WO2017183379A1 - Matrice en t, son procédé de fabrication et procédé d'amélioration de l'aptitude au démoulage - Google Patents

Matrice en t, son procédé de fabrication et procédé d'amélioration de l'aptitude au démoulage Download PDF

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Publication number
WO2017183379A1
WO2017183379A1 PCT/JP2017/011483 JP2017011483W WO2017183379A1 WO 2017183379 A1 WO2017183379 A1 WO 2017183379A1 JP 2017011483 W JP2017011483 W JP 2017011483W WO 2017183379 A1 WO2017183379 A1 WO 2017183379A1
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WO
WIPO (PCT)
Prior art keywords
die
molten resin
flow path
nitrogen
resin flow
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.)
Ceased
Application number
PCT/JP2017/011483
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English (en)
Japanese (ja)
Inventor
植村　賢介
コンスタンチン シャルノフ
プルワディ　ラハルジョ
友子 重松
焼本　数利
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.)
Japan Steel Works Ltd
Shinmaywa Industries Ltd
Original Assignee
Japan Steel Works Ltd
Shinmaywa Industries Ltd
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Filing date
Publication date
Application filed by Japan Steel Works Ltd, Shinmaywa Industries Ltd filed Critical Japan Steel Works Ltd
Publication of WO2017183379A1 publication Critical patent/WO2017183379A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003—Materials, coating or lining therefor
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding

Definitions

  • the present invention relates to a T-die, a manufacturing method thereof, and a method for improving the release property of the molten resin with respect to the inner wall surface of the molten resin flow path and the surface of the lip portion inside the T-die.
  • the T die in the present invention include a T die having a slit-like discharge port, which is used for producing a film or sheet made of a thermoplastic resin material.
  • a method of extruding molten resin from the discharge port using a die having a slit-like discharge port called a T die is used.
  • a resin film for example, a film / sheet for optical resin
  • the die line means a stripe that is continuously generated in a specific position of the resin film corresponding to a specific position of the die along the extrusion direction of the resin film and is observable with the naked eye.
  • Patent Document 1 describes a T die in which a hard chromium plating layer is provided on the inner wall surface of a molten resin flow path (flowable material flow path).
  • Patent Document 2 discloses a T die coated with tungsten carbide.
  • Patent Document 3 describes that when resin waste adheres to the tip portion of the lip and accumulates, it becomes so-called “meani”, which adheres to the resin film and causes defective products.
  • Non-Patent Document 1 entitled “Surface carbonization and filling failure involving metal surface in injection molding of polybutylene terephthalate” includes defects such as surface carbonization phenomenon at the erased portion that occurs when plastic injection molding is performed.
  • the hard chrome plating may cause micro cracks (hair cracks) due to the difference in coefficient of linear expansion from the base material.
  • the molten resin is gradually deposited on the microcracks of the hard chromium plating layer provided on the inner wall surface of the molten resin flow path.
  • the molten resin gradually accumulates in the same manner on the dropped part. Then, the deposited molten resin is carbonized or oxidized, which generates a die line.
  • the lip portion has fine irregularities of 10 nm or more. In this case, it is considered that the molten resin enters, adheres, and is oxidized and deteriorated by contact with the atmosphere, thereby generating a die line.
  • the present inventor has intensively studied for the purpose of solving the above problems. Then, with respect to a conventional stainless steel T-die, nitrogen atoms are injected into the inner wall surface of the molten resin flow channel and the surface of the lip portion by a plasma nitriding method or the like, and the nitrogen atoms constitute the T-die.
  • a layer composed of a nitrogen-based intermetallic compound is formed on the surface by combining with an element (for example, iron or chromium), the layer is extremely excellent in releasability of the molten resin, has high hardness, and has a surface roughness. Since it was good, when the resin film was formed using the obtained T-die, it was found that a die line was extremely difficult to be formed over a long period of time, and the present invention was completed.
  • the present invention includes the following (1) to (6).
  • the manufacturing method of T-die with high hardness.
  • a stainless steel T-die for plastic molding that has a layer made of a nitrogen-based intermetallic compound on the inner wall surface of the molten resin flow path and the surface of the lip portion, and has excellent mold release properties and high hardness.
  • the T die according to (5) manufactured by the method of manufacturing a T die according to any one of (1) to (3) above.
  • the releasability of the molten resin with respect to the inner wall surface of the molten resin flow path and the surface of the lip portion is extremely high, the hardness is high, and the surface roughness is maintained at a low level.
  • rip part can be provided.
  • FIG. 3 is a graph showing the relationship between the temperature during plasma nitriding, the surface roughness Ra ( ⁇ m), and the hardness (HV Kgf / mm 2 ) obtained in an example.
  • the present invention relates to a method of manufacturing a stainless steel T die for plastic molding, which has a molten resin flow path inside and a lip portion at the discharge port, and plasma nitriding treatment is performed on an untreated T die.
  • a method for producing a T-die having excellent molten resin releasability and high hardness comprising a step of forming a layer made of a nitrogen-based intermetallic compound on the inner wall surface of the molten resin flow path and the surface of the lip portion. .
  • Such a method for producing a T-die having excellent mold releasability and high hardness is hereinafter also referred to as “the production method of the present invention”.
  • the present invention has a layer made of a nitrogen-based intermetallic compound on the inner wall surface of the molten resin flow path and the surface of the lip portion, and is excellent in the releasability of the molten resin and has high hardness, and is a stainless steel type for plastic molding T-die.
  • a stainless steel T-die for plastic molding that has excellent mold releasability and high hardness is hereinafter also referred to as “T-die of the present invention”.
  • the T-die of the present invention is preferably manufactured by the manufacturing method of the present invention.
  • FIG. 1 is a longitudinal sectional view of a preferred embodiment of the T die of the present invention
  • FIG. 2 is a side view showing an inner wall surface of a die body of the T die shown in FIG.
  • a T die 1 (T die 1) of the present invention has a die body 2 including a pair of die members 3 and 4.
  • a molten resin flow path 5 is formed between the die members 3 and 4. That is, the inner wall surfaces of the die members 3 and 4 constitute the molten resin flow path 5.
  • the molten resin flow path 5 has an inflow part 6, a manifold part 7, and a slit-like discharge part 8 in order from the upstream side.
  • a portion near the discharge port of the discharge portion 8 is a lip portion 9.
  • reference numerals 6 a, 7 a, and 8 a indicate wall surfaces of the die member 3 (4) in each of the inflow portion 6, the manifold portion 7, and the discharge portion 8.
  • a layer 20 (also referred to as a nitrogen-based intermetallic compound layer 20) made of a nitrogen-based intermetallic compound is formed on the inner wall surfaces of the die members 3 and 4 constituting the molten resin flow path 5 and the surface of the lip portion 9. ) Is formed.
  • the inflow portion 6 at the center in the longitudinal direction of the T-die 1 is connected to an extruder (not shown).
  • the molten resin is supplied into the molten resin flow path 5 from above.
  • the supplied molten resin flows into the manifold portion 7 having a substantially circular cross section extending in the longitudinal direction of the T die 1, spreads in the longitudinal direction of the T die 1, and then flows into the slit-like ejection portion 8. From the opening edge (discharge port) of the film, it is extruded on a roller (not shown) in the form of a film.
  • the shape of the T-die of the present invention is not particularly limited as long as it can be used for plastic molding of a film or the like, and may be the same shape as a conventionally known one.
  • the type of plastic to be molded such as a film is not particularly limited.
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • COP cycloolefin
  • PET polyethylene terephthalate
  • PBT polybutylene terephthalate
  • PAR Polyarylate
  • PI polyimide
  • PS polystyrene
  • PP polypropylene
  • PA polyamide
  • PA polyethylene
  • POM polyacetal
  • EVA ethylene-vinyl acetate copolymer resin
  • ABS styrene
  • PVC polyvinyl chloride
  • PPO polyphenylene oxide
  • the material of the die body provided in the T-die of the present invention is not particularly limited as long as it is stainless steel, and may be the same as that conventionally known, for example.
  • the nitrogen-based intermetallic compound layer of the T die of the present invention is composed of a nitrogen-based intermetallic compound formed by combining elements (for example, iron and chromium) constituting the die body and nitrogen, and this is a layered structure. It is.
  • the nitrogen-based intermetallic compound include Cr x N and Fe y N.
  • the nitrogen-based intermetallic compound layer is formed by injecting nitrogen atoms into the inner wall surface of the molten resin flow path and the surface of the lip portion in a conventionally known stainless steel T-die, so that the surface is coated as in plating In contrast, there is no strict boundary between the coating (nitrogen-based intermetallic compound layer) and the base material (die body).
  • a layer made of a nitrogen-based intermetallic compound is formed on the surface.
  • the inner side of the layer is a diffusion layer, and the inner side is a base material into which nitrogen does not enter.
  • the thickness of the nitrogen-based intermetallic compound layer is preferably approximately 10 to 50 ⁇ m, and more preferably 10 to 100 ⁇ m.
  • the T die of the present invention is formed by injecting nitrogen atoms into the inner wall surface of the molten resin flow path and the surface of the lip portion in a conventionally known stainless steel type T die. It is preferable to use plasma nitriding treatment. That is, the T die of the present invention is preferably manufactured by the manufacturing method of the present invention.
  • the plasma nitriding treatment may be a conventionally known one. For example, when a current is passed through a tungsten filament while injecting nitrogen gas, the nitrogen gas becomes a plasma state.
  • a negative bias is applied to an object to be plasma-nitrided (untreated T-die), nitrogen plasma (N + ) is targeted. It collides with the surface of the object (untreated T die) and is injected to produce Fe 4 N, Cr 4 N, or the like.
  • the filament current is 100 to 200 A
  • the discharge current is 100 to 300 A
  • the bias voltage for the object to be plasma-nitrided (untreated T-die) is 0.1 to 1000 V
  • the nitrogen pressure is 0.5 to 5 Pa and the treatment time are preferably 10 to 1000 minutes.
  • the bias voltage is preferably ⁇ 150 to ⁇ 400V. This is because the surface hardness is increased.
  • the temperature of the object to be treated (untreated T die) during the plasma nitriding treatment is preferably set to 250 to 350 ° C.
  • the temperature of the object to be processed (unprocessed T die) tends to increase as the magnitude of the bias voltage (absolute value of the negative bias voltage) is increased. Further, even if the time for which the bias voltage is continuously applied is lengthened, the temperature of the processing object (unprocessed T die) tends to increase similarly. Therefore, the temperature of the processing object (unprocessed T die) can be adjusted to a desired temperature by adjusting the magnitude of the bias voltage of the processing object (unprocessed T die) and the time for applying the bias voltage. it can.
  • the plasma nitriding treatment can be performed using a conventionally known apparatus.
  • a plasma ion implantation gun for performing plasma ion implantation processing by nitrogen plasma is installed in a vacuum chamber, and an untreated T die (which may be a conventionally known stainless steel T die) can be disposed at a position facing it.
  • An apparatus configured as described above can be used.
  • the method for improving releasability of the present invention is a method for improving the releasability of the molten resin with respect to the inner wall surface of the molten resin flow path inside the T die and the surface of the lip part.
  • the method includes a step of plasma nitriding the inner wall surface of the flow path and the surface of the lip portion to form a layer made of a nitrogen-based intermetallic compound.
  • a conventionally known stainless steel T die for plastic molding (that is, an untreated T die) is subjected to plasma nitriding treatment, and the inner wall surface of the molten resin channel and the surface of the lip portion And a step of forming a layer made of a nitrogen-based intermetallic compound.
  • the plasma nitriding method may be the same as the plasma nitriding treatment in the manufacturing method of the present invention described above.
  • Example 1 Steel pieces of steel types that can be used when manufacturing the T-die were prepared, and these were subjected to plasma nitriding treatment under various conditions to obtain test pieces. The test piece was subjected to a hardness measurement test, a surface roughness measurement test, and a releasability test using a cycloolefin polymer (COP) resin. This is specifically described below.
  • COP cycloolefin polymer
  • the steel slab is a steel for plastic molds having the composition shown in Table 1 below (made by UDDEHOLM, trade name: Stabux).
  • the size of the steel piece is 10 mm ⁇ 10 mm ⁇ thickness 2 mm.
  • the surface of the surface used is polished with abrasive grains and finished so that Ra is 0.005 ⁇ m (ISO 4287). .
  • the above steel pieces were subjected to plasma nitriding treatment under various conditions shown in Table 2 below to obtain test pieces.
  • plasma nitriding treatment trade name: PINK manufactured by Shin Meiwa Kogyo Co., Ltd. was used.
  • the hardness measurement test was performed based on the micro Vickers hardness test (indentation load 10 gf).
  • the surface roughness measurement test was performed by calculating the arithmetic average roughness (Ra) based on JIS B 0601.
  • the contact angle measured by the measurement procedure specifically shown below is large, when the COP resin is actually melted using a T die to produce a molded product of the COP resin, It can be judged that the releasability is high with respect to the surface.
  • the actual use atmosphere of the T-die is air, whereas the contact angle is measured in a nitrogen atmosphere. This is to evaluate the releasability from the basic resin on the metal surface after removing the influence of oxidation and carbonization. Although it is actually exposed to the atmosphere, the effects of carbonization and oxidation enter, and the characteristics of the metal surface itself cannot be grasped. Moreover, the influence of oxidation can be avoided to some extent by making the T die lip a nitrogen atmosphere.
  • the contact angle measurement procedure is as follows. [1] COP resin pellets were previously dried at 80 ° C. for 4 hours or more. [2] The test piece was loaded into an infrared heating furnace, COP resin pellets were placed on the surface thereof, and the temperature was raised from 25 ° C. (normal temperature) to 295 ° C. in 3 minutes in a nitrogen atmosphere. [3] After reaching 295 ° C., this temperature was maintained, and the contact angle was measured after 1 minute. For the measurement of the contact angle, a solid-liquid contact angle measuring device (WET-1200, manufactured by ULVAC-RIKO), which is a constant temperature wettability tester, was used. Based on this measurement result, the contact angle was calculated according to JIS R 3257 “Testing method for wettability of substrate glass surface”.
  • the test piece obtained by plasma nitriding treatment under various conditions by the above method was subjected to a hardness measurement test, a surface roughness measurement test, and a contact angle measurement. For comparison, a similar test was performed on a steel piece that was not plasma-nitrided.
  • FIG. 3 the photograph which shows the mode of a COP resin pellet when the inside of said solid-liquid contact angle measuring apparatus reaches
  • FIG. 4 is a graph in which the horizontal axis (X-axis) is temperature (° C.) (temperature when plasma nitriding is performed), and the vertical axis (Y-axis) is the contact angle (measurement result of COP resin contact angle at 295 ° C.). is there.
  • FIG. 4 shows the fact that the bias voltage is described in each measured value, and the contact angle cannot be explained only by the temperature.
  • the bias voltage value is 300 V and the temperature during plasma nitriding is 240 to 320 ° C.
  • the bias voltage value is 350 V and the plasma nitriding time is
  • the relationship between the temperature during plasma nitriding, the surface roughness Ra ( ⁇ m) and the hardness (HV Kgf / mm 2 ) was graphed. As shown in FIG.
  • the test piece subjected to the plasma nitriding treatment showed a contact angle of about 39 ° to more than 54 °, compared with 35 ° of the untreated steel piece. It was confirmed that it had a high contact angle.
  • the hardness of the untreated steel slab was HV550, whereas the hardness of the test specimen subjected to the plasma nitriding treatment increased to HV1300 at the maximum. Such an increase in hardness is thought to be because nitrogen atoms enter the steel by the plasma nitriding treatment to produce Cr 4 N, Fe 4 N intermetallic compounds.
  • the surface roughness of the test piece became rough compared with the case of the surface roughness of the untreated steel piece (Ra: 0.005), it is determined that the T die can be used practically.
  • Example 2 In test piece # 3 having a maximum treatment temperature of 350 ° C., slight coloring (considered as oxidation) occurred after storage in the atmosphere for about one month after the end of observation. This is presumably because the corrosion resistance of the steel material was slightly lost by the plasma nitriding treatment. If the corrosion resistance is significantly impaired, the commercial value is impaired. In consideration of this coloring, an accelerated test was carried out based on the Arrhenius equation, assuming 1-year atmospheric preservation. As a result, in the case of a test piece subjected to a plasma nitriding temperature of 320 ° C. or less, this coloring phenomenon was not observed.
  • the molten fine transfer (registered trademark) method in which the molten resin is applied to the mold while discharging the molten resin from the T die is performed using the T die of the present invention
  • the molten resin and the lip portion of the T die are used in the T die of the present invention. Since the releasability is improved, it is considered that a smooth coating surface property is realized, and the resin can be applied to a low temperature mold at a high speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention décrit le problème de la fourniture d'un procédé de fabrication d'une matrice en T n'engendrant pas de bavure de matrice. La solution de l'invention porte sur un procédé de fabrication d'une matrice en T en acier inoxydable pour le moulage de plastique, la matrice en T ayant un trajet d'écoulement de résine fondue dans cette dernière et une partie lèvre au niveau d'un orifice d'éjection de cette dernière, et ayant une excellente aptitude au démoulage de résine fondue et une rigidité élevée. Le procédé comprend une étape consistant à soumettre une matrice en T non traitée à un traitement de nitruration au plasma pour former une couche constituée d'un composé intermétallique d'azote sur une surface de paroi interne du trajet d'écoulement de résine fondue et sur une surface de la partie lèvre.
PCT/JP2017/011483 2016-04-18 2017-03-22 Matrice en t, son procédé de fabrication et procédé d'amélioration de l'aptitude au démoulage Ceased WO2017183379A1 (fr)

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JP2016083156A JP2017193070A (ja) 2016-04-18 2016-04-18 Ｔダイ、その製造方法および離型性向上方法
JP2016-083156 2016-04-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020132922A (ja) * 2019-02-15 2020-08-31 中日本炉工業株式会社 プラズマ窒化方法

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CN111989217A (zh) 2018-04-16 2020-11-24 株式会社可乐丽 层叠片及其制造方法以及带保护罩的显示器
CN111070681B (zh) * 2019-11-12 2021-10-19 深圳职业技术学院 一种3d打印机喷头及具有其的3d打印机
JP7454859B2 (ja) * 2021-07-02 2024-03-25 株式会社サーフテクノロジー 部材の表面処理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06315966A (ja) * 1993-05-06 1994-11-15 Sekisui Chem Co Ltd 押出成形用金型
JP2007168260A (ja) * 2005-12-22 2007-07-05 Asahi Kasei Chemicals Corp 押出し成形方法及びポリフェニレンエーテル系樹脂フィルム
JP2009083307A (ja) * 2007-09-28 2009-04-23 Nippon Shokubai Co Ltd 光学用フィルムの製造方法
JP2009202547A (ja) * 2008-02-29 2009-09-10 Jsr Corp 樹脂シートの製造方法およびそれにより得られた樹脂シート

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06315966A (ja) * 1993-05-06 1994-11-15 Sekisui Chem Co Ltd 押出成形用金型
JP2007168260A (ja) * 2005-12-22 2007-07-05 Asahi Kasei Chemicals Corp 押出し成形方法及びポリフェニレンエーテル系樹脂フィルム
JP2009083307A (ja) * 2007-09-28 2009-04-23 Nippon Shokubai Co Ltd 光学用フィルムの製造方法
JP2009202547A (ja) * 2008-02-29 2009-09-10 Jsr Corp 樹脂シートの製造方法およびそれにより得られた樹脂シート

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020132922A (ja) * 2019-02-15 2020-08-31 中日本炉工業株式会社 プラズマ窒化方法
JP7295511B2 (ja) 2019-02-15 2023-06-21 中日本炉工業株式会社 プラズマ窒化方法

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