JPH0226845B2 - - Google Patents
Info
- Publication number
- JPH0226845B2 JPH0226845B2 JP2077384A JP2077384A JPH0226845B2 JP H0226845 B2 JPH0226845 B2 JP H0226845B2 JP 2077384 A JP2077384 A JP 2077384A JP 2077384 A JP2077384 A JP 2077384A JP H0226845 B2 JPH0226845 B2 JP H0226845B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- sheet
- stacked body
- prepreg
- fibers
- 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
- 229920005989 resin Polymers 0.000 claims description 51
- 239000011347 resin Substances 0.000 claims description 51
- 239000012783 reinforcing fiber Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 description 11
- 239000004744 fabric Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000011176 pooling Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
- B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はプリプレグの製造装置に関し、特にプ
リプレグにおける毛羽と樹脂むらの発生を防止す
るための改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a prepreg manufacturing apparatus, and particularly to an improvement for preventing the occurrence of fuzz and resin unevenness in prepreg.
従来、プリプレグは、シート状に配列した補強
繊維のストランドの両面に、Ｂ−ステージ（半硬
化状）の樹脂を塗布した樹脂担持シートをそれぞ
れ重ね合せ、得られた重ね合せ体を加熱ロールで
挾圧し、樹脂担持シートの樹脂を補強繊維に転
移、含浸させて製造していた。
Conventionally, prepreg is produced by stacking resin carrier sheets coated with B-stage (semi-cured) resin on both sides of strands of reinforcing fibers arranged in a sheet shape, and sandwiching the resulting stacked body with heated rolls. It was manufactured by pressing the resin carrier sheet to transfer and impregnate the reinforcing fibers with the resin.
しかしながら、かかる従来の製造装置では、第
１図に示すように、重ね合せ体１が加熱ロール
２，２で挾圧され、しごかれるので、加熱ロール
の前でシートが脹らみ、重ね合せ体１の上側およ
び下側に樹脂溜り３を生ずる。 However, in such conventional manufacturing equipment, as shown in FIG. 1, the stacked body 1 is pinched and squeezed between heating rolls 2, 2, so that the sheets swell in front of the heating rolls and the stacked body 1 is squeezed and squeezed. Resin pools 3 are formed on the upper and lower sides of the body 1.
そして、この樹脂溜りでは、加熱ロール２，２
回転により重ね合せ体が移動するにつれて、溜つ
た樹脂が回転し、この結果、特に炭素繊維のよう
に曲げ方向の力にたいして弱い補強繊維では、単
糸が切断されて毛羽を発生し、脱落する。 In this resin pool, heating rolls 2, 2
As the stacked body moves due to rotation, the accumulated resin rotates, and as a result, especially in reinforcing fibers such as carbon fibers, which are weak against bending forces, single filaments are cut, generate fuzz, and fall off.
この脱落した毛羽は、樹脂溜り３中に蓄積さ
れ、補強繊維に対する樹脂含浸むらを発生させる
ばかりか、プリプレグ上に残つてその表面に凹凸
を発生させる。 This fallen fuzz not only accumulates in the resin reservoir 3 and causes uneven resin impregnation of the reinforcing fibers, but also remains on the prepreg and causes unevenness on its surface.
本発明の目的は、単糸の切断による毛羽の発生
を抑制すると共に、プリプレグにおける樹脂のむ
らを防止することにある。
An object of the present invention is to suppress the generation of fuzz due to cutting of single filaments, and to prevent unevenness of resin in prepreg.
上記目的を達成する本発明は、シート状補強繊
維の両面に、それぞれ、かつ少なくとも一方が樹
脂担持シートであるシートを重ね合せ、その重ね
合せ体を加熱ロールで挾圧して樹脂を補強繊維に
転移、含浸させるプリプレグの製造装置におい
て、前記加熱ロールのニツプ点の前方に、そのニ
ツプ点に近接し、かつ前記重ね合せ体の少なくと
も下面に近接または接触する位置に樹脂溜り制御
板を設けたことを特徴とするものである。
The present invention achieves the above object by superimposing sheets on both sides of a sheet-like reinforcing fiber, each of which has at least one resin-supporting sheet, and pressing the superimposed body with heated rolls to transfer the resin to the reinforcing fiber. In the impregnated prepreg manufacturing apparatus, a resin pool control plate is provided in front of the nip point of the heating roll, close to the nip point, and at a position close to or in contact with at least the lower surface of the stacked body. This is a characteristic feature.
以下、本発明を図面に示す実施例にもとずき説
明する。
Hereinafter, the present invention will be explained based on embodiments shown in the drawings.
第２図において、補強繊維１１はパツケージ１
２から互いに並行かつシート状に繰り出され、一
方、下側樹脂担持シート１３はロール１４から、
帯状に供給され、それぞれガイドロール１５，１
５を経て補強繊維１１の下面に下側樹脂担持シー
ト１３の樹脂面側がまず重ね合される。 In FIG. 2, the reinforcing fibers 11 are
2 are fed out parallel to each other in sheet form, while the lower resin carrier sheet 13 is fed out from the roll 14,
Supplied in a strip shape, each guide roll 15,1
5, the resin surface side of the lower resin carrying sheet 13 is first superimposed on the lower surface of the reinforcing fibers 11.
又、ロール１６からは上側樹脂担持シート１７
が繰り出され、補強繊維１１の上面に上側樹脂担
持シート１７の樹脂面側が重ね合され、重ね合せ
体１８が形成される。なお、本発明においては、
上下二枚の樹脂担持シートのうちいずれか一方
を、樹脂を担持しないシートとしてもよいもので
ある。すなわち、樹脂担持シートは、上記重ね合
せ体のいずれか一方の面に重ね合せることでよ
い。 Further, from the roll 16, the upper resin carrier sheet 17
is fed out, and the resin surface side of the upper resin carrying sheet 17 is superimposed on the upper surface of the reinforcing fibers 11 to form a superimposed body 18. In addition, in the present invention,
Either one of the upper and lower resin-supporting sheets may be a sheet that does not support resin. That is, the resin support sheet may be superimposed on either side of the above-mentioned stacked body.
ここで、本発明において使用される補強繊維
は、炭素繊維、ガラス繊維、例えばポリアラミド
繊維等の有機高弾性繊維、シリコンカーバイド繊
維、アルミナ繊維、ボロン繊維等の高強度、高弾
性繊維であり、通常ではストランドの形態で使用
される。 Here, the reinforcing fibers used in the present invention are carbon fibers, glass fibers, organic high modulus fibers such as polyaramid fibers, high strength and high modulus fibers such as silicon carbide fibers, alumina fibers, and boron fibers, and are usually It is used in the form of strands.
かかる補強繊維は、ただ一種のものを使用して
も良いし、例えば炭素繊維とガラス繊維、炭素繊
維と有機高弾性繊維のように、二種類以上の繊維
を、幅方向に交互に種類を変えて規則的に、又は
不規則に並べて使用しても良い。 Such reinforcing fibers may be of one type, or two or more types of fibers may be used, alternating in the width direction, such as carbon fiber and glass fiber, or carbon fiber and organic high-modulus fiber. They may be used by arranging them regularly or irregularly.
又、上側および下側樹脂担持シートのベースと
なるシートは、厚さ0.05〜0.2mm程度のクラフト
紙、ロール紙、グラシン紙等の片面又は両面に、
クレー、澱粉、ボリエチレン、ポリビニルアルコ
ール等の目止剤の塗布層を設け、更にその各塗布
層の上にシリコーン系、又は非シリコーン系の離
型剤、好ましくはポリジメチルシロキサンとポリ
ジメチルハイドロジエンシロキサンとの縮合反応
型、又は付加反応型シリコーンからなる離型剤を
塗布したものである。 The base sheets for the upper and lower resin-supporting sheets are made of kraft paper, roll paper, glassine paper, etc. with a thickness of about 0.05 to 0.2 mm, and can be coated on one or both sides.
A coating layer of a filler such as clay, starch, polyethylene, polyvinyl alcohol, etc. is provided, and a silicone-based or non-silicone mold release agent, preferably polydimethylsiloxane and polydimethylhydrodienesiloxane, is further applied on each coating layer. A mold release agent made of condensation reaction type silicone or addition reaction type silicone is coated.
シートに担持する樹脂は、エポキシン樹脂、不
飽和ポリエステル樹脂、フエノール樹脂、ポリイ
ミド樹脂等の熱硬化性樹脂である。これらの樹脂
は、Ｂ−ステージ（半硬化）の状態にある。 The resin supported on the sheet is a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, a phenol resin, or a polyimide resin. These resins are in a B-stage (semi-cured) state.
樹脂の担持量は、最終的に得られるプリプレグ
の樹脂含有量が20〜70重量％、好ましくは30〜50
％重量になるように調整される。なお、シートへ
の樹脂の担持は塗布により行うのが好ましい。 The amount of resin supported is such that the resin content of the final prepreg is 20 to 70% by weight, preferably 30 to 50% by weight.
% weight. Note that it is preferable that the resin be supported on the sheet by coating.
上記シートは、いわゆる離型紙としても作用
し、プリプレグにあつてその補強繊維の配列が乱
れるのを防止すると共に、プリプレグを吸湿から
保護している。 The above-mentioned sheet also acts as a so-called release paper, and prevents the arrangement of reinforcing fibers in the prepreg from becoming disordered, as well as protecting the prepreg from moisture absorption.
本発明においては、次に重ね合せ体１８は加熱
ロール１９，１９に供給され、挾圧され、加熱さ
れて、樹脂が補強繊維に転移、含浸され、一方向
性プリプレグが得られる。 In the present invention, the stacked body 18 is then supplied to heating rolls 19, 19, pressed and heated to transfer and impregnate the reinforcing fibers with resin, thereby obtaining a unidirectional prepreg.
ここで本発明において重要なことは、樹脂溜り
制御板２０が設けられていることである。 What is important in the present invention is that a resin pool control plate 20 is provided.
この樹脂溜り制御板２０は、重ね合せ体１８の
少なくとも下側に設けられ、重ね合せ体１８に近
接または接触して位置すると共に、加熱ロール１
９，１９のニツプ点２１にも近接してニツプ点２
１の前方に位置している。 This resin pool control plate 20 is provided at least below the stacked body 18, is located close to or in contact with the stacked body 18, and is located on the heating roll 1.
Nip point 2 is also close to nip point 21 of 9 and 19.
It is located in front of 1.
第３図は加熱ロール１９，１９の近傍をより詳
細に示し、樹脂溜り制御板２０を設けたことによ
り、樹脂溜り３が重ね合せ体１８の上側のみに形
成されている。 FIG. 3 shows the vicinity of the heating rolls 19, 19 in more detail, and by providing the resin pool control plate 20, the resin pool 3 is formed only on the upper side of the stacked body 18.
樹脂溜り制御板２０の位置は、好ましくは加熱
ロール１９，１９のニツプ点の高さより１mm程度
下の位地であり、また樹脂溜り制御板２０は重ね
合せ体１８の上側に同様に併用することもでき
る。 The position of the resin pool control plate 20 is preferably about 1 mm below the height of the nip point of the heating rolls 19, 19, and the resin pool control plate 20 is also used on the upper side of the stacked body 18. You can also do it.
なお、加熱ロールは補強繊維のストランドの押
し広げと、それに対する樹脂の含浸を行うもの
で、80〜180℃、好ましくは90〜150℃に加熱され
る。 The heating roll is used to spread the reinforcing fiber strands and impregnate them with resin, and is heated to 80 to 180°C, preferably 90 to 150°C.
又、加圧力は線圧として１cm当り数キログラム
である。 Moreover, the pressing force is several kilograms per 1 cm as a linear pressure.
次に本発明においては、得られたプリプレグか
ら、上側樹脂担持シート１７を構成するシート１
７′をガイドロール２２を介して剥離し、巻き取
るためのロール２３が設けられ、更に必要に応じ
てスクリムクロス２４を供給するロール２５およ
びスクリムクロス貼り合せロール２６，２６が設
けられ、得られたプリプレグ２７は巻き取りロー
ル２８に巻き取られる。 Next, in the present invention, the sheet 1 constituting the upper resin support sheet 17 is made from the obtained prepreg.
A roll 23 is provided for peeling off and winding up the scrim cloth 7' through a guide roll 22, and a roll 25 for supplying a scrim cloth 24 and scrim cloth bonding rolls 26, 26 are provided as necessary. The prepared prepreg 27 is wound onto a winding roll 28.
なお、スクリムクロスとは、上記補強繊維を平
織又は朱子織したものであり、炭素繊維や有機高
弾性繊維からなるものである場合には、厚さ0.02
〜0.15mm、好ましくは0.02〜0.05mm、目付10〜90
ｇ／m2、好ましくは20〜60ｇ／m2であり、ガラス
繊維からなるものである場合には、厚さ0.01〜
0.1mm、好ましくは0.02〜0.05mm、目付10〜80ｇ／
m2である。 Note that scrim cloth is a plain weave or satin weave of the above-mentioned reinforcing fibers, and if it is made of carbon fiber or organic high-elastic fiber, it has a thickness of 0.02 mm.
~0.15mm, preferably 0.02~0.05mm, area weight 10~90
g/ m2 , preferably 20 to 60 g/ m2 , and in the case of glass fiber, the thickness is 0.01 to
0.1mm, preferably 0.02~0.05mm, weight 10~80g/
m2 .
かかるスクリムクロスは、一方向性プリプレグ
に幅方向強度を与えると共に、補強繊維の配列状
態が乱れるのを防止する機能を有する。 Such scrim cloth has the function of imparting strength in the width direction to the unidirectional prepreg and preventing the arrangement of reinforcing fibers from becoming disordered.
又、スクリムスクロス貼り合せロール２６は、
加熱温度50〜130℃、好ましくは70〜120℃であり
加圧力は線圧として数Kg程度／cmである。 In addition, the scrim cloth bonding roll 26 is
The heating temperature is 50 to 130°C, preferably 70 to 120°C, and the pressing force is about several kg/cm as a linear pressure.
上記実施例で得られる一方向性プリプレグは、
0.02〜１mm、好ましくは0.03〜0.5mmの厚さを有
し、30〜80重量％、好ましくは50〜70重量％の補
強繊維を含んでいる。 The unidirectional prepreg obtained in the above example is
It has a thickness of 0.02 to 1 mm, preferably 0.03 to 0.5 mm, and contains 30 to 80% by weight, preferably 50 to 70% by weight of reinforcing fibers.
上記実施例においては、補強繊維のストランド
を互いに並行かつシート状に引き揃えて繰り出す
場合について説明したが、マツトや織物など、あ
らかじめシート状に加工したものを繰り出すよう
にしてもよい。 In the above embodiment, a case has been described in which the strands of reinforcing fibers are drawn parallel to each other in a sheet shape and paid out, but it is also possible to pay out strands of reinforcing fibers that have been processed into a sheet shape in advance, such as mat or woven fabric.
以上述べたように、本発明によれば加熱ロール
のニツプ点の前方に、そのニツプ点に近接し、か
つ重ね合せ体の少なくとも下面に近接または接触
する位置に樹脂溜り制御板を設けたので、重ね合
せ体の少なくとも下側に加熱ロールによる挾圧に
よる樹脂溜りができるのを防止することができ
る。従つて、樹脂溜りによつて補強繊維の単糸が
切断されることによる毛羽の発生が抑制され、そ
れが少なくともプリプレグと下側のシートとの間
に混入することを防止することができ、また毛羽
の蓄積による樹脂含浸むらを防止することができ
る。
As described above, according to the present invention, the resin pool control plate is provided in front of the nip point of the heating rolls, close to the nip point, and at a position close to or in contact with at least the lower surface of the stacked body. It is possible to prevent a resin pool from being formed at least on the lower side of the stacked body due to the clamping pressure of the heating rolls. Therefore, it is possible to suppress the generation of fluff due to the single fibers of the reinforcing fibers being cut by the resin pool, and to prevent fluff from being mixed between the prepreg and the lower sheet at least. It is possible to prevent uneven resin impregnation due to accumulation of fuzz.
なお、重ね合せ体の下側のみに樹脂溜り制御板
を設けた場合には、樹脂溜りが重ね合せ体の上側
に形成されて毛羽が同様に発生するが、この毛羽
は上側なので観察が容易であり、上側樹脂担持シ
ートを構成するシートを剥離した後に除去するこ
とができる。 Note that if a resin pool control plate is provided only on the bottom side of the stacked body, a resin pool will be formed on the top side of the stacked body and fluff will similarly occur, but this fluff is easy to observe because it is on the top side. It can be removed after peeling off the sheet constituting the upper resin-carrying sheet.
又、少なくとも重ね合せ体の下側に設ける樹脂
溜り制御板の、重ね合せ体との距離や加熱ロール
のニツプ点との距離を適宜調節することにより、
重ね合せ体の上側に生ずる樹脂溜りの量を制御す
ることができ、過大な樹脂溜り量による毛羽の発
生や樹脂含浸むらの発生を防止することがきる。 Furthermore, by appropriately adjusting at least the distance from the stacked body and the distance from the nip point of the heating roll of the resin pool control plate provided on the lower side of the stacked body,
The amount of resin pooling generated on the upper side of the stacked body can be controlled, and generation of fuzz and uneven resin impregnation due to an excessive amount of resin pooling can be prevented.
第１図は従来のプリプレグ製造装置の加熱ロー
ル近傍における樹脂溜りの発生状況を示す説明
図、第２図は本発明の実施例を示す概要側面図、
第３図は本発明における加熱ロールの近傍を示す
概要側面図である。
１１……補強繊維、１３，１７……樹脂担持シ
ート、１９……加熱ロール、２０……樹脂溜り制
御板、２１……ニツプ点。
FIG. 1 is an explanatory diagram showing the occurrence of resin pools near the heating roll of a conventional prepreg manufacturing apparatus, and FIG. 2 is a schematic side view showing an embodiment of the present invention.
FIG. 3 is a schematic side view showing the vicinity of the heating roll in the present invention. DESCRIPTION OF SYMBOLS 11... Reinforcement fiber, 13, 17... Resin support sheet, 19... Heating roll, 20... Resin pool control board, 21... Nip point.
Claims (1)
少なくとも一方が樹脂担持シートであるシートを
重ね合せ、その重ね合せ体を加熱ロールで挾圧し
て樹脂を補強繊維に移転、含浸させるプリプレグ
の製造装置において、前記加熱ロールのニツプ点
の前方に、そのニツプ点に近接し、かつ前記重ね
合せ体の少なくとも下面に近接または接触する位
置に樹脂溜り制御板を設けたことを特徴とするプ
リプレグの製造装置。1. In a prepreg manufacturing apparatus in which sheets, each of which is a resin-supporting sheet, are superimposed on both sides of a sheet-shaped reinforcing fiber, and the superimposed body is pressed with heated rolls to transfer and impregnate the reinforcing fiber with resin. . A prepreg manufacturing apparatus, characterized in that a resin pool control plate is provided in front of a nip point of the heating rolls, in close proximity to the nip point, and in close proximity to or in contact with at least the lower surface of the stacked body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2077384A JPS60165211A (en) | 1984-02-09 | 1984-02-09 | Manufacture of prepreg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2077384A JPS60165211A (en) | 1984-02-09 | 1984-02-09 | Manufacture of prepreg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60165211A JPS60165211A (en) | 1985-08-28 |
| JPH0226845B2 true JPH0226845B2 (en) | 1990-06-13 |
Family
ID=12036476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2077384A Granted JPS60165211A (en) | 1984-02-09 | 1984-02-09 | Manufacture of prepreg |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60165211A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6136157B2 (en) * | 2012-09-19 | 2017-05-31 | 住友ベークライト株式会社 | Prepreg manufacturing method and prepreg manufacturing apparatus |
-
1984
- 1984-02-09 JP JP2077384A patent/JPS60165211A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60165211A (en) | 1985-08-28 |
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