産性が低く、さらには
第１図に示すように化粧パネル主体に設けられた
額縁状凹模様部が四角形等の角形形状である場合
にはその隅角部以外の部分に比べて隅角部に密着
させる化粧シートの伸度が大きくなるために次の
ような問題点があつた。 Conventionally, a method of pasting a decorative sheet on the surface of the main panel by vacuum forming method (for example,
-106650) is known. This method involves creating a large number of holes in the core material of a molded plastic panel, applying an adhesive, placing two plastic synthetic resin sheets on the surface of the main panel, and heating and softening the decorative sheets. At the same time, the decorative sheet is attached to the surface of the panel body by vacuum suction from the back side of the panel body through the holes in the molded panel, and the decorative sheet can be adhered to the surface of the panel body along the uneven pattern formed on the panel body, making it ideal for furniture. It is widely used for cabinet materials and door facing materials, but it is necessary to provide many holes for suction, and the holes tend to appear on the surface and it is time-consuming to apply adhesive to the uneven surface of the molded panel. Furthermore, as shown in Fig. 1, if the frame-like concave pattern provided on the main part of the decorative panel is square or other rectangular shape, the productivity is low compared to the parts other than the corners. The following problems arose due to the increased elongation of the decorative sheet that was brought into close contact with the corners.
即ち、真空吸引を行うと、第６図及び第７図に
示すように、化粧シートａがパネル主体ｂの表面
に密着すると共に凹模様部ｃの内側及び外側周壁
面に沿つて密着していくが、隅角部ｄにまで密着
させるには凹模様部ｃの側壁面から底面に密着さ
せたのち更に伸長させなければならないために、
先に密着したシート部分から引張作用を受けて充
分に密着させることが困難となり、該隅角部にお
いてシート部分が浮き上がつた状態ｅとなり、シ
ヤープな外観が得られず曲面となり易い。一方、
シート裏面に接着剤を塗布して生産性を高めると
化粧シートａを吸引して隅角部ａに密着したとし
ても、上記化粧シートが他の部分に比べて大きな
伸びを生じて密着するためにシート裏面の接着剤
層が極度に薄くなり、接着力が弱く、冷却により
化粧シートａが収縮を起した際には隅角部から剥
離して浮き上がりｅが生じるものであり、従つて
シヤープな外観に仕上げることは困難であつた。 That is, when vacuum suction is performed, as shown in FIGS. 6 and 7, the decorative sheet a comes into close contact with the surface of the panel main body b, and also comes into close contact along the inner and outer peripheral wall surfaces of the concave pattern portion c. However, in order to make it stick to the corner d, it is necessary to make it stick from the side wall surface of the concave pattern part c to the bottom surface and then extend it further.
It becomes difficult to achieve sufficient adhesion due to the tensile action from the sheet portion that was in close contact with the previous sheet portion, and the sheet portion becomes raised at the corner portions, making it difficult to obtain a sharp appearance and resulting in a curved surface. on the other hand,
If adhesive is applied to the back side of the sheet to increase productivity, even if the decorative sheet a is attracted and adheres to the corner part a, the decorative sheet will elongate to a greater extent than other parts and will not adhere tightly. The adhesive layer on the back of the sheet becomes extremely thin and the adhesive strength is weak, and when the decorative sheet a shrinks due to cooling, it peels off from the corners and lifts e, resulting in a sharp appearance. It was difficult to finish it.
本発明はこのような欠点をなくするために、角
形の額縁状凹模様部を設けた化粧パネル主体の表
面に合成樹脂シートを真空成形法により接着する
に際して、上記化粧パネル主体を木質繊維板等の
通気性を有する材料にて形成し、合成樹脂シート
の裏面に接着剤を塗布すると共に前記化粧パネル
主体の額縁状凹模様部の底部の隅角部に裏面に貫
通する小孔を穿設し且つ該隅角部の小孔付近表面
に接着剤を塗布したのち合成樹脂シートを化粧パ
ネル主体の表面側に配し、該合成樹脂シートを加
熱、軟化させると共に化粧パネル主体の裏面側よ
り真空吸引してパネル主体の表面全面に吸引力を
作用させて合成樹脂シートと化粧パネルとを接着
一体化させることを特徴とするシートオーバレイ
化粧パネルの製造方法を提供するものである。 In order to eliminate such drawbacks, the present invention provides a method for bonding a synthetic resin sheet to the surface of a decorative panel provided with a rectangular frame-like concave pattern using a vacuum forming method. An adhesive is applied to the back side of the synthetic resin sheet, and a small hole penetrating the back side is formed at the corner of the bottom of the frame-like concave pattern portion of the decorative panel main body. After applying adhesive to the surface near the small hole in the corner, a synthetic resin sheet is placed on the front side of the decorative panel main body, and the synthetic resin sheet is heated and softened, and vacuum suction is applied from the back side of the decorative panel main body. The present invention provides a method for producing a sheet overlay decorative panel, characterized in that a synthetic resin sheet and a decorative panel are bonded and integrated by applying suction force to the entire surface of the main body of the panel.
本発明方法を図面に基いて説明すると、木材等
の通気性を有する材料より形成された化粧パネル
主体１、例えば、木材繊維を主原料とし、該繊維
に合成樹脂等の結合剤等を添加して乾式法或いは
湿式法で成型されたパネル主体１の１個所又は複
数個所に、表面から裏面に向かつて長方形状等の
角形の額縁状に膨出させて凹模様部２を設けてあ
る。 The method of the present invention will be explained based on the drawings. The decorative panel main body 1 is made of an air-permeable material such as wood, for example, the main raw material is wood fiber, and a binder such as a synthetic resin is added to the fiber. A concave pattern portion 2 is provided at one or more locations on a panel main body 1 formed by a dry method or a wet method so as to bulge out from the front surface toward the back surface in the shape of a square frame such as a rectangular shape.
このような額縁状凹模様部２は、木質繊維より
なるパネル主体１を成型する際に同時に形成して
もよく、又、一旦木質繊維板を形成したのちにこ
れを熱圧成型して形成してもよい。 Such a frame-shaped concave pattern portion 2 may be formed at the same time as molding the panel main body 1 made of wood fibers, or may be formed by thermo-pressure molding the wood fiber board once formed. It's okay.
このパネル主体１の額縁状凹模様部２の隅角部
２ａ、即ち、凹模様部２の隣接する内、外側壁面
２ｂ，２ｂ、２ｃ，２ｃの連設角部における底部
に表面両間に亘つて貫通する小孔３，３を穿設す
ると共にその小孔３，３の周辺部における隅角部
２ａの表面に適宜の接着剤４を塗布したのち真空
ポンプと連通した箱状容器（図示せず）内に架設
状態で横置し、しかるのち箱状容器の上端開口部
に裏面（下面）に接着剤５を全面的に塗布した塩
化ビニル等の熱可塑性樹脂シート６を張設する。 At the corner 2a of the frame-like concave pattern portion 2 of the panel main body 1, that is, at the bottom of the continuous corner of the adjacent inner and outer wall surfaces 2b, 2b, 2c, and 2c of the concave pattern portion 2, it extends between both surfaces. After making small holes 3, 3 that pass through the small holes 3, 3 and applying an appropriate adhesive 4 to the surface of the corner 2a around the small holes 3, 3, a box-shaped container (not shown) is connected to a vacuum pump. Then, a thermoplastic resin sheet 6 made of vinyl chloride or the like, whose back surface (lower surface) is fully coated with an adhesive 5, is stretched over the top opening of the box-shaped container.
次いで、該熱可塑性樹脂シート６を上面より赤
外線等の適宜の加熱手段によつて80〜100℃の温
度下で加熱軟化させると共に軟化させた状態で箱
状容器の内底部に連通した真空ポンプを作動させ
れば、化粧パネルが全体的に通気性を有する木質
繊維板等の通気性材料で形成されているので特別
な抜気の孔を設けなくても容器内の空気の排気と
共にパネル表面の空気圧力が減圧されて、合成樹
脂シート６がパネル主体１の表面全面に沿つて密
着することになる。 Next, the thermoplastic resin sheet 6 is heated and softened from the upper surface at a temperature of 80 to 100°C using an appropriate heating means such as infrared rays, and in the softened state, a vacuum pump connected to the inner bottom of the box-shaped container is heated. When activated, the entire decorative panel is made of a breathable material such as wood fiberboard, so the air inside the container is exhausted and the surface of the panel is removed without the need for special ventilation holes. The air pressure is reduced, and the synthetic resin sheet 6 comes into close contact along the entire surface of the panel main body 1.
この際、まず、パネル主体１の平滑な表面に合
成樹脂シート６の表面が接着剤５を介して密着
し、次に額縁状凹模様部２内に垂下して該凹模様
部の隅角部以外の内外側壁面２ｂ，２ｃに密着
し、最後に隅角部２ａの部分に穿設した小孔３，
３からの吸引力により合成樹脂シート６が該隅角
部２ａに密接して接着剤４，６により強固に接着
するものである。 At this time, first, the surface of the synthetic resin sheet 6 is brought into close contact with the smooth surface of the panel main body 1 via the adhesive 5, and then it hangs down into the frame-like concave pattern part 2 to form a corner part of the concave pattern part. A small hole 3, which is in close contact with the other inner and outer wall surfaces 2b and 2c, and which is finally drilled at the corner 2a,
The synthetic resin sheet 6 is brought into close contact with the corner portion 2a by the suction force from the adhesives 4 and 6, and is firmly adhered to the corner portion 2a.
次に本発明の具体的な実施例を示す。 Next, specific examples of the present invention will be shown.
木材繊維を主原料として形成したドアパネルの
面材用化粧パネル主体に四角形状の裏面側に膨出
した額縁状の凹模様部を設け、該額縁状凹模様部
の四方隅角部に表裏面間に貫通する0.5ｍ／ｍ径
の小孔を穿設すると共に該小孔の表面側周辺部に
ウレタン系接着剤を塗布したのち、このパネル主
体を真空吸引ボツクス上に載置した。 A frame-shaped recessed pattern part bulging out on the back side of a rectangular shape is provided on the decorative panel for the face material of a door panel made of wood fiber as the main raw material. A small hole with a diameter of 0.5 m/m was drilled through the panel, and a urethane adhesive was applied around the surface of the hole, and then the main body of the panel was placed on a vacuum suction box.
次に、裏面にウレタン系接着剤を100ｇ／m2の
割合で全面に塗布したPVC樹脂シートを化粧パ
ネル主体の上方に配したのち赤外線ヒーターで加
熱軟化し、この状態で真空ポンプを作動させて真
空吸引し、化粧パネル主体の表面にPVC樹脂シ
ートを接着させたところ、額縁状凹模様部の隅角
部にまで完全にシートが密着したシートオーバレ
イ化粧パネルが得られた。 Next, a PVC resin sheet coated with urethane adhesive at a rate of 100 g/m 2 on the back is placed above the main body of the decorative panel, heated and softened with an infrared heater, and in this state the vacuum pump is activated. When a PVC resin sheet was adhered to the main surface of the decorative panel using vacuum suction, a sheet overlay decorative panel was obtained in which the sheet was completely adhered to the corners of the frame-like concave pattern.
以上のように本発明は、角形の額縁状凹模様部
を設けた化粧パネル主体の表面に合成樹脂シート
を真空成形法により接着するに際して、上記化粧
パネル主体を木質繊維板等の通気性を有する材料
にて形成し、合成樹脂シートの裏面に接着剤を塗
布すると共に前記化粧パネル主体の額縁状凹模様
部の底部の隅角部に裏面に貫通する小孔を穿設し
且つ該隅角部の小孔付近表面に接着剤を塗布した
のち合成樹脂シートを化粧パネル主体の表面側に
配し、該合成樹脂シートを加熱、軟化させると共
に化粧パネル主体の裏面側より真空吸引してパネ
ル主体の表面全面に吸引力を作用させて合成樹脂
シートと化粧パネルとを接着一体化させることを
特徴とするシートオーバレイ化粧パネルの製造方
法に係るものであるから、化粧パネル主体の平滑
な表面から額縁状凹模様部の側壁に沿つて密着さ
せて行く場合に合成樹脂シートを凹模様部の隅角
部に穿設した小孔を通して積極的に大きな吸引力
を発生させて隅角部の表面までも完全に密着させ
ることが出来る。換言すれば、上記隅角部に小孔
を予め設けてあるので、隅角部における合成樹脂
シートに真空吸引力を大きく作用させて隅角部の
接着剤に合成樹脂シートを大きな圧力で密着させ
ることが出来る。又、上記小孔は凹模様の底面の
隅角部のみに設けておけばよいので製品表面上か
らは判断されず外観を損なわないという利点があ
る。又、化粧パネル主体を木質繊維板等の通気性
を有する材料にて形成したので、化粧パネルの裏
面から吸引した時に芯材となる化粧パネルに余分
な孔を設けなくとも化粧パネルの平面部から凹模
様内壁面に沿つて均一に合成樹脂シートを密着さ
せることができ、従来例のように合成樹脂シート
を二枚も使用する必要がなく、一枚の合成樹脂シ
ートで芯材表面を被覆して化粧パネルのコーナー
部のシヤープさをそのまま現出させることが出来
るという利点もある。更に隅角部の小孔付近表面
に接着剤を塗布しているので、隅角部侵入時の合
成樹脂シートの伸びに伴う接着剤の不足分（即
ち、シートが伸びる事により接着剤も伸びてその
分だけ接着剤が薄くなる。）を化粧パネルの隅角
部に塗布した別の接着剤で補う事が出来、その結
果、凹模様隅角部での接着不良による剥離が生じ
ず、例えば冷却により化粧シートが収縮を生じた
際において引張応力の集中による隅角部のシート
の剥離を確実に防止できるものであり、シヤープ
な凹模様部を有するシートオーバレイ化粧パネル
を得ることができるものである。加えて、合成樹
脂シートの裏面全面に接着剤塗布を行うので、平
坦なシート面に塗布すればよく、ロールコーター
等の設備で能率良く行うことができるものであ
る。 As described above, in the present invention, when adhering a synthetic resin sheet to the surface of a decorative panel main body provided with a rectangular frame-like concave pattern portion by vacuum forming, the decorative panel main body is made of air-permeable material such as wood fiberboard. material, and apply an adhesive to the back side of the synthetic resin sheet, and at the same time, make a small hole penetrating through the back side at the bottom corner of the frame-like concave pattern portion of the decorative panel main body, and After applying adhesive to the surface near the small holes, a synthetic resin sheet is placed on the front side of the decorative panel main body, and the synthetic resin sheet is heated and softened, and vacuum suction is applied from the back side of the decorative panel main body. Since this relates to a method for manufacturing a sheet overlay decorative panel, which is characterized by applying suction force to the entire surface and bonding and integrating a synthetic resin sheet and a decorative panel, it is possible to create a frame-like shape from the smooth surface of the decorative panel. When the synthetic resin sheet is placed in close contact with the side wall of the concave pattern, a large suction force is actively generated through the small holes drilled in the corners of the concave pattern to ensure that even the surface of the corner is completely covered. It can be brought into close contact with the In other words, since a small hole is previously provided in the corner, a large vacuum suction force is applied to the synthetic resin sheet in the corner, and the synthetic resin sheet is brought into close contact with the adhesive in the corner with great pressure. I can do it. Further, since the small holes need only be provided at the corners of the bottom surface of the concave pattern, they are not visible from the surface of the product and have the advantage that they do not impair the appearance. In addition, since the main body of the decorative panel is made of an air permeable material such as wood fiberboard, when suction is drawn from the back of the decorative panel, it can be absorbed from the flat surface of the decorative panel without having to provide extra holes in the decorative panel that serves as the core material. The synthetic resin sheet can be evenly adhered to the inner wall surface of the concave pattern, and there is no need to use two synthetic resin sheets as in the conventional case, and the core material surface can be covered with one synthetic resin sheet. Another advantage is that the sharpness of the corners of the decorative panel can be brought out as is. Furthermore, since the adhesive is applied to the surface near the small hole in the corner, there is no shortage of adhesive due to the stretching of the synthetic resin sheet when it enters the corner (i.e., as the sheet stretches, the adhesive also stretches). (The adhesive becomes thinner by that amount.) can be supplemented with another adhesive applied to the corners of the decorative panel.As a result, peeling due to poor adhesion at the concave corners does not occur, and for example, when cooled When the decorative sheet shrinks, it is possible to reliably prevent the sheet from peeling off at the corners due to the concentration of tensile stress, and it is possible to obtain a sheet overlay decorative panel having a sharp concave pattern. . In addition, since the adhesive is applied to the entire back surface of the synthetic resin sheet, it is sufficient to apply the adhesive to a flat sheet surface, and the adhesive can be efficiently applied using equipment such as a roll coater.
図面は本発明方法の実施例を示すもので、第１
図は化粧パネル主体の簡略斜視図、第２図は第１
図Ａ−Ａ線における縦断側面図、第３図は化粧パ
ネル主体の凹模様部分の一部を断面した拡大斜視
図、第４図及び第５図は化粧パネル主体の凹模様
部の隅角部に化粧シートを密着させる前と密着後
における断面図であり、第６図は従来方法により
化粧パネル主体に化粧シートを密着させた要部の
一部を断面した斜視図、第７図はそのＢ−Ｂ線に
おける断面図である。
１……化粧パネル主体、２……凹模様部、２ａ
……隅角部、３……小孔、４，５……接着剤、６
……熱可塑性樹脂シート。
The drawings show an embodiment of the method of the present invention.
The figure is a simplified perspective view of the main part of the decorative panel, and Figure 2 is the first
A vertical side view taken along the line A-A in Figure 3, an enlarged perspective view of a part of the concave pattern part of the decorative panel mainly, and Figures 4 and 5 show corner parts of the concave pattern part of the decorative panel main body. FIG. 6 is a cross-sectional view of a part of the main part of the decorative panel that has been brought into close contact with the decorative sheet by the conventional method, and FIG. 7 is a cross-sectional view of the decorative sheet B. - It is a sectional view taken on the B line. 1... Decorative panel main body, 2... Concave pattern part, 2a
... Corner, 3 ... Small hole, 4, 5 ... Adhesive, 6
...Thermoplastic resin sheet.
Claims (1)
体の表面に合成樹脂シートを真空成形法により接
着するに際して、上記化粧パネル主体を木質繊維
板等の通気性を有する材料にて形成し、合成樹脂
シートの裏面に接着剤を塗布すると共に前記化粧
パネル主体の額縁状凹模様部の底部の隅角部に裏
面に貫通する小孔を穿設し且つ該隅角部の小孔付
近表面に接着剤を塗布したのち合成樹脂シートを
化粧パネル主体の表面側に配し、該合成樹脂シー
トを加熱、軟化させると共に化粧パネル主体の裏
面側より真空吸引してパネル主体の表面全面に吸
引力を作用させて合成樹脂シートと化粧パネルと
を接着一体化させることを特徴とするシートオー
バレイ化粧パネルの製造方法。1. When adhering a synthetic resin sheet to the surface of a decorative panel main body provided with a rectangular frame-like concave pattern portion by vacuum forming, the decorative panel main body is formed of an air-permeable material such as wood fiberboard, and the synthetic resin sheet is Applying an adhesive to the back side of the resin sheet, making a small hole penetrating the back side at the bottom corner of the frame-like concave pattern portion of the decorative panel, and adhering to the surface near the small hole at the corner. After applying the agent, a synthetic resin sheet is placed on the front surface of the decorative panel main body, the synthetic resin sheet is heated and softened, and vacuum suction is applied from the back side of the decorative panel main body to apply suction force to the entire surface of the panel main body. A method for manufacturing a sheet overlay decorative panel, which comprises bonding and integrating a synthetic resin sheet and a decorative panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10665080A JPS5731527A (en) | 1980-08-01 | 1980-08-01 | Manufacture of sheet overlay decorated panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10665080A JPS5731527A (en) | 1980-08-01 | 1980-08-01 | Manufacture of sheet overlay decorated panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5731527A JPS5731527A (en) | 1982-02-20 |
| JPS6312777B2 true JPS6312777B2 (en) | 1988-03-22 |
Family
ID=14438984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10665080A Granted JPS5731527A (en) | 1980-08-01 | 1980-08-01 | Manufacture of sheet overlay decorated panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5731527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514217Y2 (en) * | 1988-02-29 | 1993-04-15 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036327A (en) * | 1983-08-10 | 1985-02-25 | Showa Koki Kk | Control of precipitation of iron compound in aqueous solution of caustic alkali containing alkali aluminate |
| FR2566382B1 (en) * | 1984-06-25 | 1986-10-24 | Pechiney Aluminium | PURIFICATION OF BAYER SODIUM ALUMINATE SOLUTIONS BY REMOVAL OF SODIUM OXALATE |
| US5068095A (en) * | 1986-07-31 | 1991-11-26 | Aluminum Company Of America | Method for reducing the amount of colorants in a caustic liquor |
| US4915930A (en) * | 1986-07-31 | 1990-04-10 | Aluminum Company Of America | Process for producing aluminum hydroxide of improved whiteness |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5410367A (en) * | 1977-06-24 | 1979-01-25 | Honda Motor Co Ltd | Method of manufacturing laminated plastic products |
-
1980
- 1980-08-01 JP JP10665080A patent/JPS5731527A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5410367A (en) * | 1977-06-24 | 1979-01-25 | Honda Motor Co Ltd | Method of manufacturing laminated plastic products |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514217Y2 (en) * | 1988-02-29 | 1993-04-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5731527A (en) | 1982-02-20 |
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