WO2019117300A1 - Dispositif tambour de coulage et procédé de fabrication de film/feuille de résine synthétique mettant en oeuvre ledit dispositif - Google Patents

Dispositif tambour de coulage et procédé de fabrication de film/feuille de résine synthétique mettant en oeuvre ledit dispositif Download PDF

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Publication number
WO2019117300A1
WO2019117300A1 PCT/JP2018/046160 JP2018046160W WO2019117300A1 WO 2019117300 A1 WO2019117300 A1 WO 2019117300A1 JP 2018046160 W JP2018046160 W JP 2018046160W WO 2019117300 A1 WO2019117300 A1 WO 2019117300A1
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WO
WIPO (PCT)
Prior art keywords
casting drum
synthetic resin
sheet
resin film
drum device
Prior art date
Application number
PCT/JP2018/046160
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English (en)
Japanese (ja)
Inventor
小川　剛
務 平地
定昭 阿久津
Original Assignee
三菱ケミカルエンジニアリング株式会社
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.)
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Publication date
Application filed by 三菱ケミカルエンジニアリング株式会社 filed Critical 三菱ケミカルエンジニアリング株式会社
Publication of WO2019117300A1 publication Critical patent/WO2019117300A1/fr

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    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/89—Internal treatment, e.g. by applying an internal cooling fluid stream

Definitions

  • the present invention relates to a casting drum apparatus used in forming a synthetic resin film / sheet and a method of producing a synthetic resin film / sheet using the casting drum apparatus.
  • the synthetic resin film / sheet is produced by a melt extrusion molding method, a solution casting method or the like.
  • Melt extrusion molding is the most common method for producing synthetic resin films and sheets, and it is made by extruding a thermoplastic resin heated and melted in an extruder from a discharge port of an extrusion mold and cooling it on a drum. , Synthetic resin film sheets are manufactured.
  • the solution casting method is a production method often used when producing a synthetic resin film or sheet using a resin which is easily decomposed when melted or a resin having a high melting point, and a solution obtained by dissolving a synthetic resin in a solvent is
  • the synthetic resin film / sheet is produced by heating and drying the solution after being supplied onto a drum or a smooth belt having a smooth surface.
  • Synthetic resin films and sheets produced by solution casting do not have polymer orientation, so there is no directionality in strength or optical properties, high thickness accuracy, and excellent smoothness, transparency and gloss etc. It is often used in optical applications because it has excellent physical properties and characteristics.
  • Patent Document 1 As shown in FIG. 4, an outer cylinder 21, an inner cylinder 22, a spiral groove partition 24 that divides a gap 23 between the outer cylinder 21 and the inner cylinder 22, one shaft 25, the other shaft 26, and A casting drum 20 is disclosed in which a liquid heat medium branch pipe 27 is integrally formed.
  • the casting drum 20 is supported and rotated by one shaft 25 and the other shaft 26, and the cooling water flows from the inside of one shaft 25 ⁇ the liquid heat medium branch pipe 27 ⁇ the gap between the outer cylinder 21 and the inner cylinder 22.
  • the surface of the casting drum 20 is cooled by being supplied through a route of 23 ⁇ liquid heat medium branch pipe 27 ⁇ the inside of the other shaft 26.
  • Patent Document 2 discloses that any heating method such as infrared heating, contact with heated gas, electromagnetic induction heating, gas heater heating, etc. is used as a heating method when solidifying a polycarbonate resin solution on a metal belt. .
  • the surface temperature of the drum-type roll is 3 ° C./hr or less in forming a film by casting a stock solution containing a polyvinyl alcohol-based resin on a drum-type roll heated by passing through a die. It is disclosed to start casting after raising the temperature to the range of 70 to 100.degree.
  • a heating means of this drum type roll steam, a heating medium, warm water, an electric heater, etc. are mentioned, Moreover, when using a heater, an induction heating coil, etc. as a heat source, in order to control temperature nonuniformity. It is mentioned to narrow the interval of
  • a shaft, a spoke, a trunk What integrally formed component members, such as a part, is used.
  • the casting drum is supported and rotated by the shaft, and a heating medium / cooling medium is supplied to heat and cool the surface of the body.
  • the casting drum has been increased in size (for example, 4 m in diameter and 6 m in width) to meet the demand and demand for mass production, widening, and thinning of synthetic resin films and sheets (for example, large size) It takes a lot of energy to rotationally drive the casting drum with increased weight and weight, and furthermore, since the casting drum with large and increased weight is supported and rotated by the shaft, deflection by the weight of the casting drum is large Therefore, it is difficult to keep the film thickness of the synthetic resin film / sheet uniform. Further, although it is possible to adopt a metal belt as disclosed in Patent Document 2 in place of the casting drum, the use of a metal belt causes problems such as high equipment cost.
  • the surface temperature of the entire circumference of the casting drum can be uniformly heated as disclosed in Patent Document 3 Depending on the position where the casting drum surface is in contact with a solution in which a synthetic resin is dissolved in a solvent or a molten synthetic resin (hereinafter also referred to as "liquid synthetic resin"), cooling is not performed. The need arises to set and control the heating temperature.
  • the inventors of the present invention have made earnest studies to solve the above problems and have made the present invention. That is, even when the casting drum is enlarged, the object of the present invention can be rotationally driven economically and efficiently, and the film thickness of the synthetic resin film / sheet can be kept uniform, and the synthetic resin film ⁇ Material of sheet, resin for casting, synthetic resin film, casting drum apparatus according to the physical properties and characteristics required for the sheet, and the like, and a casting drum apparatus capable of freely setting and controlling the surface temperature of the casting drum, and synthesis using this casting drum apparatus It is providing a manufacturing method of a resin film sheet.
  • the casting drum device of the present invention is rotatable relative to the fixed shaft so as to cover the fixed shaft, the heating means and / or the cooling means disposed on the surface of the fixed shaft, and the heating means and / or the cooling means.
  • the method for producing a synthetic resin film / sheet using the casting drum device according to the present invention solves the above-mentioned problems by producing a synthetic resin film / sheet using the casting drum device as described above. It is.
  • a casting drum device used when molding a synthetic resin film or sheet With a fixed axis, Heating means and / or cooling means disposed on the surface of the fixed shaft; A hollow cylindrical rotary ring rotatably provided relative to the fixed shaft so as to cover the heating means and / or the cooling means; A casting drum apparatus characterized in that the rotating ring is heated and / or cooled by the heating means and / or the cooling means.
  • the heating means and / or the cooling means are disposed on the surface of the fixed shaft according to the material resin of the synthetic resin film / sheet, the physical properties / characteristics required for the synthetic resin film / sheet, etc.
  • the casting drum apparatus characterized in that (3) In a cross section where the heating means and / or the cooling means are orthogonal to the central axis of the rotary ring, the surface on the rotary ring side of the heating means and / or the cooling means is substantially parallel to the inner surface of the rotary ring.
  • the heating means and / or the cooling means are disposed on the surface of the fixed shaft so as to be substantially parallel to the central axis of the rotary ring, in (1) to (3)
  • the casting drum apparatus in any one.
  • the casting drum device according to any one of (1) to (4), wherein the heating means and / or the cooling means are a plurality of strip-like heating means and / or cooling means.
  • the heating means is an induction coil, and an alternating current is caused to flow through the induction coil to generate magnetic flux lines of varying strength, thereby heating the rotary ring.
  • the casting drum apparatus according to any one of the above.
  • the heating means is an infrared heater, and current is supplied to the infrared heater to generate infrared rays, thereby heating the rotating ring, according to any one of (1) to (5). Casting drum apparatus as described.
  • the cooling means is a cooling means for supplying a cooling medium to a passage and / or a cooling means for spraying a cooling medium on the inner surface of the rotary ring, any of (1) to (7) Casting drum device described in.
  • the rotary ring is a laminated hollow cylinder formed of an inner layer of carbon fiber reinforced plastic (CFRP), an outer layer of stainless steel, or a hollow cylinder of carbon fiber reinforced plastic (CFRP), The casting drum device according to any one of (1) to (8).
  • the casting drum device according to any one of (1) to (10), further comprising: a cooling device for blowing a cooling medium toward the surface of the rotary ring around the rotary ring.
  • a synthetic resin film / sheet is formed from a solution in which a synthetic resin is dissolved in a solvent or a molten synthetic resin.
  • the casting drum device is configured to include a fixed shaft having heating means and / or cooling means disposed on the surface, and a hollow cylindrical rotary ring rotatably provided about the fixed shaft.
  • a fixed shaft having heating means and / or cooling means disposed on the surface
  • a hollow cylindrical rotary ring rotatably provided about the fixed shaft.
  • the direction of rotation of the rotating ring by adjusting the arrangement of the heating and / or cooling means on the surface of the fixed shaft and / or the shape of the fixed shaft on which a) the heating and / or cooling means are arranged It becomes possible to freely set and control the surface temperature of the rotary ring in the direction parallel to the longitudinal direction of the synthetic resin film / sheet and the central axis of the rotary ring (the width direction of the synthetic resin film / sheet).
  • the surface temperature of the rotary ring can be freely set and controlled in accordance with the physical properties and characteristics required for the material resin of the film and sheet, and the synthetic resin film and sheet.
  • the casting drum is enlarged by producing a synthetic resin film or sheet using the casting drum device as described above.
  • synthetic resin films and sheets can be produced economically and efficiently.
  • a synthetic resin film / sheet having a uniform film thickness can be easily produced, and a synthetic resin film / sheet having the required physical properties and characteristics can be easily produced.
  • FIG. 10 It is a schematic diagram of the cross section containing the central axis of a rotating ring which shows embodiment of the casting drum apparatus of this invention. It is a schematic diagram which shows the AA cross section of FIG. It is the elements on larger scale of FIG. A conventional example shown in FIG. 10
  • the synthetic resin film / sheet is produced by a melt extrusion molding method, a solution casting method or the like.
  • Melt extrusion molding is the most common method for producing synthetic resin films and sheets, and it is made by extruding a thermoplastic resin heated and melted in an extruder from a discharge port of an extrusion mold and cooling it on a drum. A synthetic resin film sheet is produced.
  • the solution casting method is a production method often used when producing a synthetic resin film or sheet using a resin which is easily decomposed when melted or a resin having a high melting point, and a solution obtained by dissolving a synthetic resin in a solvent is After being supplied onto a drum or a smooth belt having a smooth surface, a synthetic resin film / sheet is produced by heating and drying. Synthetic resin films and sheets produced by solution casting do not have polymer orientation, so there is no directionality in strength or optical properties, high thickness accuracy, and excellent smoothness, transparency and gloss etc. It is often used in optical applications because it has excellent physical properties and characteristics.
  • a casting drum 20 in which a heat medium branch pipe 27 is integrally formed is used, and the casting drum 20 is supported and rotated by one shaft 25 and the other shaft 26, and the cooling water is provided inside the one shaft 25.
  • the liquid heat medium branch pipe 27 ⁇ the gap 23 between the outer cylinder 21 and the inner cylinder 22 ⁇ the liquid heat medium branch pipe 27 ⁇ the inside of the other shaft 26 is supplied, and the surface of the casting drum 20 is cooled.
  • a cooling medium such as water is supplied into the casting drum in order to cool the liquid synthetic resin (Patent Document 1).
  • a heating medium such as steam or warm water is supplied into the casting drum, or a heat source such as an electric heater or an induction heating coil is used to remove the solvent from the liquid synthetic resin. And 3).
  • FIG. 1 is a schematic view of a cross section including the central axis 9 of the rotary ring 4
  • FIG. 2 is a schematic view showing an AA cross section of FIG. 1
  • FIG. 3 is a partially enlarged view of FIG.
  • the main features of the casting drum device of the present invention are: 1) A fixed shaft 2 on the surface of which heating means and / or cooling means 3 are arranged, and a hollow cylindrical rotary ring 4 rotatably attached to the fixed shaft 2 And 2) heating and / or cooling means 3 arranged on the surface of the fixed shaft 2 is configured to heat and / or cool the rotary ring 4.
  • the casting drum device 1 of the present invention can be rotationally driven economically and efficiently even when the casting drum is enlarged. Furthermore, in the casting drum device 1 of the present invention, as in the conventional case, the entire casting drum is not supported by the shaft and rotated, but only the rotating ring 4 needs to be supported and rotated. Even when the size of the casting drum is increased, the weight of the rotating part can be reduced, and the support interval of the rotating part can be shortened, so that the deflection of the casting drum due to its own weight can be suppressed small.
  • the film thickness of 5 can be easily kept uniform.
  • the casting drum device 1 of the present invention is a) heating means and / or according to the material resin of the synthetic resin film / sheet 5 and the physical properties / characteristics required for the synthetic resin film / sheet 5
  • the surface temperature of the rotary ring 4 can be freely set by adjusting the shape of the fixed shaft 2 on which the cooling means 3 is arranged and / or b) the arrangement of the heating means and / or the cooling means 3 on the surface of the fixed shaft 2 ⁇ Can be controlled.
  • the rotation direction of the rotary ring 4 (longitudinal direction of the synthetic resin film / sheet 5) and the direction parallel to the central axis 9 of the rotary ring 4 (synthetic resin film
  • the surface temperature of the rotary ring 4 in the width direction of the sheet 5 can be freely set and controlled.
  • the basic technical idea of the present invention is to set and control the surface temperature of the rotary ring 4 by the heating means and / or the cooling means 3 disposed separately from the rotary ring 4, and the fixed shaft 2 is These heating means and / or cooling means 3 are used as suitable means for placing at predetermined positions.
  • the surface 3A on the rotary ring 4 side of the heating means and / or the cooling means 3 is provided in the cross section orthogonal to the central axis 9 of the rotary ring 4
  • the heating means and / or the cooling means 3 are arranged on the surface of the fixed shaft 2 so as to be substantially parallel to the inner surface 4A of 4.
  • the surface 3 A on the rotary ring 4 side of the heating means and / or the cooling means 3 is an arc centered on the central axis 9 of the rotary ring 4 It is preferable to arrange the heating means and / or the cooling means 3 on the surface of the fixed shaft 2 so as to be roughly above.
  • ⁇ Shape of fixed shaft> As the shape (surface shape, cross-sectional shape, etc.) of the fixed shaft 2, an appropriate shape capable of disposing the heating means and / or the cooling means 3 at a position where the surface temperature of the rotary ring 4 can be appropriately set and controlled can be adopted. .
  • the surface temperature of the rotary ring 4 can be adjusted according to the distance between the rotary ring 4 and the heating means and / or the cooling means 3. It is also possible to set and control the distribution of the surface temperature of the rotary ring 4 with the shape being an elliptical shape.
  • the heating means and / or the cooling means 3 is the center of the rotating ring 4 It is preferable to arrange on the surface of the fixed shaft 2 so as to be substantially parallel to the shaft 9.
  • Heating means and / or the cooling means As the heating means and / or the cooling means 3, heating means and cooling means generally used in casting drums as described in Patent Documents 1 to 3 can be adopted.
  • the heating means include heating means using electromagnetic induction, heating means using an infrared heater, heating means using a heating medium, heating means using a gas heater, and the like;
  • the cooling means etc. which supply a cooling medium to, or spray a cooling medium etc. are mentioned.
  • the following method can be used to set and control the surface temperature of the rotary ring 4.
  • the surface temperature of the rotary ring 4 is the rotation direction of the rotary ring 4 (longitudinal direction of synthetic resin film / sheet 5) and central axis of the rotary ring 4 It can be set and controlled freely in parallel with 9 (in the width direction of the synthetic resin film / sheet 5).
  • ⁇ Heating means> As the heating means in the heating means and / or the cooling means 3, a known induction heating means capable of heating the separated rotary ring 4 can be used, but the response is good and the surface temperature of the rotary ring 4 is finely set. -It is preferable to employ an induction heating means using an induction coil, a heating means using an infrared heater, and the like, as it can be controlled.
  • the induction heating means (IH) using an induction coil heats the rotary ring 4 by flowing an alternating current through the induction coil to generate magnetic lines of force with varying strength, and has recently been used for cooking utensils etc. It is Further, the heating means (IR) using an infrared heater heats the rotary ring 4 by supplying an electric current to the infrared heater to generate an infrared ray, and is used for a heating device or the like.
  • ⁇ Cooling means> As a cooling means in the heating means and / or the cooling means 3, a path such as a conduit is provided on the surface of the fixed shaft 2, and a cooling means for supplying a cooling medium to this path and / or a nozzle etc. It is possible to use a cooling means or the like which has a blowout port and sprays a cooling medium on the inner surface 4A of the rotary ring 4 from this blowout port, but from the viewpoint of responsiveness, cooling efficiency, etc. It is preferable to use a cooling means for blowing a cooling medium.
  • the material of the fixed shaft 2 and the rotary ring 4 is not particularly limited, but stainless steel can be preferably used from the viewpoint of physical properties, characteristics, cost and the like.
  • the weight of the fixed shaft 2 can be reduced by making the fixed shaft 2 hollow as long as the required strength can be secured.
  • the rotary ring 4 is preferably a hollow cylinder made of stainless steel from the viewpoints of physical properties, properties, cost, weight reduction and the like.
  • a laminated hollow cylinder formed of an inner layer made of carbon fiber reinforced plastic (CFRP) and an outer layer made of stainless steel, and carbon fiber reinforced plastic (CFRP) More preferably, the hollow cylinder is made of
  • the surface of the rotary ring 4 it is preferable to metal-plate the surface of the rotary ring 4 in order to prevent damage.
  • the type of metal plating for example, chromium plating, nickel plating, zinc plating, etc. are suitably used, and it can be used alone or in combination of two or more types of layers, but in particular the ease of surface smoothing and its durability
  • the outermost surface is preferably plated with chromium, and the surface roughness is preferably 3S or less, particularly 0.5S or less.
  • a publicly known general method can be adopted as a method of rotationally driving the rotary ring 4.
  • various gears can be provided at the end of the rotary ring 4 and can be rotationally driven by an electric motor.
  • a non-backcrash gear capable of rotating the rotary ring 4 without spots can be used.
  • the weight can be reduced to reduce the slippage, it is also possible to drive the rotary ring 4 with a belt.
  • the casting drum device of the present invention preferably comprises a cooling device 8 for supplying a cooling medium such as air or mist toward the surface of the rotary ring 4 around the rotary ring 4.
  • the temperature of the liquid synthetic resin 7 and / or the synthetic resin film / sheet 5 can be set and controlled more appropriately by the auxiliary cooling using the cooling device 8.
  • the temperature of the sheet 5 can be appropriately set and controlled, and the releasability of the synthetic resin film / sheet 5 can be improved.
  • the method for producing a synthetic resin film / sheet using the casting drum device according to the present invention can produce a synthetic resin film / sheet 5 using the above-mentioned casting drum device, even when the casting drum is upsized. Since the rotation distance can be driven economically and efficiently, and the supporting distance of the rotating part can be shortened, the deflection of the casting drum due to its own weight can be reduced, and the synthetic resin film having a uniform thickness can be obtained.
  • the sheet 5 can be easily manufactured.
  • the heating means and / or the cooling means 3 are arranged on the surface of the fixed shaft 2 and / or the shape of the fixed shaft 2 on which a) the heating means and / or the cooling means 3 are arranged
  • the surface temperature of the rotary ring 4 in the direction of rotation of 4 (longitudinal direction of the synthetic resin film / sheet 5) and in the direction parallel to the central axis 9 of the rotary ring 4 (width direction of the synthetic resin film / sheet 5) -It becomes possible to control, and the surface temperature of the casting drum can be freely set and controlled according to the physical properties and characteristics required for the resin of the synthetic resin film and sheet 5, and the synthetic resin film and sheet 5, etc. .
  • the casting drum device is configured to include the fixed shaft and the hollow cylindrical rotating ring rotatably attached to the fixed shaft, thereby reducing the weight of the rotating portion Even when the casting drum is enlarged, it can be rotationally driven economically and efficiently. Furthermore, the weight of the rotating portion can be reduced, the supporting distance of the rotating portion can be shortened, and the rigidity of the cross section can be increased, so that the bending of the casting drum due to its own weight can be reduced.
  • the film thickness of the synthetic resin film / sheet can be kept uniform.
  • the direction of rotation of the rotating ring by adjusting the arrangement of the heating and / or cooling means on the surface of the fixed shaft and / or the shape of the fixed shaft on which a) the heating and / or cooling means are arranged It becomes possible to freely set and control the surface temperature of the rotating ring in the direction parallel to the longitudinal axis of the synthetic resin film / sheet 5 and the central axis of the rotating ring (the width direction of the synthetic resin film / sheet 5)
  • the surface temperature of the casting drum can be freely set and controlled according to the physical properties and characteristics required of the synthetic resin film / sheet material resin and the synthetic resin film / sheet.
  • the casting drum is enlarged by producing a synthetic resin film or sheet using the casting drum device as described above.
  • synthetic resin films and sheets can be produced economically and efficiently.
  • a synthetic resin film / sheet having a uniform film thickness can be easily produced, and a synthetic resin film / sheet having the required physical properties and characteristics can be easily produced.

Abstract

L'invention concerne un dispositif tambour de coulage et un procédé de fabrication d'un film/feuille de résine synthétique au moyen de ce dispositif, une épaisseur de film uniforme d'un film/feuille de résine synthétique pouvant être assurée même lorsque le tambour de coulage présente une taille accrue, et la température de surface du tambour pouvant être définie/régulée librement en fonction de la résine de matériau du film/feuille de résine synthétique et des propriétés/caractéristiques physiques, etc., requises dans le film/feuille de résine synthétique. Le dispositif tambour de coulage selon l'invention permet de traiter le problème mentionné ci-dessus, étant donné qu'il est constitué de sorte à être pourvu d'un arbre fixe, d'un moyen de chauffage et/ou d'un moyen de refroidissement disposé sur la surface de l'arbre fixe, et une bague rotative cylindrique creuse fixée rotative sur l'arbre fixe de sorte à recouvrir le moyen de chauffage et/ou le moyen de refroidissement, la bague rotative étant chauffée et/ou refroidie par le moyen de chauffage et/ou le moyen de refroidissement. Le procédé de fabrication d'un film/feuille de résine synthétique mettant en oeuvre le dispositif tambour de coulage selon l'invention permet de traiter le problème mentionné ci-dessus par fabrication d'un film/feuille de résine synthétique au moyen de ce dispositif.
PCT/JP2018/046160 2017-12-15 2018-12-14 Dispositif tambour de coulage et procédé de fabrication de film/feuille de résine synthétique mettant en oeuvre ledit dispositif WO2019117300A1 (fr)

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JP2017240566A JP6758276B2 (ja) 2017-12-15 2017-12-15 キャスティングドラム装置およびこのキャスティングドラム装置を用いた合成樹脂フィルム・シートの製造方法
JP2017-240566 2017-12-15

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WO2019117300A1 true WO2019117300A1 (fr) 2019-06-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273423A (en) * 1939-06-23 1942-02-17 Budd Industion Heating Inc Electrically heated roll
JPS5865628A (ja) * 1981-09-12 1983-04-19 Toray Ind Inc 熱可塑性シ−ト状物の成形方法
JP2010017943A (ja) * 2008-07-11 2010-01-28 Hitachi Zosen Corp 薄膜状樹脂成形用押さえロール
WO2012069186A1 (fr) * 2010-11-26 2012-05-31 Breyer Gmbh Procédé et dispositif permettant la fabrication d'un extrudat
WO2013080925A1 (fr) * 2011-11-29 2013-06-06 東レ株式会社 Procédé de fabrication d'un film de protection de surface, et appareil de fabrication et film de protection de surface
US20170232654A1 (en) * 2016-02-16 2017-08-17 Colines S.P.A. Thermoregulation system of rotating metal cylinders in plants for extrusion and conversion/transformation of plastic films by infrared heaters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW457183B (en) * 1997-07-09 2001-10-01 Toray Ind Co Ltd Method of producing thermoplastic resin films and apparatus for producing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273423A (en) * 1939-06-23 1942-02-17 Budd Industion Heating Inc Electrically heated roll
JPS5865628A (ja) * 1981-09-12 1983-04-19 Toray Ind Inc 熱可塑性シ−ト状物の成形方法
JP2010017943A (ja) * 2008-07-11 2010-01-28 Hitachi Zosen Corp 薄膜状樹脂成形用押さえロール
WO2012069186A1 (fr) * 2010-11-26 2012-05-31 Breyer Gmbh Procédé et dispositif permettant la fabrication d'un extrudat
WO2013080925A1 (fr) * 2011-11-29 2013-06-06 東レ株式会社 Procédé de fabrication d'un film de protection de surface, et appareil de fabrication et film de protection de surface
US20170232654A1 (en) * 2016-02-16 2017-08-17 Colines S.P.A. Thermoregulation system of rotating metal cylinders in plants for extrusion and conversion/transformation of plastic films by infrared heaters

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JP6758276B2 (ja) 2020-09-23

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