JPS609228Y2 - Devolatilization device - Google Patents
Devolatilization deviceInfo
- Publication number
- JPS609228Y2 JPS609228Y2 JP12969680U JP12969680U JPS609228Y2 JP S609228 Y2 JPS609228 Y2 JP S609228Y2 JP 12969680 U JP12969680 U JP 12969680U JP 12969680 U JP12969680 U JP 12969680U JP S609228 Y2 JPS609228 Y2 JP S609228Y2
- Authority
- JP
- Japan
- Prior art keywords
- polymer composition
- barrel
- present
- devolatilizing
- extruder
- 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
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
【考案の詳細な説明】
本考案は重合体組成物から揮発性成分を除去するための
脱揮装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a devolatilization device for removing volatile components from polymer compositions.
多量の溶剤あるいはモノマー類その他不純物を含む重合
体組成物から、それらの揮発性成分を除去することは、
塊状重合法あるいは溶液重合法によって成形材料あるい
は押出板の製造プロセスにおいて重要な技術である。Removing volatile components from polymer compositions containing large amounts of solvents, monomers, and other impurities is
It is an important technology in the manufacturing process of molding materials or extruded plates using bulk polymerization or solution polymerization.
従来、前記したような多量の揮発性成分を含む重合体組
成物から、揮発性成分を分離回収する方法として、重合
体組成物を高温に加熱した後、細孔等を通して減圧下に
維持された脱揮押出機のスクリューに直接吹きつける方
法が提案されている（特公昭５１−２９９１４号）。Conventionally, as a method for separating and recovering volatile components from a polymer composition containing a large amount of volatile components as described above, the polymer composition was heated to a high temperature and then maintained under reduced pressure through pores, etc. A method of directly spraying onto the screw of a devolatilizing extruder has been proposed (Japanese Patent Publication No. 51-29914).
前記の方法は、多量の揮発成分を含有する重合体組成物
から揮発性成分を除去する方法としてはすぐれているが
、重合体組成物によっては、重合体組成物を供給するベ
ント部において急激な揮発性成分による発泡が起り、そ
の結果重合体組成物の体積が増大し、発泡体の加熱、溶
融及び移送が困難であった。The above method is excellent as a method for removing volatile components from a polymer composition containing a large amount of volatile components, but depending on the polymer composition, there may be a sudden drop at the vent portion where the polymer composition is supplied. Foaming due to the volatile components occurred, resulting in an increase in the volume of the polymer composition, making heating, melting and transporting the foam difficult.
本考案は、このような状況に鑑み検討した結果、脱揮押
出機に供給する重合体組成物の注入口を特定な位置に設
けることにより、上記の欠点が解消できることを見い出
し本考案を完成した。The present invention was developed in light of these circumstances, and it was discovered that the above drawbacks could be overcome by providing an injection port for the polymer composition to be supplied to the devolatilizing extruder at a specific position, and the present invention was completed. .
すなわち、本考案の要旨とするところは、脱揮押出機を
用いて重合体組成物から揮発性成分を除去する脱揮装置
において脱揮押出機に、加熱、加圧されて圧入された重
合体組成物を該押出機のパレス内面に直接吹きつるけよ
うに、重合体組成物の注入口を設けてなる脱揮装置にあ
る。That is, the gist of the present invention is that in a devolatilizing device that removes volatile components from a polymer composition using a devolatilizing extruder, a polymer that is heated, pressurized, and press-fitted into a devolatilizing extruder is A devolatilization device is provided with an injection port for the polymer composition so that the composition can be directly sprayed onto the inner surface of the extruder's palace.
本考案の特徴は、脱揮押出機よりなる脱揮装置で揮発性
成分を除去する際、第１ベント部に供給する重合体組成
物を脱揮押出機のバレル内面に直接吹きつけるように、
重合体組成物の注入口を該押出機に設けるものである。The feature of the present invention is that when removing volatile components with a devolatilizing device consisting of a devolatilizing extruder, the polymer composition supplied to the first vent part is sprayed directly onto the inner surface of the barrel of the devolatilizing extruder.
The extruder is provided with an injection port for the polymer composition.
以下、本考案を図面に基づいて詳しく説明する。Hereinafter, the present invention will be explained in detail based on the drawings.
第１図は本考案に係る脱揮装置の１例を示す断面図であ
り、第２図は第１図に示した脱揮装置のＡ−Ａ’視要部
拡大断面図であり、また第３図は本考案の他の例を示す
要部拡大断面図である。FIG. 1 is a sectional view showing one example of the devolatilizing device according to the present invention, and FIG. 2 is an enlarged sectional view of the main part of the devolatilizing device shown in FIG. FIG. 3 is an enlarged sectional view of a main part showing another example of the present invention.
第１〜３図において、１はバレル、２はスクリュー、３
は重合体組成物の注入パイプ、４は第１ベント部、５は
第２ベント部、６はグイ、７は重合体組成物注入口、８
はスクリューフライトを示す。In Figures 1 to 3, 1 is a barrel, 2 is a screw, and 3
is a polymer composition injection pipe, 4 is a first vent part, 5 is a second vent part, 6 is a guide, 7 is a polymer composition injection port, 8
indicates screw flight.
本考案に係る脱揮装置の重合体組成物の注入ロアは第２
図に示すようにバレル１を貫通せしめて、重合体組成物
がバレル１の内面に直接吹きっけられるように設ける。The injection lower of the polymer composition of the devolatilization device according to the present invention is the second one.
As shown in the figure, the barrel 1 is penetrated so that the polymer composition can be sprayed directly onto the inner surface of the barrel 1.
この注入ロアをバレル１に設ける方法としては本考案を
実施できる方法であれば特に限定されないが、例えば第
２図に示すようにバレル１の内面近くのみを斜めにして
、重合体組成物をバレル内面に直接吹きつけるようにす
るか、また第３図に示すように注入ロアをバレル１を斜
めにして貫通させるようにしてもよい。The method of providing this injection lower in the barrel 1 is not particularly limited as long as the present invention can be carried out, but for example, as shown in FIG. It may be sprayed directly onto the inner surface, or the injection lower may be passed through the barrel 1 at an angle, as shown in FIG.
しかし、本考案に係る脱揮装置においては、バレル内面
に重合体組成物を吹きつけさせる注入ロアの向きは、バ
レル内でスクリュー２が回転して、スクリューフライト
８が噴射される重合体組成物に当った際、重合体組成物
がスクリューフライト８の掻取り面に当る方向に設ける
必要がある。However, in the devolatilization device according to the present invention, the direction of the injection lower that sprays the polymer composition onto the inner surface of the barrel is such that the screw 2 rotates within the barrel and the screw flight 8 is injected with the polymer composition. It is necessary to provide the polymer composition in the direction in which it hits the scraping surface of the screw flight 8 when it hits the screw flight.
このような方向に注入ロアを設けることにより、バレル
内面に向けて吹きつけられた重合体組成物をうまく掻取
り移送することができる。By providing the injection lower in such a direction, the polymer composition sprayed toward the inner surface of the barrel can be successfully scraped off and transferred.
本考案装置に設けられる注入ロアは１個でも可能である
が、必要に応じて２個以上の複数個設けてもよい。Although it is possible to provide the device of the present invention with one injection lower, two or more injection lowers may be provided as necessary.
またこの注入ロアの押出機に設ける位置は本考案をうま
〈実施できる位置であれば特に限定しないが、バレル内
面に吹きつけられて発泡分離した揮発性成分が該押出機
より除去できよろうに第１ベント部領域、好ましくは第
１ベント部領域のベントロの反対側付近のバレルに設け
るのがよい。The position of the injection lower in the extruder is not particularly limited as long as it is possible to implement the present invention, but the volatile components foamed and separated by being blown onto the inner surface of the barrel can be removed from the extruder. It may be provided in the barrel near the first vent area, preferably on the opposite side of the ventro of the first vent area.
またベント部は減圧もしくは加圧下であってもよい。Further, the vent portion may be under reduced pressure or increased pressure.
バレル内面に設ける注入ロアの大きさは重合体組成物を
バレル内面に急速に吹きつけることができる大きさであ
れば特に限定されないが、注入ロアの大きさは例えば円
形の場合には内径１〜１ｏｒｒａｎ程度が好ましい。The size of the injection lower provided on the inner surface of the barrel is not particularly limited as long as the polymer composition can be rapidly sprayed onto the inner surface of the barrel. Approximately 1 orran is preferable.
また本考案の装置においては、図示してないが注入口は
スクリューに設けてもよい。Further, in the device of the present invention, although not shown, an injection port may be provided in the screw.
この場合、重合体組成物はスクリュー末端から注入され
、スクリュー軸に貫通された穴を通って流れた第１ベン
トゾーンにあるスクリュー軸からバレルに吹きつけられ
る。In this case, the polymer composition is injected from the end of the screw and is sprayed into the barrel from the screw shaft in a first vent zone where it flows through a hole passed through the screw shaft.
バレルに設ける注入口の形状は特に限定なく、円形のほ
か正方形及びスリット状のものでもよい。The shape of the injection port provided in the barrel is not particularly limited, and may be circular, square, or slit-shaped.
本考案の脱揮装置に供せられる重合体組成物としては１
５〜６唾量％の未反応モノマー、溶剤及び／又は副生成
物などの揮発成分を含むアルキル（メタ）アクリレート
類、スチレン、ブタジェン、イソプロピレン等のビニル
化合物の単独重合体又は共重合体よりなる組成分であっ
て、塊状重合又は溶液重合によって製造された組成分で
ある。The polymer composition to be provided to the devolatilization device of the present invention is 1
From homopolymers or copolymers of vinyl compounds such as alkyl (meth)acrylates, styrene, butadiene, isopropylene, etc., containing volatile components such as 5 to 6% unreacted monomers, solvents, and/or by-products. It is a composition produced by bulk polymerization or solution polymerization.
これらの重合体組成物は１８０〜２７０℃、１０〜１０
０ｋｇ／ａｌ！に加熱、加圧して注入口に供給する。These polymer compositions are heated at 180-270°C, 10-10
0kg/al! The sample is heated and pressurized and supplied to the injection port.
本考案の脱揮装置は一軸もしくは多軸において′も有効
に応用できる。The devolatilization device of the present invention can be effectively applied to single-shaft or multi-shaft systems.
本考案の脱揮装置は第１ベント領域のみバレルに重合体
組成物を吹きつけることにより大部分の揮発性成分を除
去できるが、必要により、第２ベント領域を押出機の下
流に設けることができる。The devolatilization device of the present invention can remove most of the volatile components by spraying the polymer composition into the barrel only in the first vent region, but if necessary, a second vent region can be provided downstream of the extruder. can.
以上の如き構造を有する本考案の脱揮装置はバレル内に
重合体組成物を直接吹きつけることにより、揮発分が効
率よく分離すると共に、発泡した重合体もバレルで溶融
してスクリュ一部にかきとられ、ベントアップすること
なしにうまく移送できるという利点を有する。The devolatilization device of the present invention, which has the above structure, can efficiently separate the volatile components by directly spraying the polymer composition into the barrel, and the foamed polymer can also be melted in the barrel to form part of the screw. It has the advantage of being scraped off and can be transported successfully without venting.
第１図は本考案の一例を示す脱揮装置の断面図、第２図
は第１図に示した脱揮装置のＡ−Ａ′視要部拡大断面図
、第３図は本考案の他の例を示す要部拡大断面図である
。
図において、１はバレル、２はスクリュー、３は重合体
組成物注入パイプ、４は第１ベント部１．５は第２ベン
ト部、６はグイ、７は重合体組成物注入口、８はスクリ
ューフライトを示す。Fig. 1 is a sectional view of a devolatilizing device showing an example of the present invention, Fig. 2 is an enlarged sectional view of the main part of the devolatilizing device shown in Fig. 1, taken along line A-A', and Fig. 3 is a sectional view of a devolatilizing device showing an example of the present invention. FIG. In the figure, 1 is a barrel, 2 is a screw, 3 is a polymer composition injection pipe, 4 is a first vent part 1.5 is a second vent part, 6 is a guide, 7 is a polymer composition injection port, and 8 is a polymer composition injection pipe. Showing screw flight.
Claims (1)
する脱揮装置において、脱揮押出機に、加熱、加圧され
て圧入された重合体組成物を該押出機のバレル内面に直
接吹きつけるように、重合体組成物の注入口を設けてな
る脱揮装置。In a devolatilizing device that removes volatile components from a polymer composition using a devolatilizing extruder, the polymer composition that has been heated, pressurized, and press-fitted into the devolatilizing extruder is heated and pressurized, and is then heated and pressurized onto the inner surface of the barrel of the extruder. A devolatilization device equipped with an injection port for direct spraying of a polymer composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12969680U JPS609228Y2 (en) | 1980-09-11 | 1980-09-11 | Devolatilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12969680U JPS609228Y2 (en) | 1980-09-11 | 1980-09-11 | Devolatilization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5752544U JPS5752544U (en) | 1982-03-26 |
| JPS609228Y2 true JPS609228Y2 (en) | 1985-04-02 |
Family
ID=29490031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12969680U Expired JPS609228Y2 (en) | 1980-09-11 | 1980-09-11 | Devolatilization device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609228Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0449516Y2 (en) * | 1986-12-10 | 1992-11-20 |
-
1980
- 1980-09-11 JP JP12969680U patent/JPS609228Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5752544U (en) | 1982-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4653380B2 (en) | Method for reducing polymer content in waste water by dewatering a plastic / water mixture | |
| JP3863581B2 (en) | Method for dehydrating a two-phase liquid mixture comprising a thermoplastic melt and an aqueous phase | |
| TWI238772B (en) | Pelletizing die, pelletizing apparatus, and method for producing pellets of expandable thermoplastic resin | |
| BR0008258A (en) | Injection molding process for (meth) acrylate polymers containing neutral groups and acids | |
| JPS58147332A (en) | Devolatilization extruding method and device thereof | |
| JPS609228Y2 (en) | Devolatilization device | |
| JPH0349925A (en) | Devolatile extrusion method of thermoplastic polymer composition | |
| CA2249087A1 (en) | Method for removing volatile materials from a polymer composition | |
| CA2260948A1 (en) | Polymer devolatilization | |
| JPS5919724B2 (en) | Rotating disc devolatilization extrusion method and device | |
| JPH0676448B2 (en) | Method for producing modified methacrylic resin molding material | |
| JP4750255B2 (en) | Method for removing organic solvent from isobutylene block copolymer resin solution and method for producing pellets | |
| US5275549A (en) | Molding apparatus with degassing mechanism | |
| US3694535A (en) | Process and apparatus for removing volatile substances from viscous compositions | |
| JPS61264005A (en) | Recovery of polymer from polymer latex | |
| JPH0811766B2 (en) | Method of recovering block copolymer | |
| JPH08155969A (en) | Washing agent for molding machine | |
| JPH07205146A (en) | Continuously regenerating method for resin with coating film | |
| JPS621703A (en) | Method of recovering polymer | |
| JPS5971828A (en) | Cooler | |
| JP3164860B2 (en) | Method for producing acrylic resin | |
| EP0058004A1 (en) | Inclined insulated runner multicavity plastic injection molding | |
| JP3760059B2 (en) | Devolatilization extrusion method and screw type devolatilization extrusion equipment | |
| US3293345A (en) | Process for the ejection of molded plastic parts from hot molds | |
| US5290493A (en) | Process for continuously recycling water soluable resin |