JPS61157335A - Apparatus for preparing fine powdery stock material in dry state by dispersing and mixing carbon staple fiber in monofilament state - Google Patents
Apparatus for preparing fine powdery stock material in dry state by dispersing and mixing carbon staple fiber in monofilament stateInfo
- Publication number
- JPS61157335A JPS61157335A JP27429584A JP27429584A JPS61157335A JP S61157335 A JPS61157335 A JP S61157335A JP 27429584 A JP27429584 A JP 27429584A JP 27429584 A JP27429584 A JP 27429584A JP S61157335 A JPS61157335 A JP S61157335A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- rotating body
- fine
- fine projections
- state
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/404—Pre-treatment of fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Accessories For Mixers (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Description
【発明の詳細な説明】
(技術分野)
本発明はカーボン短繊維が単繊維状に均一に分繊混合し
た乾状態の微粉体原材料製造装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an apparatus for producing a dry fine powder raw material in which short carbon fibers are uniformly split and mixed into single fibers.
(従来技術)
ピッチ等の原料から作られた径約5μ〜20μ程度のカ
ーボン繊維及びこの繊維を100 m程度までの各種の
長さに切断した短繊維は公知である。(Prior Art) Carbon fibers having a diameter of about 5 μm to 20 μm made from raw materials such as pitch, and short fibers obtained by cutting these fibers into various lengths of up to about 100 m are known.
また、上記カーボン短繊維を均一に分散混合して賦形し
た各種モルタル、コンクリート、ガラス、金属、樹脂等
の成形品ないし部材が耐熱性や化学的安定性を損うこと
なく機械的強度を著しく増大することも公知である。In addition, molded products or parts such as various mortars, concrete, glass, metals, resins, etc., made by uniformly dispersing and mixing the above-mentioned short carbon fibers, have significantly increased mechanical strength without impairing heat resistance or chemical stability. It is also known to increase.
しかし、この種製品を作るための賦形前の粉粒ないし流
動状原料に、カーボン短繊維を均一状態においては、多
少の振動、震盪、攪拌その他の力が加わることによって
、あたかも短い細毛を掃き寄せたりしたときのように、
隣り合つた短繊維同士が互いに交叉し重なり合って、柔
かく綿状の小塊状の凝集体をつくる傾向がある。However, when the short carbon fibers are in a uniform state in the powder or fluid raw material before being shaped to make this type of product, when some vibration, shaking, stirring, or other force is applied, it appears as if short fine hairs were swept away. Like when I sent it to you,
Adjacent short fibers tend to cross and overlap each other, forming soft, cottony, nodular aggregates.
この凝集体における各短縁相互間の付着結合は大して強
いものではないが、手指では容易にもみほぐせないもの
である。しかし、カーボン短繊維の上述のような性質は
、これを成形品の賦形前における粉状または流動状の原
料中に添加し均一に分散混合させようとするとき大きな
欠点となる。Although the adhesive bonds between the short edges of this aggregate are not very strong, they cannot be easily loosened with fingers. However, the above-mentioned properties of short carbon fibers are a major drawback when they are added to a powdered or fluid raw material before being shaped into a molded article and uniformly dispersed and mixed.
なぜなら、カーボン短繊維を前述のような多数の小塊状
の凝集体を含んだ集合物の状態のままで成形品原料に混
入すると、この凝集塊状物は、その後の原料の攪拌、混
練その他の尋常の分散手段によっては単繊維ごとに分離
されず、かえって、一旦分離したカーボン短繊維ですら
成形品原料中で小球状に再凝集してしまい、したがって
原料中にカーボン短繊維が相互に分離した単繊維として
均一分散した状態のものを得られないからである。This is because if short carbon fibers are mixed into the raw material for a molded product in the form of an aggregate containing a large number of small aggregates as described above, these aggregates will be removed during subsequent stirring, kneading, and other operations of the raw material. Depending on the dispersion method used, the carbon short fibers are not separated into single fibers, and even the once separated short carbon fibers re-agglomerate into small spheres in the raw material for the molded product. This is because fibers in a uniformly dispersed state cannot be obtained.
そのため、前述したカーボン短繊維を均一に混入したモ
ルタルやスレート板又はコンクリート成形品打設物等の
原料を得るには極めて繁雑な方法を用いなければならな
い。すなわち、カーボン短繊維の集合物をセメントと混
練すべき水等の適当な液状物又はセメントを含む流動状
態の原料中に投入し、特殊のミキサー等によって少量ず
つ攪拌し、流動状の均一分散固液混合物とする操作を経
ることが必要となるのである。Therefore, extremely complicated methods must be used to obtain raw materials for mortar, slate plates, cast concrete molded products, etc. in which the short carbon fibers described above are uniformly mixed. That is, an aggregate of short carbon fibers is put into a suitable liquid material such as water to be mixed with cement, or into a fluidized raw material containing cement, and is stirred little by little with a special mixer to form a uniformly dispersed solid in a fluidized state. It is necessary to undergo an operation to form a liquid mixture.
湿式法とでもいうべき上記方法が非能率的で連速である
ことは言うをまたない。Needless to say, the above method, which can be called a wet method, is inefficient and continuous.
近時この種の成形材料は各種の固形材料添加物を混合し
たものをワン・パッケージにして流通させ、必要に応じ
て水等と混練すれば、それだけでモルタルを形成するよ
うになっている。Recently, this type of molding material has come to be distributed as a single package containing a mixture of various solid material additives, and if necessary, it can be kneaded with water or the like to form mortar.
いわゆる複合材料のプレミックス品である。This is a so-called composite material premix product.
、!:C7′d“・“!Lla’i!d’690f・”
−51ン短繊維を添加した固形粉粒状複合材料のワン・
□パッケージ製品を作ることはできず、仮に作っ
ても時間の経過とともにカーボン短繊維が凝集するので
使用に供し得なくなる。これは極めて不便であり、時代
の趨勢に合わない。,! :C7'd"・"! Lla'i! d'690f・”
- One solid powder/granular composite material with added short fibers
□Package products cannot be made, and even if they were made, the short carbon fibers would aggregate over time, making them unusable. This is extremely inconvenient and does not match the trends of the times.
以上のような次第で、カーボン短繊維混入モルタル、ス
レート板、セメント瓦ないしコンクリート成形品につい
ては、その優れた特性に着目した大きな期待と需要があ
るのに、その現実の実施は微々たるものであるというの
が現状である。As described above, although there are great expectations and demands for mortar containing short carbon fibers, slate boards, cement tiles, and concrete molded products due to their excellent properties, the actual implementation of these products is negligible. The current situation is that there is.
そこで、上記セメント粉末等を含む粉粒状固形原料中に
乾状態で始めからカーボン短繊維の各単繊維が相互に比
較的十分に分離し分散混在した複合セメントを得ること
ができれば好都合である。また、同様に、各種の溶融ガ
ラス、溶融樹脂や未硬化樹脂原料中に上記のような乾状
態でカーボン短繊維を単繊維に解繊して混入することが
できれば益するところは犬である。Therefore, it would be advantageous if a composite cement could be obtained in which each single fiber of short carbon fibers is relatively sufficiently separated from each other and dispersed together in a powdery solid raw material containing the above-mentioned cement powder etc. in a dry state. Similarly, it would be beneficial if short carbon fibers could be defibrated into single fibers and mixed into various molten glasses, molten resins, and uncured resin raw materials in a dry state as described above.
そのためには、集合し凝集したカーボン短繊維の塊を液
状媒質を用いず、機械的に、いわば乾式法により単繊維
ごとに分離し、又は凝集傾向を阻止して、分離した単繊
維の状態のまま原料に均入寸7.Iシ、要があみ。とこ
ろがこのようなカーボン短繊維の乾式法による解繊は従
来から大企業が試みながら遂に成功した例をきかない。In order to do this, it is necessary to mechanically separate the aggregated aggregated short carbon fibers into single fibers by a so-called dry method without using a liquid medium, or to prevent the agglomeration tendency and to separate the separated single fibers. Evenly distributed size for raw materials 7. Ishi, Kaname Gaami. However, such dry defibration of short carbon fibers has been attempted by large companies, but none have succeeded.
(目的)
本発明はカーボン短繊維を単繊維状に均一に分散混合し
た乾状態の微粉体原材料を得る装置を提供することを目
的としている。(Objective) The object of the present invention is to provide an apparatus for obtaining a dry fine powder raw material in which short carbon fibers are uniformly dispersed and mixed in the form of single fibers.
(構成)
本発明は上記目的を達成するため、表面に多数の細突起
を小間隔で立設した1対の上部回転体を両細突起先端が
僅の間隙を存して対向部が下方に相対運動する如く配設
し、その上方にカーボン短繊維凝集体供給装置を配設し
、周速度のおそい上部回転体の下方には表面に多数の細
突起を小間隔で立設した下部回転体を両細突起が僅の間
隙を存するか存しない状態で対向部が同方向に回転する
如く対向配設し、下部回転体の両側には対向部が下方に
回転するブラシロールを夫々配設し、下部回転体とブラ
シロール間を通過して分繊されたカーボン短繊維を微粉
体原材料と混合する手段を備えたことを特徴とするもの
である。以下実施例に基づいて詳細に説明する。1は肉
厚スチール製円筒形の上部回転体で外径40 cm 、
巾80crnであり、2は同様の上部回転体で外径20
G、巾80crnで雨上部回転体1,20表面には先端
が尖鋭三角状で弾性を有しない長さ6trm程度の細突
起3,4がピッチ3WIで固定され、細突起3,4の先
端は1w程度の間隔を存して対向されている。上部回転
体1は毎分400回転の速度で反時計方向に、上部回転
体2は毎分20回転の速度で時計方向に回転するように
配設されている。1対の上部回転体1.2の対向部上方
にはホッパー5が配設され、径約15μ、長さ約3mの
カーボン短繊維が大小不揃いの小塊綿状に凝集したカー
ボン短繊維凝集体6が入れられている。上部回転体2の
下方には表面に多数の細突起8を小間隔で立設した下部
回転体7を両細突起4,8が僅の間隙を存するか存しな
い状態で対向部が同方向に回転するよう対向配設してい
る。下部回転体7は外径20 cm 、巾80儒で毎分
15回転するようになっている。9は上部回転体1と下
部回転体7間に配設したブラシロール、10は上部回転
体2と下部回転体7の外側間に配設したブラシロール、
11はブラシロール10と下部回転体1間に配設したブ
ラシロールで何れも表面に長さ2011111の多数の
弾性細線12,13.14を立設しその先端は夫々の対
向部の細突起に僅に交錯するか交錯しないか、僅に間隙
を存するようになっていて、ロールブラシ9は毎分20
0回転で、ロールブラシ10は毎分20回転で、ロール
ブラシ11は毎分80回転で下部回転体7との対向部が
何れも下方に向けて回転するようになっている。15は
セメントモルタル、混和剤等の微粉体原材料を投入した
ミキサーである。(Structure) In order to achieve the above object, the present invention has a pair of upper rotating bodies each having a large number of fine protrusions erected at small intervals on the surface thereof. A lower rotating body with a slow circumferential speed and a lower rotary body with a large number of thin protrusions erected at small intervals on its surface is located below the upper rotating body with a slow circumferential speed. are arranged oppositely so that the opposing parts rotate in the same direction with a slight gap between the two thin protrusions, and brush rolls whose opposing parts rotate downward are arranged on both sides of the lower rotating body. The present invention is characterized by comprising a means for mixing the split carbon short fibers passed between the lower rotating body and the brush roll with a fine powder raw material. A detailed explanation will be given below based on examples. 1 is a thick-walled steel cylindrical upper rotating body with an outer diameter of 40 cm;
The width is 80 crn, and 2 is a similar upper rotating body with an outer diameter of 20 crn.
G, width 80 crn, thin protrusions 3, 4 with sharp triangular tips and no elasticity and a length of about 6 trm are fixed on the surface of the rain upper rotor 1, 20 at a pitch of 3WI, and the tips of the thin protrusions 3, 4 are They face each other with an interval of about 1W. The upper rotating body 1 is arranged to rotate counterclockwise at a speed of 400 revolutions per minute, and the upper rotating body 2 is arranged to rotate clockwise at a speed of 20 revolutions per minute. A hopper 5 is disposed above the opposing part of the pair of upper rotating bodies 1.2, and collects short carbon fiber aggregates in which short carbon fibers with a diameter of about 15 μm and a length of about 3 m are aggregated into small lumps of irregular size. 6 is included. Below the upper rotating body 2, a lower rotating body 7 having a large number of thin protrusions 8 erected at small intervals on its surface is installed, with the opposing parts facing in the same direction with both thin protrusions 4 and 8 having a slight gap or no gap. They are arranged facing each other so that they rotate. The lower rotating body 7 has an outer diameter of 20 cm, a width of 80 mm, and rotates 15 times per minute. 9 is a brush roll disposed between the upper rotary body 1 and the lower rotary body 7; 10 is a brush roll disposed between the outer sides of the upper rotary body 2 and the lower rotary body 7;
Reference numeral 11 denotes a brush roll disposed between the brush roll 10 and the lower rotary body 1, and a large number of thin elastic wires 12, 13, and 14 with a length of 2011111 are erected on the surface of each brush roll, and the tips thereof are attached to thin protrusions on the opposing parts. The roll brushes 9 are designed to intersect slightly or not to intersect, or to have a slight gap, and the roll brush 9 moves at a rate of 20 per minute.
At zero rotation, the roll brush 10 rotates at 20 rotations per minute, and the roll brush 11 rotates at 80 rotations per minute, so that both of the parts facing the lower rotating body 7 rotate downward. 15 is a mixer into which fine powder raw materials such as cement mortar and admixtures are charged.
次に作用について説明する。ホッパー5より1対0上部
回転体1・2間に供給されたカー5 。Next, the effect will be explained. The car 5 is supplied from the hopper 5 between the 1:0 upper rotating bodies 1 and 2.
ン短繊維凝集体6は周速度がおそい上部回転体2の細突
起4におさえられ乍ら周速度が早い上部回転体lの細突
起4でかきほぐされ大部分が単繊維状に分繊されて下方
に落下する。上部回転体1の細突起3間に付着したま\
のカーボン短繊維はブラシロール9でかきとられ、充分
に分繊され下方に落下するカーボン短繊維と一緒になり
下部回転体7の細突起8とブラシロール9の弾性細線1
2間を通過する時、振動する弾性細線12により完全に
一本ずつに分繊されてミキサー1゛5内に落下する。上
部回転体1,2により充分に分繊されなかったカーボン
短繊維の小塊は周速度のおそい上部回転体2の方に押し
つけられ、周速度のよりおそい下部回転体7の細突起8
でおさえられ乍ら上部回転体2の細突起4でかきほぐさ
れ乍ら外側に送られる。そしてブラシロール10の弾性
細線13及びブラシロール11の弾性細線14と下部回
転体7の細突起8間を通過する時、振動する弾性細線1
1、x4により警く程完全に一本ずつの単繊維状に分繊
されてミキサー15内に落下する。The short fiber aggregates 6 are held down by the thin protrusions 4 of the upper rotating body 2, which has a slow circumferential speed, and are loosened by the thin protrusions 4 of the upper rotary body 1, which has a fast circumferential speed, and most of them are split into single fibers. and fall downward. It was attached between the thin protrusions 3 of the upper rotating body 1.
The short carbon fibers are scraped off by the brush roll 9, and are sufficiently separated and together with the short carbon fibers falling downward, the fine protrusions 8 of the lower rotating body 7 and the elastic fine wires 1 of the brush roll 9 are formed.
When the fibers pass between the two, the vibrating elastic fine wires 12 completely separate the fibers into individual fibers, and the fibers fall into the mixer 1-5. Small pieces of short carbon fibers that have not been sufficiently separated by the upper rotating bodies 1 and 2 are pushed toward the upper rotating body 2, which has a slower circumferential speed, and are pushed toward the thin protrusions 8 of the lower rotating body 7, which has a slower circumferential speed.
While being held down by the upper rotating body 2, it is loosened by the thin projections 4 of the upper rotary body 2 and sent to the outside. When passing between the elastic thin wire 13 of the brush roll 10, the elastic thin wire 14 of the brush roll 11, and the thin protrusion 8 of the lower rotating body 7, the elastic thin wire 1 vibrates.
1, x4, the fibers are separated into single fibers one by one, and fall into the mixer 15.
そしてミキサー15内に投入されているセメントモルタ
ル、混和剤等の微粉体原材料中に均一に:/FLA一式
り耳凝焦ナスとシカ;浄m−なお下方のブラシロール1
1を除いたり、ミキサー〇代シに下部回転体の下方両側
方から微粉体原材料を分繊されて落下するカーボン短繊
維に噴射して混合してもよい。Then, it is uniformly mixed into the fine powder raw materials such as cement mortar and admixtures that are put into the mixer 15.
1 may be omitted, or the fine powder raw material may be mixed by injecting the fine powder raw material into the separated and falling short carbon fibers from both sides below the lower rotary body in the mixer ○.
(効果)
本発明によると表面に多数の細突起を小間隔で立設した
1対の上部回転体を両細突起先端が僅の間隙を存して対
向部が下方に相対運動する如く配設し、その上方にカー
ボン短繊維凝集体供給装置を配設し、周速度のおそい上
部回転体の下方には表面に多数の細突起を小間隔で立設
゛した下部回転体を両細突起が僅の間隙を存す
るか存しない状態で対向部が同方向に回転する如く対向
配設し、下部回転体の両側には対向部が下方に回転する
ブラシロールを夫々配設し、下部回転体とブラシロール
間を通過して分繊されたカーボン短繊維を微粉体原材料
と混合する手段を備えているので凝集力が強く小塊綿状
に凝集したカーボン短繊維凝集体を損傷することなく一
本ずつの単繊維に分繊し、そのま\の状態で分散混合し
た乾状態の微粉体原材料を得ることができる。(Effects) According to the present invention, a pair of upper rotating bodies each having a large number of fine protrusions erected at small intervals on its surface are arranged such that the tips of both fine protrusions are left with a slight gap and the opposing parts move relative downward. A short carbon fiber aggregate feeding device is arranged above the upper rotating body, and a lower rotating body with a large number of fine protrusions erected at small intervals on its surface is placed below the upper rotating body with a slow circumferential speed. The opposing parts are arranged to face each other so that they rotate in the same direction with or without a slight gap, and brush rolls whose opposing parts rotate downward are arranged on both sides of the lower rotating body. It is equipped with a means to mix the short carbon fibers separated by passing between the brush rolls with the fine powder raw material, so the short carbon fibers have a strong cohesive force and can be made into small, cotton-like aggregates without damaging them. A fine powder raw material in a dry state can be obtained by dividing the fibers into individual fibers and dispersing and mixing them as they are.
図は本発明の一実施例正面図である。
1.2・・・上部回転体、3,4・・・細突起、 5・
・・ホッパー、6・・・カーボン短繊維凝集体、7・・
・下部回転体、9,10.11 ・・・ブラシロール、
12゜13.14・・・弾性細線、15・・・ミキサー
。The figure is a front view of one embodiment of the present invention. 1.2... Upper rotating body, 3, 4... Thin protrusions, 5.
... Hopper, 6... Carbon short fiber aggregate, 7...
・Lower rotating body, 9, 10.11...Brush roll,
12゜13.14...Elastic fine wire, 15...Mixer.
Claims (1)
体を両細突起先端が僅の間隙を存して対向部が下方に相
対運動する如く配設し、その上方にカーボン短繊維凝集
体供給装置を配設し、周速度のおそい上部回転体の下方
には表面に多数の細突起を小間隔で立設した下部回転体
を両細突起が僅の間隙を存するか存しない状態で対向部
が同方向に回転する如く対向配設し、下部回転体の両側
には対向部が下方に回転するブラシロールを夫々配設し
、下部回転体とブラシロール間を通過して分繊されたカ
ーボン短繊維を微粉体原材料と混合する手段を備えたカ
ーボン短繊維を単繊維状に分散混合した乾状態の微粉体
原材料製造装置。A pair of upper rotating bodies each having a large number of fine protrusions erected at small intervals on its surface are arranged so that the tips of both fine protrusions are relatively movable downward with a slight gap between them, and a carbon short piece is placed above them. A fiber aggregate supply device is installed, and below the upper rotating body with a slow circumferential speed, there is a lower rotating body with many fine protrusions erected at small intervals on its surface, with a slight gap between the two fine protrusions. brush rolls are arranged so that the opposing parts rotate in the same direction in the state, and brush rolls whose opposing parts rotate downward are arranged on both sides of the lower rotating body. An apparatus for producing fine powder raw material in a dry state in which short carbon fibers are dispersed and mixed in the form of single fibers, and is equipped with means for mixing fiberized short carbon fibers with fine powder raw material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27429584A JPS61157335A (en) | 1984-12-28 | 1984-12-28 | Apparatus for preparing fine powdery stock material in dry state by dispersing and mixing carbon staple fiber in monofilament state |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27429584A JPS61157335A (en) | 1984-12-28 | 1984-12-28 | Apparatus for preparing fine powdery stock material in dry state by dispersing and mixing carbon staple fiber in monofilament state |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61157335A true JPS61157335A (en) | 1986-07-17 |
JPS636251B2 JPS636251B2 (en) | 1988-02-09 |
Family
ID=17539651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27429584A Granted JPS61157335A (en) | 1984-12-28 | 1984-12-28 | Apparatus for preparing fine powdery stock material in dry state by dispersing and mixing carbon staple fiber in monofilament state |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61157335A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01105704A (en) * | 1987-07-23 | 1989-04-24 | Kuraray Co Ltd | Method for feeding reinforcing fiber |
WO2000006236A1 (en) * | 1998-07-30 | 2000-02-10 | Microdrug Ag | Powder feeding device |
WO2013166132A1 (en) * | 2012-05-01 | 2013-11-07 | Continental Structural Plastics, Inc. | Process of debundling carbon fiber tow and molding compositions containing such fibers |
WO2021187346A1 (en) * | 2020-03-18 | 2021-09-23 | 三菱ケミカル株式会社 | Smc manufacturing method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5671715U (en) * | 1979-11-09 | 1981-06-12 |
-
1984
- 1984-12-28 JP JP27429584A patent/JPS61157335A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5671715U (en) * | 1979-11-09 | 1981-06-12 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01105704A (en) * | 1987-07-23 | 1989-04-24 | Kuraray Co Ltd | Method for feeding reinforcing fiber |
WO2000006236A1 (en) * | 1998-07-30 | 2000-02-10 | Microdrug Ag | Powder feeding device |
WO2013166132A1 (en) * | 2012-05-01 | 2013-11-07 | Continental Structural Plastics, Inc. | Process of debundling carbon fiber tow and molding compositions containing such fibers |
CN104411871A (en) * | 2012-05-01 | 2015-03-11 | 康廷南拓结构塑料有限公司 | Process of debundling carbon fiber tow and molding compositions containing such fibers |
US10337129B2 (en) | 2012-05-01 | 2019-07-02 | Continental Structural Plastics, Inc. | Process of debundling carbon fiber tow and molding compositions containing such fibers |
US11214894B2 (en) | 2012-05-01 | 2022-01-04 | Continental Structural Plastics, Inc. | Process of debundling carbon fiber tow and molding compositions containing such fibers |
WO2021187346A1 (en) * | 2020-03-18 | 2021-09-23 | 三菱ケミカル株式会社 | Smc manufacturing method |
Also Published As
Publication number | Publication date |
---|---|
JPS636251B2 (en) | 1988-02-09 |
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