JPH05177629A - Preparation of pellet - Google Patents
Preparation of pelletInfo
- Publication number
- JPH05177629A JPH05177629A JP3067810A JP6781091A JPH05177629A JP H05177629 A JPH05177629 A JP H05177629A JP 3067810 A JP3067810 A JP 3067810A JP 6781091 A JP6781091 A JP 6781091A JP H05177629 A JPH05177629 A JP H05177629A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- melt viscosity
- thermoplastic resin
- glass fiber
- pellets
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
- B29K2105/101—Oriented
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はガラス繊維で補強された
熱可塑性樹脂体（ＦＲＴＰ成形品）の製造に好適に用い
られるペレットの製造法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing pellets preferably used for producing a glass fiber reinforced thermoplastic resin body (FRTP molded article).
【０００２】[0002]
【従来の技術】ガラス繊維束切断物（ＣＳ）と熱可塑性
樹脂ペレットとを押出機中で加熱しつつ混練することに
よりペレットを製造し、（以下ＣＳ法という。）このペ
レットを原料として射出成形法によりＦＲＴＰ成形品を
製造することは広く行われている。又、長尺のガラス繊
維束を熱可塑性樹脂溶融物中を通過させて、ガラス繊維
束の表面に該樹脂を被着させた後切断してＦＲＴＰ成形
用ペレットとなし、（以下長尺法いう。）、このペレッ
トを原料として射出成形法によりＦＲＴＰ成形品を製造
することも広く行われている。（例えば特公昭５７−１
７６８６号公報、特公昭６１−４０１１３号公報参照）2. Description of the Related Art Pellets are manufactured by kneading cut glass fiber bundles (CS) and thermoplastic resin pellets while heating them in an extruder (hereinafter referred to as CS method), and injection molding using these pellets as raw materials. It is widely practiced to produce FRTP molded products by the method. In addition, a long glass fiber bundle is passed through a thermoplastic resin melt to deposit the resin on the surface of the glass fiber bundle and then cut to form a FRTP molding pellet. It is also widely practiced to manufacture FRTP molded products by injection molding using these pellets as raw materials. (For example, Japanese Patent Publication 57-1
(See Japanese Patent No. 7686, Japanese Patent Publication No. 61-40113)
【０００３】[0003]
【発明が解決しようとする課題】従来技術は、次のよう
な問題点を有する。ＣＳ法においては、ＣＳと樹脂ペレ
ットとを押出機中で混練する際、ＣＳを構成するガラス
繊維が寸断させるため、高強度のＦＲＴＰ成形品を得る
ことはできない。長尺法においては、ガラス繊維束に熱
可塑性樹脂を均一に含浸させるためには、樹脂粘度が低
い状態で含浸を行う必要があり、樹脂粘度が高い状態で
は、樹脂がガラス繊維束の内部に浸み込み難く、ガラス
繊維束内に、樹脂の含浸が不充分な個処、或は、樹脂の
含浸が全く行われない個処が発生し、均質なＦＲＴＰ成
形品を得ることができない。The prior art has the following problems. In the CS method, when the CS and the resin pellets are kneaded in the extruder, the glass fibers constituting the CS are cut into pieces, so that a high-strength FRTP molded product cannot be obtained. In the long length method, in order to uniformly impregnate the glass fiber bundle with the thermoplastic resin, it is necessary to perform the impregnation in a state where the resin viscosity is low. It is difficult for the resin to soak into the glass fiber bundle, and a portion where the resin is not sufficiently impregnated or a portion where the resin is not completely impregnated occurs in the glass fiber bundle, and a homogeneous FRTP molded product cannot be obtained.
【０００４】ＦＲＴＰ成形品の強度は、熱可塑性樹脂の
組成が一定の場合、一般に熱可塑性樹脂の分子量（重合
度）が大きい程大となる傾向を有するが、分子量を大と
すると粘度も大となってしまい分子量の大きい熱可塑性
樹脂を使用すると含浸を均一に行なうことが困難とな
り、含浸を均一に行なうためには低分子量の樹脂を使用
することが必要となる。このため所望の高強度の、特に
衝撃強度の高いＦＲＴＰ成形品が得難くなる。熱可塑性
樹脂を高温に加熱することにより粘度を低下させること
はできるが、加熱温度を大とすると樹脂の分解、劣化が
生ずるばかりでなく、熱損失も大となり、又装置の耐用
年数も低下する。The strength of a FRTP molded article generally tends to increase as the molecular weight (polymerization degree) of the thermoplastic resin increases, when the composition of the thermoplastic resin is constant, but the viscosity increases as the molecular weight increases. If a thermoplastic resin having a large molecular weight is used, it becomes difficult to carry out the impregnation uniformly, and it is necessary to use a resin having a low molecular weight in order to carry out the impregnation uniformly. For this reason, it becomes difficult to obtain a desired FRTP molded product having high strength, particularly high impact strength. Viscosity can be reduced by heating the thermoplastic resin to a high temperature, but if the heating temperature is increased, not only the resin will decompose and deteriorate, but also the heat loss will increase and the service life of the device will also decrease. .
【０００５】本発明は、上述した従来技術の問題点を解
消し、溶融粘度の高い熱可塑性樹脂溶融物を使用し、長
尺法により、樹脂の含浸の均一なＦＲＴＰ成形用ペレッ
トを製造する方法を提供することを目的とする。The present invention solves the above-mentioned problems of the prior art, and uses a thermoplastic resin melt having a high melt viscosity to produce a pellet for FRTP molding which is uniformly impregnated with the resin by a long method. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明においては、長尺のガラス繊維束を溶融粘度
の低い熱可塑性樹脂溶融物中を連続的に通過させてその
表面に溶融粘度の低い熱可塑性樹脂よりなる第１層を形
成させ、ついで溶融粘度の高い熱可塑性樹脂溶融物中を
連続的に通過させて第１層の上に溶融粘度の高い熱可塑
性樹脂よりなる第２層を形成させた後切断することによ
りペレットを製造する。In order to achieve the above object, in the present invention, a long glass fiber bundle is continuously passed through a thermoplastic resin melt having a low melt viscosity and melted on the surface thereof. A first layer made of a thermoplastic resin having a low viscosity is formed and then continuously passed through a thermoplastic resin melt having a high melt viscosity to form a second layer made of a thermoplastic resin having a high melt viscosity on the first layer. Pellets are produced by forming layers and then cutting.
【０００７】次に、本発明を更に具体的に説明する。本
発明において使用される熱可塑性樹脂としては、ポリエ
チレン樹脂、ポリプロピレン樹脂、ポリアミド樹脂、Ｐ
ＰＳ樹脂、ポエステル樹脂、ＡＳ樹脂、ポリカーボネー
ト樹脂が例示される。溶融粘度の低い樹脂としては、そ
の溶融物の粘度が同じ温度における溶融粘度の高い樹脂
（ＦＲＴＰ成形品を構成する主体となる樹脂）の粘度の
１／２以下、好ましくは１／４以下のものを使用するの
が適当である。Next, the present invention will be described more specifically. Examples of the thermoplastic resin used in the present invention include polyethylene resin, polypropylene resin, polyamide resin, P
Examples include PS resin, polyester resin, AS resin, and polycarbonate resin. As the resin having a low melt viscosity, one having a melt viscosity of not more than ½, preferably not more than ¼ of the viscosity of a resin having a high melt viscosity at the same temperature (resin which constitutes the FRTP molded product) Is suitable.
【０００８】所望の溶融粘度の高い熱可塑性樹脂（樹脂
Ｈ）の被着を良好ならしめるための溶融粘度の低い樹脂
（樹脂Ｌ）としては、樹脂Ｈに対する混合性、相溶性が
良好であり、且つ樹脂Ｈの特性を低下させることがない
もの、或は樹脂Ｈとポリマーアロイを形成し、樹脂Ｈの
特性を向上させるものが適当である。As a resin (resin L) having a low melt viscosity for adhering a desired thermoplastic resin (resin H) having a high melt viscosity to the resin H, the resin M has good mixability and compatibility with the resin H. Further, those which do not deteriorate the characteristics of the resin H or those which form a polymer alloy with the resin H and improve the characteristics of the resin H are suitable.
【０００９】本願発明によるときは、ガラス繊維束は予
め溶融粘度の低い熱可塑性樹脂溶融物で処理され、ガラ
ス繊維表面にはガラス繊維と馴染みの良好な溶融粘度の
低い樹脂層が形成される。溶融粘度の高い熱可塑性樹脂
はガラス繊維との馴染みが比較的低く、ガラス繊維束内
部へ浸み込み難いが、溶融粘度の低い熱可塑性樹脂との
馴染みが良好であり、溶融粘度の低い熱可塑性樹脂で予
め処理されたガラス繊維束への被着も良好で、内部に浸
み込み易くなる。According to the present invention, the glass fiber bundle is preliminarily treated with a thermoplastic resin melt having a low melt viscosity, and a resin layer having a low melt viscosity which is well compatible with the glass fiber is formed on the surface of the glass fiber. Thermoplastic resins with high melt viscosity have relatively low compatibility with glass fibers and are difficult to penetrate into glass fiber bundles, but they have good compatibility with thermoplastic resins with low melt viscosity, and thermoplastic resins with low melt viscosity. Adhesion to the glass fiber bundle pretreated with resin is also good, and it is easy to penetrate into the inside.
【００１０】長尺のガラス繊維束としては、直径３〜２
３μ、望ましくは６〜１６μ程度のガラス繊維に集束剤
を附与し、２，０００〜６，０００本程度、望ましくは
１，６００〜４，０００本程度集束した、１，０００ｍ
当りの重量（ｇｒ）（番手）が２００〜４，５００、望
ましくは５００〜２，５００程度のものが好適に使用で
きる。The long glass fiber bundle has a diameter of 3 to 2
A glass fiber of 3 μm, preferably about 6 to 16 μm, is provided with a sizing agent, and about 2,000 to 6,000, preferably about 1,600 to 4,000, is bundled, 1,000 m.
Those having a weight per unit (gr) (count) of 200 to 4,500, preferably about 500 to 2,500 can be suitably used.
【００１１】このようなガラス繊維束としては、番手の
小さい繊維束（ストランド）を所定本数引揃えたロービ
ング、或は所定本数のガラス繊維を一工程で集束するこ
とによって得られるロービングを好適に使用することが
できる。集束剤としては、エポキシ系、ウレタン系のも
のを用い、又集束剤の附与量はガラス繊維に対し、固形
分として０．２〜２．０ｗｔ％、望ましくは０．４〜
１．０ｗｔ％とするのが適当である。なお、予めバルキ
ー処理したロービングを用いることもできる。As such a glass fiber bundle, a roving obtained by aligning a predetermined number of small number fiber bundles (strands) or a roving obtained by bundling a predetermined number of glass fibers in one step is preferably used. can do. As the sizing agent, an epoxy-based or urethane-based sizing agent is used, and the amount of the sizing agent added is 0.2 to 2.0 wt% as solid content, preferably 0.4 to
It is suitable to be 1.0 wt%. It is also possible to use roving which has been bulky processed in advance.
【００１２】溶融粘度の低い熱可塑性樹脂ペレットを押
出機に供給して溶融し、この溶融物をクロスヘッドダイ
中に供給し、円筒状にロービングを回巻したロービング
回巻体からロービングを引出し、クロスヘッドダイに設
けた入口からクロスヘッドダイ中に供給して、クロスヘ
ッドダイに入口と対向して設けた出口から引出し、後述
するように溶融粘度の高い樹脂を被着させた後、例えば
一対の逆方向に回転するローラを有する引張り装置で引
張ることにより、長尺のガラス繊維束表面に上記樹脂を
被着させることができ、樹脂はロービング内部迄充分含
浸する。なお、押出機及びクロスヘッドダイはＦＲＴＰ
の製造に用いられる常用のものを使用できるので詳細な
説明は省略する。又特公昭５７−１７６８６号公報、特
公昭６１−４０１１３号公報記載の方法を使用すること
もできる。[0012] Thermoplastic resin pellets having a low melt viscosity are fed to an extruder to be melted, the melt is fed into a crosshead die, and the roving is drawn out from a roving winding body in which roving is wound in a cylindrical shape, It is supplied into the crosshead die from an inlet provided in the crosshead die, drawn out from an outlet provided in the crosshead die so as to face the inlet, and a resin having a high melt viscosity is applied as described later, and then, for example, a pair of By pulling with a pulling device having a roller rotating in the opposite direction, the resin can be adhered to the surface of the long glass fiber bundle, and the resin is sufficiently impregnated to the inside of the roving. The extruder and crosshead die are FRTP
Since a conventional one used for the production of the above can be used, detailed description thereof will be omitted. Further, the methods described in JP-B-57-17686 and JP-B-61-40113 can also be used.
【００１３】なお又、ロービングは、上記樹脂溶融物の
温度とほぼ等しい温度迄予熱しておくのが望ましい。予
熱方法に特に限定はなく、赤外線加熱、温風加熱等を用
いることができる。ロービング（ガラス繊維束）に対す
る溶融粘度の低い樹脂の被着量は、クロスヘッドダイ出
口の大きさを増減することにより、所望値に制御するこ
とができるが、この大きさをガラス含有率が３０〜８０
ｗｔ％、望ましくは４０〜７０ｗｔ％となるよう定める
のが適当である。樹脂の被着量があまり大きいと、樹脂
の含有量が過大となる部分が生じて樹脂とガラス繊維の
割合が不均一となり易く、又、この被着量があまり小さ
いと樹脂の含浸しない部分が発生し易い。It is desirable that the roving be preheated to a temperature substantially equal to the temperature of the resin melt. The preheating method is not particularly limited, and infrared heating, warm air heating, or the like can be used. The deposition amount of the resin having a low melt viscosity on the roving (glass fiber bundle) can be controlled to a desired value by increasing or decreasing the size of the crosshead die outlet. ~ 80
It is appropriate to set it to be wt%, preferably 40 to 70 wt%. If the resin deposition amount is too large, the resin content may become excessively large, and the ratio of the resin and the glass fiber tends to be uneven, and if the resin deposition amount is too small, the resin may not be impregnated. It is easy to occur.
【００１４】上記の方法によって得られた溶融粘度の低
い樹脂を被着させて、第１層を形成させたガラス繊維束
を冷却することなく、押出機により溶融粘度の高い樹脂
溶融物を供給したクロスヘッドダイ中を通過させること
により第１層上に溶融粘度の高い樹脂を被着させて第２
層を形成させ、冷風又は水を吹付ける等の方法で冷却し
た後、前述の引張り装置で引張り、３〜３０ｍｍ、望ま
しくは６〜１２ｍｍ程度に切断してペレットを製造す
る。このペレットを用い、たとえば射出成形法を用いる
ことにより、ガラス繊維が寸法されることがなく、高強
度の均質なＦＲＴＰ成形品を得ることができる。The resin having a low melt viscosity obtained by the above method was applied, and the resin melt having a high melt viscosity was supplied by an extruder without cooling the glass fiber bundle on which the first layer was formed. By passing through a crosshead die, a resin having a high melt viscosity is deposited on the first layer to form a second layer.
After forming a layer and cooling it by a method such as blowing cold air or water, it is pulled by the above-mentioned pulling device and cut into 3 to 30 mm, preferably 6 to 12 mm to produce pellets. By using this pellet and using, for example, an injection molding method, it is possible to obtain a high-strength, homogeneous FRTP molded product without the glass fiber being dimensioned.
【００１５】[0015]
【作用】長尺のガラス繊維束を溶融粘度の低い熱可塑性
樹脂溶融物中を連続的に通過させてその表面に溶融粘度
の低い熱可塑性樹脂よりなる第１層を形成させて、つい
で溶融粘度の高い熱可塑性樹脂溶融物中を連続的に通過
させて第１層の上に溶融粘度の高い熱可塑性樹脂よりな
る第２層を成形させた後切断することにより、ガラス繊
維の寸断、樹脂の劣化を招来することなく、高粘度樹脂
の被着の均一なペレットを得ることができ、このペレツ
トを使用して、均質な強度の大きいＦＲＴＰ成形品を得
ることができる。Function: A long glass fiber bundle is continuously passed through a thermoplastic resin melt having a low melt viscosity to form a first layer of a thermoplastic resin having a low melt viscosity on the surface thereof, and then a melt viscosity is formed. Of the high-melting thermoplastic resin is continuously passed to form a second layer of the thermoplastic resin having a high melt viscosity on the first layer, and then the second layer is cut to cut the glass fiber, It is possible to obtain a uniform pellet of a high-viscosity resin adhered without causing deterioration, and using this pellet, it is possible to obtain a uniform FRTP molded product having high strength.
【００１６】[0016]
【実施例】ガラス繊維束として、直径１６μのガラス繊
維にエポキシ系集束剤を固形分として０．７ｗｔ％被着
させ、４，０００本集束してなる１，０００ｍ当りの重
量２，２００ｇｒのロービングを用いた。ＭＦＲ５０ｇ
／１０分のポリプロピレン（ＰＰ）を２５０℃で押出機
で溶融し、クロスヘッドダイに供給し、上記ロービング
を２３０℃に予熱してクロスヘッドダイ中を通過させ、
このＰＰをロービングに被着含有させ、ガラス含有率７
０ｗｔ％の丸棒とした。この上に同様にしてＭＦＲ３ｇ
ｒ／１０分のＰＰを２５０℃で被着させガラス含有量率
２０ｗｔ％の丸棒とした。冷却後１２ｍｍの長さに切断
してペレットとした。このペレットを使用し、射出成形
によりＦＲＴＰ成形品を製造した。このＦＲＴＰ成形品
の物性は次の通りであった。 アイゾットノッチ付衝撃強度 ２０Ｋｇ−ｃｍ／ｃｍ 曲げ強度 １０．５Ｋｇ／ｍｍ2 曲げ弾性率 ４００Ｋｇ／ｍｍ2 EXAMPLE As a glass fiber bundle, a glass fiber having a diameter of 16 μ is coated with 0.7 wt% of an epoxy sizing agent as a solid content, and 4,000 bundles are bundled to form a roving having a weight of 2,200 gr per 1,000 m. Was used. MFR 50g
/ 10 minutes polypropylene (PP) is melted by an extruder at 250 ° C. and supplied to a crosshead die, and the roving is preheated to 230 ° C. and passed through the crosshead die,
This PP is adhered to roving to contain a glass content of 7
It was a 0 wt% round bar. In the same manner as above, MFR 3g
PP of r / 10 min was applied at 250 ° C. to form a round bar having a glass content rate of 20 wt%. After cooling, it was cut into a length of 12 mm to give pellets. Using the pellets, FRTP molded products were manufactured by injection molding. The physical properties of this FRTP molded product were as follows. Impact strength with Izod notch 20 Kg-cm / cm Bending strength 10.5 Kg / mm 2 Flexural modulus 400 Kg / mm 2
【００１７】[0017]
【比較例】実施例で使用したロービングを１２ｍｍの長
さに切断した切断物とＭＦＲ３ｇｒ／１０分のＰＰを
１：４の割合で押出機で十分溶融混練し、ガラス含有率
２０ｗｔ％のペレツとし、このペレットを用い、射出成
形で得られたＦＲＴＰ成形品について同様な試験を行な
った結果は次の通りであった。 アイゾットノッチ付衝撃強度 ７．５Ｋｇ−ｃｍ／ｃ
ｍ 曲げ強度 ９．７Ｋｇ／ｍｍ2 曲げ弾性率 ３９０Ｋｇ／ｍｍ2 [Comparative Example] The rovings used in the examples were cut into pieces having a length of 12 mm, and PP having an MFR of 3 gr / 10 min was sufficiently melt-kneaded in an extruder at a ratio of 1: 4 to obtain pellets having a glass content of 20 wt%. The FRTP molded product obtained by injection molding using this pellet was subjected to the same test, and the results were as follows. Impact strength with Izod notch 7.5 Kg-cm / c
m Bending strength 9.7 Kg / mm 2 Bending elastic modulus 390 Kg / mm 2
【００１８】[0018]
【発明の効果】均質な、強度の大きいＦＲＴＰ成形品を
得ることができる。INDUSTRIAL APPLICABILITY It is possible to obtain a homogeneous, high-strength FRTP molded product.
Claims (1)
可塑性樹脂溶融物中を連続的に通過させてその表面に溶
融粘度の低い熱可塑性樹脂よりなる第１層を形成させ、
ついで溶融粘度の高い熱可塑性樹脂溶融物中を連続的に
通過させて第１層の上に溶融粘度の高い熱可塑性樹脂よ
りなる第２層を形成させた後切断することを特徴とする
ペレットの製造法。1. A long glass fiber bundle is continuously passed through a thermoplastic resin melt having a low melt viscosity to form a first layer made of a thermoplastic resin having a low melt viscosity on the surface thereof.
Next, the pellets are characterized in that the pellets are characterized in that they are continuously passed through a thermoplastic resin melt having a high melt viscosity to form a second layer made of a thermoplastic resin having a high melt viscosity on the first layer and then cut. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3067810A JPH05177629A (en) | 1991-03-08 | 1991-03-08 | Preparation of pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3067810A JPH05177629A (en) | 1991-03-08 | 1991-03-08 | Preparation of pellet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05177629A true JPH05177629A (en) | 1993-07-20 |
Family
ID=13355676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3067810A Pending JPH05177629A (en) | 1991-03-08 | 1991-03-08 | Preparation of pellet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05177629A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06350284A (en) * | 1993-06-10 | 1994-12-22 | Murata Mfg Co Ltd | Chip coil element |
| NL1010646C2 (en) * | 1998-11-25 | 1999-11-19 | Dsm Nv | Moulding material, especially for extrusion compression moulding, comprises particles containing fibres with inner and outer sheath of different viscosity polymers |
| NL1014918C2 (en) * | 2000-04-12 | 2001-10-16 | Dsm Nv | Plastic granulate. |
| JP2011106082A (en) * | 2009-11-19 | 2011-06-02 | General Electric Co <Ge> | Fiber placement system and method using inline infusion and cooling |
| WO2020048862A1 (en) * | 2018-09-05 | 2020-03-12 | Sabic Global Technologies B.V. | Bicycle frame |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5350279A (en) * | 1976-10-19 | 1978-05-08 | Asahi Dow Ltd | Manufacture of moulding material |
| JPS5724820A (en) * | 1980-07-21 | 1982-02-09 | Mitsubishi Electric Corp | Recorder |
| JPS63189208A (en) * | 1987-02-02 | 1988-08-04 | Furukawa Electric Co Ltd:The | Manufacture of electrically conductive polyvinyl chloride resin pellet |
-
1991
- 1991-03-08 JP JP3067810A patent/JPH05177629A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5350279A (en) * | 1976-10-19 | 1978-05-08 | Asahi Dow Ltd | Manufacture of moulding material |
| JPS5724820A (en) * | 1980-07-21 | 1982-02-09 | Mitsubishi Electric Corp | Recorder |
| JPS63189208A (en) * | 1987-02-02 | 1988-08-04 | Furukawa Electric Co Ltd:The | Manufacture of electrically conductive polyvinyl chloride resin pellet |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06350284A (en) * | 1993-06-10 | 1994-12-22 | Murata Mfg Co Ltd | Chip coil element |
| NL1010646C2 (en) * | 1998-11-25 | 1999-11-19 | Dsm Nv | Moulding material, especially for extrusion compression moulding, comprises particles containing fibres with inner and outer sheath of different viscosity polymers |
| NL1014918C2 (en) * | 2000-04-12 | 2001-10-16 | Dsm Nv | Plastic granulate. |
| WO2001076841A3 (en) * | 2000-04-12 | 2002-08-15 | Dsm Nv | Plastic granulate |
| JP2011106082A (en) * | 2009-11-19 | 2011-06-02 | General Electric Co <Ge> | Fiber placement system and method using inline infusion and cooling |
| WO2020048862A1 (en) * | 2018-09-05 | 2020-03-12 | Sabic Global Technologies B.V. | Bicycle frame |
| US11273884B2 (en) | 2018-09-05 | 2022-03-15 | Sabic Global Technologies B.V. | Bicycle frame |
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