JPS64208B2 - - Google Patents
Info
- Publication number
- JPS64208B2 JPS64208B2 JP57123777A JP12377782A JPS64208B2 JP S64208 B2 JPS64208 B2 JP S64208B2 JP 57123777 A JP57123777 A JP 57123777A JP 12377782 A JP12377782 A JP 12377782A JP S64208 B2 JPS64208 B2 JP S64208B2
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- base material
- heat
- boiling point
- resin
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 38
- 239000002904 solvent Substances 0.000 claims description 30
- 229920002312 polyamide-imide Polymers 0.000 claims description 27
- 239000011347 resin Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 238000009835 boiling Methods 0.000 claims description 14
- 229920006267 polyester film Polymers 0.000 claims description 11
- 239000002966 varnish Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 8
- 239000010425 asbestos Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229910052895 riebeckite Inorganic materials 0.000 claims description 7
- 239000002759 woven fabric Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004962 Polyamide-imide Substances 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 description 9
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000007602 hot air drying Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229920002799 BoPET Polymers 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000013557 residual solvent Substances 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012772 electrical insulation material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000007858 starting material Substances 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
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
本発明は耐熱基材入りポリアミドイミド樹脂
（以下PAIという）長尺シートの製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a long sheet of polyamide-imide resin containing a heat-resistant base material (hereinafter referred to as PAI).
PAIは、耐熱性、耐薬品性、高温時における機
械的性質、電気的性質にすぐれ、含窒素高極性型
合成樹脂としてポリイミド樹脂とともに近年とく
に注目されている。 PAI has excellent heat resistance, chemical resistance, mechanical properties at high temperatures, and electrical properties, and has attracted particular attention in recent years as a nitrogen-containing highly polar synthetic resin, along with polyimide resin.
PAIはまた、ポリイミド樹脂と異なつて可撓性
にすぐれているのでコールドパンチング性がよ
く、熱、電気の絶縁材料、プリント基盤あるいは
摺動材料としてもきわめて有望である。 PAI also has excellent flexibility, unlike polyimide resin, and has good cold-punching properties, making it extremely promising as a thermal and electrical insulation material, a printed substrate, and a sliding material.
しかし、PAIはこのようなすぐれた特性を有し
ている反面、そのワニスを出発材料として用いる
場合、
(イ) 高沸点極性溶剤（Ｎ―メチル―２ピロリド
ン、沸点204℃）を使用しているので、溶剤除
去の困難さがあり、また溶剤残留量が成形性を
大きく左右して成形条件の設定をいちじるしく
困難なものとしていること、
(ロ) 金型への固着があり、離型が困難であるこ
と、
など、きわめて成形性に問題があり、満足のゆく
成形物を得がたいというのが実情である。 However, while PAI has such excellent properties, when using the varnish as a starting material, (a) a high-boiling polar solvent (N-methyl-2-pyrrolidone, boiling point 204°C) is used; Therefore, it is difficult to remove the solvent, and the amount of residual solvent greatly affects moldability, making it extremely difficult to set molding conditions; (b) It sticks to the mold, making it difficult to release from the mold. The reality is that there are extremely problems with moldability, such as , and it is difficult to obtain a satisfactory molded product.
したがつて、とくにPAIからなる長尺シートに
ついては、その製造方法すら確立されていないと
いうのが実情である。 Therefore, the reality is that even a manufacturing method has not been established, especially for long sheets made of PAI.
本発明者らは、種々実験を繰返し上述した問題
を解決するとともに、材料歩留りの向上、連続供
給による加工性がよいなど生産性向上の観点で有
利な形態であるPAI長尺シートを効率よく製造す
ることに成功し、本発明をなすに至つたものであ
る。 The present inventors solved the above-mentioned problems by repeating various experiments, and efficiently manufactured PAI long sheets, which are advantageous in terms of productivity improvement, such as improved material yield and good workability due to continuous feeding. They succeeded in doing so, and the present invention was created.
すなわち、
(イ) ガラス繊維、アスベスト繊維、炭素繊維、そ
してチタン酸カリ繊維のいずれか一種または二
種以上からなる織布、不織布などの帯状耐熱基
材に、PAIワニスを含浸塗布し、これを溶剤の
沸点以下の温度に加温して相当量の溶剤を除去
して指触乾燥状態の樹脂加工基材を得る工程、
(ロ) 得られた樹脂加工基材をポリエステルフイル
ムと重ね合わせて、それぞれに張力を与えなが
ら溶剤の沸点以下の温度に加温して芯金上に加
圧捲回して巻き重ねる一次成形工程、
(ハ) 該一次成形物からポリエステルフイルムを剥
ぎ取り、ついで該帯状一次成形物を通気性を有
する耐熱多孔質シートと重ね合わせて芯金上に
捲回する工程、
(ニ) ついで、該捲回物を溶剤の沸点以上の温度に
まで徐々に昇温させて溶剤を除去するとともに
樹脂の硬化を進める工程、
(ホ) 硬化完了後、該耐熱多孔質シートを除去する
工程、
以上、各工程からなることを特徴とした耐熱基
材入りPAI長尺シートの製造方法を提供するもの
である。 That is, (a) PAI varnish is impregnated and coated on a band-shaped heat-resistant base material such as woven fabric or non-woven fabric made of one or more of glass fiber, asbestos fiber, carbon fiber, and potassium titanate fiber, and then coated with PAI varnish. a step of heating to a temperature below the boiling point of the solvent and removing a considerable amount of the solvent to obtain a resin-processed base material that is dry to the touch; (b) superimposing the obtained resin-processed base material on a polyester film; A primary forming process in which the polyester film is heated to a temperature below the boiling point of the solvent while applying tension to each, and is wound under pressure onto a core metal. A process of overlapping the molded product with a heat-resistant porous sheet having air permeability and winding it on a core metal; (d) Then, the temperature of the wound product is gradually raised to a temperature higher than the boiling point of the solvent to remove the solvent. (e) removing the heat-resistant porous sheet after curing is completed; and (e) removing the heat-resistant porous sheet after curing is completed. This is what we provide.
本発明に使用されるPAIは、たとえば日本ロー
デイア社の「ローデフタール」、米国アモコ社の
「AIシリーズPAI」、大日精化社の「AI630、
AI602」、日立化成社の「HI400、HI404」など、
おおむねPAI固形分が30〜40重量％（以下いずれ
も重量％）のＮ―メチル―２―ピロリドン（沸点
204℃）を溶剤としたワニスを好適なものとして
例示することができる。 The PAI used in the present invention is, for example, "Rhodefthal" manufactured by Nippon Rhodia, "AI series PAI" manufactured by Amoco, Inc., "AI630" manufactured by Dainichiseika, etc.
AI602", Hitachi Chemical's "HI400, HI404", etc.
N-methyl-2-pyrrolidone (boiling point
A suitable example is a varnish using a temperature (204°C) as a solvent.
耐熱基材は、ガラス繊維、アスベスト繊維、炭
素繊維、チタン酸カリ繊維からなる織布または不
織布などで、おおむね10〜102ミクロンオーダー
のものが用いられる。 The heat-resistant base material is a woven fabric or non-woven fabric made of glass fiber, asbestos fiber, carbon fiber, potassium titanate fiber, etc., and has a size of about 10 to 10 2 microns.
一次成形に用いられるポリエステルフイルム
は、数10ミクロンないし100数10ミクロン程度の
厚さを有するポリエチレンテレフタレート（以下
PETという）フイルムが好ましい。 The polyester film used for primary forming is polyethylene terephthalate (hereinafter referred to as polyethylene terephthalate), which has a thickness of several tens of microns to several hundred microns.
(PET) film is preferred.
該フイルムは、PAI加工基材と重ね合わせら
れ、張力と加熱を受けて芯金に捲回されるので、
あまり薄いと取扱い上支障をきたし、また厚過ぎ
ても巻き径が大きくなつたりして取扱いにくい。 The film is overlapped with the PAI processed base material and wound around the core metal under tension and heat.
If it is too thin, it will be difficult to handle, and if it is too thick, the diameter of the roll will become large, making it difficult to handle.
該フイルムの役割は、捲回層間のPAIの溶着を
防ぐとともに、PAI表面の荒れを防ぎ光沢のある
平滑面とする。 The role of this film is to prevent the PAI from adhering between the wound layers, and also to prevent the PAI surface from becoming rough and to provide a glossy, smooth surface.
耐熱多孔質シートは、PAIの成形温度（最高
300℃）で変質したり、いちじるしい熱収縮や熱
膨脹をすることのない材料であり、成形時にガス
となつて発生する残存溶剤を透過して系外に導
き、溶剤の除去が円滑に行なわれる材料であるこ
とが重要である。 The heat-resistant porous sheet can withstand PAI's forming temperature (maximum
A material that does not change in quality or undergo significant thermal contraction or thermal expansion at temperatures (300℃), and allows residual solvent generated as gas during molding to pass through and lead out of the system, allowing for smooth removal of the solvent. It is important that
本発明者らは、比較的表面平滑性のよいアスベ
ストペーパー、ガラスペーパーなどを用いて好結
果を得ているが、このほかこれらの織布または炭
素繊維、チタン酸カリ繊維からなる不織布、織布
なども使用することができる。 The present inventors have obtained good results using asbestos paper, glass paper, etc., which have relatively good surface smoothness. etc. can also be used.
以下、本発明の製造方法を図について説明す
る。 Hereinafter, the manufacturing method of the present invention will be explained with reference to the drawings.
第１図は、樹脂加工基材を得る装置の模型図
で、１は耐熱基材、２はPAIワニス、２′は槽、
３はワニス含浸塗布用ローラー、４は熱風乾燥
炉、５は排気孔、そして６は樹脂加工基材であ
る。 Figure 1 is a model diagram of the apparatus for obtaining resin-processed base materials, where 1 is a heat-resistant base material, 2 is PAI varnish, 2' is a tank,
3 is a varnish impregnation coating roller, 4 is a hot air drying oven, 5 is an exhaust hole, and 6 is a resin processed base material.
炉内雰囲気温度は、溶剤の沸点以下で、沸点を
10〜30℃下廻る温度に調節される。 The temperature of the atmosphere in the furnace must be below the boiling point of the solvent.
The temperature is adjusted to 10-30℃ below.
PAI固形分40％、Ｎ―メチル―２―ピロリドン
溶剤60％からなるワニスを用いた場合、熱風乾燥
炉を通過して得られた指触乾燥状態の樹脂加工基
材においては、耐熱基材を除いてPAI固形分と溶
剤の割合は固形分70％、溶剤30％と相当量（約半
分前後）の溶剤が除去された態様のものとなる。 When using a varnish consisting of 40% PAI solids and 60% N-methyl-2-pyrrolidone solvent, the heat-resistant base material is dry to the touch after passing through a hot air drying oven. The ratio of PAI solid content to solvent is 70% solid content and 30% solvent, which means that a considerable amount (about half) of the solvent has been removed.
第２図は、本発明の一次成形物を得る装置の模
型図で、７はポリエステルフイルム、８は加熱ロ
ーラー、９は受けローラー、１０はこれら２本の
ローラー８，９と接触して回転する芯金、１１は
樹脂加工基材６とポリエステルフイルム７とが交
互に層状に捲回された一次成形物、１２は加圧ロ
ーラーである。 FIG. 2 is a schematic diagram of an apparatus for obtaining a primary molded product of the present invention, in which 7 is a polyester film, 8 is a heating roller, 9 is a receiving roller, and 10 is rotated in contact with these two rollers 8 and 9. The core bar 11 is a primary molded product in which a resin processed base material 6 and a polyester film 7 are wound alternately in layers, and 12 is a pressure roller.
樹脂加工基材６およびポリエステルフイルム７
は、ともに引張りを受けながら加熱ローラー８で
加熱され、加圧ローラー１２によつて加圧されな
がら芯金１０に捲回される。加熱ローラー８によ
る加熱は、溶剤の沸点（204℃）以下、おおむね
沸点を10〜30℃下廻わる温度とする。 Resin processed base material 6 and polyester film 7
is heated by a heating roller 8 while both are under tension, and is wound around a core bar 10 while being pressed by a pressure roller 12. The heating by the heating roller 8 is performed at a temperature below the boiling point of the solvent (204°C), approximately 10 to 30°C below the boiling point.
この一次成形工程で、溶剤量は樹脂加工基材中
に残存する溶剤量の２分の１もしくはそれ以下、
すなわち６〜15％程度となる。この溶剤減量は、
加熱ローラー８の加熱温度、ローラーの径、材料
と加熱ローラーとの接触距離、材料の送り速度
（芯金の回転速度）などに関係する。 In this primary molding process, the amount of solvent is one-half or less of the amount of solvent remaining in the resin processed base material.
In other words, it is about 6 to 15%. This solvent loss is
It is related to the heating temperature of the heating roller 8, the diameter of the roller, the contact distance between the material and the heating roller, the feeding speed of the material (rotation speed of the core metal), etc.
この一次成形工程は、樹脂加工基材に存在する
若干の樹脂ムラを均し、ピンホールを消滅させ、
そして表面を平滑化し光沢を与えるうえで重要で
ある。 This primary molding process evens out some resin unevenness that exists in the resin processed base material, eliminates pinholes,
It is also important in smoothing the surface and giving it gloss.
第３図は、一次成形を経た成形物を通気性を有
する耐熱多孔質シートと重ね合わせて捲回し、樹
脂の硬化を進める工程を説明するための横断面図
で、１３は耐熱多孔質シートそして１４は芯金で
ある。 FIG. 3 is a cross-sectional view for explaining the process of overlapping and winding the molded product that has undergone primary molding with a heat-resistant porous sheet having air permeability to advance the curing of the resin; 13 is a heat-resistant porous sheet and 14 is a core metal.
この工程では、第２図による一次成形物を冷却
したのちポリエステルフイルムを剥ぎ取つて除去
し、改めて耐熱多孔質シート１３と重ね合わせて
芯金１４に捲回し、この状態のものを熱風乾燥炉
に入れて溶剤の沸点以上の温度にまで徐々に昇温
させて溶剤をほぼ完全に除去するとともに樹脂の
硬化を完了させる。 In this step, after cooling the primary molded product shown in FIG. 2, the polyester film is peeled off and removed, and the heat-resistant porous sheet 13 is again overlapped and wound around the core bar 14, and the product in this state is placed in a hot air drying oven. The temperature is gradually raised to a temperature above the boiling point of the solvent to almost completely remove the solvent and complete curing of the resin.
通気性を有する耐熱多孔質シート１３を捲回層
間に介在させるのは、残存溶剤の系外への除去に
便ならしめるもので、もしこのようなシート１３
を介在せしめることなく硬化を進めると、硬化が
完全に行なわれないばかりでなく、樹脂に斑絞や
染みを生じさせるという問題を引きおこすのでよ
くない。 The purpose of interposing the heat-resistant porous sheet 13 having air permeability between the wound layers is to facilitate the removal of residual solvent from the system.
If curing proceeds without intervening, not only will the curing not be completed, but it will also cause problems such as uneven curing and staining of the resin, which is not good.
以下、実施例について説明する。 Examples will be described below.
Ｎ―メチル―２―ピロリドンを溶剤とした固形
分38％のPAIワニス（大日精化社製AI―630）
を、厚さ0.1mmのガラス織布（日東紡績社製
WE10G104）に含浸塗布したのち、溶剤の沸点以
下の雰囲気温度に調節した熱風乾燥炉を通過させ
て指触乾燥状態の樹脂加工基材を得た。 PAI varnish with a solid content of 38% using N-methyl-2-pyrrolidone as a solvent (AI-630 manufactured by Dainichiseika Kaisha)
, 0.1 mm thick glass woven cloth (manufactured by Nittobo Co., Ltd.)
WE10G104) was impregnated and coated, and then passed through a hot air drying oven whose ambient temperature was adjusted to below the boiling point of the solvent to obtain a resin processed base material that was dry to the touch.
このものの成分組成は、
ガラス織布基材 30％
PAI固形分 50％
溶 剤 20％
で、PAI固形分と溶剤との合量に対して、固形分
約70％そして溶剤約30％（当初の62％に比較して
約２分の１）である。 The composition of this material is glass woven fabric base material 30% PAI solid content 50% solvent 20%, and the total amount of PAI solid content and solvent is approximately 70% solids and approximately 30% solvent (initial 62%).
このようにして得られた帯状の樹脂加工基材
を、厚さ125ミクロンのPETフイルムに重ね合わ
せ、それぞれに巾10mm当り３Kgの張力を与えて材
料送り速度１m/min、185℃に加熱した加熱ロー
ルに約50cmの接触距離を与えてPETフイルムを
介して接触させて加熱し、芯金に樹脂加工基材が
内側になるように捲回した。 The thus obtained strip-shaped resin-processed base material was overlaid on a 125-micron-thick PET film, and a tension of 3 kg per 10 mm width was applied to each layer, and the material was heated to 185°C at a material feed rate of 1 m/min. A contact distance of about 50 cm was applied to the roll, the PET film was brought into contact with the film, and the film was heated, and the core metal was wound so that the resin-treated base material was on the inside.
捲回時に加圧ローラー１２によつて芯金に加え
る加圧力は、軸線方向１cm当り13Kgとした。 The pressure applied to the core metal by the pressure roller 12 during winding was 13 kg per 1 cm in the axial direction.
このようにして、帯状樹脂加工基材15mを捲回
したのち、全体を放冷し、ほぼ室温に達したのち
PETフイルムを剥ぎ取つて除去した。 In this way, after winding up 15 m of strip-shaped resin-processed base material, the whole was left to cool, and after it reached almost room temperature,
The PET film was peeled off and removed.
得られた一次成形物の成分組成は、 ガラス織布基材 33.3％ PAI固形分 55.6％ 溶 剤 11.1％ であつた。 The composition of the obtained primary molded product is as follows: Glass woven fabric base material 33.3% PAI solid content 55.6% Solvent 11.1% It was hot.
PAI固形分と溶剤との合量に対して、固形分約
83％そして溶剤約17％（当初の62％に対して約４
分の１強）である。 The solid content is approximately
83% and about 17% solvent (about 4% compared to the original 62%)
).
このようにして得られた一次成形物を、厚さ
0.4のアスベストペーパー（十条製紙社製、商品
名アスパール）に重ね合わせて、とくに加圧する
ことなく芯金に捲回した。 The primary molded product obtained in this way is
It was overlapped with 0.4 asbestos paper (manufactured by Jujo Paper Co., Ltd., trade name: Aspal) and wound around a core bar without applying any particular pressure.
この捲回物を熱風乾燥炉内に入れて以下の条件
で樹脂の硬化を進めた。 This rolled product was placed in a hot air drying oven and the resin was cured under the following conditions.
150℃ ２時間
170℃ ２時間
180℃ ２時間
200℃ ２時間
220℃ ２時間
250℃ ２時間
最終処理後、全体を室温にまで冷却し、捲回物
を巻き戻しながらアスベストペーパーを取り去
り、ガラス織布基材入りPAI長尺シートを得た。 150℃ 2 hours 170℃ 2 hours 180℃ 2 hours 200℃ 2 hours 220℃ 2 hours 250℃ 2 hours After the final treatment, the whole was cooled to room temperature, the asbestos paper was removed while the wound material was rewound, and the glass fabric was A PAI long sheet containing a cloth base material was obtained.
このようにして得られたシートの物性値は以下
に示すとおりであつた。 The physical properties of the sheet thus obtained were as shown below.
重量減少開始温度 380℃ 引張強さ（縦方向） 2250Kg/cm2 （横方向） 1800Kg/cm2 誘電損失 0.16×10-2 誘電率 3.25 表面抵抗 0.27×1015Ω 体積固有抵抗 5.63×1015Ωcm Weight loss start temperature 380℃ Tensile strength (longitudinal direction) 2250Kg/cm 2 (horizontal direction) 1800Kg/cm 2 Dielectric loss 0.16×10 -2 Dielectric constant 3.25 Surface resistance 0.27×10 15 Ω Volume resistivity 5.63×10 15 Ωcm
第１図は、樹脂加工基材を得る装置の模型図、
第２図は、一次成形物を得る装置の模型図、そし
て第３図は、一次成形物を通気性を有する耐熱多
孔質シートと重ね合わせて捲回し、樹脂の硬化を
進める工程を説明するための捲回物の横断面図で
ある。
１…耐熱基材、２…PAIワニス、３…ワニス含
浸塗布用ローラー、４…熱風乾燥炉、６…樹脂加
工基材、７…ポリエステルフイルム、８…加熱ロ
ーラー、９…受けローラー、１０…芯金、１１…
一次成形物、１２…加圧ローラー、１３…通気性
を有する耐熱多孔質シート。
FIG. 1 is a schematic diagram of an apparatus for obtaining a resin-processed base material;
Figure 2 is a schematic diagram of the apparatus for obtaining the primary molded product, and Figure 3 is for explaining the process of overlapping and winding the primary molded product with a heat-resistant porous sheet having air permeability to proceed with curing of the resin. FIG. 1...Heat-resistant base material, 2...PAI varnish, 3...Roller for varnish impregnation application, 4...Hot air drying oven, 6...Resin processing base material, 7...Polyester film, 8...Heating roller, 9...Receiving roller, 10... Core Gold, 11...
Primary molded product, 12...pressure roller, 13...heat-resistant porous sheet having air permeability.
Claims (1)
維、そしてチタン酸カリ繊維のいずれか一種ま
たは二種以上からなる織布、不織布などの帯状
耐熱基材に、ポリアミドイミド樹脂ワニスを含
浸塗布し、これを溶剤の沸点以下の温度に加温
して相当量の溶剤を除去して指触乾燥状態の樹
脂加工基材を得る工程、 (ロ) 得られた樹脂加工基材をポリエステルフイル
ムと重ね合わせ、それぞれに張力を与えながら
溶剤の沸点以下の温度に加温して芯金上に加圧
捲回して巻き重ねる一次成形工程、 (ハ) 該一次成形物からポリエステルフイルムを剥
ぎ取り、ついで該成形物を通気性を有する耐熱
多孔質シートと重ね合わせて芯金上に捲回する
工程、 (ニ) ついで、該捲回物を溶剤の沸点以上の温度に
まで徐々に昇温させて溶剤を除去するとともに
樹脂の硬化を進める工程、 (ホ) 硬化完了後、該耐熱多孔質シートを除去する
工程、 以上、(イ)(ロ)(ハ)(ニ)そして(ホ)からなることを特
徴と
した耐熱基材入りポリアミドイミド樹脂長尺シー
トの製造方法。 ２ 耐熱多孔質シートが、ガラス繊維、アスベス
ト繊維、炭素繊維、チタン酸カリ繊維のいずれか
一種または二種以上からなる通気性を有する不織
布または織布であることを特徴とした特許請求の
範囲第１項記載の耐熱基材入りポリアミドイミド
樹脂長尺シートの製造方法。[Scope of Claims] 1 (a) A polyamide-imide resin varnish is applied to a belt-shaped heat-resistant base material such as a woven fabric or non-woven fabric made of one or more of glass fiber, asbestos fiber, carbon fiber, and potassium titanate fiber. (b) obtaining a resin-processed base material that is dry to the touch by impregnating and coating it and heating it to a temperature below the boiling point of the solvent to remove a considerable amount of the solvent; (b) applying the resulting resin-processed base material; A primary forming process in which the polyester film is overlapped with a polyester film, heated to a temperature below the boiling point of the solvent while applying tension to each, and wound under pressure onto a core bar. (c) Peeling off the polyester film from the primary formed product. (d) Then, the temperature of the wound product is gradually raised to a temperature higher than the boiling point of the solvent. (e) removing the heat-resistant porous sheet after curing is completed, from (a), (b), (c), (d), and (e). A method for producing a long sheet of polyamide-imide resin containing a heat-resistant base material. 2. Claim No. 2, characterized in that the heat-resistant porous sheet is a breathable nonwoven or woven fabric made of one or more of glass fibers, asbestos fibers, carbon fibers, and potassium titanate fibers. A method for producing a long sheet of polyamide-imide resin containing a heat-resistant base material according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57123777A JPS5914927A (en) | 1982-07-17 | 1982-07-17 | Manufacture of polyamide-imide resin long size sheet with heat resistant base therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57123777A JPS5914927A (en) | 1982-07-17 | 1982-07-17 | Manufacture of polyamide-imide resin long size sheet with heat resistant base therein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5914927A JPS5914927A (en) | 1984-01-25 |
| JPS64208B2 true JPS64208B2 (en) | 1989-01-05 |
Family
ID=14869020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57123777A Granted JPS5914927A (en) | 1982-07-17 | 1982-07-17 | Manufacture of polyamide-imide resin long size sheet with heat resistant base therein |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5914927A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0221718A (en) * | 1988-07-11 | 1990-01-24 | Rohm Co Ltd | Pulse generator |
| CN104175698A (en) * | 2014-08-07 | 2014-12-03 | 长沙水能量新材料有限公司 | Automatic production line of water-retaining maintaining film |
-
1982
- 1982-07-17 JP JP57123777A patent/JPS5914927A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5914927A (en) | 1984-01-25 |
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