JPH06238688A - Press molded form of volume-reduced article of thermoplastic resin foam - Google Patents
Press molded form of volume-reduced article of thermoplastic resin foamInfo
- Publication number
- JPH06238688A JPH06238688A JP2822493A JP2822493A JPH06238688A JP H06238688 A JPH06238688 A JP H06238688A JP 2822493 A JP2822493 A JP 2822493A JP 2822493 A JP2822493 A JP 2822493A JP H06238688 A JPH06238688 A JP H06238688A
- Authority
- JP
- Japan
- Prior art keywords
- volume
- reduced
- press
- thermoplastic resin
- molded
- 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
- 239000006260 foam Substances 0.000 title claims abstract description 27
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 229920006248 expandable polystyrene Polymers 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 60
- 239000004794 expanded polystyrene Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000004579 marble Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000005453 pelletization Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
Landscapes
- Processing Of Solid Wastes (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発泡ポリスチレン等の
熱可塑性樹脂からなる発泡体の廃物を利用でき、上記発
泡体の減容品のプレス成形体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-molded product of a reduced volume product of the above foam, which can utilize a waste product of the foam made of a thermoplastic resin such as expanded polystyrene.
【０００２】[0002]
【従来の技術】従来より、上記発泡ポリスチレン等の発
泡樹脂成形体の再利用の方法としては、溶融ペレタイズ
を行い、インジェクション成型の原料にする、一方、土
壌改良材などに用いる、あるいは燃料として用いる等が
知られている。2. Description of the Related Art Conventionally, as a method for reusing foamed resin moldings such as polystyrene foam, melt pelletization is used as a raw material for injection molding, while it is used as a soil improving material or as a fuel. Etc. are known.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記従来の
利用方法では、溶融ペレタイズを行い、インジェクショ
ン成型の原料に用いる場合、溶融ペレタイズに大きなコ
ストが発生し、その上、再度加熱溶融するために、樹脂
の物性劣化を招来すること、また、土壌改良材や燃料に
用いる場合、その付加価値が非常に小さいことから、熱
可塑性樹脂発泡体の再利用としてのメリットが少なく、
その再利用の推進を抑制するという問題を生じている。However, in the above conventional utilization method, when melt pelletization is performed and used as a raw material for injection molding, a large cost is generated in the melt pelletization, and in addition, since it is heated and melted again, It causes deterioration of the physical properties of the resin, and when it is used as a soil improver or fuel, its added value is very small, so there is little merit as a reuse of the thermoplastic resin foam,
There is a problem of restraining the promotion of reuse.
【０００４】[0004]
【課題を解決するための手段】請求項１記載の熱可塑性
樹脂発泡体の減容品のプレス成形体は、以上の課題を解
決するために、嵩密度 0.1〜0.5 ｇ／cm3 に減容された
熱可塑性樹脂発泡体の減容品が、加熱を伴うプレス成形
により、表面が溶融固化されたものであることを特徴と
している。[Means for Solving the Problems] In order to solve the above problems, the press-molded product of the volume-reduced thermoplastic resin foam according to claim 1 has a volume density of 0.1 to 0.5 g / cm 3 . The volume-reduced thermoplastic resin foamed product is characterized in that its surface is melted and solidified by press molding accompanied by heating.
【０００５】請求項２記載の熱可塑性樹脂発泡体の減容
品のプレス成形体は、以上の課題を解決するために、嵩
密度 0.1〜0.5 ｇ／cm3 に減容された熱可塑性樹脂発泡
体の減容品が、加熱を伴うプレス成形により、表面が溶
融固化され、かつ、内部に多数の空洞部を有しているも
のであることを特徴としている。In order to solve the above problems, the press-molded product of the volume-reduced thermoplastic resin foam according to claim 2 has a volume-reduced thermoplastic resin foam volume of 0.1 to 0.5 g / cm 3. The body volume-reduced product is characterized in that the surface is melted and solidified by press molding accompanied by heating and has a large number of hollow portions inside.
【０００６】上記嵩密度は、 0.1ｇ／cm3 未満であれ
ば、プレスの時点で、減容品の粒子がつぶれてしまい内
部に空洞部が形成できない、あるいは充分な強度が得ら
れない。また、上記嵩密度は、0.5 ｇ／cm3 を越える
と、得られたプレス成形体の嵩密度が大きくなり、軽量
化というメリットが得られなくなる。If the bulk density is less than 0.1 g / cm 3 , the particles of the volume-reduced product will be crushed at the time of pressing, and voids cannot be formed inside, or sufficient strength cannot be obtained. On the other hand, if the bulk density exceeds 0.5 g / cm 3 , the obtained press-molded body has a large bulk density, and the merit of weight reduction cannot be obtained.
【０００７】[0007]
【作用】上記の請求項１記載の構成によれば、嵩密度
0.1〜0.5 ｇ／cm3 に減容した減容品を用い、プレス成
形により表面が溶融固化されているから、充分な強度を
備えたプレス成形体とすることができ、かつ、軽量なも
のとすることができる。According to the structure described in claim 1, the bulk density is
Using a volume-reduced product reduced to 0.1 to 0.5 g / cm 3 and the surface being melt-solidified by press molding, a press-formed product with sufficient strength can be obtained, and it is also lightweight. can do.
【０００８】上記の請求項２記載の構成によれば、さら
に、空洞部を設けたから、より軽量化することができ、
かつ、断熱性も向上できる。According to the structure described in claim 2, since the hollow portion is further provided, the weight can be further reduced,
In addition, the heat insulating property can be improved.
【０００９】[0009]
〔実施例１〕本発明の一実施例を実施例１として図１お
よび図２に基づいて説明すれば、以下の通りである。熱
可塑性樹脂発泡体の減容品のプレス成形体では、熱可塑
性樹脂発泡体として、ビーズ発泡成形による見掛け密度
が、例えば0.02ｇ／cm3 の発泡ポリスチレン成形体の減
容品を原料として用いる。上記減容品は、発泡体用減容
機ＦＭ−２５（積水化成品工業株式会社製）により破砕
され加熱減容されたものである。上記減容品は、その嵩
密度が 0.3ｇ／cm3 であり、また、上記減容品の粒子の
大きさは、最大のもので直径φ20mm程度であった。[Embodiment 1] The following will describe one embodiment of the present invention as Embodiment 1 with reference to FIGS. 1 and 2. In the press-molded product of the volume-reduced product of the thermoplastic resin foam, the volume-reduced product of the expanded polystyrene molded product having an apparent density of, for example, bead foam molding of 0.02 g / cm 3 is used as the raw material as the thermoplastic resin foam. The volume-reduced product is crushed by a foam volume-reducing machine FM-25 (manufactured by Sekisui Plastics Co., Ltd.) to reduce the volume by heating. The volume-reduced product had a bulk density of 0.3 g / cm 3 , and the maximum particle size of the volume-reduced product was about 20 mm in diameter.
【００１０】次に、上記減容品を用いてプレス成形体を
製造する工程について説明すると、まず、図２に示すよ
うに、上記のようにして得られた減容品１を、雌金型２
に所定量投入してほぼ均一の厚さにならし、続いて、減
容品１の上面全体を押さえるように雄金型３を重ね合わ
せた後、プレス機のプランジャ４により加圧した。な
お、上記各金型２・３の減容品１との当接面は鏡面仕上
げとなっている。Next, the process for producing a press-molded product using the above-mentioned volume-reduced product will be described. First, as shown in FIG. 2, the volume-reduced product 1 obtained as described above is put into a female mold. Two
Then, a predetermined amount was charged to obtain a substantially uniform thickness, and subsequently, male molds 3 were superposed so as to press the entire upper surface of the volume-reduced product 1, and then pressure was applied by a plunger 4 of a press machine. The contact surface of each of the molds 2 and 3 with the volume-reduced product 1 is mirror-finished.
【００１１】このとき、上記各金型２・３の加熱温度
は、上記減容品１を溶融することのできる 150℃に設定
され、加熱プレス時間は５分間、プランジャ４によるプ
レス圧力は 3.5Kg／cm2 にて、雌金型２に投入された減
容品１の厚さを１／2.5 となるまで圧縮してプレス成形
を行い、略長方形板状のプレス成形板５を得た。At this time, the heating temperature of each of the molds 2 and 3 is set to 150 ° C. at which the volume-reduced product 1 can be melted, the heating press time is 5 minutes, and the pressing pressure by the plunger 4 is 3.5 Kg. / Cm 2 , the thickness of the volume-reduced product 1 charged into the female mold 2 was compressed to 1 / 2.5 and press-molded to obtain a substantially rectangular plate-shaped press-molded plate 5.
【００１２】上記プレス成形板５の表面は、各金型２・
３に当接する部位から内部に向かって順次溶融し易いか
ら、図１に示すように、各金型２・３に当接する部位の
減容品１から順次溶融し、固化して厚さ５mm程度の樹脂
層５ａが形成され、かつ、その樹脂層５ａの表面５ｂは
平滑なものとなっていた。The surface of the press-molded plate 5 is formed on each mold 2.
As it is easy to melt from the part that contacts 3 to the inside, as shown in FIG. 1, the volume-reduced product 1 at the part that contacts each mold 2 and 3 is sequentially melted and solidified to a thickness of about 5 mm. The resin layer 5a was formed, and the surface 5b of the resin layer 5a was smooth.
【００１３】上記のようにして得られたプレス成形板５
は、嵩密度が 0.6ｇ／cm3 で軽量であり、上記各樹脂層
５ａよりも中心に近い部分については、減容品１が殆ど
溶融しないでそれらの粒子同士が相互に融着、あるいは
接合した状態で、相互の各粒子間に、内部に空間を有す
る粟おこし状の空洞部５ｃが多数形成されていた。Press-molded plate 5 obtained as described above
Has a bulk density of 0.6 g / cm 3 and is lightweight, and in the portion closer to the center than each of the resin layers 5a, the volume-reduced article 1 hardly melts and the particles are fused or bonded to each other. In this state, a large number of millet-like hollow portions 5c having a space inside were formed between the respective particles.
【００１４】このような上記プレス成形板５は、空洞部
５ｃを有して軽量で、溶融して固化した樹脂層５ａによ
り充分な強度を備え、その上、空洞部５ｃにより断熱性
に優れ、さらに、その表面５ｂが平滑で外観や寸法性に
優れたものとなっている。The press-molded plate 5 as described above has a hollow portion 5c, is lightweight, has sufficient strength due to the resin layer 5a which is melted and solidified, and has excellent heat insulation due to the hollow portion 5c. Further, the surface 5b is smooth and has excellent appearance and dimensional properties.
【００１５】したがって、上記プレス成形板５は、家具
等に好適に用いることができるから、使用済や不良品等
の発泡ポリスチレン成形体を再生した際の付加価値を高
めることができて、上記発泡ポリスチレン成形体の再利
用を促進できるものとなっている。Therefore, since the press-molded plate 5 can be suitably used for furniture and the like, it is possible to increase the added value when reclaiming a foamed polystyrene molded product such as a used product or a defective product, and the foamed product described above. It is possible to promote the reuse of the polystyrene molded body.
【００１６】〔実施例２〕次に、本発明の他の実施例を
実施例２として図３に基づいて説明する。上記実施例１
における加熱時間５分間に代えて、加熱プレス時間を３
分間とし、他は上記実施例１と同様の条件にて、図３に
示すプレス成形板６（嵩密度 0.4ｇ／cm3）を得た。そ
のプレス成形板６では、その表面６ａはほぼ平滑とな
り、樹脂層６ｂを備えるが、その表面６ａ部位が完全に
樹脂層化しているのではなく、樹脂層６ｂに孔部６ｃが
ほぼ厚さ方向に形成される一方、上記孔部６ｃに連通す
る多数の空洞部６ｄが内部に形成されていた。[Second Embodiment] Next, another embodiment of the present invention will be described as a second embodiment with reference to FIG. Example 1 above
Instead of the heating time of 5 minutes in
The press forming plate 6 (bulk density 0.4 g / cm 3 ) shown in FIG. 3 was obtained under the same conditions as in Example 1 except for the above time. The press-molded plate 6 has a surface 6a that is substantially smooth and has a resin layer 6b. However, the surface 6a is not completely resin-layered, and a hole 6c is formed in the resin layer 6b in a substantially thickness direction. On the other hand, a large number of cavities 6d communicating with the holes 6c were formed inside.
【００１７】これにより、上記プレス成形板６は、その
一方の表面６ａに水を垂らすと、その水は、表面６ａの
孔部６ｃから空洞部６ｄに進入して裏側となる他方の表
面６ａの孔部６ｃから流れ出るという透水性を備えてい
た。したがって、上記プレス成形体６は、さらに、通気
性や透水性を備えていて、換気などが必要な押入れ等の
敷き板や仕切り板等に好適に使用でき、発泡ポリスチレ
ン成形体の再利用を促進できるものとなっている。As a result, when water is dropped on one surface 6a of the press-molded plate 6, the water enters the cavity 6d from the hole 6c of the surface 6a, and the water on the other surface 6a on the other side. It had a water permeability of flowing out from the hole 6c. Therefore, the press-molded body 6 is further provided with air permeability and water permeability, and can be suitably used as a floor plate or partition plate for a closet or the like that requires ventilation, etc., and promotes reuse of the expanded polystyrene molded body. It is possible.
【００１８】〔実施例３〕次に、本発明のさらに他の実
施例を実施例３として、図２および図４ないし図６に基
づいて説明する。まず、熱可塑性樹脂発泡体の減容品の
プレス成形体では、熱可塑性樹脂発泡体としての発泡ポ
リスチレン成形体の減容品を原料として用い、そのよう
な減容品は、例えば発泡体用減容機ＦＭ−２５（積水化
成品工業株式会社製）により、上記発泡ポリスチレン成
形体を破砕し、加熱減容して得られた。[Embodiment 3] Next, still another embodiment of the present invention will be described as Embodiment 3 with reference to FIGS. 2 and 4 to 6. First, in a press-molded product of a volume-reduced product of a thermoplastic resin foam, a volume-reduced product of a foamed polystyrene molded body as a thermoplastic resin foam is used as a raw material. It was obtained by crushing the expanded polystyrene molded product with a machine FM-25 (manufactured by Sekisui Plastics Co., Ltd.) and heating to reduce the volume.
【００１９】上記発泡ポリスチレンとして、発泡ポリス
チレン成形体の製造時に不可避的に副生するバリや不良
品等の発泡ポリスチレン廃材を用い、未使用で、無着
色、つまり白色のものを用いた。上記減容品は、その嵩
密度が 0.3ｇ／cm3 となっており、上記減容品の粒子の
大きさが、最大のもので直径φ20mm程度となっていた。As the expanded polystyrene, waste expanded polystyrene such as burrs and defective products which are inevitably produced as a by-product during the manufacture of expanded polystyrene molded product is used, and unused, uncolored, that is, white one is used. The volume-reduced product had a bulk density of 0.3 g / cm 3, and the maximum particle size of the volume-reduced product was about 20 mm in diameter.
【００２０】図２に示すように、上記減容品１を、上記
実施例１と同様にして、金型２・３の加熱温度 150℃、
プランジャ４によるプレス圧力 3.5Kg／cm2 にてプレス
成形を行った。加熱時間は10分間、プレスは厚さを１／
３となるまで圧縮して、図４に示すように、プレス成形
体７を得た。As shown in FIG. 2, the volume-reduced product 1 was processed in the same manner as in Example 1 by heating the molds 2 and 3 at a temperature of 150.
Press molding was performed at a pressing pressure of 3.5 Kg / cm 2 by the plunger 4. Heating time is 10 minutes, press is 1 / thick
It was compressed to 3 to obtain a press-molded body 7 as shown in FIG.
【００２１】上記プレス成形体７では、嵩密度が 0.7ｇ
／cm3 で、その各表面７ａより７mm程度の深さまで溶融
固化した状態の透明な樹脂層７ｂがそれぞれ形成され、
内部も各減容品１の各粒子が密にセル状に接着した緻密
な状態であり、さらに、その表面７ａを通して、偏平と
なった各減容品１の各粒子の形状が模様となって見え、
図５に示すように、大理石模様、つまりマーブル模様８
が形成されていた。The press-molded body 7 has a bulk density of 0.7 g.
/ In cm 3, a transparent resin layer 7b of a molten state and solidified to 7mm to a depth of about from their respective surfaces 7a are formed respectively,
The inside is also in a dense state in which the particles of each volume-reduced product 1 are densely adhered in a cell shape, and furthermore, the flat shape of each particle of each volume-reduced product 1 is patterned through the surface 7a. Look,
As shown in FIG. 5, marble pattern, that is, marble pattern 8
Had been formed.
【００２２】よって、上記プレス成形体７は、軽量で、
溶融して固化した樹脂層７ｂにより所定の強度を備え、
かつ、マーブル模様８を有して外観に優れるから、机等
の家具の化粧板として好適に用いることができる。この
ことから、発泡ポリスチレン廃材を再生した際の付加価
値を高めることができて、上記発泡ポリスチレン廃材の
再利用を促進できるものとなる。Therefore, the press-molded body 7 is lightweight and
The resin layer 7b that has been melted and solidified has a predetermined strength,
Moreover, since it has the marble pattern 8 and has an excellent appearance, it can be suitably used as a decorative plate for furniture such as a desk. From this, it is possible to increase the added value when the expanded polystyrene waste material is recycled, and to promote the reuse of the expanded polystyrene waste material.
【００２３】また、上記実施例３における減容品の嵩密
度や粒度を調整して、プレス成形品を調製することによ
り、例えば図６に示すように、目の細かい大理石模様９
が表面７ａを通して見えるプレス成形体７を得ることが
できた。Further, by adjusting the bulk density and particle size of the volume-reduced product in Example 3 to prepare a press-formed product, for example, as shown in FIG.
It was possible to obtain a press-molded body 7 in which is visible through the surface 7a.
【００２４】その上、上記実施例３において、減容品の
嵩密度や粒度の分布範囲を広くすることにより、例え
ば、上記減容品を雌金型に充填する際に、振動等により
充填した減容品の層に、厚さ方向に粒度が順に変化する
粒度分布を形成した後、プレス成形してプレス成形体を
得ることにより、上記プレス成形体に、その一面に例え
ば図５に示すマーブル模様８を形成し、その他面に例え
ば図６に示す大理石模様９を形成することができる。In addition, in Example 3, by increasing the bulk density and particle size distribution range of the volume-reduced product, for example, when the volume-reduced product was filled in the female mold, it was filled by vibration or the like. After forming a particle size distribution in which the particle size sequentially changes in the thickness direction in the layer of the volume-reduced product, press molding is performed to obtain a press molded product, and the press molded product has one surface, for example, marble shown in FIG. The pattern 8 can be formed, and the marble pattern 9 shown in FIG. 6 can be formed on the other surface.
【００２５】よって、一枚のプレス成形体に２種類の模
様を形成できるから、さらに、上記プレス成形体は、付
加価値を高めることができて、発泡ポリスチレン廃材の
再利用を促進できるものとなる。Therefore, since two types of patterns can be formed on one press-molded article, the above-mentioned press-molded article can increase the added value and promote the reuse of the expanded polystyrene waste material. .
【００２６】なお、上記各実施例では、減容品１に有色
のものを用いることも可能であり、それにより、有用な
種々な模様を形成することもできる。また、上記各実施
例では、発泡ポリスチレン発泡体を用いた例を挙げた
が、熱可塑性樹脂発泡体であれば上記に限定されること
はなく、例えば発泡ポリエチレン成形体、発泡ポリプロ
ピレン成形体、または、スチレン改質発泡ポリエチレン
成形体等の共重合体の発泡成形体等を用いることができ
る。In each of the above-mentioned embodiments, it is possible to use a colored product as the volume-reduced product 1 so that various useful patterns can be formed. Further, in each of the above examples, an example using the expanded polystyrene foam was given, but the thermoplastic resin foam is not limited to the above. For example, expanded polyethylene molded product, expanded polypropylene molded product, or A foamed molded product of a copolymer such as a styrene-modified foamed polyethylene molded product can be used.
【００２７】一方、上記各実施例における加熱温度、プ
レス圧力および加熱時間は、用いる熱可塑性樹脂発泡体
の溶融温度、得られるプレス成形体の形状、用いる減容
品の物性等により応じて変更でき、例えば、加熱温度は
100〜200 ℃、プレス圧力は1.0〜5.0 Kg／cm2 、加熱
時間は２〜10分間が好ましい。On the other hand, the heating temperature, the press pressure and the heating time in each of the above examples can be changed according to the melting temperature of the thermoplastic resin foam used, the shape of the press molded product to be obtained, the physical properties of the volume-reduced product used and the like. , For example, the heating temperature is
It is preferable that the pressure is 100 to 200 ° C., the press pressure is 1.0 to 5.0 Kg / cm 2 , and the heating time is 2 to 10 minutes.
【００２８】なお、上記各実施例では、各金型２・３の
減容品１との当接面は鏡面仕上げとした例を挙げたが、
上記に限定されることはなく、例えば、プレス成形体の
表面に凹凸による細かい模様や艶消し等を形成するため
に、上記金型２・３の減容品１との当接面に凹凸を予め
形成してもよい。In each of the above-mentioned embodiments, the contact surface of the respective molds 2 and 3 with the volume-reduced product 1 is mirror finished.
The present invention is not limited to the above, and for example, in order to form a fine pattern or matteness due to unevenness on the surface of the press-molded body, unevenness is provided on the contact surface of the molds 2 and 3 with the volume-reduced product 1. It may be formed in advance.
【００２９】[0029]
【発明の効果】本発明の請求項１記載の熱可塑性樹脂発
泡体の減容品のプレス成形体は、以上のように、嵩密度
0.1〜0.5 ｇ／cm3 に減容された熱可塑性樹脂発泡体の
減容品が、加熱を伴うプレス成形により、表面が溶融固
化された構成である。As described above, the press-molded product of the volume-reduced thermoplastic resin foam according to claim 1 of the present invention has a bulk density of
A volume-reduced thermoplastic resin foam reduced to 0.1 to 0.5 g / cm 3 has a structure in which the surface is melted and solidified by press molding accompanied by heating.
【００３０】それゆえ、上記構成は、軽量で、充分な強
度を備えるから、家具等の化粧板等に好適に使用できる
から、熱可塑性樹脂発泡体の再利用の際の付加価値を高
めることができて、その再利用を促進できるという効果
を奏する。Therefore, the above structure is lightweight and has sufficient strength, so that it can be suitably used for a decorative board such as furniture and the like, so that the added value when the thermoplastic resin foam is reused can be increased. It has the effect of being able to promote its reuse.
【００３１】本発明の請求項２記載の熱可塑性樹脂発泡
体の減容品のプレス成形体は、以上のように、嵩密度
0.1〜0.5 ｇ／cm3 に減容された熱可塑性樹脂発泡体の
減容品が、加熱を伴うプレス成形により、表面が溶融固
化され、かつ、内部に多数の空洞部を有している構成で
ある。The press-molded product of the volume-reduced thermoplastic resin foam according to claim 2 of the present invention has the bulk density as described above.
A volume-reduced thermoplastic resin foam reduced to 0.1 to 0.5 g / cm 3 has a surface melted and solidified by press molding accompanied by heating, and has many cavities inside. Is.
【００３２】それゆえ、上記構成は、さらに、軽量性お
よび断熱性を向上できて、家具等の化粧板等に好適に使
用できるから、熱可塑性樹脂発泡体の再利用の際の付加
価値を高めることができて、その再利用を促進できると
いう効果を奏する。Therefore, the above structure can further improve the lightness and the heat insulating property, and can be suitably used for the decorative board of furniture and the like, thereby increasing the added value when the thermoplastic resin foam is reused. Therefore, it is possible to promote the reuse.
【図１】本発明の実施例１のプレス成形板の要部断面図
である。FIG. 1 is a cross-sectional view of essential parts of a press-formed plate according to a first embodiment of the present invention.
【図２】本発明の熱可塑性樹脂発泡体の減容品のプレス
成形体の製造方法を示す工程図である。FIG. 2 is a process drawing showing a method for producing a press-molded product of a volume-reduced thermoplastic resin foam of the present invention.
【図３】本発明の実施例２のプレス成形板の要部断面図
である。FIG. 3 is a cross-sectional view of essential parts of a press-formed plate according to a second embodiment of the present invention.
【図４】本発明の実施例３のプレス成形板の要部断面図
である。FIG. 4 is a cross-sectional view of essential parts of a press-formed plate according to a third embodiment of the present invention.
【図５】上記プレス成形板の要部平面図である。FIG. 5 is a plan view of an essential part of the press-formed plate.
【図６】上記プレス成形板の一変形例の要部平面図であ
る。FIG. 6 is a plan view of an essential part of a modified example of the press-formed plate.
１ 減容品 ５ｂ 表面 1 Reduced volume 5b Surface
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:26 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B29K 105: 26
Claims (2)
可塑性樹脂発泡体の減容品が、加熱を伴うプレス成形に
より、表面が溶融固化されたものであることを特徴とす
る熱可塑性樹脂発泡体の減容品のプレス成形体。1. A volume-reduced thermoplastic resin foam reduced in volume density to 0.1 to 0.5 g / cm 3 has a surface melted and solidified by press molding accompanied by heating. Press-molded product of volume-reduced thermoplastic resin foam.
可塑性樹脂発泡体の減容品が、加熱を伴うプレス成形に
より、表面が溶融固化され、かつ、内部に多数の空洞部
を有しているものであることを特徴とする熱可塑性樹脂
発泡体の減容品のプレス成形体。2. A volume-reduced thermoplastic resin foam having a volume density of 0.1 to 0.5 g / cm 3 is melted and solidified on the surface by press molding accompanied by heating, and has a large number of cavities inside. A press-molded product of a volume-reduced thermoplastic resin foam, characterized in that it has a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2822493A JPH06238688A (en) | 1993-02-17 | 1993-02-17 | Press molded form of volume-reduced article of thermoplastic resin foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2822493A JPH06238688A (en) | 1993-02-17 | 1993-02-17 | Press molded form of volume-reduced article of thermoplastic resin foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06238688A true JPH06238688A (en) | 1994-08-30 |
Family
ID=12242648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2822493A Pending JPH06238688A (en) | 1993-02-17 | 1993-02-17 | Press molded form of volume-reduced article of thermoplastic resin foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06238688A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7365151B2 (en) | 2002-05-14 | 2008-04-29 | Shigenobu Hamano | Solvent for treating polystyrene resin and method of treating polystyrene resin with the same |
| JP2013078568A (en) * | 2011-09-22 | 2013-05-02 | Mitsuruya Manufacturing Co Ltd | Furniture of regenerated foamed polystyrene resin |
-
1993
- 1993-02-17 JP JP2822493A patent/JPH06238688A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7365151B2 (en) | 2002-05-14 | 2008-04-29 | Shigenobu Hamano | Solvent for treating polystyrene resin and method of treating polystyrene resin with the same |
| JP2013078568A (en) * | 2011-09-22 | 2013-05-02 | Mitsuruya Manufacturing Co Ltd | Furniture of regenerated foamed polystyrene resin |
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