JPS6311337A - Multilayer molding method of synthetic resin material and multilayer molded form - Google Patents
Multilayer molding method of synthetic resin material and multilayer molded formInfo
- Publication number
- JPS6311337A JPS6311337A JP15582886A JP15582886A JPS6311337A JP S6311337 A JPS6311337 A JP S6311337A JP 15582886 A JP15582886 A JP 15582886A JP 15582886 A JP15582886 A JP 15582886A JP S6311337 A JPS6311337 A JP S6311337A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- resin material
- multilayer
- molded product
- molding
- 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
- 238000000465 moulding Methods 0.000 title claims description 28
- 229920003002 synthetic resin Polymers 0.000 title claims description 27
- 239000000057 synthetic resin Substances 0.000 title claims description 27
- 239000000463 material Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 11
- 239000011521 glass Substances 0.000 claims description 16
- 239000004005 microsphere Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 16
- 230000005484 gravity Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は合成樹脂材ネ；Ｉの多層成形方法及び多層成形
品に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a multilayer molding method and a multilayer molded product of synthetic resin material (I).
（従来の技術）
第３図は従来の多層成形品を示す断面図である。この多
層成形品（１３）は例えば合成樹脂材料にたくさんの気
泡（１２ｂ）・・・を含めた低比重層（１３Ｂ）と気泡
を含まない高比重層（＋３Ａ）とを接着層（２ｏ）を介
して貼合わぜたもので、この多層成形品（１３）を例え
ば自動ｉ１ｊ ？のインストルメントパネル等に使用し
た場合には、前記高比重層（１３Ａ）をパネル表面側と
することで、該高比重層（１３Ａ）は低比重層側を保護
し、又パネルの美感を高めるとともに、低比重層（１３
０）は断熱材として作用し、車室内の空調効果を高める
。(Prior Art) FIG. 3 is a sectional view showing a conventional multilayer molded product. This multilayer molded product (13) is made of, for example, a synthetic resin material with a low specific gravity layer (13B) containing many air bubbles (12b) and a high specific gravity layer (+3A) that does not contain air bubbles, and an adhesive layer (2o). This multilayer molded product (13) is laminated together through an automatic i1j? When used in an instrument panel, etc., by placing the high specific gravity layer (13A) on the panel surface side, the high specific gravity layer (13A) protects the low specific gravity layer side and also enhances the aesthetic appearance of the panel. Along with this, the low specific gravity layer (13
0) acts as a heat insulator and enhances the air conditioning effect in the vehicle interior.
（発明が解決しようとする問題点）
ところでこのような多層成形品の生産は、例えば前述し
た自動１！（のインストルメントパネル等にあっては、
低比重層と高比重層とを夫々別個に成形用金型により成
形し、しかる後に接着剤によりこれらを層状に重ね合わ
せるように貼り付けることで行っているが、このような
生産方法にあっては夫々の成形用金型を必要とするとと
もに貼り付は等の手間がかかりコスト高となる。(Problems to be Solved by the Invention) By the way, the production of such multilayer molded products is possible, for example, by the above-mentioned automatic 1! (For instrument panels, etc.,
The low specific gravity layer and the high specific gravity layer are molded separately using molds, and then they are pasted together in a layered manner using an adhesive. requires separate molding molds, and attaching them requires time and effort, resulting in high costs.
そこで本発明はかかる従来の問題点を解決すべく成ｙれ
だもので、その目的とする処は生産コストの低い合成樹
脂材料の多層成形方法及び多層成形品を提供するにある
。SUMMARY OF THE INVENTION The present invention was developed to solve these conventional problems, and its purpose is to provide a multilayer molding method for synthetic resin materials and a multilayer molded product with low production costs.
（問題点を解決するための手段及び作用）この目的を達
成するため本発明に係る合成樹脂材料の多層成形方法は
、充填材として中空ガラス微小球（２ｂ）を混入した合
成樹脂材料（２）を成形用金型（１）により所定圧力の
下で成形した後、再び同金型（１）に前記合成樹脂材料
（２ａ）を追加補給し、前回における前記所定圧力より
も低い圧力の下で成形するようにしてなり、又、本発明
に係る合成樹脂材料の多層成形品は、合成樹脂（２ａ）
に充填材として中空ガラス微小球（２ｂ）を混入し、そ
の中空ガラス微小球（２ｈ）を破壊することで前記中空
ガラス微小球（２ｂ）の含有割合を変更せしめた少なく
とも２以上の合成樹脂材料（２）を多層状に一体成形し
てなる。(Means and effects for solving the problem) In order to achieve this object, the method for multilayer molding of synthetic resin material according to the present invention consists of a synthetic resin material (2) mixed with hollow glass microspheres (2b) as a filler. is molded using the molding die (1) under a predetermined pressure, and then the synthetic resin material (2a) is added to the same mold (1) again, and the molding is performed under a pressure lower than the predetermined pressure previously used. The multilayer molded product of the synthetic resin material according to the present invention is made of synthetic resin (2a)
At least two or more synthetic resin materials in which hollow glass microspheres (2b) are mixed as a filler and the content ratio of the hollow glass microspheres (2b) is changed by breaking the hollow glass microspheres (2h). (2) is integrally molded into a multilayered structure.
このような方法及び成形品によれば、一つの成形用金型
により、その成形圧を変更することのみによって多層成
形品を得ることができ、接着剤及び接着工程も不要とな
り生ｌｒコストを大幅に下げることができる。According to such a method and molded product, it is possible to obtain a multilayer molded product by simply changing the molding pressure using a single molding die, and there is no need for adhesives or bonding processes, resulting in a significant reduction in production costs. can be lowered to
（実施例）
以下に本発明の好適実施例を添付図面に基いて説明する
。尚、図面中間−符号は同一対象を示すものとする。(Embodiments) Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Note that reference numerals in the middle of the drawings indicate the same objects.
第１図は本発明による合成樹脂材料の多層成形方法を示
す図である。この方法は、先ず（ａ）で示すように金型
（＋）のキャビティ（Ｉａ）内に合成樹脂材料（２）を
入れ、（ｂ）で示すように高い成形圧（約１００１００
Ｏ／Ｃｍ’程度）にてプレス成形を行う。FIG. 1 is a diagram showing a multilayer molding method of synthetic resin material according to the present invention. In this method, first, as shown in (a), a synthetic resin material (2) is put into the cavity (Ia) of a mold (+), and as shown in (b), a high molding pressure (approximately 100,100
Press molding is performed at a temperature of about O/Cm'.
前記合成樹脂材料（２）は合成樹脂（２ａ） （例えば
、ＰＰ、 ＡＢＳ 、 ポリサルファン、ＰＰＥ 、ポ
リエステル等）に充填材として中空ガラス微小球（２ｂ
）・・・を多数（重量比で３〜５ｏｚ程度）混入したも
ので、（ｂ）で示す成形圧の下でこの中空ガラス微小球
（２ｂ）・・・はその９０％が破壊される。こうして先
ず最初の成形により得られる成形品（３Ａ）は中空ガラ
ス微小球（２ｂ）・・・の含有率が低く合成樹脂（２ａ
）のみからなる成形品とその特性があまり異らない。The synthetic resin material (2) is a synthetic resin (2a) (for example, PP, ABS, polysulfan, PPE, polyester, etc.) containing hollow glass microspheres (2b) as a filler.
)... (approximately 3 to 5 oz by weight), and 90% of these hollow glass microspheres (2b) are destroyed under the molding pressure shown in (b). In this way, the molded product (3A) obtained by the first molding has a low content of hollow glass microspheres (2b)... and a synthetic resin (2a).
) The characteristics are not much different from molded products made only of
次に（Ｃ）で示すように、この成形品（３Ａ）の上から
金型キャビティ（１）内に再び前記合成樹脂材料（２）
を追加補給し、しかる後に（ｄ）で示すように今度は前
回よりも低い成形圧（約１ｏｏｋｇｆ／ｃｆｆ１２程度
）にてプレス成形を行う。この場合、補給された合成樹
脂材料（２）は前回に成形された成形品（３Ａ）を下型
とすべく成形品（３Ａ）と」−型（４）により成形され
るが、成形圧が比較的低いため混入されている中空ガラ
ス微小球（２ｂ）・・・がこの成形において破壊される
ことはほとんどなく、従って後の成形において得られる
成形品（３Ｂ）は、中空ガラス微小球（２ｂ）・・・の
含有率が高く、その特性は前回の成形により得られる成
形品（３Ａ）と大きく異なり、気泡を多穴に含んだ発泡
樹脂の特性に近いものとなる。Next, as shown in (C), the synthetic resin material (2) is poured again into the mold cavity (1) from above this molded product (3A).
After that, as shown in (d), press molding is performed at a lower molding pressure than the previous time (approximately 10 kgf/cff12). In this case, the supplied synthetic resin material (2) is molded using the mold (4) with the molded product (3A) using the previously molded molded product (3A) as the lower mold, but the molding pressure is Because of the relatively low temperature, the hollow glass microspheres (2b)... are hardly destroyed during this molding, and therefore the molded product (3B) obtained in the subsequent molding is )..., and its properties are significantly different from the molded product (3A) obtained by the previous molding, and are close to the properties of foamed resin containing many air bubbles.
こうして最終的にｆ！ｔられる多層成形品（３）は、第
２図に示したように中空カラス微小球かはとんど破壊さ
れその含有率が低い高比重層を構成する成形品（３Ａ）
と、中空ガラス微小球の含有率が高く低比重層を構成す
る成形品（３Ｂ）とからなり、かかる多層成形品（３）
によれば低比重層（３Ｂ）が含む中空ガラス微小球の作
用により、断熱性、防汗性に優れ、又、重ｆ１１の軽減
化が容易に図れるとともに、高比重層（３Ａ）は比較的
硬く低比重層（３Ｂ）の支持パネルとして、又は補強パ
ネルとして機能し、自動車等における各種室内パネル、
冷蔵庫壁、シート部材等広く有効に使用し得る。In this way, finally f! As shown in Figure 2, the multilayer molded product (3) is a molded product (3A) in which the hollow glass microspheres are mostly destroyed and constitute a high specific gravity layer with a low content.
and a molded product (3B) that has a high content of hollow glass microspheres and constitutes a low specific gravity layer, such a multilayer molded product (3)
According to the authors, due to the effect of the hollow glass microspheres contained in the low specific gravity layer (3B), it has excellent heat insulation and sweatproof properties, and the weight f11 can be easily reduced, and the high specific gravity layer (3A) has a relatively low density. Functions as a support panel for a hard, low specific gravity layer (3B) or as a reinforcing panel, and is used as a variety of interior panels in automobiles, etc.
It can be effectively used in a wide range of areas such as refrigerator walls, sheet members, etc.
（発明の効果）
以上の説明により明らかなように本発明によれば、一つ
の成形用金型により、その成形圧を変更することのみに
よって多層成形品を得ることができ、接着剤及び接着工
程も不要となり生産コストを大幅に下げることができる
とともに、複雑な形状を有する多層状の成形品をも極め
て容易に生産することができる。(Effects of the Invention) As is clear from the above explanation, according to the present invention, a multilayer molded product can be obtained by using one molding die only by changing the molding pressure, and the adhesive and bonding process This eliminates the need for production costs, and also makes it possible to produce multilayer molded products with complex shapes extremely easily.
尚、本発明は実施例に■〃′されることはなく、例えば
実施例では成形刃？）、ｊ；）プレス成形について説明
したが射出成形に適用してもよく、又、実施例では多層
成形品として二層のものについて示したが、三層以」二
のものでもよいことは明らかである。It should be noted that the present invention is not limited to the embodiments, and for example, the embodiments include a molded blade. ), j;) Although press molding has been described, it may also be applied to injection molding, and although the examples have shown a two-layer multilayer molded product, it is clear that a three-layer or two-layer molded product may also be used. It is.
第１図は本発明に係る合成樹脂材料の多層成形方法を示
す図、第２図は本発明に係る多層成形品を示す図、第３
図は従来例を示す図である。
そして図面中（１）は成形用金型、（２）は合成樹脂材
料、（２ａ）は合成樹脂、（２ｂ）は中空ガラス微小球
、（３）は多層成形品である。
４’ｒ 許 出 願 人 日本板硝子株式会社代
理人 弁理士 下 １） 容一部間
弁理士 大 橋 邦 溶量 弁理士
小 山 右同 弁理士 野
１） 茂Ａφ−へ ｒ「鏝
ｈｈ ＾第１図
第３図 第２
ＡFIG. 1 is a diagram showing a multilayer molding method of a synthetic resin material according to the present invention, FIG. 2 is a diagram showing a multilayer molded product according to the present invention, and FIG.
The figure shows a conventional example. In the drawings, (1) is a molding die, (2) is a synthetic resin material, (2a) is a synthetic resin, (2b) is a hollow glass microsphere, and (3) is a multilayer molded product. 4'r Applicant: Nippon Sheet Glass Co., Ltd. Agent Patent Attorney 2 1) Volume 1
Patent Attorney Kuni Ohashi Yoshiro Patent Attorney Udo Koyama Patent Attorney No
1) To Shigeru Aφ-
hh ^Figure 1 Figure 3 Figure 2 A
Claims (2)
脂材料を成形用金型により所定圧力の下で成形した後、
再び同金型に前記合成樹脂材料を追加補給し、前回にお
ける前記所定圧力よりも低い圧力の下で成形して合成樹
脂材料の多層成形品を生産するようにしたことを特徴と
する合成樹脂材料の多層成形方法。(1) After molding a synthetic resin material mixed with hollow glass microspheres as a filler under a predetermined pressure using a molding die,
A synthetic resin material characterized in that the same mold is additionally supplied with the synthetic resin material and molded under a pressure lower than the predetermined pressure used previously to produce a multilayer molded product of the synthetic resin material. Multilayer molding method.
混入し、その中空ガラス微小球を破壊することで、前記
中空ガラス微小球の含有割合を変更せしめた少なくとも
２以上の合成樹脂材料を多層状に一体成形してなる合成
樹脂材料の多層成形品。(2) Hollow glass microspheres are mixed into a synthetic resin material as a filler, and the hollow glass microspheres are broken to produce at least two or more synthetic resin materials whose content ratio of the hollow glass microspheres is changed. A multilayer molded product made of synthetic resin material that is integrally molded into layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15582886A JPS6311337A (en) | 1986-07-02 | 1986-07-02 | Multilayer molding method of synthetic resin material and multilayer molded form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15582886A JPS6311337A (en) | 1986-07-02 | 1986-07-02 | Multilayer molding method of synthetic resin material and multilayer molded form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6311337A true JPS6311337A (en) | 1988-01-18 |
Family
ID=15614382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15582886A Pending JPS6311337A (en) | 1986-07-02 | 1986-07-02 | Multilayer molding method of synthetic resin material and multilayer molded form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311337A (en) |
-
1986
- 1986-07-02 JP JP15582886A patent/JPS6311337A/en active Pending
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