JPH0516273U - Degassing device for screen processing machine - Google Patents
Degassing device for screen processing machineInfo
- Publication number
- JPH0516273U JPH0516273U JP063628U JP6362891U JPH0516273U JP H0516273 U JPH0516273 U JP H0516273U JP 063628 U JP063628 U JP 063628U JP 6362891 U JP6362891 U JP 6362891U JP H0516273 U JPH0516273 U JP H0516273U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- temperature
- scraper
- processing machine
- heater
- 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
Abstract
(57)【要約】 （修正有）
【目的】高分子材料のスクリュ−式加工機のシリンダ−
に設けた脱気筒内面での気化成分の凝縮を防止してその
脱気筒内面での液付着を排除し、材料中の粉状成分の脱
気筒内面への付着・堆積に起因する脱ガス効率の低下、
同付着・堆積の脱離・落下による材料への混入に起因す
る成形不良等を良好に防止できるスクリュ−式加工機の
ガス抜き装置を提供する。
【構成】スクリュ−２を内蔵したシリンダ−１にバキュ
−ム式脱気筒３を設け、脱気筒３内面の温度を排出ガス
中に含まれる原料の気化成分の凝縮点以上に加熱するた
めのヒ−タ−６を脱気筒３に取り付けたことを特徴とす
る。
(57) [Summary] (Modified) [Purpose] Polymer material screw type cylinder
The condensation of vaporized components on the inner surface of the de-cylinder provided on the inside of the de-cylinder is prevented and liquid adhesion on the inner surface of the de-cylinder is eliminated. Decline,
(EN) A degassing device for a screw type processing machine capable of satisfactorily preventing molding defects and the like due to mixing of materials due to desorption / fall of adhesion / deposition. [Structure] A vacuum type de-cylinder 3 is provided in a cylinder-1 having a screw-2 built-in to heat the inner surface of the de-cylinder 3 to a temperature above the condensation point of the vaporized component of the raw material contained in the exhaust gas. It is characterized in that the ta-6 is attached to the de-cylinder 3.
Description
【０００１】[0001]
本考案は高分子材料の押出成形機等のスクリュ−式加工機におけるガス抜き装 置に関するものである。 The present invention relates to a degassing device in a screw type processing machine such as an extruder for polymer materials.
【０００２】[0002]
合成樹脂、ゴム等の高分子材料を押出成形機によって押出成形する場合、材料 中に低沸点の揮発性物質が含有されていると、シリンダ−熱で揮発性物質が気化 によりガス化され、成形圧力の如何によってはボイド発生等の成形不良が惹起さ れる。 When polymer materials such as synthetic resin and rubber are extruded by an extruder, if the material contains a low boiling point volatile substance, the volatile substance is gasified by vaporization due to cylinder heat, and molding is performed. Molding defects such as voids may occur depending on the pressure.
【０００３】 したがって、ガス抜きを必要とすることがあり、従来、このガス抜きのために 、押出機のシリンダ−に脱気筒を設け、この脱気筒内を減圧し、この減圧下で材 料中の揮発性物質を気化によりガス化して脱ガスすることが知られている。Therefore, degassing is sometimes required, and conventionally, for this degassing, a de-cylinder is provided in the cylinder of the extruder, the inside of the de-cylinder is decompressed, and the material is decompressed under this decompressed state. It is known that the volatile substances in the above are gasified and degassed by vaporization.
【０００４】[0004]
上記において材料中の揮発性物質の気化は、上記減圧圧力のもとでの揮発性物 質の気化温度に比べて、シリンダ−内の温度が高いために生じる。而るに、脱気 筒内面の温度はシリンダ−内の温度よりも低温であり、脱気筒内に入つた気化成 分が上記気化時の減圧圧力と略同一圧力下、同上気化時のシリンダ−内温度より も低温の脱気筒内面に接触すると、その気化成分が凝縮により液化することがあ り得る。 In the above, the vaporization of the volatile substance in the material occurs because the temperature inside the cylinder is higher than the vaporization temperature of the volatile substance under the reduced pressure. Thus, the temperature of the inner surface of the degassing cylinder is lower than the temperature inside the cylinder, and the vaporization component that has entered the degassing cylinder is under substantially the same pressure as the depressurization pressure at the time of vaporization, and the same as above. If it contacts the inner surface of the de-cylinder whose temperature is lower than the internal temperature, the vaporized component may be condensed and liquefied.
【０００５】 かかる液化の発生下では、脱気筒内面に液が付着し、上記排出ガス中に混入さ れている材料中の粉状成分が脱気筒内面に顕著に付着し、堆積して脱気筒の通路 が狭くなって脱ガス効率の低下が避けられない。この粉状成分の堆積が進行し、 その重量がある限界に達すると、その堆積物が脱離・落下して脱気筒の脱ガス効 率がある程度回復される。従って、脱ガス効率の低下、回復が繰り返され、脱ガ ス効率が不安定化し、効率のよい脱ガスを期待し難い。When such liquefaction occurs, liquid adheres to the inner surface of the de-cylinder, and the powdery components in the material mixed in the exhaust gas noticeably adhere to the inner surface of the de-cylinder and accumulate to de-cylinder. The narrowing of the passage inevitably reduces the degassing efficiency. When the accumulation of this powdery component progresses and its weight reaches a certain limit, the deposit is desorbed and drops, and the degassing efficiency of the decylinder is restored to some extent. Therefore, the degassing efficiency is repeatedly lowered and recovered, the degassing efficiency becomes unstable, and it is difficult to expect efficient degassing.
【０００６】 また、粉状成分が脱気筒内面に付着している間、この粉状成分においては滞留 状態にあり、この滞留物のシリンダ−に近い箇所では熱分解による劣化の畏れも あり、この劣化成分の混入による成形不良も懸念される。Further, while the powdery component adheres to the inner surface of the de-cylinder, the powdery component is in a stagnation state, and there is a fear of deterioration due to thermal decomposition in a portion of the stagnation material near the cylinder. There is also concern about defective molding due to the inclusion of deterioration components.
【０００７】 本考案の目的は、高分子材料のスクリュ−式加工機のシリンダ−に設けた脱気 筒内面での気化成分の凝縮を防止してその脱気筒内面での液付着を排除し、材料 中の粉状成分の脱気筒内面への付着・堆積に起因する脱ガス効率の低下、同付着 ・堆積の脱離・落下による材料への混入に起因する成形不良等を良好に防止でき るスクリュ−式加工機のガス抜き装置を提供することにある。An object of the present invention is to prevent condensation of vaporized components on the inner surface of a deaeration cylinder provided in a cylinder of a screw type processing machine made of a polymer material, thereby eliminating liquid adhesion on the inner surface of the deaeration cylinder. Degassing efficiency decreases due to adhesion / accumulation of powdery components to the inner surface of de-cylinder in the material, and it is possible to satisfactorily prevent molding defects etc. due to desorption of adhesion / desorption of deposition / mixing into material due to dropping. An object is to provide a degassing device for a screw type processing machine.
【０００８】[0008]
本考案のスクリュ−式加工機の脱ガス装置はスクリュ−を内蔵したシリンダ− にバキュ−ム式脱気筒を設け、脱気筒内面の温度を排出ガス中に含まれる原料の 気化成分の凝縮点以上に加熱するためのヒ−タ−を脱気筒に取り付けたことを特 徴とする構成であり、脱気筒内に脱気筒内面に付着した材料をシリンダ−内に戻 すスクレパ−を設け、該スクレパ−の温度を排出ガス中の気化成分の凝固点以上 に加熱するためのヒ−タ−をスクレパ−に取り付けることもできる。 The degassing apparatus of the screw type processing machine of the present invention is provided with a vacuum type decylinder in a cylinder having a screw built in, and the temperature of the inner surface of the decylinder is equal to or higher than the condensation point of the vaporized component of the raw material contained in the exhaust gas. It is characterized in that a heater for heating the inside of the cylinder is attached to the cylinder, and a scraper for returning the material adhering to the inner surface of the cylinder to the inside of the cylinder is provided inside the cylinder. A heater for heating the temperature of − above the freezing point of the vaporized component in the exhaust gas can be attached to the scraper.
【０００９】[0009]
シリンダ−内の材料中の揮発性成分が真空引きによる減圧下、シリンダ−内温 度で気化によりガス化し、このガス化した気化成分が脱気筒内面やスクレパ−表 面に接触するが、脱気筒内面やスクレパ−表面を上記気化成分が凝縮しない温度 に加熱できるから、上記接触にもかかわらず気化成分の凝縮・液化を防止できる 。従って、脱気筒内面並びにスクレパ−表面での液付着を防止でき、排出ガス中 に混入する粉状成分の脱気筒内面並びにスクレパ−表面への付着を充分に軽減で き、脱気筒内の連通性をよく保持でき、脱ガス効率を安定に維持できる。 Volatile components in the material inside the cylinder are gasified by vaporization at the internal temperature of the cylinder under reduced pressure by vacuuming, and the gasified vaporized components come into contact with the inner surface of the decylinder and the surface of the scraper. Since the inner surface and the scraper surface can be heated to a temperature at which the vaporized component does not condense, the vaporized component can be prevented from condensing and liquefying despite the contact. Therefore, it is possible to prevent the liquid from adhering to the inner surface of the de-cylinder and the scraper surface, and to sufficiently reduce the adhesion of powdery components mixed in the exhaust gas to the inner surface of the de-cylinder and the scraper surface, and to improve the communication in the de-cylinder. Can be maintained well and the degassing efficiency can be stably maintained.
【００１０】[0010]
以下、図面により本考案の実施例を説明する。 図１は本考案の実施例を示す説明図である。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of the present invention.
【００１１】 図１において、１は高分子材料のスクリュ−式加工機のシリンダ−、例えば、 スクリュ−式押出成形機、スクリュ−式混練機のシリンダ−、２はシリンダ−１ 内に設けたスクリュ−である。３はシリンダ−１に設けた脱気筒である。４は透 視板であり、脱気筒３をＯリングを介して気密に蓋閉している。５は脱気筒３に 連結したバキュ−ム管である。６は脱気筒３に巻着した通電式のバンドヒ−タ− 、７は脱気筒内面３０の温度を検出するために設けた温度センサ−である。８は バキュ−ム管５に連結した真空ポンプである。In FIG. 1, 1 is a cylinder of a screw type processing machine for polymer materials, for example, a cylinder of a screw type extruder, a screw type kneader, and 2 is a screw provided in a cylinder-1. − 3 is a de-cylinder provided in the cylinder-1. Reference numeral 4 is a see-through plate, which hermetically closes the de-cylinder 3 via an O-ring. Reference numeral 5 is a vacuum tube connected to the de-cylinder 3. Reference numeral 6 is an electrically conductive band heater wound around the de-cylinder 3, and 7 is a temperature sensor provided to detect the temperature of the inner surface 30 of the de-cylinder. Reference numeral 8 is a vacuum pump connected to the vacuum tube 5.
【００１２】 この真空ポンプ８により脱気筒３内が減圧され、脱気筒近傍のスクリュ−内材 料がこの減圧下に曝され、この材料中の揮発性物質のこの減圧力のもとでの気化 温度がシリンダ−内温度よりも低いものとなって、その気発性物質が気化され、 この気化成分が脱気筒３内を経てバキュ−ム管５より排出されていく。この際、 排出ガスの一部が脱気筒内面３０に接触するが、ヒ−タ−６により脱気筒内面３ ０の温度を上記減圧下での気化成分の凝縮温度よりも高く保持することによって 脱気筒内面３０での気化成分の凝縮・液化を容易に防止できる。この脱気筒内面 ３０の温度保持は、温度センサ−７の出力電流で脱気筒内面３０の温度を検出し 、この検出電流によってヒ−タ−６の通電電流を制御することによって行なわれ る。The inside of the de-cylinder 3 is decompressed by the vacuum pump 8, the material inside the screw near the de-cylinder is exposed to this decompression, and the volatile substances in this material are vaporized under the decompression force. The temperature becomes lower than the temperature in the cylinder, the vaporous substance is vaporized, and this vaporized component is discharged from the vacuum pipe 5 through the inside of the decylinder 3. At this time, a part of the exhaust gas comes into contact with the inner surface 30 of the de-cylinder, but the heater 6 keeps the temperature of the inner surface 30 of the de-cylinder higher than the condensing temperature of the vaporized components under the above-mentioned decompression. Condensation and liquefaction of vaporized components on the inner surface 30 of the cylinder can be easily prevented. The temperature of the inner surface 30 of the de-cylinder is maintained by detecting the temperature of the inner surface 30 of the de-cylinder by the output current of the temperature sensor 7 and controlling the energizing current of the heater 6 by this detected current.
【００１３】 上記において真空引きによる減圧度は、スクリュ−２による材料移送に支障を きたさない程度の負圧とされるが、材料中の粉状成分の一部は排出ガスに混じり 脱気筒３内を経てバキュ−ム管５より流出されていく。しかしながら、脱気筒内 面３０での液付着を回避できるから、その粉状成分の脱気筒内面３０への付着を よく防止でき、脱気筒３の連通性を安定に保持でき、脱ガス効率を安定に維持で きる。In the above description, the degree of pressure reduction by vacuuming is a negative pressure that does not hinder the material transfer by the screw-2, but a part of the powdery component in the material is mixed with the exhaust gas and the inside of the de-cylinder 3 is removed. After that, it is discharged from the vacuum tube 5. However, since the liquid adhesion on the inner surface 30 of the de-cylinder can be avoided, it is possible to prevent the powdery component from adhering to the inner surface 30 of the de-cylinder 3 well, the communication of the de-cylinder 3 can be stably maintained, and the degassing efficiency can be stabilized. Can be maintained.
【００１４】 上記において、バンドヒ−タ−６の巻着に代え脱気筒３の筒壁内に射込みヒ− タ−を所定の間隔で埋め込むこともできる。 上記において、材料中の粉状成分が多い場合は、図２に示すように、脱気筒３ 内にスクリュ−式スクレ−パ−９を設け、このスクレパ−９をベルト９１を介し て回転させ、脱気筒内面３０に付着する粉状成分をスクレパ−９で掻き落として シリンダ−１に戻すこともできる。この場合、脱気筒内面３０の一部においては スクレパ−９による掻き落としを行い得ないので、上記実施例と同様、脱気筒内 面の温度を前記気化成分の凝縮温度以上に保持するためのヒ−タ−６（図示のヒ −タ−には、射込みヒ−タ−が使用されている）並びに温度センサ−７を取り付 けてある。また、スクレパ−表面での前記気化成分の凝縮・付着を防止するため に、スクレパ−９内に加熱オイルを循環させてスクレパ−９の表面温度を前記気 化成分の凝縮温度以上に保持できるようにしてある。In the above, instead of winding the band heater 6, the injection heater may be embedded in the cylinder wall of the de-cylinder 3 at a predetermined interval. In the above, when there are many powdery components in the material, as shown in FIG. 2, a screw type scraper 9 is provided in the de-cylinder 3, and the scraper 9 is rotated via the belt 91. It is also possible to scrape off the powdery component adhering to the inner surface 30 of the de-cylinder with a scraper 9 and return it to the cylinder-1. In this case, since scraping off by the scraper 9 cannot be carried out on a part of the inner surface 30 of the de-cylinder, as in the above embodiment, the temperature for maintaining the inner surface of the de-cylinder at or above the condensation temperature of the vaporized components is maintained. A heater 6 (a shooting heater is used in the illustrated heater) and a temperature sensor 7 are attached. Further, in order to prevent the vaporized components from condensing and adhering to the scraper surface, heating oil is circulated in the scraper 9 so that the surface temperature of the scraper 9 can be maintained at the condensation temperature of the vaporizing components or higher. I am doing it.
【００１５】 図２において、９２はスクレパ−９内に挿入したオイル送り管、９３はスクレ パ−９内に設けたオイル通路、９４はスクレパ−９の上端に摺動シ−ルを介して 装着したカップリング、９５はオイル送り配管、９６はオイル戻し配管、９７は オイル温調・循環ポンプである。In FIG. 2, 92 is an oil feed pipe inserted in the scraper 9, 93 is an oil passage provided in the scraper 9, and 94 is attached to the upper end of the scraper 9 via a sliding seal. A coupling, 95 is an oil feed pipe, 96 is an oil return pipe, and 97 is an oil temperature control / circulation pump.
【００１６】 上記のスクリュ−式スクレパ−に代え、図３に示すようにプランジャ−９０を 使用することもできる。この場合も、脱気筒内面の温度を前記気化成分の凝縮温 度以上に保持するために脱気筒３にヒ−タ−６並びに温度センサ−７を取付け、 プランジャ−９０の表面温度を同上気化成分の凝縮温度以上に保持するためにプ ランジャ−９０内にヒ−タ−６０並びに温度センサ−７０を取付けてある（プラ ンジャ−９０内のヒ−タ−６０への電流の供給、温度センサ−７０の制御回路へ の導通は、プランジャ−軸９８に取り付けたスリップ接触子により行なわれるが 、その構成は図示されていない）。Instead of the above-mentioned screw type scraper, a plunger 90 can be used as shown in FIG. Also in this case, in order to keep the temperature of the inner surface of the de-cylinder above the condensation temperature of the vaporized component, a heater 6 and a temperature sensor-7 are attached to the de-cylinder 3, and the surface temperature of the plunger 90 is the same as that of the vaporized component. A heater 60 and a temperature sensor 70 are mounted in the plunger 90 in order to keep the temperature above the condensation temperature of the heater (supply of current to the heater 60 in the plunger 90, temperature sensor- The conduction of 70 to the control circuit is provided by a slip contact mounted on the plunger shaft 98, the construction of which is not shown).
【００１７】[0017]
【考案の効果】 本考案のスクリュ−式加工機のガス抜き装置は上述した通りの構成であり、材 料中の揮発性物質の気化ガスが脱気筒内面に凝縮により液化して付着するのを防 止でき、脱気筒内面を難付着性に保持できるから、排出ガス中に混入する材料中 の粉状成分の脱気筒内面での付着・堆積をよく防止でき、脱気筒内の連通性を安 定に維持でき、脱気筒を経ての脱ガスを効率よく行い得る。また、粉状成分の付 着・堆積による滞留中での加熱・分解の問題がなく、この劣化・分解物が材料に 混入する場合に回避できない成形不良を充分に排除できる。The degassing device of the screw type processing machine of the present invention is configured as described above, and vaporized gas of volatile substances in the material is condensed and liquefied and adheres to the inner surface of the de-cylinder. Since the inner surface of the de-cylinder can be prevented from sticking and the inside surface of the de-cylinder can be kept difficult to adhere to, it is possible to prevent the powdery components of the material mixed in the exhaust gas from adhering and accumulating on the inner surface of the de-cylinder. It can be maintained constant and degassing can be efficiently performed through the de-cylinder. In addition, there is no problem of heating and decomposition during retention due to attachment and deposition of powdery components, and it is possible to sufficiently eliminate molding defects that cannot be avoided when this deterioration and decomposed products mix in the material.
【図１】本考案の実施例を示す説明図である。FIG. 1 is an explanatory view showing an embodiment of the present invention.
【図２】本考案の上記とは別の実施例を示す説明図であ
る。FIG. 2 is an explanatory view showing another embodiment of the present invention.
【図３】本考案の上記とは別の実施例を示す説明図であ
る。FIG. 3 is an explanatory view showing another embodiment of the present invention.
１ シリンダ− ２ スクリュ− ３ 脱気筒 ５ バキュ−ム管 ６ ヒ−タ− ６０ ヒ−タ− ９ スクレ−パ− 1 Cylinder 2 Screw 3 De-cylinder 5 Vacuum Tube 6 Heater 60 Heater 9 Scraper
Claims (2)
−ム式脱気筒を設け、脱気筒内面の温度を排出ガス中に
含まれる原料の気化成分の凝縮点以上に加熱するための
ヒ−タ−を脱気筒に取り付けたことを特徴とするスクリ
ュ−式加工機のガス抜き装置。1. A heater for providing a vacuum type de-cylinder in a cylinder containing a screw to heat the inner surface of the de-cylinder to a temperature above the condensation point of the vaporized component of the raw material contained in the exhaust gas. A degassing device for a screw type processing machine, characterized in that-is attached to a de-cylinder.
リンダ−内に戻すスクレパ−を設け、該スクレパ−の温
度を排出ガス中の気化成分の凝固点以上に加熱するため
のヒ−タ−をスクレパ−に取り付けた請求項１記載のス
クリュ−式加工機のガス抜き装置。2. A heater for providing a scraper for returning the material adhering to the inner surface of the decylinder to the inside of the decylinder and heating the temperature of the scraper to a temperature above the freezing point of the vaporized component in the exhaust gas. The degassing device for a screw type processing machine according to claim 1, wherein the -is attached to a scraper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP063628U JPH0516273U (en) | 1991-08-12 | 1991-08-12 | Degassing device for screen processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP063628U JPH0516273U (en) | 1991-08-12 | 1991-08-12 | Degassing device for screen processing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0516273U true JPH0516273U (en) | 1993-03-02 |
Family
ID=13234802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP063628U Pending JPH0516273U (en) | 1991-08-12 | 1991-08-12 | Degassing device for screen processing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516273U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007518590A (en) * | 2003-10-28 | 2007-07-12 | コルメク・ソシエタ・ペル・アチオニ | Machine and method for mixing and extruding rubber and silicon plastic materials |
| JP2008036959A (en) * | 2006-08-07 | 2008-02-21 | Mitsubishi Engineering Plastics Corp | Manufacturing method for extrusion-molded article |
| JP2009214512A (en) * | 2008-03-13 | 2009-09-24 | Toray Ind Inc | Fogging prevention method of peephole, melt kneading device and manufacturing method of thermoplastic resin composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944867B1 (en) * | 1969-09-16 | 1974-11-30 | ||
| JPS51150570A (en) * | 1975-06-19 | 1976-12-24 | Japan Steel Works Ltd | Device for scraping adhesive material on vent board of multiple spindle degassing extruder |
| JPS55159957A (en) * | 1979-05-31 | 1980-12-12 | Matsushita Electric Works Ltd | Bent device of extruder |
| JPS59136230A (en) * | 1982-12-30 | 1984-08-04 | ペロツクシト−ヒエミ−・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Vent device for screw extruder, extruder with vent device and manufacture of paste containing peroxide or plastic mixture |
-
1991
- 1991-08-12 JP JP063628U patent/JPH0516273U/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944867B1 (en) * | 1969-09-16 | 1974-11-30 | ||
| JPS51150570A (en) * | 1975-06-19 | 1976-12-24 | Japan Steel Works Ltd | Device for scraping adhesive material on vent board of multiple spindle degassing extruder |
| JPS55159957A (en) * | 1979-05-31 | 1980-12-12 | Matsushita Electric Works Ltd | Bent device of extruder |
| JPS59136230A (en) * | 1982-12-30 | 1984-08-04 | ペロツクシト−ヒエミ−・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Vent device for screw extruder, extruder with vent device and manufacture of paste containing peroxide or plastic mixture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007518590A (en) * | 2003-10-28 | 2007-07-12 | コルメク・ソシエタ・ペル・アチオニ | Machine and method for mixing and extruding rubber and silicon plastic materials |
| JP4801993B2 (en) * | 2003-10-28 | 2011-10-26 | コルメク・ソシエタ・ペル・アチオニ | Machine and method for mixing and extruding rubber and silicon plastic materials |
| JP2008036959A (en) * | 2006-08-07 | 2008-02-21 | Mitsubishi Engineering Plastics Corp | Manufacturing method for extrusion-molded article |
| JP4682954B2 (en) * | 2006-08-07 | 2011-05-11 | 三菱エンジニアリングプラスチックス株式会社 | Extruded product manufacturing method |
| JP2009214512A (en) * | 2008-03-13 | 2009-09-24 | Toray Ind Inc | Fogging prevention method of peephole, melt kneading device and manufacturing method of thermoplastic resin composition |
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