JPH0688303B2 - Method and apparatus for producing short fiber composite elastomer - Google Patents
Method and apparatus for producing short fiber composite elastomerInfo
- Publication number
- JPH0688303B2 JPH0688303B2 JP2195443A JP19544390A JPH0688303B2 JP H0688303 B2 JPH0688303 B2 JP H0688303B2 JP 2195443 A JP2195443 A JP 2195443A JP 19544390 A JP19544390 A JP 19544390A JP H0688303 B2 JPH0688303 B2 JP H0688303B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber composite
- short fiber
- composite elastomer
- circumferential direction
- peripheral surface
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、拡張ダイによる短繊維複合エラストマーの押
出しにより短繊維を円周方向に高度に配向させる短繊維
複合エラストマーの製造方法及びその製造装置に関する
ものである。TECHNICAL FIELD The present invention relates to a method for producing a short fiber composite elastomer in which short fibers are highly oriented in the circumferential direction by extrusion of a short fiber composite elastomer by an expansion die, and an apparatus for producing the same. It is about.
（従来の技術） 一般に、高負荷条件下で使用できるように、伝動ベルト
の底ゴムとして、短繊維がベルト幅方向に配向された繊
維複合エラストマーを用いることは行われている。(Prior Art) Generally, a fiber composite elastomer in which short fibers are oriented in the belt width direction is used as the bottom rubber of a transmission belt so that it can be used under high load conditions.
そのような伝動ベルトの底ゴムとして用いるために、短
繊維をシートの幅方向に配向する方法として、従来よ
り、短繊維複合エラストマーをカレンダにより圧延し
て、長手方向に短繊維が配向された圧延シートを形成
し、該圧延シートを長手方向に直交する方向に切断し、
横方向に継いで幅方向に短繊維が配向されたシートを製
造することが行われている。As a method for orienting short fibers in the width direction of a sheet for use as a bottom rubber of such a power transmission belt, conventionally, a short fiber composite elastomer is rolled by a calender, and short fibers are oriented in the longitudinal direction. Form a sheet, cut the rolled sheet in a direction orthogonal to the longitudinal direction,
It has been practiced to manufacture a sheet in which short fibers are oriented in the width direction while continuing in the width direction.
この方向の場合、圧延シートは、圧延方向（Ｘ軸方
向）、幅方向（Ｙ方向）及び厚さ方向（Ｚ方向）それぞ
れの軸方向成分の比率（配向率）が、 Ｘ方向:90〜95％ Ｙ方向:5〜７％ Ｚ方向:3〜５％ となっている。なお、配向率の試験評価は、周知のトル
エンによる膨潤試験方法で評価した。In this direction, the rolled sheet has a ratio (orientation rate) of axial direction components in the rolling direction (X axis direction), width direction (Y direction) and thickness direction (Z direction): X direction: 90 to 95 % Y direction: 5 to 7% Z direction: 3 to 5%. The test evaluation of the orientation rate was performed by a well-known swelling test method using toluene.
上述した方法は、切断してから継ぐため製造が面倒であ
ることから、例えば特公昭53-14269号公報に記載される
ように、所定の環状溝を有する拡張ダイを用い、該環状
溝を通じて短繊維複合エラストマーを円周方向に伸長さ
せながら押出し、円周方向に短繊維が配向された円筒状
体を成形し、その円筒状体を切り開いて、短繊維が幅方
向に配向されたシートを得ることが行われている。すな
わち、第２図に示すように、外側ダイ1Aと内側ダイ1Bと
で、環状溝２が形成される拡張ダイ１の該環状溝２を通
じて短繊維複合エラストマーＥが通過することで、円筒
状の短繊維複合エラストマーＥの短繊維が円周方向に配
向される。3,4,5はそれぞれ外側ダイ1Aと内側ダイ1Bと
を連結するためのねじ棒、ワッシャ及びナットである。
なお、拡張ダイ１の入口半径をR1、出口半径をR0とする
と、後述するように、 R0／R1≦7.0 なる関係が成り立っている。Since the above-described method is troublesome to manufacture after cutting and joining, for example, as described in JP-B-53-14269, an expansion die having a predetermined annular groove is used, and a short die is formed through the annular groove. Extruding the fiber composite elastomer while stretching it in the circumferential direction to form a cylindrical body in which the short fibers are oriented in the circumferential direction, and cutting the cylindrical body to obtain a sheet in which the short fibers are oriented in the width direction. Is being done. That is, as shown in FIG. 2, the outer die 1A and the inner die 1B pass through the annular groove 2 of the expansion die 1 in which the annular groove 2 is formed, and the short fiber composite elastomer E passes through the annular die 2 to form a cylindrical shape. The short fibers of the short fiber composite elastomer E are oriented in the circumferential direction. Reference numerals 3, 4 and 5 are a screw rod, a washer and a nut for connecting the outer die 1A and the inner die 1B, respectively.
Assuming that the entrance radius of the expansion die 1 is R 1 and the exit radius is R 0 , the relationship of R 0 / R 1 ≦ 7.0 holds, as will be described later.
（発明が解決しようとする課題） ところが、この方法の場合は、円筒状体を切り開いてシ
ートを形成するため、円筒状体の軸方向がＸ方向、円周
方向がＹ方向、厚さ方向がＺ方向となるが、その配向率
が、 Ｘ方向:10〜15％ Ｙ方向:80〜85％ Ｚ方向:5〜10％ となり、上述したカレンダ圧延方法による場合よりも、
製造は簡略化できるが、高い配向率を得る点では10％程
度劣る。(Problems to be Solved by the Invention) However, in the case of this method, since the cylindrical body is cut open to form a sheet, the axial direction of the cylindrical body is the X direction, the circumferential direction is the Y direction, and the thickness direction is Although it is in the Z direction, the orientation ratio is in the X direction: 10 to 15%, in the Y direction: 80 to 85%, in the Z direction: 5 to 10%, more than in the case of the above-described calendar rolling method.
Although the manufacturing can be simplified, it is inferior by about 10% in obtaining a high orientation rate.
そのため、伝動ベルトの底ゴムとして用いた場合、一部
の高負荷条件下の使用では、側圧に耐えられず、早期に
破損に至るおそれがある。また、伝動効率が劣るなどの
問題も発生した。Therefore, when it is used as the bottom rubber of the transmission belt, it cannot withstand the lateral pressure under some high load conditions and may be damaged early. In addition, problems such as poor transmission efficiency occurred.
本発明はかかる点に鑑みてなされたもので、上記方法に
おいて、円周方向の配向率を高めることを目的とする。The present invention has been made in view of the above points, and an object thereof is to increase the orientation ratio in the circumferential direction in the above method.
（課題を解決するための手段） 請求項（１）の発明は、短繊維が混合された短繊維複合
エラストマーを、内周面及び外周面とこれら内外周面間
にあって上記短繊維複合エラストマーにより実質的に充
填される環状溝とを有する拡張ダイの該環状溝を通じて
円周方向に伸長させて押出し、短繊維を円周方向に配向
させる短繊維複合エラストマーの方法であって、上記拡
張ダイの環状溝から押出される短繊維複合エラストマー
を、上記拡張ダイから押出された後、さらに円周方向に
徐々に伸長させる構成とする。(Means for Solving the Problem) The invention of claim (1) provides a short fiber composite elastomer, in which short fibers are mixed, between the inner peripheral surface and the outer peripheral surface and between the inner peripheral surface and the short fiber composite elastomer. A method for a short fiber composite elastomer for orienting short fibers in the circumferential direction by extending and extruding circumferentially through the annular groove of an expansion die having an annular groove that is filled with The short fiber composite elastomer extruded from the groove is extruded from the expansion die and then gradually extended in the circumferential direction.
請求項（２）の発明は、短繊維が混合された短繊維複合
エラストマーを、内周面及び外周面とこれら内外周面間
にあって上記短繊維複合エラストマーにより実質的に充
填される環状溝とを有する拡張ダイの該環状溝を通じて
円周方向に伸長させて押出し、短繊維を円周方向に配向
させる短繊維複合エラストマーの製造装置であって、上
記拡張ダイの出口側に上記環状溝の内径と略等しい径を
有しかつ環状溝と同軸状である外周面を有する拡大アダ
プタが接続され、該拡大アダプタの外周面は、適当な勾
配をもって径が拡大している構成とする。The invention of claim (2) provides a short fiber composite elastomer in which short fibers are mixed, and an inner peripheral surface and an outer peripheral surface, and an annular groove which is substantially filled with the short fiber composite elastomer between the inner peripheral surface and the outer peripheral surface. A device for producing a short fiber composite elastomer in which a short fiber is orientated in the circumferential direction through the annular groove of an expansion die and is oriented in the circumferential direction, and the inner diameter of the annular groove is on the outlet side of the expansion die. An expansion adapter having an outer peripheral surface that has a substantially equal diameter and is coaxial with the annular groove is connected, and the outer peripheral surface of the expansion adapter has a diameter that expands with an appropriate gradient.
（作用） 請求項（１）の発明によれば、拡張ダイの環状溝から押
出される円筒状の短繊維複合エラストマーを、拡張ダイ
から押出した後、さらに円周方向に徐々に伸長させる。(Operation) According to the invention of claim (1), the cylindrical short fiber composite elastomer extruded from the annular groove of the expansion die is extruded from the expansion die, and then gradually expanded in the circumferential direction.
請求項（２）の発明によれば、拡張ダイの環状溝を通じ
て押出される間に短繊維複合エラストマーの短繊維が円
周方向に配向され、ダイ内で該エラストマーにかかる圧
力が解放した状態になるまでダイ出口で拡大アダプター
の外周面により円周方向に伸長され、かつ縮小が少なく
なるので、円周方向の配向率が高められる。According to the invention of claim (2), the short fibers of the short fiber composite elastomer are oriented in the circumferential direction while being extruded through the annular groove of the expansion die, and the pressure applied to the elastomer in the die is released. Until then, it is expanded in the circumferential direction by the outer peripheral surface of the expansion adapter at the die exit, and the reduction is reduced, so that the orientation ratio in the circumferential direction is increased.
（実施例） 以下、本発明の実施例を図面に沿って詳細に説明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図において、11は拡張ダイ１に連結された拡大アダ
プタで、拡張ダイ１より押出された円筒状の短繊維複合
エラストマーＥが外周面11aに沿って流れるように構成
されており、拡張ダイ１より押出された円筒状の短繊維
複合エラストマーＥを円周方向にさらに伸長するように
なっている。拡大アダプタ11の外周面は、拡張ダイ１の
環状溝２と同軸状で、適当な勾配をもって半径が拡大し
ており、この拡大アダプタ３による円周方向の伸長によ
り、短繊維複合エラストマーＥの円周方向の短繊維の配
向率が、拡張ダイ１のみによる場合よりもさらに高めら
れる。In FIG. 1, reference numeral 11 is an expansion adapter connected to the expansion die 1, and is configured so that the cylindrical short fiber composite elastomer E extruded from the expansion die 1 flows along the outer peripheral surface 11a. The cylindrical short fiber composite elastomer E extruded from No. 1 is further extended in the circumferential direction. The outer peripheral surface of the expansion adapter 11 is coaxial with the annular groove 2 of the expansion die 1 and has a radius that expands with an appropriate gradient. The expansion of the expansion adapter 3 in the circumferential direction causes the short fiber composite elastomer E to have a circular shape. The orientation rate of the short fibers in the circumferential direction is further increased as compared with the case where only the expansion die 1 is used.
上記拡大アダプタ２は、その外周面11aが拡張ダイ１の
環状溝２の出口の内径と略同径かつ同軸状で、徐々に半
径が大きくなる方向に直線的に傾斜しているテーパ部11
Aと、該テーパ部11Aの最大外径と同径で該テーパー部11
Aに連設された定径部11Bとからなる。The outer peripheral surface 11a of the expansion adapter 2 is substantially the same diameter as the inner diameter of the outlet of the annular groove 2 of the expansion die 1 and is coaxial, and the taper portion 11 is linearly inclined in a direction in which the radius gradually increases.
A and the tapered portion 11 having the same outer diameter as the maximum outer diameter of the tapered portion 11A.
It consists of a constant-diameter portion 11B connected to A.
上記拡大アダプタ11は、短繊維複合エラストマーＥをさ
らに円周方向に徐々に伸長させる構造であればよいが、
第１図において、拡大アダプタ11の最大半径Ｄと軸線方
向長さＬが長くなると、押し出される円筒状の短繊維複
合エラストマーＥの円周方向の収縮によって短繊維複合
エラストマーＥが途中で詰まって押出しできなくなるお
それがあることから、拡大アダプタ11の最大半径Ｄと軸
線方向長さＬとは、短繊維のゴム配合、押出し時の温
度、粘度、円筒状の短繊維複合エラストマーＥの厚さ、
押出しスピード等によって決定する必要がある。The expansion adapter 11 may have a structure in which the short fiber composite elastomer E is gradually extended in the circumferential direction,
In FIG. 1, when the maximum radius D and the axial length L of the expansion adapter 11 increase, the cylindrical short fiber composite elastomer E extruded is contracted in the circumferential direction, and the short fiber composite elastomer E is clogged in the middle and extruded. Since the maximum radius D and the axial length L of the expansion adapter 11 may not be achieved, the rubber blending of short fibers, the temperature during extrusion, the viscosity, the thickness of the cylindrical short fiber composite elastomer E,
It needs to be determined by the extrusion speed and the like.
上記のように構成すれば、短繊維の配向は次の２段階で
行われ、短繊維複合エラストマーの成形が行われること
なる。With the above configuration, the orientation of the short fibers is performed in the following two stages, and the short fiber composite elastomer is molded.
（１）第１段階 拡張ダイ１でもって円周方向（Ｙ方向）の繊維配向率を
80〜85％とする。(1) First stage Use the expansion die 1 to measure the fiber orientation ratio in the circumferential direction (Y direction).
80 to 85%
押出し機から出た該押出し機の出口形状に対応する断面
形状の円筒状短繊維複合エラストマーＥは、拡張ダイ１
の入口2A（断面積mi）から拡張ダイ１の環状溝２内に入
り出口2B（断面積m0）に向かって円周方向に流れながら
成形される。したがって、入口2Aで短繊維複合エラスト
マーＥの短繊維がいずれの方向に配向されていても、流
れるにしたがって、m0＞miの関係から円周方向に引き伸
ばされて配向される。A cylindrical short fiber composite elastomer E having a cross-sectional shape corresponding to the exit shape of the extruder, which is discharged from the extruder, is formed by an expansion die 1
From the inlet 2A (sectional area m i ) of the expansion die 1 into the annular groove 2 of the expansion die 1 toward the outlet 2B (sectional area m 0 ) while flowing in the circumferential direction. Therefore, no matter which direction the short fibers of the short fiber composite elastomer E are oriented at the inlet 2A, the short fibers are stretched and oriented in the circumferential direction from the relationship of m 0 > m i as they flow.
しかしながら、拡張ダイ１の流路抵抗による配向の乱れ
や、流路中のエラストマー流れが均一ではなく、完全に
円周方向に配向されない。また、（拡張ダイ１の内側ダ
イ1Bの半径＋シート厚さ）×２πを基準として２〜2.5
％程度の円筒状の短繊維複合エラストマーＥの円周方向
の縮みがあり、この縮みも円周方向の短繊維の配向が乱
れる。具体的には押出出口直後の円筒体は押出中の内部
圧力や温度によって残留応力があってダイ膨張が発生
し、円筒体の円周方向が縮む現象があって配向が乱れる
原因となる。そのため、R0／Ri比率が7.0で極限に達
し、7.0以下では円周方向以外の配向成分が現れる。However, the orientation of the expansion die 1 is disturbed by the flow path resistance, the elastomer flow in the flow path is not uniform, and the expansion die 1 is not completely oriented in the circumferential direction. 2 to 2.5 based on (radius of inner die 1B of expansion die 1 + sheet thickness) x 2π.
%, There is shrinkage in the circumferential direction of the cylindrical short fiber composite elastomer E, and this shrinkage also disturbs the orientation of the short fibers in the circumferential direction. Specifically, the cylindrical body immediately after the extrusion outlet has a residual stress due to the internal pressure and temperature during the extrusion to cause die expansion, which causes a phenomenon that the circumferential direction of the cylindrical body is contracted and causes the orientation to be disturbed. Therefore, the R 0 / R i ratio reaches the limit at 7.0 and below 7.0, orientation components other than the circumferential direction appear.
R0／Ri＝7.0での配向率が Ｘ方向:10〜15％ Ｙ方向:80〜85％ Ｚ方向:5〜10％ となる。The orientation ratio at R 0 / R i = 7.0 is X direction: 10 to 15%, Y direction: 80 to 85%, Z direction: 5 to 10%.
（２）拡大アダプタ11による配向率の上昇 円周方向に短繊維が配向され押出された円筒状の短繊維
複合エラストマーＥを拡大アダプタ11でさらに円周方向
（Ｙ方向）に引き伸ばして、より円周方向の配向性を高
める。伸長率によって、配向率は次の表に示すように変
化する。(2) Increasing the orientation ratio by the expansion adapter 11 The cylindrical short fiber composite elastomer E in which the short fibers are oriented in the circumferential direction and extruded is further expanded in the circumferential direction (Y direction) by the expansion adapter 11 to make a more circular shape. Improves orientation in the circumferential direction. Depending on the extension rate, the orientation rate changes as shown in the following table.
なお、拡大アダプタ11を用いることによって、短繊維複
合エラストマーＥが徐々に拡大されることから、前述し
た円周方向の縮みが順次良化される。すなわち、例えば
伸長率2.5％で押出すと、もともと拡張ダ１を出た段階
で円周方向に縮みがあることから、結果として縮みのな
い筒状の短繊維複合エラストマーＥが成形される。 Since the short fiber composite elastomer E is gradually expanded by using the expansion adapter 11, the shrinkage in the circumferential direction described above is sequentially improved. That is, for example, when extruding at an elongation rate of 2.5%, there is originally shrinkage in the circumferential direction at the stage of exiting the expander 1, and as a result, a tubular short fiber composite elastomer E without shrinkage is formed.
このように、拡張ダイ１と拡大アダプタ11とを組合わせ
て用いることによって、円周方向の短繊維の配向率が改
良され、従来周知のカレンダー圧延法による場合と同等
になるため、例えば伝動ベルトの底ゴムとして用いても
十分な機能を発揮できる。As described above, by using the expansion die 1 and the expansion adapter 11 in combination, the orientation ratio of the short fibers in the circumferential direction is improved and becomes equal to that in the conventionally known calender rolling method. Even when used as a bottom rubber, it can exert a sufficient function.
続いて、上記拡大アダプタ11の軸線方向長さＬと最大半
径Ｄとの比L/Dについて行った試験について説明する。Next, a test performed on the ratio L / D between the axial length L of the expansion adapter 11 and the maximum radius D will be described.
《押出しに用いた短繊維複合ゴム配合》 クロロプレンゴム 100重量部 FEFカーボン 40 S.A. １ MgO ５ ZnO ５ 老化防止剤 ３ ナイロン短繊維（3mm） 10 セルロース繊維 10 計174重量部 《試験に用いた押出し機》 L/D＝12,D＝90mm 《拡大アダプタ》 拡張ダイ：内側ダイの外径200mm 押出したゴムシートの厚さ3.0〜5.5mm 《伸長率と、拡大アダプタの比L/Dと、短繊維複合ゴム
の押出しの挙動》 （発明の効果） 請求項（１）の発明は、上記のように、拡張ダイの環状
溝から押出される円筒状の短繊維複合エラストマーを、
拡張ダイから押出した後、さらに円周方向に徐々に伸長
させるようにしているので、円周方向の短繊維の配向率
を高めることができる。<< Short fiber composite rubber compound used for extrusion >> 100 parts by weight of chloroprene rubber FEF carbon 40 SA 1 MgO 5 ZnO 5 Antiaging agent 3 Nylon short fibers (3 mm) 10 Cellulose fiber 10 Total 174 parts by weight << Extruder used for the test 》 L / D ＝ 12, D ＝ 90mm 《Expansion adapter》 Expansion die: Inner die outer diameter 200mm Extruded rubber sheet thickness 3.0 to 5.5mm 《Extension rate, expansion adapter ratio L / D and short fiber Extrusion behavior of composite rubber >> (Effect of the Invention) As described above, the invention of claim (1) provides a cylindrical short fiber composite elastomer extruded from the annular groove of the expansion die,
Since the fibers are extruded from the expansion die and then gradually expanded in the circumferential direction, the orientation ratio of the short fibers in the circumferential direction can be increased.
請求項（２）の発明は、拡張ダイの環状溝にて円周方向
に配向された短繊維を、さらに拡大アダプタの外周面に
よりさらに円周方向に伸長させるようにしているので、
円周方向の短繊維の配向率を、拡張ダイと拡大アダプタ
とによって２段階に高めることができる。According to the invention of claim (2), the short fibers oriented in the circumferential direction in the annular groove of the expansion die are further extended in the circumferential direction by the outer peripheral surface of the expansion adapter.
The orientation ratio of the short fibers in the circumferential direction can be increased in two steps by the expansion die and the expansion adapter.
第１図は本発明の実施例である短繊維複合エラストマー
の製造装置の要部断面図である。 第２図は従来例を示し、第２図は第１図と同様の図であ
る。 Ｅ……短繊維複合エラストマー １……拡張ダイ 1A……外側ダイ 1B……内側ダイ ２……環状溝 11……拡大アダプタ 11a……外周面FIG. 1 is a sectional view of an essential part of an apparatus for producing a short fiber composite elastomer which is an embodiment of the present invention. FIG. 2 shows a conventional example, and FIG. 2 is a view similar to FIG. E ... Short fiber composite elastomer 1 ... Expansion die 1A ... Outer die 1B ... Inner die 2 ... Annular groove 11 ... Expansion adapter 11a ... Outer peripheral surface
Claims (2)
ーを、内周面及び外周面とこれら内外周面間にあって上
記短繊維複合エラストマーにより実質的に充填される環
状溝とを有する拡張ダイの該環状溝を通じて円周方向に
伸長させて押出し、短繊維を円周方向に配向させる短繊
維複合エラストマーの方法であって、 上記拡張ダイの環状溝から押出される円筒状の短繊維複
合エラストマーを、上記拡張ダイから押し出した後、さ
らに円周方向に徐々に伸長させることを特徴とする短繊
維複合エラストマーの製造方法。1. An expansion die having a short fiber composite elastomer having short fibers mixed therein, having an inner peripheral surface and an outer peripheral surface, and an annular groove between the inner peripheral surface and the inner peripheral surface and substantially filled with the short fiber composite elastomer. A method of a short fiber composite elastomer in which a short fiber is stretched in the circumferential direction through the annular groove and extruded to orient short fibers in the circumferential direction, wherein a cylindrical short fiber composite elastomer extruded from the annular groove of the expansion die is used. A method for producing a short fiber composite elastomer, which comprises extruding from the expansion die and then gradually extending in the circumferential direction.
ーを、内周面及び外周面とこれら内外周面間にあって上
記短繊維複合エラストマーにより実質的に充填される環
状溝とを有する拡張ダイの該環状溝を通じて円周方向に
伸長させて押出し、短繊維を円周方向に配向させる短繊
維複合エラストマーの製造装置であって、 上記拡張ダイの出口側に上記環状溝の内径と略等しい径
を有しかつ環状溝と同軸状である外周面を有する拡大ア
ダプタが接続され、該拡大アダプタの外周面は、適当な
勾配をもって径が拡大していることを特徴とする短繊維
複合エラストマーの製造装置。2. An expansion die having a short fiber composite elastomer having short fibers mixed therein, having an inner peripheral surface and an outer peripheral surface, and an annular groove between the inner peripheral surface and the outer peripheral surface and substantially filled with the short fiber composite elastomer. A device for producing a short-fiber composite elastomer, which extends in the circumferential direction through the annular groove and is extruded to orient short fibers in the circumferential direction, wherein a diameter substantially equal to the inner diameter of the annular groove is provided on the outlet side of the expansion die. An expansion adapter having an outer peripheral surface that is coaxial with the annular groove is connected, and the outer peripheral surface of the expansion adapter has a diameter that expands with an appropriate slope, and a device for producing a short fiber composite elastomer. .
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2195443A JPH0688303B2 (en) | 1990-07-24 | 1990-07-24 | Method and apparatus for producing short fiber composite elastomer |
| CA002046722A CA2046722A1 (en) | 1990-07-12 | 1991-07-10 | Method for manufacturing fiber reinforced elastic sheet, apparatus for manufacturing the same and mold to be used |
| US07/727,967 US5281380A (en) | 1990-07-12 | 1991-07-10 | Method for manufacturing fiber reinforced elastic sheet, apparatus for manufacturing the same and mold to be used |
| DE69113552T DE69113552T2 (en) | 1990-07-12 | 1991-07-12 | Process for the production of a fiber-reinforced elastic film, device for its production and tool to be used in the process. |
| EP91111621A EP0468306B1 (en) | 1990-07-12 | 1991-07-12 | Method for manufacturing fiber reinforced elastic sheet, apparatus for manufacturing the same and mold to be used |
| EP95100058A EP0657272B1 (en) | 1990-07-12 | 1991-07-12 | Method for manufacturing fiber reinforced elastic sheet, apparatus for manufacturing the same and mold to be used |
| DE69131720T DE69131720T2 (en) | 1990-07-12 | 1991-07-12 | Process for the production of a fiber-reinforced elastic film, device for its production and tool to be used |
| US08/238,338 US5522719A (en) | 1990-07-12 | 1994-05-04 | Apparatus for manufacturing fiber reinforced elastic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2195443A JPH0688303B2 (en) | 1990-07-24 | 1990-07-24 | Method and apparatus for producing short fiber composite elastomer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0480013A JPH0480013A (en) | 1992-03-13 |
| JPH0688303B2 true JPH0688303B2 (en) | 1994-11-09 |
Family
ID=16341153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2195443A Expired - Fee Related JPH0688303B2 (en) | 1990-07-12 | 1990-07-24 | Method and apparatus for producing short fiber composite elastomer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0688303B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7122090B2 (en) | 2002-06-28 | 2006-10-17 | Sumitomo Rubber Industries, Ltd. | Process for preparing rubber sheet and tread and studless tire using same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119050B2 (en) * | 1992-09-24 | 1995-12-20 | バンドー化学株式会社 | Flat short fiber mixed elastomer manufacturing equipment |
| CN103331801B (en) * | 2013-06-18 | 2015-12-02 | 泗阳蓝阳托盘设备科技有限公司 | Taper is inside established to squeeze hole bar type plant fiber extruder |
| CN112743795A (en) * | 2020-12-22 | 2021-05-04 | 中国兵器装备集团自动化研究所 | Prevent remaining extruder |
-
1990
- 1990-07-24 JP JP2195443A patent/JPH0688303B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7122090B2 (en) | 2002-06-28 | 2006-10-17 | Sumitomo Rubber Industries, Ltd. | Process for preparing rubber sheet and tread and studless tire using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0480013A (en) | 1992-03-13 |
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