JPH0425430A - Method for sucking volatile component of vinyl chloride resin - Google Patents
Method for sucking volatile component of vinyl chloride resinInfo
- Publication number
- JPH0425430A JPH0425430A JP2130559A JP13055990A JPH0425430A JP H0425430 A JPH0425430 A JP H0425430A JP 2130559 A JP2130559 A JP 2130559A JP 13055990 A JP13055990 A JP 13055990A JP H0425430 A JPH0425430 A JP H0425430A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- vacuum pump
- temp
- suction pipeline
- volatile component
- 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
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims description 10
- 239000011347 resin Substances 0.000 title claims description 7
- 229920005989 resin Polymers 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 239000000654 additive Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000004898 kneading Methods 0.000 claims abstract description 4
- 239000011342 resin composition Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 abstract description 6
- LUZSPGQEISANPO-UHFFFAOYSA-N butyltin Chemical compound CCCC[Sn] LUZSPGQEISANPO-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 229940049920 malate Drugs 0.000 description 5
- BJEPYKJPYRNKOW-UHFFFAOYSA-N malic acid Chemical compound OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はブチル鍋マレート系安定剤等高温下で気化し易
い液状添加剤を含有する塩化ビニル樹脂を溶融押出する
際の揮発分の吸引方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for suctioning volatile matter during melt extrusion of vinyl chloride resin containing liquid additives that easily vaporize at high temperatures, such as butyl pan malate stabilizers. Regarding.
（従来技術とその課題）
従来、塩化ビニル樹脂組成物を溶融押出するに際し、塩
化ビニル樹脂中に含有されているブチル錫マレート系安
定剤等液状添加剤は押出機内の高温下で気化し、押出製
品への気泡混入を防止するため押出機中間混練部を減圧
する方法が採られている。(Prior art and its problems) Conventionally, when melt-extruding a vinyl chloride resin composition, liquid additives such as butyltin malate stabilizers contained in the vinyl chloride resin are vaporized at high temperatures in the extruder, and the extrusion In order to prevent air bubbles from entering the product, a method is adopted in which the pressure in the intermediate kneading section of the extruder is reduced.
然るに、ブチル錫マレート系安定剤等の液状添加剤は常
温域では固化する性質を有し、真空ポンプまでの吸引中
に吸引配管内に析出固化して配管内に付着し、吸引圧力
の低下や吸引配管中の詰まりを生じ、生産の安定性を阻
害するという問題かある。However, liquid additives such as butyltin malate stabilizers have the property of solidifying at room temperature, and during suction to the vacuum pump, they precipitate and solidify inside the suction piping and adhere to the inside of the piping, causing a drop in suction pressure and There is a problem that the suction piping becomes clogged, which hinders the stability of production.
また吸引ガスの温度が高いと真空ポンプの排気能力が大
幅に低下し、所定の真空圧が得られないという問題もあ
る。Furthermore, if the temperature of the suction gas is high, the exhaust capacity of the vacuum pump will be significantly reduced, resulting in the problem that a predetermined vacuum pressure cannot be obtained.
（課題を解決する手段）
本発明は上記課題を解決せんとするもので、その要旨は
、高温下で気化し易い液状添加剤を含有する塩化ビニル
樹脂組成物を溶融押出する際に真空ポンプを用いて押出
機中間混線部の揮発分を吸引するにあたり、真空ポンプ
に接続された吸引配管内の温度を６０〜８０℃に維持す
るようにしたことを特徴とする塩化ビニル樹脂の揮発分
吸引方法にある。(Means for Solving the Problems) The present invention aims to solve the above problems, and the gist thereof is to use a vacuum pump when melt extruding a vinyl chloride resin composition containing a liquid additive that easily vaporizes at high temperatures. A method for suctioning volatile matter from vinyl chloride resin, characterized in that the temperature in the suction piping connected to the vacuum pump is maintained at 60 to 80°C when the volatile matter in the intermediate cross-conductor part of the extruder is suctioned using the vacuum pump. It is in.
以下、本発明を図面に基すき更に詳細に説明する。Hereinafter, the present invention will be explained in more detail based on the drawings.
第１図は本発明の実施態様の一例を示す概略図である。FIG. 1 is a schematic diagram showing an example of an embodiment of the present invention.
押出ＩＩＡ内の中間混練部の揮発分を含むカスは揮発分
吸引口１より吸引配管３を通じて吸引され、粉体分とガ
ス分とを分離するためのフィルター２を経由して真空ボ
ン７６に誘導される。The residue containing volatile matter in the intermediate kneading section in the extrusion IIA is sucked through the suction pipe 3 from the volatile matter suction port 1, and guided to the vacuum bomb 76 via the filter 2 for separating the powder component and the gas component. be done.
真空ポンプ６に接続された吸引配管３の外周には帯状の
ヒーター４が取付けられており、吸引配管３の外壁に設
けられた温度センサー５により吸引配管３内の温度が６
０〜８０℃に維持されるように温度コントロールする。A band-shaped heater 4 is attached to the outer circumference of the suction pipe 3 connected to the vacuum pump 6, and a temperature sensor 5 provided on the outer wall of the suction pipe 3 measures the temperature inside the suction pipe 3.
The temperature is controlled to be maintained at 0-80°C.
ブチル錫マレート系安定剤等液状添加剤は６０℃以上に
維持されていれば吸引配管３内に固化析出して配管詰り
を惹起することがなく、また吸引配管３内が８０℃以下
に維持されれば真空ポンプの排気能力の低下は極めて少
いものである。If liquid additives such as butyltin malate stabilizers are maintained at 60°C or higher, they will not solidify and precipitate in the suction piping 3 and cause piping clogging, and if the temperature inside the suction piping 3 is maintained at 80°C or lower. If so, the deterioration in the evacuation capacity of the vacuum pump will be extremely small.
次に本発明を実施例に基すき説明する。Next, the present invention will be explained based on examples.
（実施例）
塩化ビニル樹脂１００重量にブチル錫マレート系安定剤
を４重量部を混入した塩化ビニル樹脂組成物を真空ボン
１を用いて減圧吸引しつつ、吸引配管内の温度を第１表
に示す温度に維持させて押出実験を行い、第１表の結果
を得な。なお、吸引圧力は７４０ｎｎＨｇとした。(Example) A vinyl chloride resin composition in which 4 parts by weight of a butyltin malate stabilizer was mixed with 100 parts by weight of vinyl chloride resin was suctioned under reduced pressure using vacuum bomb 1, and the temperature inside the suction pipe was set as shown in Table 1. Extrusion experiments were carried out maintaining the temperature shown and the results shown in Table 1 were obtained. Note that the suction pressure was 740 nnHg.
第１表
大
引証管中の詰りは温度が高くなる程少なくなるが９０℃
では大幅に吸引圧力は低下し、また温度５０℃では吸引
圧力の低下はないか吸引配管中の詰りを生ずるので好ま
しくなく６０°〜８０℃の温度範囲か最も良好であった
。Table 1: The higher the temperature, the less likely the blockage in the main pipe is 90°C.
At a temperature of 50 DEG C., there is no decrease in the suction pressure or clogging occurs in the suction piping.
（発明の効果）
本発明は以上述べたように本発明の方法によれば吸引配
管中の詰りかなくなり、常に安定した吸引圧力が維持さ
れ、安定した生産が可能である。(Effects of the Invention) As described above, according to the method of the present invention, there is no clogging in the suction piping, a stable suction pressure is always maintained, and stable production is possible.
第１図は本発明の実施態様の一例を示す概略図である。 Ａ・・・・・・押出機 １・・・・・・揮発分吸引口 ２・・・・・・フィルター ３・・・・・・吸引配管 ４・・・・・・ヒーター ５・・・・・・温度センサー ６・・・・・・真空ポンプ 特許出願人 三菱樹脂株式会社 FIG. 1 is a schematic diagram showing an example of an embodiment of the present invention. A... Extruder 1... Volatile suction port 2...Filter 3...Suction piping 4... Heater 5...Temperature sensor 6...Vacuum pump Patent applicant: Mitsubishi Plastics Co., Ltd.
Claims (1)
脂組成物を溶融押出する際に真空ポンプを用いて押出機
中間混練部の揮発分を吸引するにあたり、真空ポンプに
接続された吸引配管内の温度を６０〜８０℃に維持する
ようにしたことを特徴とする塩化ビニル樹脂の揮発分吸
引方法Inside the suction piping connected to the vacuum pump, when a vacuum pump is used to suction volatile matter from the intermediate kneading section of the extruder when melt-extruding a vinyl chloride resin composition containing liquid additives that easily vaporize at high temperatures. A method for suctioning volatile matter from vinyl chloride resin, characterized in that the temperature of the resin is maintained at 60 to 80°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130559A JPH0425430A (en) | 1990-05-21 | 1990-05-21 | Method for sucking volatile component of vinyl chloride resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130559A JPH0425430A (en) | 1990-05-21 | 1990-05-21 | Method for sucking volatile component of vinyl chloride resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425430A true JPH0425430A (en) | 1992-01-29 |
Family
ID=15037157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2130559A Pending JPH0425430A (en) | 1990-05-21 | 1990-05-21 | Method for sucking volatile component of vinyl chloride resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425430A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2152154A1 (en) * | 1998-05-27 | 2001-01-16 | Mecanica Y Automatismos S A | Degasser of vacuum pump based polymer extruders includes self cleaning high capacity filters, with gas feed into the pump also receiving water |
| US6918607B2 (en) | 2003-01-31 | 2005-07-19 | Honda Motor Co., Ltd. | Side stand device |
| JP2008036959A (en) * | 2006-08-07 | 2008-02-21 | Mitsubishi Engineering Plastics Corp | Manufacturing method for extrusion-molded article |
-
1990
- 1990-05-21 JP JP2130559A patent/JPH0425430A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2152154A1 (en) * | 1998-05-27 | 2001-01-16 | Mecanica Y Automatismos S A | Degasser of vacuum pump based polymer extruders includes self cleaning high capacity filters, with gas feed into the pump also receiving water |
| US6918607B2 (en) | 2003-01-31 | 2005-07-19 | Honda Motor Co., Ltd. | Side stand device |
| JP2008036959A (en) * | 2006-08-07 | 2008-02-21 | Mitsubishi Engineering Plastics Corp | Manufacturing method for extrusion-molded article |
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