JPS592817A - Manufacture of tubular resin film - Google Patents

Manufacture of tubular resin film

Info

Publication number
JPS592817A
JPS592817A JP57111796A JP11179682A JPS592817A JP S592817 A JPS592817 A JP S592817A JP 57111796 A JP57111796 A JP 57111796A JP 11179682 A JP11179682 A JP 11179682A JP S592817 A JPS592817 A JP S592817A
Authority
JP
Japan
Prior art keywords
resin
outer layer
layer resin
supply port
passage
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.)
Granted
Application number
JP57111796A
Other languages
Japanese (ja)
Other versions
JPS6143170B2 (en
Inventor
Takashi Noguchi
野口　隆司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seisan Nipponsha KK
Original Assignee
Seisan Nipponsha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seisan Nipponsha KK filed Critical Seisan Nipponsha KK
Priority to JP57111796A priority Critical patent/JPS592817A/en
Publication of JPS592817A publication Critical patent/JPS592817A/en
Publication of JPS6143170B2 publication Critical patent/JPS6143170B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To eliminate the retention of any foamed resin produced inside a die thereby to obtain the titled film of excellent quality, by discharging to the outside a part of a resin at the circumferential junction of flows of the resin at the position exact opposite to an outer layer resin supply port in an outer layer resin passage. CONSTITUTION:A resin apt to be retained is discharged to the outside of a die at all times through a resin discharging slit 13 from a junction 8a at the position exact opposite to an outer layer resin supply port 9 in an outer layer resin passage 8. Thus, the run-off of the resin is equalized to that at the part of the supply port 9, and a normal resin flow toward an annular slit 10 is obtained, thereby making it possible to prevent the occurrence of any defective foaming. A foamed resin film 11b constituting an outer layer completely coats a non- expandable resin film 11a constituting an inner layer, thereby allowing a multi- layer tubular resin film 11 of excellent quality to be obtained.

Description

【発明の詳細な説明】 本発明は非発泡性樹脂フィルムを内層とし、発泡性樹脂
フィルムを外層とする複層の筒状樹脂フィルムを製造す
る方法に関するもので、その目的は、ダイス内部におい
て発生する発泡病。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a multilayer cylindrical resin film having a non-foamable resin film as an inner layer and a foamable resin film as an outer layer. Foaming disease.

脂の滞留を解消し、均一々発泡性樹脂フィルムを形成す
ることにより内層の非発泡性樹脂フィルムを完全に被覆
し品質の向上を図ったことである。By eliminating the accumulation of fat and uniformly forming a foamable resin film, the inner non-foamable resin film is completely covered and the quality is improved.

なお該フィルムは第４図に示すように、内層を非発泡性
樹脂フィルムｌｌａとし、外層を発泡性樹脂フィルムｌ
ｌｂとなるようＫして製袋することによシ各種の包材と
して使用される。As shown in FIG. 4, the film has an inner layer made of a non-foamable resin film lla, and an outer layer made of a foamed resin film lla.
It is used as a variety of packaging materials by making bags with a weight of lb.

この筒状樹脂フィルム１１はダイス・によって押出成形
されるがそのダイスは、ノズル本体の外周に環状の内層
樹脂通路と外層樹脂通路とを区画シテ形成し、ノズル本
体の下面に前記内層樹脂通路に連通ずる内層樹脂供給口
を、また側面に前記外層樹脂通路に連通ずる外層樹脂供
給口を設け、ノズル本体の上面に前記内層樹脂通路と外
層樹脂通路とが合流するフィルム成形用の環状スリット
を形成した構造であり、内層の非発泡樹脂フィルムｌｌ
ａを外層の発泡樹脂フィルム１１ｂＫ３Ｉｌ状的に核種
する。This cylindrical resin film 11 is extrusion molded using a die, which defines an annular inner layer resin passage and an annular outer layer resin passage on the outer periphery of the nozzle body, and forms an annular inner layer resin passage and an annular outer layer resin passage on the lower surface of the nozzle body. A communicating inner layer resin supply port is provided, and an outer layer resin supply port communicating with the outer layer resin passage is provided on the side surface, and an annular slit for film molding is formed on the upper surface of the nozzle body where the inner layer resin passage and the outer layer resin passage merge. The inner layer is a non-foamed resin film.
a is formed into a nuclide in the form of the outer foamed resin film 11bK3Il.

ところで、ダイスの側面に設けられた外層樹脂供給口よ
り注入された外層樹脂は、外層樹脂供給口を起点として
環状の外層樹脂通路の周方向に左右分流し、外層樹脂供
給口とは正反対位置で合流して筒状に押出成形される。By the way, the outer layer resin injected from the outer layer resin supply port provided on the side surface of the die flows into left and right branches in the circumferential direction of the annular outer layer resin passage starting from the outer layer resin supply port, and is distributed at a position exactly opposite to the outer layer resin supply port. They are combined and extruded into a cylindrical shape.

従って、前記合流点は外層樹脂供給口より最も離れた位
置であるため、樹脂の流圧が供給口よりも弱くなり、合
流点における樹脂の流れが遅速となって樹脂の滞留が常
態的に発生する。更にまた、外層樹脂供給口より水平方
向に注入された外層樹脂は外層樹脂通路で漸次垂直方向
に立ち上るが、前記合流点における樹脂流圧が弱いので
、この立ち上りの力も弱く滞留の状態を一層助長するな
どの問題点がある。Therefore, since the confluence point is the farthest position from the outer layer resin supply port, the flow pressure of the resin is weaker than that of the supply port, and the resin flow at the confluence point becomes slow, resulting in resin stagnation. do. Furthermore, the outer layer resin injected horizontally from the outer layer resin supply port gradually rises in the vertical direction in the outer layer resin passage, but since the resin flow pressure at the confluence point is weak, the rising force is also weak and further promotes the stagnation state. There are problems such as:

このようにして発生した滞留樹脂は正常に流動する樹脂
よりもダイス本体内における滞留時間が当然長いために
、ダイスの形成熱を多く受けることになり、気泡が不規
則に膨大したり熱分解を起して、気泡が破裂又は焼ける
などして消減し不良発泡層となる。The stagnant resin generated in this way naturally has a longer residence time in the die body than normally flowing resin, so it receives more of the die's formation heat, causing irregular bubble expansion and thermal decomposition. Then, the bubbles burst or burn and disappear, resulting in a defective foam layer.

その結果、ダイスより押出成形された複層の筒状樹脂フ
ィルムは、正営々発泡部分不良発泡部分の二面を持った
筋目のある外層樹脂フィルムとなシネ良品を製造する欠
点があった。As a result, the multi-layer cylindrical resin film extruded from a die has the drawback that a good product is produced, such as an outer resin film with streaks on two sides with a foamed portion that is defective.

本発明は上記従来の問題を解決したもので、その要旨と
するところは、前記外層樹脂押出機おける外層樹脂供給
口とは正反対位置の樹脂の周方向合流点の樹脂の一部を
外部に放出し、樹脂の流動を活発にして滞留を解消させ
たことである。The present invention has solved the above-mentioned conventional problems, and the gist thereof is to release a portion of the resin at the circumferential confluence point of the resin at a position directly opposite to the outer layer resin supply port in the outer layer resin extruder to the outside. However, the flow of the resin was activated to eliminate the stagnation.

以下本発明の一実施例について図面に基いて説明する。An embodiment of the present invention will be described below with reference to the drawings.

第１図及び第２図において１はダイスである。このダイ
ス１は、ノズル本体２の外周に嵌挿された内筒３により
環状の内層樹脂通路４を形成し、さらに、内筒３の外周
に嵌挿された外筒７により環状の外層樹脂通路８が形成
される。そして、ノズル本体２の下面中央部に内層樹脂
供給口５が設けられ、ノズル本体２の径方向に穿設した
導通穴６を介して内層樹脂通路４に連通している。また
、内筒３と一体の側部には外層樹脂供給口９が水平方向
に設けられ、外層樹脂通路８と連通している。In FIGS. 1 and 2, 1 is a die. This die 1 forms an annular inner layer resin passage 4 with an inner cylinder 3 fitted on the outer periphery of the nozzle body 2, and further forms an annular outer layer resin passage with an outer cylinder 7 fitted on the outer periphery of the inner cylinder 3. 8 is formed. An inner layer resin supply port 5 is provided at the center of the lower surface of the nozzle body 2 and communicates with the inner layer resin passage 4 via a conduction hole 6 formed in the radial direction of the nozzle body 2. Further, an outer layer resin supply port 9 is horizontally provided in a side portion integral with the inner cylinder 3 and communicates with the outer layer resin passage 8 .

ノズル本体２の上部には、す／り１２によって内層樹脂
通路４と外層樹脂通路８とが合流するフィルム成形用の
環状スリット１０が設けられている。An annular slit 10 for forming a film is provided in the upper part of the nozzle body 2, through which the inner layer resin passage 4 and the outer layer resin passage 8 merge.

そこで、本発明は、前記外層樹脂供給口９から注入され
た外層用樹脂（発泡性樹脂）が、外層樹脂供給口９を起
点にして環状の外層樹脂通路８０周方向に左右分流し、
これが前記外層樹脂供給口９とは正反対位置で合流する
合流点８ａにｌ°イス１外に連通する樹脂放出細孔１３
を設けたものである。尚、この樹脂放出細孔１３の出口
に紋り開閉自在な樹脂抜き栓１４を取付けてもよい。１
５は樹脂抜き栓１４より放出される糸状の放出樹脂であ
る。Therefore, in the present invention, the outer layer resin (foamable resin) injected from the outer layer resin supply port 9 flows left and right in the circumferential direction of the annular outer layer resin passage 80 starting from the outer layer resin supply port 9,
This resin discharge hole 13 communicates with the outside of the chair 1 at a confluence point 8a that is exactly opposite to the outer layer resin supply port 9.
It has been established. Incidentally, a resin drain plug 14 which can be opened and closed freely may be attached to the outlet of the resin discharge hole 13. 1
Reference numeral 5 indicates a thread-like discharged resin discharged from the resin drain plug 14.

第３図において１６は内層樹脂押出機であり内層樹脂供
給口５に連結され、非発泡性樹脂を供給する。１７は外
層樹脂押出機であり外側樹脂供給口９に連結され、発泡
性樹脂を供給する。In FIG. 3, reference numeral 16 denotes an inner layer resin extruder, which is connected to the inner layer resin supply port 5 and supplies non-foamable resin. Reference numeral 17 denotes an outer layer resin extruder, which is connected to the outer resin supply port 9 and supplies foamable resin.

次に上記本発明の作用について説明する。内層を非発泡
性樹脂フィルムｌｌ＆とし、外層を発泡性樹脂フィルム
ｌｌｂとする複層の筒状樹脂フィルム１１は在来と同様
にダイス１のフィルム成形用の環状スリットより上方処
向って押出成形される。すなわち、内層樹脂供給口５に
供給された内層用樹脂は導通穴６を介して内層樹脂通路
４に導入され環状となって垂直方向に上昇する。Next, the operation of the present invention will be explained. A multi-layer cylindrical resin film 11 having a non-foamable resin film ll& as an inner layer and a foamable resin film llb as an outer layer is extruded upward from the annular slit for film forming of the die 1 in the same manner as in the conventional method. Ru. That is, the inner layer resin supplied to the inner layer resin supply port 5 is introduced into the inner layer resin passage 4 through the conduction hole 6, forms an annular shape, and rises vertically.

また、外層樹脂供給口９に供給された外層樹脂は、外層
樹脂通路８を前記外層樹脂供給口９を起点にして周方向
に左右分流し、外層樹脂供給口９とは正反対位ＩＭの合
流点８ａにて再び合流して環状と々す、垂直方向に上昇
する。そして、フィルム成形用の環状スリット１０にて
上昇する内層樹脂と外層樹脂とが合流し、外層の発泡性
樹脂フィルムｌｌｂの内周に内層の非発泡性樹脂フィル
ムｌｌａが被覆され複層の筒状樹脂フィルム１１として
押出成形するのである。Further, the outer layer resin supplied to the outer layer resin supply port 9 flows through the outer layer resin passage 8 into left and right branches in the circumferential direction starting from the outer layer resin supply port 9, and flows through the outer layer resin passage 8 at a confluence point IM located directly opposite to the outer layer resin supply port 9. It joins again at 8a, forms a ring, and rises vertically. Then, the inner layer resin and the outer layer resin rising in the annular slit 10 for film forming merge, and the inner periphery of the outer layer foamable resin film llb is covered with the inner layer non-foamable resin film lla, forming a multilayer cylindrical shape. The resin film 11 is extrusion molded.

そこで、本発明においては、外層樹脂通路８の外層樹脂
供給口９とは正反対位置の合流点８ａから樹脂放出細孔
１３を介して滞留しがちな樹脂を常時ダイス外に放出す
るために樹脂の流動が活発となり、滞留を解消すると共
に、樹脂の流圧を外層樹脂供給口９の部位と均等化し、
環状スリット１０方向への上昇力又は樹脂流が滞留分解
の影響を受けて、部分的な乱れを起すことなく正常に得
られ、不良発泡の発生を防止するのである。尚、若し伺
らかの理由で、合流点８ａで樹脂の滞留が起り、不良発
泡樹脂が生成しても、その不良発泡樹脂は樹脂放出細孔
１３よシダイス１の外部に絶えず放出されるので、成形
される複層の筒状樹脂フィルム１１の製品に悪影響を及
ぼすことけない。Therefore, in the present invention, in order to constantly discharge the resin that tends to stagnate out of the die from the confluence point 8a of the outer layer resin passage 8, which is located directly opposite to the outer layer resin supply port 9, through the resin discharge pores 13, The flow becomes active, eliminating stagnation, and equalizing the flow pressure of the resin with that of the outer layer resin supply port 9.
The upward force or resin flow in the direction of the annular slit 10 is affected by the stagnation and decomposition, and is normally obtained without local disturbances, thereby preventing the occurrence of defective foaming. In addition, even if resin stagnation occurs at the confluence point 8a for some unknown reason and defective foamed resin is generated, the defective foamed resin is constantly discharged to the outside of the die 1 through the resin release pores 13. Therefore, the product of the multilayer cylindrical resin film 11 to be molded will not be adversely affected.

このように本発明は外層樹脂通路の特定位置に滞留樹脂
を外部に放出するようにしたものであるから、外層と々
る発泡樹脂は不良発泡することなく常に正常な発泡樹脂
フィルムとなり、内層の非発泡樹脂フィルムと合流して
品質良好な複層の筒状樹脂フィルムを製造することがで
きる効果を有している。In this way, the present invention is designed to release the residual resin to the outside at a specific position in the outer layer resin passage, so the foamed resin in the outer layer always becomes a normal foamed resin film without causing defective foaming. It has the effect of being able to combine with a non-foamed resin film to produce a multi-layer cylindrical resin film of good quality.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明方法の一実施例を示すもので、第１図はダ
イスの縦断面図、第２図は第１図■−ｎ線断面図、第３
２図はダイスを各押出機と連結した状態の側面図、第４
図は複層の筒状樹脂フィルムの断面図である。 １・・・ダイス、２・・・ノズル本体、３・・・内筒、
４・・・内層樹脂通路、５・・・内層樹脂供給口、６・
・・導通穴、７・・・外筒、８・・・外層樹脂通路、８
ａ・・・合流点、９拳・・外層樹脂供給口、１０・・・
環状スリット、１１・・・筒状樹脂フィルム、１３・・
・樹脂放出細孔、１４・・・樹脂抜き栓。 第３図 、、１１ 「偽 第４図　　、１The drawings show an embodiment of the method of the present invention, in which Fig. 1 is a longitudinal sectional view of the die, Fig. 2 is a sectional view taken along the line
Figure 2 is a side view of the die connected to each extruder, Figure 4
The figure is a sectional view of a multilayer cylindrical resin film. 1...Dice, 2...Nozzle body, 3...Inner cylinder,
4... Inner layer resin passage, 5... Inner layer resin supply port, 6...
... Conduction hole, 7... Outer cylinder, 8... Outer layer resin passage, 8
a...Confluence point, 9 fists...Outer layer resin supply port, 10...
Annular slit, 11... Cylindrical resin film, 13...
-Resin release pore, 14...resin drain plug. Figure 3, 11 "False Figure 4, 1

Claims (1)

【特許請求の範囲】 非発泡性樹脂フィルムを内層とし、発泡性樹脂フィルム
を外層とする複層の筒状樹脂フィルムを製造する方法で
あって、ノズル本やの外周に嵌挿された内筒により環状
の内層樹脂通路を形成し、前記内筒の外周に嵌挿された
外筒により環状の外層樹脂通路を形成し、ノズル本体の
か 下面の略中央部に前記内層樹脂通路に連通する内層樹脂
供給臼を、また外層樹脂通路の側方に外層樹脂供給口を
設け、ノズル本体の上部で前記内層樹脂通路と外層樹脂
通路とが合流するフィルム成形用の環状スリットより前
記複層の筒状樹脂フィルムを押出成形する工程において
、前記外層樹脂供給口から注入された外層用樹脂が外層
樹脂供給口を起点にして環状の外層樹脂通路の周方向に
左右分流シ１、これが前記外層樹脂供給口とは正反対位
置で合流する合流点に外層樹脂通路外部に連通ずる樹脂
放出細孔を設け、この樹脂放出細孔より前記合流点にお
ける滞留樹脂を外部に放出することを特徴とする筒状樹
脂フィルムの製造方法。[Claims] A method for producing a multi-layer cylindrical resin film having a non-foamed resin film as an inner layer and a foamed resin film as an outer layer, the method comprising: An annular inner layer resin passage is formed, an annular outer resin passage is formed by an outer cylinder fitted on the outer periphery of the inner cylinder, and an inner layer resin supply communicating with the inner resin passage is provided approximately at the center of the lower surface of the nozzle body. A mortar is provided, and an outer layer resin supply port is provided on the side of the outer layer resin passage, and the multilayer cylindrical resin film is passed through an annular slit for film forming where the inner layer resin passage and the outer layer resin passage merge at the upper part of the nozzle body. In the process of extrusion molding, the outer layer resin injected from the outer layer resin supply port flows left and right in the circumferential direction of the annular outer layer resin passage starting from the outer layer resin supply port.This is the outer layer resin supply port. Production of a cylindrical resin film characterized in that resin release pores communicating with the outside of the outer layer resin passage are provided at the merging point where they meet at exactly opposite positions, and the resin remaining at the merging point is discharged to the outside from the resin release pore. Method.
JP57111796A 1982-06-30 1982-06-30 Manufacture of tubular resin film Granted JPS592817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57111796A JPS592817A (en) 1982-06-30 1982-06-30 Manufacture of tubular resin film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57111796A JPS592817A (en) 1982-06-30 1982-06-30 Manufacture of tubular resin film

Publications (2)

Publication Number Publication Date
JPS592817A true JPS592817A (en) 1984-01-09
JPS6143170B2 JPS6143170B2 (en) 1986-09-26

Family

ID=14570366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57111796A Granted JPS592817A (en) 1982-06-30 1982-06-30 Manufacture of tubular resin film

Country Status (1)

Country Link
JP (1) JPS592817A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10356354A1 (en) * 2003-11-28 2005-06-30 Eta Kunstofftechnologie Gmbh Method and device for producing endless extrudates, in particular extruded or hollow profiles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326581U (en) * 1986-08-01 1988-02-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10356354A1 (en) * 2003-11-28 2005-06-30 Eta Kunstofftechnologie Gmbh Method and device for producing endless extrudates, in particular extruded or hollow profiles

Also Published As

Publication number Publication date
JPS6143170B2 (en) 1986-09-26

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