JPS62169622A - Fabrication of film - Google Patents
Fabrication of filmInfo
- Publication number
- JPS62169622A JPS62169622A JP61010997A JP1099786A JPS62169622A JP S62169622 A JPS62169622 A JP S62169622A JP 61010997 A JP61010997 A JP 61010997A JP 1099786 A JP1099786 A JP 1099786A JP S62169622 A JPS62169622 A JP S62169622A
- Authority
- JP
- Japan
- Prior art keywords
- pctfe
- thermoplastic resin
- film
- outsides
- intermediate layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims abstract description 27
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 claims abstract description 27
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 15
- -1 polychlorotrifluoroethylene Polymers 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 229920005672 polyolefin resin Polymers 0.000 claims description 3
- 239000010408 film Substances 0.000 abstract description 18
- 239000010410 layer Substances 0.000 abstract description 10
- 239000000155 melt Substances 0.000 abstract description 6
- 239000002356 single layer Substances 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 4
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 229920000098 polyolefin Polymers 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はフッ素樹脂であるポリクロロトリフルオロエチ
レン（以下ＰＣＴＦＥと略記する）の共押出方式を利用
したフィルムの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for producing a film using a coextrusion method of polychlorotrifluoroethylene (hereinafter abbreviated as PCTFE), which is a fluororesin.
フッ素樹脂は一般に「テフロン」と呼ばれるゴリテトラ
フルオロエチレン（以下ＰＴＦＥと略す）が広い分野に
使用されている。しかしＦｒＦＥは溶融温度が非常に高
く又溶融粘度も成形が困難なほど高いため、一般の熱可
塑性樹脂の様な成形は不可能であった。ところが近年、
溶融成形が可能な種々のフッ素樹脂が作られ既に、押出
成形などによシ色々な用途に使われ始めている。溶融成
形可能なフッ素樹脂の中で、ＰＣＴＦＥは防湿性が熱可
塑性樹脂の中で最も優れた亀のであシ、フィルムができ
れば液晶表示体を始めとするエレクトロニクス分野から
、錠剤の包装など包装分野まで広く利用される。As a fluororesin, golytetrafluoroethylene (hereinafter abbreviated as PTFE), which is generally called "Teflon", is used in a wide range of fields. However, since FrFE has a very high melting temperature and a melt viscosity so high that it is difficult to mold, it has been impossible to mold it like general thermoplastic resins. However, in recent years,
Various fluororesins that can be melt-molded have already been produced and are being used for various purposes such as extrusion molding. Among the fluororesins that can be melt-molded, PCTFE has the best moisture resistance among thermoplastic resins, and if it can be made into a film, it can be used in the electronics field such as liquid crystal displays, and in the packaging field such as tablet packaging. Widely used.
しかし、ＰＣＴＦＥは加工に必要な溶融粘度を得る温度
と分解開始温度とがかなシ接近しているため、フィルム
成形は不可能であった。たとえフィルム状に成形しても
、分子量が極度に低下してお多使用に耐え得るものでは
なかった。However, since the temperature at which PCTFE achieves the melt viscosity necessary for processing and the temperature at which decomposition begins are very close to each other, it has been impossible to form PCTFE into a film. Even if it were formed into a film, the molecular weight would be extremely low and it would not be able to withstand frequent use.
本発明者は従来フィルム成形できなかったＰＣＴＦＥの
フィルムを得んとしてその製造方法について研究を行な
った。物性を保持したフィルムを成形するには、分解開
始温度よシ低くする必要がある。しかし、その場合溶融
粘度が非常に高く、一般の単層によるフィルム押出成形
はほとんど不可能であった。The present inventor conducted research on a manufacturing method in an attempt to obtain a PCTFE film that could not be conventionally formed into a film. In order to form a film that retains its physical properties, it is necessary to lower the decomposition initiation temperature. However, in this case, the melt viscosity was so high that it was almost impossible to extrude a single-layer film.
又、カーボンブラックを高充填した導電性材料のフィル
ムの製造方法に関するものとして特開昭６０−２０４０
７号公報があるが、カーボンブラック高充填材料は溶融
粘度が非常に高く、やはシ単層押出は不可能なものであ
る。そこで、この技術を応用すれば溶融粘度の非常に高
い状態のＰＣＴＦＥもフィルムとして押出成形できるの
ではないかと考え、種々研究を進めた結果、本発明を完
成するに至ったものである。Also, JP-A-60-2040 relates to a method for manufacturing a film of conductive material highly filled with carbon black.
No. 7, however, the carbon black highly filled material has a very high melt viscosity and cannot be extruded into a single layer. Therefore, we thought that by applying this technology, it would be possible to extrude PCTFE, which has a very high melt viscosity, into a film, and as a result of conducting various studies, we were able to complete the present invention.
本発明は、 ＰＣＴＦＥを中間層とし、その両外側Ｋ
ＰＣＴＦＥと熱融着せず且融点又は軟化点がＰＣＴＦＥ
よシ低い熱可塑性樹脂を用いて共押出し、その後両外側
の熱可塑性樹脂層を剥離することを特徴とするＰＣＴＦ
Ｅ単層フィルムの製造方法である。In the present invention, PCTFE is used as an intermediate layer, and both outer sides K
Does not thermally bond with PCTFE and has a melting point or softening point of PCTFE
PCTF characterized by coextrusion using a relatively low thermoplastic resin and then peeling off both outer thermoplastic resin layers.
E is a method for producing a single layer film.
本発明に用いられる熱可塑性樹脂は、−リエチレン、ポ
リプロピレンなどのオレフィン系樹脂、プリスチレン、
アクリ四ニトリル・ブタジェン・スチレン共重合体、メ
タクリル酸メチル樹脂、ダリカーボネート、層リアミド
樹脂などがある。Thermoplastic resins used in the present invention include -olefin resins such as lyethylene and polypropylene, prestyrene,
Examples include acryl-tetranitrile-butadiene-styrene copolymer, methyl methacrylate resin, dalicarbonate, and layer lyamide resin.
熱可塑性樹脂の中でもぼり塩化ビニル、−リビニルアル
コールなど高温で熱分解する熱可塑性樹脂は好ましくな
い。Among thermoplastic resins, thermoplastic resins that thermally decompose at high temperatures, such as vinyl chloride and -vinyl alcohol, are not preferred.
一般にオレフィン系樹脂が熱安定性や経済性からみて好
ましい。Generally, olefin resins are preferred in terms of thermal stability and economic efficiency.
一方、共押出は、マルチマニホールドダイやフィードブ
ロックが用いられるが、ＰＣＴＦＥの溶融粘度が非常に
高いため、マルチマニホールドダイを使用する方が成形
しやすい。On the other hand, in coextrusion, a multi-manifold die or a feed block is used, but since the melt viscosity of PCTFE is very high, it is easier to mold using a multi-manifold die.
本発明の製造方法によシ、従来フィルム化が不可能であ
ったＰＣＴＦＥの薄いフィルムも可能となり、防湿性が
要求されるエレクトロニクス分野から包装材分野に至る
広い範囲で使用され、品質の安定、向上に大いに貢献す
るものと考える。The production method of the present invention makes it possible to produce thin films of PCTFE, which were previously impossible to make into films, and can be used in a wide range of applications, from the electronics field to the packaging material field, which require moisture resistance, with stable quality and We believe that this will greatly contribute to improvement.
実施例
ＰＣＴＦＥ （ダイシンＭ ３００Ｐダイキン工業製）
を中間層とし、両外側に高密度Ｉリエ≠ルン（・・イゼ
ックス８２００ ＢＰ三井石油化学工業製）を用い、３
層共押出を下記の温度条件で行なった。Example PCTFE (Daishin M 300P manufactured by Daikin Industries)
is used as the middle layer, high-density Irie≠run (Izex 8200 BP manufactured by Mitsui Petrochemical Industries) is used on both outer sides, and 3
Layer coextrusion was carried out under the following temperature conditions.
（１）押出機 シリンダー アダプタ
ー〇ＩＣ２Ｃ３
（１）高密度＆ｌＪｃ？しｙ １８０ ２００ ２２
０ ２２０Ｃ０（ＩＩ）ＰＣＴＦＥ ２
４０ ２５０ ２６０ ２６０（Ｏｅ）ダイ
中央部 ２８００端部２８５０
共押出後、両外側の高密度ｉ６１Ｊ工チレン層を剥離し
て、１００μ厚□みのＰＣＴＦＥ単層フィルムを取出し
た。(1) Extruder cylinder adapter〇IC2C3 (1) High density & lJc? Shiy 180 200 22
0 220C0(II) PCTFE 2
40 250 260 260 (Oe) die
Center part 2800 End part 2850 After coextrusion, the high-density i61J polyethylene layers on both outer sides were peeled off to take out a PCTFE single layer film with a thickness of 100 μm.
比較例
実施例と同一のＰＣＴＦＥの単層押出を実施例と同一条
件で行なったが、ＰＣＴＦＨの溶融粘度が高過ぎて、フ
ィルム化出来ないため、やむを得ず下記の ５一
温度条件まで昇温して押出を試みた。Comparative Example Monolayer extrusion of the same PCTFE as in the example was carried out under the same conditions as in the example, but the melt viscosity of PCTFH was too high to form a film, so we had no choice but to raise the temperature to the following temperature condition. Tried extrusion.
押出機 シリンダー アダプター１Ｃ２Ｃ３
２８０３００３４０３４０υ
ダイ 中央部 ３４０（０
端部３５００
しかし、ＰＣＴＦＥの熱分解による溶融粘度の色激な低
下があシ、満足なフィルムは得られなかった。Extruder Cylinder Adapter 1C2C3 280300340340υ Die Center part 340 (0 End part 3500) However, there was a drastic decrease in melt viscosity due to thermal decomposition of PCTFE, and a satisfactory film could not be obtained.
あえて厚み３００μの一部分をサンプリングして実、施
例との物性比較を行なった。表からも明らかなように本
発明の方法では、物性も保持されたフィルムが得られる
。A part of the sample with a thickness of 300 μm was sampled and the physical properties were compared with those of Examples. As is clear from the table, the method of the present invention provides a film that maintains its physical properties.
Claims (2)
その両外側にポリクロロトリフルオロエチレンと熱融着
せず且融点又は軟化点がポリクロロトリフルオロエチレ
ンより低い熱可塑性樹脂を用いて共押出し、その後、両
外側の熱可塑性樹脂層を剥離することを特徴とするフィ
ルムの製造方法。(1) Polychlorotrifluoroethylene is used as an intermediate layer,
A thermoplastic resin that does not thermally fuse with polychlorotrifluoroethylene and has a lower melting point or softening point than polychlorotrifluoroethylene is used for coextrusion on both outsides, and then the thermoplastic resin layers on both outsides are peeled off. Characteristic film manufacturing method.
の範囲第（１）項記載のフィルムの製造方法。(2) The method for producing a film according to claim (1), wherein the thermoplastic resin is an olefin resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010997A JPS62169622A (en) | 1986-01-23 | 1986-01-23 | Fabrication of film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010997A JPS62169622A (en) | 1986-01-23 | 1986-01-23 | Fabrication of film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62169622A true JPS62169622A (en) | 1987-07-25 |
Family
ID=11765776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61010997A Pending JPS62169622A (en) | 1986-01-23 | 1986-01-23 | Fabrication of film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62169622A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01317735A (en) * | 1988-05-05 | 1989-12-22 | General Motors Corp <Gm> | Manufacture of odd-shaped band piece |
| FR2896445A1 (en) * | 2006-01-25 | 2007-07-27 | Arkema Sa | Multi-layer structure, useful to protect e.g. photovoltaic module, comprises e.g. polyvinylidene fluoride joined with layer of e.g. polyethylene and optionally layer of polyvinylidene fluoride, polymethyl methacrylate and a UV absorber |
| JP2015507551A (en) * | 2011-12-19 | 2015-03-12 | ナショナル リサーチ カウンシル オブ カナダ | Coextruded ultrathin film |
-
1986
- 1986-01-23 JP JP61010997A patent/JPS62169622A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01317735A (en) * | 1988-05-05 | 1989-12-22 | General Motors Corp <Gm> | Manufacture of odd-shaped band piece |
| FR2896445A1 (en) * | 2006-01-25 | 2007-07-27 | Arkema Sa | Multi-layer structure, useful to protect e.g. photovoltaic module, comprises e.g. polyvinylidene fluoride joined with layer of e.g. polyethylene and optionally layer of polyvinylidene fluoride, polymethyl methacrylate and a UV absorber |
| WO2007085769A3 (en) * | 2006-01-25 | 2007-09-13 | Arkema France | Flexible film based on fluorinated polymer |
| EP2412523A1 (en) * | 2006-01-25 | 2012-02-01 | Arkema France | Flexible film made of fluorinated polymer |
| JP2015507551A (en) * | 2011-12-19 | 2015-03-12 | ナショナル リサーチ カウンシル オブ カナダ | Coextruded ultrathin film |
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