JPH09278927A - Production of fluororesin film - Google Patents
Production of fluororesin filmInfo
- Publication number
- JPH09278927A JPH09278927A JP9420196A JP9420196A JPH09278927A JP H09278927 A JPH09278927 A JP H09278927A JP 9420196 A JP9420196 A JP 9420196A JP 9420196 A JP9420196 A JP 9420196A JP H09278927 A JPH09278927 A JP H09278927A
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- film
- organic solvent
- tetrafluoroethylene
- copolymer
- 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 16
- 239000010408 film Substances 0.000 claims abstract description 40
- 239000003960 organic solvent Substances 0.000 claims abstract description 29
- 229920001577 copolymer Polymers 0.000 claims abstract description 19
- 239000006185 dispersion Substances 0.000 claims abstract description 19
- 239000010409 thin film Substances 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 14
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims description 7
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 3
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 8
- 239000003989 dielectric material Substances 0.000 abstract description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229920006367 Neoflon Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は誘電体材料、気体透
過膜に好適なフッ素樹脂フィルムに関する。TECHNICAL FIELD The present invention relates to a fluororesin film suitable for a dielectric material and a gas permeable film.
【０００２】[0002]
【従来の技術】フッ素樹脂、例えばポリテトラフルオロ
エチレンのフィルムの製造は、他の合成樹脂のように溶
融押出等によって厚みの薄いフィルムを製造することは
できず、円筒状のブロックからの切削、または粉体を原
料としたペースト押出成形等の製造方法に限られてい
る。これらの方法によって製造可能なフィルムの厚さ
は、厚さが薄いものでも数１０μｍの厚さがあった。2. Description of the Related Art In the production of a film of a fluororesin, for example, polytetrafluoroethylene, it is not possible to produce a thin film by melt extrusion or the like like other synthetic resins, and cutting from a cylindrical block, Alternatively, the manufacturing method is limited to paste extrusion molding using powder as a raw material. The thickness of the film that can be produced by these methods was several tens of μm even if the film was thin.
【０００３】また、厚みの薄いフィルムの製造方法であ
るキャスト法をポリテトラフルオロエチレンフィルムの
製造に適用する場合には、平板上にポリテトラフルオロ
エチレンのディスパージョンなどを塗布した後に焼成に
よってフィルムを形成し、その後にフィルムを剥離する
ことによって形成できるが、キャストする平板の平滑性
が十分でないと焼成後のフィルムの剥離が困難であり、
また焼成時に発生するフッ素含有気体によって、製造装
置の金属材料が腐食を受ける等の問題があった。When the casting method, which is a method for producing a thin film, is applied to the production of a polytetrafluoroethylene film, the film is obtained by applying a dispersion of polytetrafluoroethylene on a flat plate and then firing the film. Although it can be formed by peeling the film after forming, it is difficult to peel the film after firing if the flatness of the flat plate to be cast is not sufficient,
Further, there is a problem that the metal material of the manufacturing apparatus is corroded by the fluorine-containing gas generated during firing.
【０００４】また、テトラフルオロエチレン−ヘキサフ
ルオロプロピレン共重合体（ＦＥＰ）、テトラフルオロ
エチレン−パーフルオロアルキルビニルエーテル共重合
体（ＰＦＡ）、テトラフルオロエチレン−ヘキサフルオ
ロプロピレン−パーフルオロアルキルビニルエーテル共
重合体（ＥＰＡ）、テトラフルオロエチレン−エチレン
共重合体（ＥＴＦＥ）等は溶融が可能であるので、炭化
水素系の合成樹脂と同様に溶融押出成形後、延伸等によ
って製造することができるが、溶融粘度が高くフィルム
の厚さは１０μｍ程度が限界であり、またキャスト法を
適用する場合には、平板の平滑性等についても同様な問
題があった。Further, tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl vinyl ether copolymer ( Since EPA), tetrafluoroethylene-ethylene copolymer (ETFE) and the like can be melted, they can be produced by melt extrusion molding and then stretching similarly to hydrocarbon-based synthetic resins, but have a melt viscosity of The film thickness is limited to about 10 μm, and when the casting method is applied, the flatness of the flat plate has the same problem.
【０００５】[0005]
【発明が解決しようとする課題】本発明は膜厚の薄いフ
ッ素樹脂フィルムの製造方法を提供することを課題とす
るものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a thin fluororesin film.
【０００６】[0006]
【課題を解決するための手段】本発明は、フッ素樹脂フ
ィルムの製造方法において、基板上に形成した有機溶剤
に可溶なフッ素樹脂の薄膜面上に、有機溶剤に不溶なフ
ッ素樹脂を含むディスパージョンを塗布乾燥の後に、デ
ィスパージョン中のフッ素樹脂の融点以上の温度に加熱
して溶融もしくは焼成し、次いで有機溶剤に可溶なフッ
素樹脂を溶解する有機溶剤中に基板とともに浸漬して、
溶剤に不要なフッ素樹脂フィルムを分離するフッ素樹脂
フィルムの製造方法である。DISCLOSURE OF THE INVENTION The present invention is a method for producing a fluororesin film, wherein a dispersion containing a fluororesin insoluble in an organic solvent is formed on a thin film surface of the fluororesin soluble in an organic solvent formed on a substrate. After coating and drying the John, it is heated to a temperature equal to or higher than the melting point of the fluororesin in the dispersion to be melted or fired, and then immersed with an organic solvent in which an organic solvent-soluble fluororesin is dissolved together with the substrate,
This is a method for producing a fluororesin film in which unnecessary fluororesin film is separated from a solvent.
【０００７】また、有機溶剤に可溶なフッ素樹脂がテト
ラフルオロエチレンとフッ化ビニリデンとの共重合体、
テトラフルオロエチレン、フッ化ビニリデンおよびヘキ
サフルオロプロピレンとの共重合体から選ばれるフッ素
樹脂であり、また有機溶剤に不要なフッ素樹脂が、ポリ
テトラフルオロエチレン、テトラフルオロエチレン−ヘ
キサフルオロプロピレン共重合体、テトラフルオロエチ
レン−パーフルオロアルキルビニルエーテル共重合体、
テトラフルオロエチレン−ヘキサフルオロプロピレン−
パーフルオロアルキルビニルエーテル共重合体、テトラ
フルオロエチレン−エチレン共重合体から選ばれる少な
くとも一種のフッ素樹脂である前記のフッ素樹脂フィル
ムの製造方法である。Further, a fluororesin soluble in an organic solvent is a copolymer of tetrafluoroethylene and vinylidene fluoride,
Tetrafluoroethylene, a fluororesin selected from copolymers with vinylidene fluoride and hexafluoropropylene, and a fluororesin unnecessary for an organic solvent is polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, Tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer,
Tetrafluoroethylene-hexafluoropropylene-
The method for producing a fluororesin film, which is at least one fluororesin selected from a perfluoroalkyl vinyl ether copolymer and a tetrafluoroethylene-ethylene copolymer.
【０００８】[0008]
【発明の実施の形態】本発明のフッ素樹脂フィルムの製
造方法は、金属、合成樹脂等からなる平滑な基板上に有
機溶剤に可溶なフッ素樹脂の薄膜を形成し、次いで、有
機溶剤に溶解しないフッ素樹脂を含有するディスパージ
ョン、例えば、ポリテトラフルオロエチレン（ＰＴＦ
Ｅ）、テトラフルオロエチレン−ヘキサフルオロプロピ
レン共重合体（ＦＥＰ）、テトラフルオロエチレン−パ
ーフルオロアルキルビニルエーテル共重合体（ＰＦ
Ａ）、テトラフルオロエチレン−ヘキサフルオロプロピ
レン−パーフルオロアルキルビニルエーテル共重合体
（ＥＰＡ）、テトラフルオロエチレン−エチレン共重合
体（ＥＴＦＥ）の水性ディスパージョンあるいはそれら
の混合ディスパージョンを塗布し、乾燥の後にそれぞれ
のディスパージョンに含まれている樹脂の融点以上の温
度で加熱することによって樹脂を溶融もしくは焼成一体
化させ、ついで基板ごと有機溶剤に浸漬すると有機溶剤
に可溶なフッ素樹脂が溶剤に溶解し、その結果膜厚の薄
いフッ素樹脂フィルムが得られるものである。BEST MODE FOR CARRYING OUT THE INVENTION The method for producing a fluororesin film of the present invention comprises forming a thin film of a fluororesin soluble in an organic solvent on a smooth substrate made of metal, synthetic resin or the like, and then dissolving it in an organic solvent. Dispersion containing non-fluorine resin such as polytetrafluoroethylene (PTF
E), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PF
A), an aqueous dispersion of tetrafluoroethylene-hexafluoropropylene-perfluoroalkylvinylether copolymer (EPA), tetrafluoroethylene-ethylene copolymer (ETFE) or a mixed dispersion thereof is applied, and after drying, The resin contained in each dispersion is heated at a temperature higher than the melting point of the resin to melt or sinter the resin, and when the substrate is immersed in an organic solvent, the fluororesin soluble in the organic solvent dissolves in the solvent. As a result, a thin fluororesin film can be obtained.
【０００９】本発明の方法において有機溶剤に可溶なフ
ッ素樹脂の薄膜を形成する基板は、金属板や金属箔また
はポリイミドフィルム、ＰＥＥＫフィルムなどを用いる
ことができる。これらの基板上には、有機溶剤に可溶な
フッ素樹脂の溶液を薄く塗布し、５０〜２００℃で加熱
し溶融させて基板上に薄膜を形成する。薄膜の乾燥後の
厚さは、０．０１〜１０μｍの範囲であることが好まし
く、０．１〜１μｍとすることがより好ましい。薄膜の
厚さが０．０１μｍ未満であると剥離が困難となり、１
０μｍ以上であると有機溶剤に可溶なフッ素樹脂の熱膨
張により、フッ素樹脂フィルムが変形し、薄膜の平面性
等に問題が生じるので好ましくない。In the method of the present invention, a metal plate, a metal foil, a polyimide film, a PEEK film or the like can be used as a substrate for forming a thin film of a fluororesin soluble in an organic solvent. On these substrates, a solution of a fluororesin soluble in an organic solvent is thinly applied, heated at 50 to 200 ° C. and melted to form a thin film on the substrates. The thickness of the thin film after drying is preferably in the range of 0.01 to 10 μm, more preferably 0.1 to 1 μm. If the thickness of the thin film is less than 0.01 μm, peeling becomes difficult and 1
When the thickness is 0 μm or more, the fluororesin film is deformed due to thermal expansion of the fluororesin soluble in an organic solvent, which causes a problem in flatness of the thin film, which is not preferable.
【００１０】有機溶剤に可溶なフッ素樹脂には、テトラ
フルオロエチレン−フッ化ビニリデンとの共重合体、テ
トラフルオロエチレン−フッ化ビニリデン−ヘキサフル
オロプロピレン共重合体等を用いることができる。具体
的にはテトラフルオロエチレン−フッ化ビニリデン共重
合体としてはネオフロンＶＤＦ（ダイキン製）、テトラ
フルオロエチレン−フッ化ビニリデン−ヘキサフルオロ
プロピレン共重合体としてはＴＨＶ（スリーエム製）を
挙げることができる。これらのフッ素樹脂を溶解する有
機溶剤にはＮ−メチルピロリドン、ジメチルホルムアミ
ド、アセトン等を挙げることができる。As the fluororesin soluble in an organic solvent, a tetrafluoroethylene-vinylidene fluoride copolymer, a tetrafluoroethylene-vinylidene fluoride-hexafluoropropylene copolymer, or the like can be used. Specifically, NEOFLON VDF (manufactured by Daikin) can be mentioned as the tetrafluoroethylene-vinylidene fluoride copolymer, and THV (manufactured by 3M) can be mentioned as the tetrafluoroethylene-vinylidene fluoride-hexafluoropropylene copolymer. Organic solvents that dissolve these fluororesins include N-methylpyrrolidone, dimethylformamide, acetone and the like.
【００１１】本発明の方法では、以上のようにして基板
上に形成された有機溶剤に可溶なフッ素樹脂の薄膜上
に、フッ素樹脂の水性ディスパージョンを塗布し、乾燥
後ディスパージョンに含まれているフッ素樹脂の融点以
上に加熱し、溶融もしくは焼成して、フッ素樹脂の層を
形成する。フッ素樹脂の層は、形成するフィルムの膜厚
に応じて、ディスパージョンの塗布、乾燥、加熱による
溶融もしくは焼成の工程を繰り返すことによって所定の
厚みとすることが好ましい。また、一度に大量のディス
パージョンを塗布すると形成されるフッ素樹脂フィルム
にクラック等が生じることがあるので好ましくない。In the method of the present invention, an aqueous dispersion of a fluororesin is applied onto a thin film of a fluororesin soluble in an organic solvent formed on a substrate as described above, and the aqueous dispersion of the fluororesin is contained in the dispersion after drying. The resin is heated to a temperature higher than the melting point of the fluororesin and melted or fired to form a fluororesin layer. The fluororesin layer preferably has a predetermined thickness depending on the thickness of the film to be formed, by repeating the steps of applying dispersion, drying, and melting or baking by heating. Further, when a large amount of dispersion is applied at one time, cracks may occur in the fluororesin film formed, which is not preferable.
【００１２】本発明において使用するフッ素樹脂のディ
スパージョンとしては、乳化重合によって得られる平均
粒子径が０．０１〜１０μｍの固形分重量が１〜６０重
量％、界面活性剤が０．１〜１０重量％である水性ディ
スパージョンが好ましい。The dispersion of the fluororesin used in the present invention is 1 to 60% by weight of solid content having an average particle size of 0.01 to 10 μm obtained by emulsion polymerization and 0.1 to 10% of surfactant. Aqueous dispersions that are wt% are preferred.
【００１３】有機溶剤に可溶なフッ素樹脂の薄膜上に形
成したフッ素樹脂の層は、フッ素樹脂と有機溶剤に可溶
なフッ素樹脂との表面張力が類似するとともに、両者の
親和性が良好であるので、加熱によるフッ素樹脂の溶融
あるいは焼成の際にもフッ素樹脂は凝集することなく、
フッ素樹脂のフィルムの形状を維持できる。形成された
フッ素樹脂層は、基材とともに有機溶剤に可溶なフッ素
樹脂を溶解する有機溶剤中に浸漬し、有機溶剤に可溶な
フッ素樹脂を完全に溶解させると、フッ素樹脂フィルム
を容易に剥離して取り出すことができる。The fluororesin layer formed on the organic solvent-soluble fluororesin thin film has a similar surface tension between the fluororesin and the organic solvent-soluble fluororesin, and has a good affinity for both. Therefore, the fluororesin does not aggregate even when it is melted or baked by heating.
The shape of the fluororesin film can be maintained. The formed fluororesin layer is easily immersed in an organic solvent that dissolves a fluororesin soluble in an organic solvent together with the base material, and completely dissolves the fluororesin soluble in an organic solvent to easily form a fluororesin film. It can be peeled off and taken out.
【００１４】本発明によって得られるフッ素樹脂フィル
ムは誘電体材料、気体透過膜などに使用することがで
き、また厚さの薄いものが容易に得られるので、各種の
分野における材料の機能の向上に寄与する。The fluororesin film obtained by the present invention can be used as a dielectric material, a gas permeable film and the like, and a thin film can be easily obtained, so that the function of the material in various fields can be improved. Contribute.
【００１５】[0015]
【実施例】以下に、実施例を示し、本発明を説明する。 実施例１ テトラフルオロエチレン−フッ化ビニリデン共重合樹脂
（ダイキン工業製 ネオフロンＶＤＦ）の２０重量％ア
セトン溶液をポリイミドフィルムに塗布し、乾燥後１３
０℃に加熱し、１μｍの層を形成した。形成したフッ素
樹脂の面上にポリテトラフルオロエチレンのディスパー
ジョン（三井デュポンフロロケミカル製テフロン３０
Ｊ）を塗布、乾燥し、３６０℃で焼成することにより、
厚さ３μｍの層を形成した。さらに、ディスパージョン
の塗布、乾燥、焼成を２回繰り返し、合計５μｍの層を
形成した。次いで、ポリイミドフィルムの基板ごとアセ
トン中に浸漬し、テトラフルオロエチレン−フッ化ビニ
リデン共重合樹脂を完全に溶解させて、厚さ５μｍのポ
リテトラフルオロエチレン製フィルムを得た。得られた
フィルムは、厚さが均一でクラックや穴は形成されてい
なかった。The present invention will be described below with reference to examples. Example 1 A 20% by weight acetone solution of a tetrafluoroethylene-vinylidene fluoride copolymer resin (Neotron VDF manufactured by Daikin Industries, Ltd.) was applied to a polyimide film and dried 13
Heat to 0 ° C. to form a 1 μm layer. Dispersion of polytetrafluoroethylene on the surface of the formed fluororesin (Teflon 30 manufactured by Mitsui DuPont Fluorochemicals)
J) is applied, dried, and baked at 360 ° C.
A 3 μm thick layer was formed. Further, dispersion coating, drying, and firing were repeated twice to form a layer having a total thickness of 5 μm. Then, the substrate of the polyimide film was immersed in acetone to completely dissolve the tetrafluoroethylene-vinylidene fluoride copolymer resin to obtain a polytetrafluoroethylene film having a thickness of 5 μm. The obtained film had a uniform thickness and had no cracks or holes.
【００１６】[0016]
【発明の効果】従来の切削、カレンダー等によっては、
製造が困難であったポリテトラフルオロエチレン等の厚
みが薄くて均質なフッ素樹脂フィルムを製造することが
できる。According to the conventional cutting, calendar, etc.,
It is possible to manufacture a uniform and thin fluororesin film such as polytetrafluoroethylene, which has been difficult to manufacture.
Claims (2)
て、基板上に形成した有機溶剤に可溶なフッ素樹脂の薄
膜面上に、有機溶剤に不溶なフッ素樹脂を含むディスパ
ージョンを塗布乾燥の後に、ディスパージョン中のフッ
素樹脂の融点以上の温度に加熱して溶融もしくは焼成
し、次いで有機溶剤に可溶なフッ素樹脂を溶解する有機
溶剤中に基板とともに浸漬して、溶剤に不要なフッ素樹
脂フィルムを分離することを特徴とするフッ素樹脂フィ
ルムの製造方法。1. A method for producing a fluororesin film, wherein a dispersion containing a fluororesin insoluble in an organic solvent is applied to a thin film surface of the fluororesin soluble in an organic solvent formed on a substrate, followed by drying, and then a dispersion. John is heated to a temperature above the melting point of the fluororesin to melt or bake, and then immersed in an organic solvent that dissolves the fluororesin soluble in an organic solvent together with the substrate to separate unnecessary fluororesin films in the solvent. A method for producing a fluororesin film, comprising:
ルオロエチレンとフッ化ビニリデンとの共重合体、テト
ラフルオロエチレン、フッ化ビニリデンおよびヘキサフ
ルオロプロピレンとの共重合体から選ばれるフッ素樹脂
であり、また有機溶剤に不要なフッ素樹脂が、ポリテト
ラフルオロエチレン、テトラフルオロエチレン−ヘキサ
フルオロプロピレン共重合体、テトラフルオロエチレン
−パーフルオロアルキルビニルエーテル共重合体、テト
ラフルオロエチレン−ヘキサフルオロプロピレン−パー
フルオロアルキルビニルエーテル共重合体、テトラフル
オロエチレン−エチレン共重合体から選ばれる少なくと
も一種のフッ素樹脂であることを特徴とする請求項１記
載のフッ素樹脂フィルムの製造方法。2. A fluororesin soluble in an organic solvent is a fluororesin selected from a copolymer of tetrafluoroethylene and vinylidene fluoride, and a copolymer of tetrafluoroethylene, vinylidene fluoride and hexafluoropropylene. Further, the fluororesin unnecessary for the organic solvent is polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl. The method for producing a fluororesin film according to claim 1, wherein the fluororesin film is at least one fluororesin selected from a vinyl ether copolymer and a tetrafluoroethylene-ethylene copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9420196A JPH09278927A (en) | 1996-04-16 | 1996-04-16 | Production of fluororesin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9420196A JPH09278927A (en) | 1996-04-16 | 1996-04-16 | Production of fluororesin film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09278927A true JPH09278927A (en) | 1997-10-28 |
Family
ID=14103693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9420196A Pending JPH09278927A (en) | 1996-04-16 | 1996-04-16 | Production of fluororesin film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09278927A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7375161B2 (en) | 2003-02-28 | 2008-05-20 | Soken Chemical & Engineering Co., Ltd. | Emulsion-type pressure sensitive adhesive and process for producing the same |
| US9421499B2 (en) | 2012-01-27 | 2016-08-23 | Sumitomo Electric Fine Polymer, Inc. | Microporous modified-polytetrafluoroethylene membrane, porous-modified-polytetrafluoroethylene-membrane composite and production process thereof, and separation membrane element |
| US9463420B2 (en) | 2006-08-09 | 2016-10-11 | Sumitomo Electric Fine Polymer, Inc. | Manufacturing methods for a porous fluororesin composite |
-
1996
- 1996-04-16 JP JP9420196A patent/JPH09278927A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7375161B2 (en) | 2003-02-28 | 2008-05-20 | Soken Chemical & Engineering Co., Ltd. | Emulsion-type pressure sensitive adhesive and process for producing the same |
| US7608656B2 (en) | 2003-02-28 | 2009-10-27 | Soken Chemical & Engineering Co., Ltd. | Emulsion pressure-sensitive adhesive and process for producing the same |
| US9463420B2 (en) | 2006-08-09 | 2016-10-11 | Sumitomo Electric Fine Polymer, Inc. | Manufacturing methods for a porous fluororesin composite |
| US9421499B2 (en) | 2012-01-27 | 2016-08-23 | Sumitomo Electric Fine Polymer, Inc. | Microporous modified-polytetrafluoroethylene membrane, porous-modified-polytetrafluoroethylene-membrane composite and production process thereof, and separation membrane element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4883716A (en) | Method for manufacture of cast fluoropolymer-containing films at high productivity | |
| CN1066669C (en) | Polyimide composite tube and method of mfg. same | |
| US7416761B2 (en) | Composite membrane and method for forming the same | |
| TWI778119B (en) | Method for preparing vent filter | |
| EP2841494A1 (en) | Polymer particle, aqueous dispersion including the same, and fluororesin coating composition using the same | |
| JP3103084B2 (en) | Manufacturing method for tubular objects | |
| JP6425736B2 (en) | Method of treating perfluoropolymer material | |
| JP2006164646A (en) | Fluorine resin-coated wire, coaxial cable using it and manufacturing method thereof | |
| JP5830782B2 (en) | Method for producing modified polytetrafluoroethylene microporous membrane and method for producing modified polytetrafluoroethylene porous resin membrane composite | |
| KR20010033429A (en) | Fluororesin Powder Liquid Dispersion Capable of Forming Thick Coatings | |
| JPH09278927A (en) | Production of fluororesin film | |
| JP6805064B2 (en) | Heat resistant mold release sheet | |
| US11339299B2 (en) | Method of making oil repellent sheet material and gas sensor | |
| WO2017017948A1 (en) | Ventilation filter endowed with oil repellency | |
| JP6936290B2 (en) | Heat-resistant mold release sheet and thermocompression bonding method | |
| JP3217452B2 (en) | Method for forming polybenzimidazole coating | |
| JP3914302B2 (en) | Method for producing porous film made of polytetrafluoroethylene | |
| JP4398043B2 (en) | Article having fluororesin coating film and method for producing the same | |
| JP4186447B2 (en) | Method for producing resin composition | |
| JP3811253B2 (en) | Polytetrafluoroethylene porous tube and method for producing the same | |
| JP2018192788A (en) | Film arranged at slide part such as shutter for camera | |
| JP7472191B2 (en) | Sliding film, focal plane shutter, camera, and method for manufacturing sliding film | |
| JP2008020627A (en) | Method for manufacturing endless belt | |
| JP5132153B2 (en) | Uniaxial stretching of fluoropolymer products | |
| JPH0325787B2 (en) |