JPH01297240A - Hygroscopic laminated film - Google Patents
Hygroscopic laminated filmInfo
- Publication number
- JPH01297240A JPH01297240A JP12708288A JP12708288A JPH01297240A JP H01297240 A JPH01297240 A JP H01297240A JP 12708288 A JP12708288 A JP 12708288A JP 12708288 A JP12708288 A JP 12708288A JP H01297240 A JPH01297240 A JP H01297240A
- Authority
- JP
- Japan
- Prior art keywords
- resin layer
- ethylene
- nylon
- film
- maleic anhydride
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 77
- 239000011347 resin Substances 0.000 claims abstract description 77
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229920002292 Nylon 6 Polymers 0.000 claims abstract description 18
- 229920002302 Nylon 6,6 Polymers 0.000 claims abstract description 13
- -1 acrylic ester Chemical class 0.000 claims abstract description 12
- 229920006226 ethylene-acrylic acid Polymers 0.000 claims description 18
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 17
- 239000005977 Ethylene Substances 0.000 abstract description 17
- 229920001577 copolymer Polymers 0.000 abstract description 12
- 238000010030 laminating Methods 0.000 abstract description 5
- 229920006284 nylon film Polymers 0.000 abstract description 4
- 229920001897 terpolymer Polymers 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 2
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 239000010408 film Substances 0.000 description 61
- 239000010410 layer Substances 0.000 description 59
- 230000001070 adhesive effect Effects 0.000 description 18
- 239000000853 adhesive Substances 0.000 description 17
- 238000001125 extrusion Methods 0.000 description 17
- 239000004677 Nylon Substances 0.000 description 11
- 229920001778 nylon Polymers 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000004687 Nylon copolymer Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000009820 dry lamination Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000013039 cover film Substances 0.000 description 4
- 229920001038 ethylene copolymer Polymers 0.000 description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000005396 acrylic acid ester group Chemical group 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 238000009823 thermal lamination Methods 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- HFGHRUCCKVYFKL-UHFFFAOYSA-N 4-ethoxy-2-piperazin-1-yl-7-pyridin-4-yl-5h-pyrimido[5,4-b]indole Chemical compound C1=C2NC=3C(OCC)=NC(N4CCNCC4)=NC=3C2=CC=C1C1=CC=NC=C1 HFGHRUCCKVYFKL-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000007718 adhesive strength test Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- XNMQEEKYCVKGBD-UHFFFAOYSA-N dimethylacetylene Natural products CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- AYOOGWWGECJQPI-NSHDSACASA-N n-[(1s)-1-(5-fluoropyrimidin-2-yl)ethyl]-3-(3-propan-2-yloxy-1h-pyrazol-5-yl)imidazo[4,5-b]pyridin-5-amine Chemical compound N1C(OC(C)C)=CC(N2C3=NC(N[C@@H](C)C=4N=CC(F)=CN=4)=CC=C3N=C2)=N1 AYOOGWWGECJQPI-NSHDSACASA-N 0.000 description 1
- XULSCZPZVQIMFM-IPZQJPLYSA-N odevixibat Chemical compound C12=CC(SC)=C(OCC(=O)N[C@@H](C(=O)N[C@@H](CC)C(O)=O)C=3C=CC(O)=CC=3)C=C2S(=O)(=O)NC(CCCC)(CCCC)CN1C1=CC=CC=C1 XULSCZPZVQIMFM-IPZQJPLYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は特にポリエステルフィルム及びアルミニウムシ
ートとの接着性に優れかつ吸湿性と透明性が良好な吸湿
性フィルム積層体に関するものである。特にエレクトロ
ルミネセンス素子（以下ＥＬ素子）の吸湿用カバーフィ
ルムとして効果的に利用し得るものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention particularly relates to a hygroscopic film laminate that has excellent adhesion to polyester films and aluminum sheets, and has good hygroscopicity and transparency. In particular, it can be effectively used as a moisture-absorbing cover film for electroluminescent devices (hereinafter referred to as EL devices).
（ロ）従来技術及びその問題点
ＥＬ素子とは蛍光体粉末を誘電体に分散して平行電極に
はさみ、電場を加えたときに発光するいわゆるエレクト
ロルミネセンス現象を利用した面発光体であり、面光源
として表示、照明、テレビ等への適用が可能である。こ
れらＥＬ素子の製法としてはガラスやプラスチックの様
な透明基盤上に透明電極を設け、その上にＺｎＳ等の誘
電率が大きく誘電損失の少ない合成樹脂と混合してスプ
レー法等により膜形成することによりＥＬ層を設け、更
に上部電極を設けた［粉末ＥＬ素子」、あるいは耐光性
のある透明プラスチックフィルム、−殻内にはポリエス
テルフィルムの片面に金属蒸着を施し加工した透明電極
を設け、更に下部絶縁層、ＥＬ層、上部絶縁層、及び上
部電極を順次蒸着法で形成した「薄膜ＥＬ素子ｊ等が知
られている。これらＥＬ素子の発光原理としては、例え
ば蛍光体粉末表面の導電性の部分と絶縁性の本体との界
面に生じた高電場で加速された電子が発光中心に衝突し
てそこでイオン化し後にそこで再結合するときに発光す
るものであると考えられている。(b) Prior art and its problems EL elements are surface light emitters that utilize the so-called electroluminescence phenomenon that emits light when an electric field is applied to phosphor powder dispersed in a dielectric material and sandwiched between parallel electrodes. It can be applied to displays, lighting, televisions, etc. as a surface light source. The manufacturing method for these EL elements is to provide a transparent electrode on a transparent substrate such as glass or plastic, and then mix it with a synthetic resin such as ZnS, which has a high dielectric constant and low dielectric loss, and forms a film by spraying or other methods. [Powder EL element] which has an EL layer and an upper electrode, or a light-resistant transparent plastic film; Thin film EL devices are known in which an insulating layer, an EL layer, an upper insulating layer, and an upper electrode are sequentially formed by vapor deposition.The light emitting principle of these EL devices is, for example, by It is thought that light is emitted when electrons accelerated by a high electric field generated at the interface between the part and the insulating body collide with the luminescent center, become ionized there, and then recombine there.
ところが、かようなＥＬ素子は湿気に対して鋭敏で、吸
湿による機能低下が甚だし。このようなＥＬ素子の機能
低下を防ぐために防湿性のあるフィルムでカバーし、四
方をヒートシールし密閉する。この場合、発光体ユニッ
トとカバーフィルムとの間に包含された空気中の水分や
、発光体ユニットの端部から吸湿した水分を除去するた
めに、発光体ユニットと防湿カバーフィルムとの間に吸
湿性のあるフィルムをＥＬ素子積層体の一部として介在
させる必要がある。即ち吸湿性のあるフィルムの片面に
接着剤を塗布して発光体ユニットの両面に接着せしめた
り、吸湿性フィルムの片面に熱接着フィルムを積層させ
ておき発光体ユニットの両面に熱接着せしめる方法があ
る。However, such EL elements are sensitive to moisture, and their functionality deteriorates significantly due to moisture absorption. In order to prevent such deterioration in the functionality of the EL element, it is covered with a moisture-proof film and sealed by heat sealing on all sides. In this case, in order to remove the moisture in the air contained between the light emitting unit and the cover film and the moisture absorbed from the end of the light emitting unit, there is a gap between the light emitting unit and the moisture-proof cover film. It is necessary to interpose a film with a certain property as a part of the EL element laminate. In other words, there are methods such as applying an adhesive to one side of a hygroscopic film and bonding it to both sides of the light emitting unit, or laminating a thermal adhesive film on one side of the hygroscopic film and then thermally bonding it to both sides of the light emitting unit. be.
後者の方法として、ナイロン６又は、ナイロン６６の吸
湿機能とナイロン共重合フィルムの熱接着性を利用した
積層体としては、時開６０−２８７９０２号で提案され
、ＥＬ素子のカバーフィルム用途として利用できうろこ
とが提案され、又ナイロン共重合体にエチレン−酢酸ビ
ニル共重合体を混和して接着機能を増した積層体として
本発明式らはすでに特願６２−１７０３７７号を提案し
ＥＬ素子の吸湿積層フィルムとして利用できることが示
されている。As for the latter method, a laminate that utilizes the moisture absorption function of nylon 6 or nylon 66 and the thermal adhesiveness of a nylon copolymer film was proposed in Jikai No. 60-287902, and can be used as a cover film for EL devices. Inventor et al. have already proposed Japanese Patent Application No. 62-170377 as a laminate with increased adhesive function by mixing ethylene-vinyl acetate copolymer with nylon copolymer. It has been shown that it can be used as a laminated film.
（ハ）発明が解決しようとする問題点
一方、近年においてＥＬ素子の生産性の向上が求められ
る様になり、吸湿性フィルムの熱接着の工程においても
より高速での接着性能が求められつつある。しかしなが
ら、現在使用されているナイロン６又はナイロン６６と
ナイロン共重合体を積層した吸湿性積層フィルムでは高
速でＥＬ素子に熱接着すれば気泡の噛み込みが発生する
。即ち、接着層であるナイロン共重合体は周知の様に急
速に加熱溶融すると気泡を噛み込み脱気しにくい性質が
ある。これは、一般にナイロン共重合体は溶融すると急
激な溶融粘度変化を起こし、溶融粘弾性が高いために噛
み込んだ気泡の除去が困難となる性質のためである。(c) Problems to be solved by the invention On the other hand, in recent years there has been a demand for improved productivity of EL elements, and higher speed adhesive performance is also required in the process of thermally bonding hygroscopic films. . However, in the currently used hygroscopic laminated films in which nylon 6 or nylon 66 and nylon copolymers are laminated, air bubbles will be trapped if the film is thermally bonded to an EL element at high speed. That is, as is well known, when the nylon copolymer used as the adhesive layer is heated and melted rapidly, it traps air bubbles and is difficult to degas. This is because nylon copolymers generally undergo rapid changes in melt viscosity when melted and have high melt viscoelasticity, making it difficult to remove trapped air bubbles.
本発明は以上の点に鑑みてなされたなされたものであり
、高速でＥＬ素子に熱接着可能な吸湿性フィルムを提供
することを目的とする。The present invention has been made in view of the above points, and an object of the present invention is to provide a hygroscopic film that can be thermally bonded to an EL element at high speed.
（ニ）問題点を解決するための手段及び作用本発明式ら
は上記の目的を達成すべく鋭意検討した結果、接着層に
エチレン−アクリル酸エステル無水マレイン酸変性物を
主としてなる樹脂を用いかつ、吸湿層にナイロン６又は
ナイロン６６からなる樹脂を用い積層一体化したフィル
ムが高速でＥＬ素子に熱接着行っても気泡の噛み込みが
発生せず、かつ優れた接着強度を示す事実を見いだしこ
の発明に到達した。(d) Means and action for solving the problems As a result of intensive studies to achieve the above object, the present inventors have found that the adhesive layer is made of a resin mainly composed of an ethylene-acrylic acid ester modified with maleic anhydride. discovered the fact that an integrated laminated film using a resin made of nylon 6 or nylon 66 for the moisture absorption layer does not cause air bubbles to be trapped even when it is thermally bonded to an EL element at high speed, and exhibits excellent adhesive strength. The invention has been achieved.
かくして、本発明によればナイロン６又は、ナイロン６
６からなる樹脂層（Ａ）とエチレン−アクリル酸エステ
ル無水マレイン酸変性物を主してなる樹脂層（Ｂ）とを
積層一体化したことを特徴とする吸湿性積層フィルムが
提供される。Thus, according to the invention, nylon 6 or nylon 6
A hygroscopic laminated film is provided, which is characterized in that a resin layer (A) consisting of 6 and a resin layer (B) mainly consisting of an ethylene-acrylic acid ester modified with maleic anhydride are laminated and integrated.
本発明に使用する樹脂層（Ａ）はナイロン６又は、ナイ
ロン６６で一般にナイロンフィルムに使用されているも
のであれば、いがなるものでも良い。The resin layer (A) used in the present invention may be nylon 6 or nylon 66, which is generally used in nylon films.
一方、樹脂層（Ｂ）はエチレン−アクリル酸エステル無
水マレイン酸変性物を主としてなる樹脂である。更に詳
しく言うならば、エチレン−アクリル酸エステル無水マ
レイン酸変性物単独からなる樹脂であるか、又はエチレ
ン−アクリル酸エステル無水マレイン酸変性物と他のエ
チレン系共重合体との混和物からなる樹脂であるか、又
はエチレン−アクリル酸エステル無水マレイン酸変性物
と他のエチレン−〇オレフィン共重合体との混和物から
なる樹脂である。樹脂層（Ｂ）において、エチレン−ア
クリル酸エステル無水マレイン酸変性物と混和されるエ
チレン系共重合体とは、エチレンと酸との共重合体及び
エチレンと酸エステルとの共重合体等、当該分野で公知
のエチレン系共重合体が使用できる。具体的な組成とし
ては、エチレンとアクリル酸との共重合体、エチレンと
メチルメタアクリル酸との共重合体、エチレンとアクリ
ル酸工チルどの共重合体、エチレンとメタアクリル酸メ
チルとの共重合体、などが挙げられる。又、同様に混和
されるエチレン−〇オレフィン共重合体の具体的な組成
としては、エチレンとペンテン、エチレンとプロピレン
、エチレンと１−ブテン、エチレンと１−ヘキセン、エ
チレンと２−ブテン等が挙げられる。樹脂層（Ｂ）にお
いて、エチレン−アクリル酸エステル無水マレイン酸変
性物と他のエチレン系共重合体又はエチレン−〇オレフ
ィン共重合体を混和スる場合、エチレン−アクリル酸エ
ステル無水マレイン酸変性物の含有率が少なくとも２０
ｗｔ％以上に成るようにする。エチレン−アクリル酸エ
ステル無水マレイン酸変性物の含有率が２０ｗｔ％０ｗ
ｔ％未満ＥＬ素子との接着強度が不足する。On the other hand, the resin layer (B) is a resin mainly composed of an ethylene-acrylic acid ester modified with maleic anhydride. More specifically, it is a resin consisting of an ethylene-acrylic ester modified with maleic anhydride alone, or a resin consisting of a mixture of an ethylene-acrylic ester modified with maleic anhydride and another ethylene copolymer. Or, it is a resin consisting of a mixture of an ethylene-acrylic acid ester modified with maleic anhydride and another ethylene-〇 olefin copolymer. In the resin layer (B), the ethylene copolymer mixed with the ethylene-acrylic acid ester maleic anhydride modified product includes a copolymer of ethylene and an acid, a copolymer of ethylene and an acid ester, etc. Ethylene-based copolymers known in the art can be used. Specific compositions include copolymers of ethylene and acrylic acid, copolymers of ethylene and methyl methacrylate, copolymers of ethylene and ethyl acrylate, and copolymers of ethylene and methyl methacrylate. Examples include merging. Further, specific compositions of the ethylene-olefin copolymer to be similarly mixed include ethylene and pentene, ethylene and propylene, ethylene and 1-butene, ethylene and 1-hexene, ethylene and 2-butene, etc. It will be done. In the resin layer (B), when mixing the ethylene-acrylic ester maleic anhydride modified product with another ethylene copolymer or ethylene-〇olefin copolymer, the ethylene-acrylic ester maleic anhydride modified product Contains at least 20
Make sure that it is at least wt%. Content of ethylene-acrylic acid ester maleic anhydride modified product is 20wt%0w
Less than t% The adhesive strength with the EL element is insufficient.
本発明において言うエチレン−アクリル酸エステル無水
マレイン酸変性物とは、エチレンとアクリル酸エステル
と無水マレイン酸との三元共重合体である。かかる三元
共重合体の製法へしては、通常の低密度ポリエチレン製
造設備と同様の高圧重合設備において、エチレンとアク
リル酸エステルコーモノマー及び無水マレイン酸コーモ
ノマーとを温度２００〜２５０°Ｃ１圧力１２００〜１
６００気圧において有機過酸化物等の触媒に接触するこ
とにより得られる。The ethylene-acrylic ester-maleic anhydride modified product referred to in the present invention is a terpolymer of ethylene, acrylic ester, and maleic anhydride. To produce such a terpolymer, ethylene, an acrylic acid ester comonomer, and a maleic anhydride comonomer are mixed at a temperature of 200 to 250° C. and a pressure of 1200° C. in high-pressure polymerization equipment similar to ordinary low-density polyethylene production equipment. ~1
It is obtained by contacting with a catalyst such as an organic peroxide at 600 atmospheres.
本発明において使用するエチレン−アクリル酸エステル
無水マレイン酸変性物の無水マレイン酸コーモノマー含
有率としては、２乃至３ｗｔ％が好適である。無水マレ
イン酸コーモノマー含有率が２ｗｔ％未満の場合はＥＬ
素子との接着強度が不足するし、３ｗｔ％を越える場合
は単層フィルム押出時のフィルム強度が不足する。The maleic anhydride comonomer content of the ethylene-acrylic ester modified with maleic anhydride used in the present invention is preferably 2 to 3 wt%. EL if the maleic anhydride comonomer content is less than 2wt%
The adhesive strength with the device is insufficient, and if it exceeds 3 wt%, the film strength when extruding a single layer film is insufficient.
又、本発明において使用するエチレン−アクリル酸エス
テル無水マレイン酸変性物のアクリル酸エステルとして
は、炭素数２から５の範囲内で任意のアルキル基が使用
できる。具体的にはアクリル酸メチルでもよいし、アク
リル酸エチルでもよいし、アクリル酸ブチルでもかまわ
ない。しかしながら、接着性の点でアクリル酸エチルが
最も好ましい。Further, as the acrylic ester of the ethylene-acrylic ester modified with maleic anhydride used in the present invention, any alkyl group having 2 to 5 carbon atoms can be used. Specifically, methyl acrylate, ethyl acrylate, or butyl acrylate may be used. However, ethyl acrylate is most preferred in terms of adhesive properties.
尚、本発明に於て言う無水マレイン酸含有率とは赤外分
光光度計によ’） １８６０ｃｍ−１付近の吸光度を測
定して得たものである。Incidentally, the maleic anhydride content referred to in the present invention is obtained by measuring the absorbance at around 1860 cm-1 using an infrared spectrophotometer.
本発明において用いられる樹脂層（Ａ）の膜厚としては
５０〜３００１１、好ましくは８０〜２５０１１が適当
である。樹脂層（Ａ）の膜厚が５０１１以下の場合は吸
湿性能に劣り、ａｏｏｐを越える場合はＥＬ素子の総膜
厚からの制限を受は製品化できない。又、樹脂層（Ｂ）
の膜厚としては１０〜５０１１、好ましくは２５〜４０
μが適当である。樹脂層（Ｂ）の膜厚が１０１１未満の
場合は、接着強度に不足し、膜厚が５０μを越える場合
は高速接着性能が低下する。The appropriate thickness of the resin layer (A) used in the present invention is 50 to 30,011 mm, preferably 80 to 25,011 mm. If the thickness of the resin layer (A) is less than 5011 mm, the moisture absorption performance is poor, and if it exceeds aoop, it cannot be commercialized due to restrictions from the total thickness of the EL element. Moreover, the resin layer (B)
The film thickness is 10-5011, preferably 25-40
μ is appropriate. When the thickness of the resin layer (B) is less than 1011, the adhesive strength is insufficient, and when the thickness exceeds 50μ, the high-speed adhesive performance is reduced.
かかる本発明の吸湿性積層フィルムは、上記樹脂層（Ａ
）と上記樹脂層（Ｂ）を公知の積層方法によって積層す
ることにより作製できる。例えば、いわゆるドライラミ
ネート法、熱ラミネート法、押出ラミネート法、及び共
押出法が挙げられ、この際種々の接着剤や接着フィルム
乃（用いられても良い。又、上記樹脂層（Ａ）及び上記
樹脂層（Ｂ）に本発明の目的を損なわない範囲内で種々
の滑剤、可塑剤を加えても良い。The hygroscopic laminated film of the present invention has the resin layer (A
) and the resin layer (B) by a known lamination method. For example, the so-called dry lamination method, thermal lamination method, extrusion lamination method, and coextrusion method may be mentioned, and in this case, various adhesives or adhesive films may be used. Various lubricants and plasticizers may be added to the resin layer (B) within a range that does not impair the purpose of the present invention.
この様にして得られる本発明の吸湿性積層フィルムは、
ナイロン６又はナイロン６６の優れた吸湿性と、エチレ
ン−アクリル酸エステル無水マレイン酸変性物の優れた
高速接着性能を兼備するものであり、ＥＬ素子の生産性
を向上させる吸湿性積層フィルムとして機能するもので
ある。The hygroscopic laminated film of the present invention obtained in this way is
It combines the excellent hygroscopic properties of nylon 6 or nylon 66 with the excellent high-speed adhesion performance of ethylene-acrylic acid ester maleic anhydride modified product, and functions as a hygroscopic laminated film that improves the productivity of EL devices. It is something.
（ホ）実施例 以下、本発明を実施例より説明する。(e) Examples The present invention will be explained below using examples.
実施例−１
樹脂層（Ａ）のナイロン６６からなる樹脂としてＵＢナ
イロン２０２０Ｂ（宇部興産製）を４０ｍｍ押出機でＴ
ダイ押出成形に付し厚す１５０μのフィルムを作った。Example-1 UB nylon 2020B (manufactured by Ube Industries) was used as a resin consisting of nylon 66 for the resin layer (A) and was extruded using a 40 mm extruder.
A film with a thickness of 150 μm was produced by die extrusion molding.
エチレン−アクリル酸エステル無水マレイン酸変性物を
主としてなる樹脂層（Ｂ）として無水マレイン酸含量２
ｗｔ％のエチレン、アクリル酸エステル無水マレイン酸
変性物を単独に用い同様に４０ｍｍ押出機でＴダイ押出
成形に付し厚さ３５１１のフィルムを作った。これらを
ウレタン系接着剤を使用しドライラミネート法により複
合し２層フィルムを作成した。総膜厚は１４０ｐであっ
た。（試料番号１）
実施例−２
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を４０ｍｍ押出機でＴダ
イ押出成形に付し厚さ１００ｐのフィルムを作った。エ
チレン−アクリル酸エステル無水マレイン酸変性物を主
としてなる樹脂層（Ｂ）として無水マレイン酸含量３ｗ
ｔ％のエチレン−アクリル酸エステル無水マレイン酸変
性物２５ｗｔ％とメチルメタクリレート含量２０ｗｔ％
のエチレン−メチルメタクリレート（アクリフトＷＨ４
０１住友化学製）７５ｗｔ％を混和したものを用い同様
に４０ｍｍ押出機でＴダイ押出成形に付し厚さ２５ｐの
フィルムを作った。これらを熱ラミネート法により複合
し２層フィルムを作成した。総膜厚は１２５ｙであった
。（試料番号２）実施例−３
樹脂層（Ａ）のナイロン６６からなる樹脂としてＵＢナ
イロン２０２０Ｂ（宇部興産製）を４０ｍｍ押出機でＴ
ダイ押出成形に付し厚さ８０μのフィルムを作った。エ
チレン−アクリル酸エステル無水マレイン酸変性物を主
としてなる樹脂層（Ｂ）として無水マレイン酸含量３ｗ
ｔ％のエチレン−アクリル酸エステル無水マレイン酸変
性物を単独に用い４０ｍｍ押出機でナイロンフィルムに
対して押出ラミネート法を行い２層フィルムを作成した
。総膜厚は１１０１１であった。（試料番号３）
実施例−４
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を用い又、エチレン−ア
クリル酸エステル無水マレイン酸変性物を主としてなる
樹脂層（Ｂ）として無水マレイン酸含量３ｗｔ％のエチ
レン−アクリル酸エステル無水マレイン酸変性物７５ｗ
ｔ％とエチレン−〇オレフィン共重合体（ナックフレッ
クスＤＦＤＡ−１２１０日本ユニカー製）２５ｗｔ％を
混和したものを用い共押出用ダイで樹脂層（Ａ）と樹脂
層（Ｂ）が積層された共押出多層フィルムとした。樹脂
層（Ａ）の膜厚は２０１１樹脂層（Ｂ）の膜厚は１２０
ｐとなった。（試料番号４）比較例−１
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を用い４０ｍｍ押出機で
Ｔダイ押出成形に付し厚さ８０１１のフィルムを作った
。樹脂層（Ｂ）にナイロン共重合樹脂（ナイロン６／６
６／１２；３０／３０／４０ｗｔ％）を用い４０ｍｍ押
出機でＴダイ押出成形に付し厚さ３５１１のフィルムを
作った。これらをウレタン系接着剤を使用しドライラミ
ネート法により複合し２層フィルムを作成した。総膜厚
は１２０ｐであった。（試料番号５）比較例−２
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を用い４０ｍｍ押出機で
Ｔダイ押出成形に付し厚さ８０１１のフィルムを作った
。樹脂層（Ｂ）にエチレンーアクレル酸エチル共重合体
樹脂（ＥＶＡＦＬＥＸ−ＥＥＡ Ａ−７０３三井・デュ
ポンポリケミカル製）を用い４０ｍｍ押出機でＴダイ押
出成形に付し厚さ３５１１のフィルムを作った。これら
をウレタン系接着剤を使用しドライラミネート法により
複合し２層フィルムを作成した。総膜厚は１２０ｐであ
った。（試料番号６）
比較例−３
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を用い４０ｍｍ押出機で
Ｔダイ押出成形に付し厚さ８０１１のフィルムを作った
。樹脂層（Ｂ）にエチレン−メタクリル酸共重合体をＺ
ｎイオンで架橋したアイオノマー樹脂（ハイミラン１７
０２三井・デュポンポリケミカル製）を用い４０ｍｍ押
出機でナイロンフィルムに対して押出ラミネート法を行
い２層フィルムを作成した。総膜厚は１２０ｐであった
。（試料番号７）比較例−４
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を用い又、エチレン−ア
クリル酸エステル無水マレイン酸変性物を主としてなる
樹脂層（Ｂ）として無水マレイン酸含ｉＬ３ｗｔ％のエ
チレン−アクリル酸エステル無水マレイン酸変性物を用
い共押出用ダイで樹脂層（Ａ）と樹脂層（Ｂ）が積層さ
れた共押出多層フィルムとした。樹脂層（Ａ）の膜厚は
５１１樹脂層（Ｂ）の膜厚は８０ｐとなった。（試料番
号８）
比較例−５
樹脂層（Ａ）のナイロン６からなる樹脂としてＵＢナイ
ロン１０１５Ｂ（宇部興産製）を用い又、エチレン−ア
クリル酸エステル無水マレイン酸変性物を主としてなる
樹脂層（Ｂ）として無水マレイン酸含１３ｗｔ％のエチ
レン−アクリル酸エステル無水マレイン酸変性物を用い
共押出用ダイで樹脂層（Ａ）と樹脂層（Ｂ）が積層され
た共押出多層フィルムとした。樹脂層（Ａ）の膜厚は６
０μ樹脂層（Ｂ）の膜厚は８０１１となった。（試料番
号９）
比較例−６
樹脂層（Ａ）のナイロン６６からなる樹脂としてＵＢナ
イロン２０２０Ｂ（宇部興産製）を４０ｍｍ押出機でＴ
ダイ押出成形に付し厚さ８０９のフィルムを作った。エ
チレン−アクリル酸エステル無水マレイン酸変性物を主
としてなる樹脂層（Ｂ）として無水マレイン酸含量０．
５ｗｔ％のエチレン−アクリル酸エステル無水マレイン
酸変性物を単独に用い同様に４０ｍｍ押出機でＴダイ押
出成形に付し厚さ３５μのフィルムを作った。これらを
ウレタン系接着剤を使用しドライラミネート法により複
合し２層フィルムを作成した。総膜厚は１４０ｐであっ
た。（試料番号１０）
比較例−７
樹脂層（Ａ）のナイロン６６からなる樹脂としてＵＢナ
イロン２０２０Ｂ（宇部興産製）を４０ｍｍ押出機でＴ
ダイ押出成形に付し厚さ８０ｐのフィルムを作った。エ
チレン−アクリル酸エステル無水マレイン酸変性物を主
としてなる樹脂層（Ｂ）として無水マレイン酸含量４ｗ
ｔ％のエチレン−アクリル酸エステル無水マレイン酸変
性物を単独に用い同様に４０ｍｍ押出機でＴダイ押出成
形に付し厚さ３５μのフィルムを作った。しかしながら
エチレン−アクリル酸エステル無水マレイン酸変性物の
フィルム同士が接着するいわゆるブロッキング現象が生
じ巻戻しが不可能であった。（試料番号１１）以上の様
にして得られた実施例（試料番号１から４）および比較
例（試料番号５から１０）に対して接着強度を測定する
と共に熱接着による気泡の噛み込み性及び成形性を評価
した。Maleic anhydride content: 2 as resin layer (B) mainly composed of ethylene-acrylic acid ester modified with maleic anhydride
A film having a thickness of 3,511 mm was produced by using wt% of ethylene and an acrylic acid ester modified with maleic anhydride alone and subjected to T-die extrusion molding using a 40 mm extruder. These were combined by dry lamination using a urethane adhesive to create a two-layer film. The total film thickness was 140p. (Sample No. 1) Example 2 UB Nylon 1015B (manufactured by Ube Industries) was subjected to T-die extrusion molding using a 40 mm extruder as a resin consisting of nylon 6 for the resin layer (A) to produce a film with a thickness of 100p. Maleic anhydride content 3w as resin layer (B) mainly composed of ethylene-acrylic acid ester maleic anhydride modified product
t% of ethylene-acrylic acid ester modified with maleic anhydride 25wt% and methyl methacrylate content of 20wt%
of ethylene-methyl methacrylate (Acrift WH4
01 manufactured by Sumitomo Chemical Co., Ltd.) was mixed with 75 wt% and subjected to T-die extrusion molding using a 40 mm extruder to produce a film with a thickness of 25 p. These were composited by thermal lamination to create a two-layer film. The total film thickness was 125y. (Sample No. 2) Example-3 UB nylon 2020B (manufactured by Ube Industries) was used as a resin consisting of nylon 66 for the resin layer (A) using a 40 mm extruder.
A film with a thickness of 80 μm was produced by die extrusion molding. Maleic anhydride content 3w as resin layer (B) mainly composed of ethylene-acrylic acid ester maleic anhydride modified product
A two-layer film was prepared by extrusion laminating a nylon film using a 40 mm extruder using t% of ethylene-acrylic acid ester modified with maleic anhydride alone. The total film thickness was 11,011 mm. (Sample No. 3) Example 4 UB nylon 1015B (manufactured by Ube Industries) was used as the resin made of nylon 6 for the resin layer (A), and the resin layer (B ) as an ethylene-acrylic ester maleic anhydride modified product with a maleic anhydride content of 3 wt% 75w
Coextrusion in which resin layer (A) and resin layer (B) were laminated using a coextrusion die using a mixture of t% and 25wt% of ethylene-〇olefin copolymer (Nacflex DFDA-1210 manufactured by Nippon Unicar). It was made into a multilayer film. The thickness of the resin layer (A) is 2011, and the thickness of the resin layer (B) is 120.
It became p. (Sample No. 4) Comparative Example-1 UB Nylon 1015B (manufactured by Ube Industries) was used as the resin consisting of nylon 6 for the resin layer (A), and was subjected to T-die extrusion molding with a 40 mm extruder to produce a film with a thickness of 8011 mm. . The resin layer (B) is made of nylon copolymer resin (nylon 6/6
6/12; 30/30/40 wt%) was subjected to T-die extrusion molding using a 40 mm extruder to produce a film with a thickness of 3511 mm. These were combined by dry lamination using a urethane adhesive to create a two-layer film. The total film thickness was 120p. (Sample No. 5) Comparative Example-2 UB Nylon 1015B (manufactured by Ube Industries) was used as the resin consisting of nylon 6 for the resin layer (A) and was subjected to T-die extrusion molding with a 40 mm extruder to produce a film with a thickness of 8011 mm. . Ethylene-ethyl acrylate copolymer resin (EVAFLEX-EEA A-703 manufactured by Mitsui DuPont Polychemicals) was used for the resin layer (B) and subjected to T-die extrusion molding with a 40 mm extruder to produce a film with a thickness of 3511 mm. Ta. These were combined by dry lamination using a urethane adhesive to create a two-layer film. The total film thickness was 120p. (Sample No. 6) Comparative Example-3 UB Nylon 1015B (manufactured by Ube Industries) was used as the resin consisting of nylon 6 for the resin layer (A) and was subjected to T-die extrusion molding with a 40 mm extruder to produce a film with a thickness of 8011 mm. . Adding ethylene-methacrylic acid copolymer to the resin layer (B)
Ionomer resin crosslinked with n ions (Himilan 17
A two-layer film was prepared by extrusion laminating the nylon film using a 40 mm extruder (manufactured by Mitsui DuPont Polychemical Co., Ltd.). The total film thickness was 120p. (Sample No. 7) Comparative Example-4 UB Nylon 1015B (manufactured by Ube Industries) was used as the resin consisting of nylon 6 in the resin layer (A), and the resin layer (B ) was used to prepare a coextruded multilayer film in which a resin layer (A) and a resin layer (B) were laminated using a coextrusion die using an ethylene-acrylic acid ester modified with maleic anhydride containing maleic anhydride and having an iL of 3 wt %. The thickness of the resin layer (A) was 511p, and the thickness of the resin layer (B) was 80p. (Sample No. 8) Comparative Example-5 UB Nylon 1015B (manufactured by Ube Industries) was used as the resin consisting of nylon 6 in the resin layer (A), and the resin layer (B ) was used to prepare a coextruded multilayer film in which a resin layer (A) and a resin layer (B) were laminated using a coextrusion die using an ethylene-acrylic ester modified with maleic anhydride containing 13 wt % maleic anhydride. The thickness of the resin layer (A) is 6
The film thickness of the 0 μ resin layer (B) was 8011 mm. (Sample No. 9) Comparative Example-6 UB nylon 2020B (manufactured by Ube Industries) was used as a resin made of nylon 66 for the resin layer (A) and was
A film having a thickness of 809 mm was produced by die extrusion. The resin layer (B) mainly composed of an ethylene-acrylic ester modified with maleic anhydride has a maleic anhydride content of 0.
Using 5 wt % of ethylene-acrylic acid ester modified with maleic anhydride alone, a film having a thickness of 35 μm was produced by extrusion molding with a T-die using a 40 mm extruder. These were combined by dry lamination using a urethane adhesive to create a two-layer film. The total film thickness was 140p. (Sample No. 10) Comparative Example-7 UB nylon 2020B (manufactured by Ube Industries) was used as a resin made of nylon 66 for the resin layer (A) using a 40 mm extruder.
A film with a thickness of 80p was produced by die extrusion molding. The maleic anhydride content is 4w as the resin layer (B) mainly composed of an ethylene-acrylic acid ester modified with maleic anhydride.
Using t% of ethylene-acrylic ester modified with maleic anhydride alone, a film having a thickness of 35 μm was produced by extrusion molding with a T-die using a 40 mm extruder. However, a so-called blocking phenomenon occurred in which the films of the ethylene-acrylic acid ester-maleic anhydride modified product adhered to each other, making it impossible to unwind the film. (Sample No. 11) The adhesive strength of the Examples (Sample Nos. 1 to 4) and Comparative Examples (Sample Nos. 5 to 10) obtained as above was measured, and the air bubble entrapment property and The moldability was evaluated.
接着強度試験はＥＬ素子の表面素材であるポリエステル
フィルムとＥＬ素子の背面電極であるアルミニウム板に
対して行った。接着条件は、両面加熱ヒニタープレスを
用い温度１７０’Ｃ１圧カ０．３Ｋｇ／ｃｍ２、時間１
０秒で行い、引張試験機を用いＪＩＳ−に６８５４に準
拠して、剥離速度５０ｍｍ／ｍｉｎで剥離強度を測定し
接着強度とした。The adhesive strength test was conducted on a polyester film, which is the surface material of the EL element, and an aluminum plate, which is the back electrode of the EL element. The bonding conditions were: temperature 170'C, pressure 0.3 Kg/cm2, time 1 using a double-sided heated Hinitar press.
The adhesive strength was measured using a tensile tester at a peeling rate of 50 mm/min in accordance with JIS-6854.
熱接着による気泡の噛み込み性については、実際のＥＬ
素子製造装置を用いて行い従来の一般的な生産速度であ
る０、１ｍ／ｍｉｎと高速生産速度である１、５ｍ／ｍ
ｉｎの速度で熱接着を行いロール２００ｍ当たりの気泡
発生の度合いを評価した。Regarding the bubble entrapment property due to thermal bonding, the actual EL
Performed using device manufacturing equipment at conventional general production speeds of 0.1 m/min and high-speed production speeds of 1.5 m/m.
Thermal bonding was performed at a speed of 1.5 in. and the degree of bubble generation per 200 m of roll was evaluated.
成形性は製膜加工時に特に問題となるものについて評価
した。表１に上記試験及び評価の結果を示す。Formability was evaluated based on those that were particularly problematic during film forming processing. Table 1 shows the results of the above tests and evaluations.
［以下余白１
（注１）引っ張り試験機による実測値
（注２）フィルム２００ｍあたりに
気泡が皆無のもの◎
２〜３のもの０
１０以上あるもの△
実用不可のもの×
（注３）通常のフィルム成形が可能なもの○通常のフィ
ルム成形が不可能なもの×
表１の試料番号１から４に示されたように、本発明の吸
湿性積層フィルムはアルミニウムはもとよりポリエステ
ルに対しても優れた接着性能を示す。又高速で接着して
も気泡の噛み込みは皆無で成形性も良好である。表１に
おける試料番号５のように従来主に使用されてきたナイ
ロン共重合樹脂は低速の時は問題がないが高速接着時は
気泡を噛み込み実用にならない。又、試料番号６及び７
のように無水マレイン酸を共重合成分に含まないエチレ
ン系共重合体は接着強度に問題がある。[Margin below 1 (Note 1) Actual value measured by a tensile tester (Note 2) No bubbles per 200 m of film ◎ 2 to 3 0 10 or more △ Impractical × (Note 3) Normal Film-formable films ○ Ordinary film-formable films × As shown in sample numbers 1 to 4 in Table 1, the hygroscopic laminated film of the present invention was excellent not only for aluminum but also for polyester. Indicates adhesive performance. Furthermore, even when bonded at high speed, there is no entrapment of air bubbles and the moldability is good. The nylon copolymer resin that has been mainly used in the past, such as Sample No. 5 in Table 1, has no problems when bonding at low speeds, but when bonding at high speeds, it traps air bubbles and is not practical. Also, sample numbers 6 and 7
Ethylene-based copolymers that do not contain maleic anhydride as a copolymerization component, such as ethylene copolymers, have problems in adhesive strength.
（へ）発明の効果
本発明の吸湿性積層フィルムによればポリエステル及び
アルミニウムに高速で熱接着することが可能で、特にＥ
Ｌ素子の捕水性フィルムとして好適である。(f) Effects of the invention According to the hygroscopic laminated film of the invention, it is possible to thermally bond polyester and aluminum at high speed, and in particular
It is suitable as a water-absorbing film for L elements.
Claims (3)
Ａ）とエチレン−アクリル酸エステル無水マレイン酸変
性物を主してなる樹脂層（Ｂ）とを積層一体化したこと
を特徴とする吸湿性積層フィルム。(1) Resin layer made of nylon 6 or nylon 66 (
A hygroscopic laminated film characterized in that A) and a resin layer (B) mainly composed of an ethylene-acrylic acid ester modified with maleic anhydride are laminated and integrated.
テル無水マレイン酸変性物の無水マレイン酸の含量が２
乃至３ｗｔ％である特許請求の範囲第１項に記載の吸湿
性積層フィルム。(2) In the resin layer (B), the maleic anhydride content of the ethylene-acrylic ester maleic anhydride modified product is 2
The hygroscopic laminated film according to claim 1, which has a content of 3 to 3 wt%.
性物を主してなる樹脂層（Ｂ）の膜厚が１０乃至５０μ
である特許請求の範囲第１項に記載の吸湿性積層フィル
ム。(3) The thickness of the resin layer (B) mainly composed of ethylene-acrylic acid ester maleic anhydride modified product is 10 to 50μ
The hygroscopic laminated film according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12708288A JPH01297240A (en) | 1988-05-26 | 1988-05-26 | Hygroscopic laminated film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12708288A JPH01297240A (en) | 1988-05-26 | 1988-05-26 | Hygroscopic laminated film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01297240A true JPH01297240A (en) | 1989-11-30 |
Family
ID=14951130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12708288A Pending JPH01297240A (en) | 1988-05-26 | 1988-05-26 | Hygroscopic laminated film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01297240A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535000A (en) * | 1978-09-05 | 1980-03-11 | Allied Chem | Improved polyamide laminated article |
| JPS5571556A (en) * | 1978-11-22 | 1980-05-29 | Nippon Petrochemicals Co Ltd | Multilayer structure |
| JPS5975914A (en) * | 1982-10-26 | 1984-04-28 | Showa Denko Kk | Adhesive resin and its laminate |
| JPS5951497B2 (en) * | 1980-04-21 | 1984-12-14 | 三菱マテリアル株式会社 | Method for producing ultrafine iron oxide powder |
| JPS60221987A (en) * | 1984-04-18 | 1985-11-06 | 関西日本電気株式会社 | Method of producing electric field light emitting lamp |
| JPS6245438U (en) * | 1985-09-06 | 1987-03-19 |
-
1988
- 1988-05-26 JP JP12708288A patent/JPH01297240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535000A (en) * | 1978-09-05 | 1980-03-11 | Allied Chem | Improved polyamide laminated article |
| JPS5571556A (en) * | 1978-11-22 | 1980-05-29 | Nippon Petrochemicals Co Ltd | Multilayer structure |
| JPS5951497B2 (en) * | 1980-04-21 | 1984-12-14 | 三菱マテリアル株式会社 | Method for producing ultrafine iron oxide powder |
| JPS5975914A (en) * | 1982-10-26 | 1984-04-28 | Showa Denko Kk | Adhesive resin and its laminate |
| JPS60221987A (en) * | 1984-04-18 | 1985-11-06 | 関西日本電気株式会社 | Method of producing electric field light emitting lamp |
| JPS6245438U (en) * | 1985-09-06 | 1987-03-19 |
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