JPH10100144A - Manufacture of inorganic filler-filled resin composition - Google Patents

Manufacture of inorganic filler-filled resin composition

Info

Publication number
JPH10100144A
JPH10100144A JP8280208A JP28020896A JPH10100144A JP H10100144 A JPH10100144 A JP H10100144A JP 8280208 A JP8280208 A JP 8280208A JP 28020896 A JP28020896 A JP 28020896A JP H10100144 A JPH10100144 A JP H10100144A
Authority
JP
Japan
Prior art keywords
specific gravity
powder
bulk specific
compression
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.)
Pending
Application number
JP8280208A
Other languages
Japanese (ja)
Inventor
Mitsuo Miyaji
光雄 宮地
Toshimi Nishitarumi
利美 西垂水
Hiroomi Kamano
博臣 釜野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurimoto Ltd
Original Assignee
Kurimoto Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kurimoto Ltd filed Critical Kurimoto Ltd
Priority to JP8280208A priority Critical patent/JPH10100144A/en
Publication of JPH10100144A publication Critical patent/JPH10100144A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To continuously, stably manufacture with a low cost by vacuum deaerating and compression deaerating inorganic fine powder having specific value of bulk specific gravity to a specific bulk specific gravity, and then melt kneading it together with resin at a predetermined ratio by a uniaxial or biaxial extruder. SOLUTION: An inorganic powder having a bulk specific gravity of 0.05 to 0.20 is fed from a supply port 5 to an exhaust port 6 by a helical screw 13. In this case, when it arrives at a filter cassette 8, the air in the powder is sucked and exhausted from the cassette 8 via a pipe 11 by suction force of a vacuum pump 12. The deaerated powder is fed in a supply unit 2 via an exhaust passage 16, and forced down by a screw 21. Further, the powder is exhausted from below between a pair of cylindrical rolls 23 while the powder is being compression deaerated to 0.5 or more of its bulk specific gravity. The powder having a stable bulk specific gravity can be formed by a gap between the rolls, compression force and rotational speed.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、無機質の充填材
を混合した樹脂組成物の製造方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a resin composition mixed with an inorganic filler.

【0002】[0002]

【従来の技術】マスターバッチとは無機粉体を樹脂の中
に配合したものをいう。マスターバッチは、無機質の粉
体を純粋な樹脂と一定割合で押出成形機に供給し、溶融
押出しすればペレット状の樹脂原料となる。この樹脂原
料を樹脂の一部として配合混合し成形機で成形して、自
動車用部品や家電製品用部品を製造することができる。
マスターバッチは一般的にはペレット状に作るので、輸
送コストの低下や粉塵が無くなるなどのメリットがあ
る。マスターバッチに使用される無機粉体は年々微細化
の方向に有り、このため嵩比重が小さく空気を多量に含
んでいる。したがって、無機粉体と樹脂の重量組成比が
一定であれは、無機粉体を微細化しただけ、多くの空気
が押出成形機に入ってくることとなり、無機粉体の供給
が困難となると同時に樹脂への無機粉体の分散が悪くな
る。高配合、すなわち無機粉体を樹脂に多量に配合しよ
うとすれば、ますます空気の混入が増し、それによる弊
害が大きくなる。
2. Description of the Related Art A masterbatch is a mixture of an inorganic powder and a resin. The masterbatch is obtained by feeding an inorganic powder and a pure resin to an extruder at a constant ratio and extruding the resin into a pellet-shaped resin raw material. This resin raw material is mixed and mixed as a part of the resin, and molded by a molding machine, so that parts for automobiles and parts for home appliances can be manufactured.
Since the master batch is generally made in the form of pellets, there are merits such as reduction in transportation cost and elimination of dust. The inorganic powder used for the masterbatch is becoming finer year by year, and therefore has a low bulk specific gravity and contains a large amount of air. Therefore, as long as the weight composition ratio of the inorganic powder and the resin is constant, as much as the inorganic powder is refined, a lot of air enters the extruder, which makes it difficult to supply the inorganic powder. Dispersion of the inorganic powder in the resin becomes worse. If a high blending ratio, that is, a large amount of inorganic powder is blended with the resin, the incorporation of air is further increased, and the adverse effect is increased.

【0003】この種、従来技術として、例えば特開平4
−306261号公報を挙げることができる。この特許
に開示されている製造方法は、無機粉体を単に2つのロ
ール間に供給し、該ロール間にて圧縮し脱気するもので
ある。
[0003] As a conventional technique of this kind, for example, Japanese Unexamined Patent Publication No.
No. 306261 can be mentioned. The production method disclosed in this patent simply supplies the inorganic powder between two rolls and compresses and degassed between the rolls.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このロ
ールにて、例えば脱気前の嵩比重が0.1の無機粉体を
脱気後の嵩比重が0.5となるように圧縮脱気する場
合、すなわち、嵩比重0.1の無機粉体を供給スクリュ
ーにより2つのロール間に供給するのであるが、空気を
多量に含むものであるため、一見すれば水状であり、容
易にロール間に供給できるものではない。また、大きな
直径と幅の大きい圧縮ロールを使用し、しかも極めて低
速で回転しなければならず、結果的に高コストな設備と
なる。さらに嵩比重の一定した無機粉体を連続的に製造
することははなはだ困難である。
However, with this roll, for example, inorganic powder having a bulk specific gravity of 0.1 before deaeration is compressed and deaerated so that the bulk specific gravity after the deaeration becomes 0.5. In this case, an inorganic powder having a bulk specific gravity of 0.1 is supplied between two rolls by a supply screw. However, since it contains a large amount of air, it is water-like at first glance, and is easily supplied between the rolls. Not something you can do. In addition, a large-diameter and wide compression roll must be used, and must be rotated at an extremely low speed, resulting in high-cost equipment. Further, it is extremely difficult to continuously produce an inorganic powder having a constant bulk specific gravity.

【0005】この発明は、これらの問題点を解決するた
めになしたものであり、連続的かつ安定的に、しかも低
コストで無機質充填材入り樹脂組成物の製造方法を提供
するものである。
The present invention has been made to solve these problems, and provides a method for continuously and stably producing a resin composition containing an inorganic filler at low cost.

【0006】[0006]

【課題を解決するための手段】前記の課題を解決するた
めに、この発明は脱気前の嵩比重が0.05〜0.20
である無機質の微粉体を真空脱気し、さらに圧縮脱気し
て嵩比重を0.5以上とした後、この脱気した微粉体を
樹脂とともに所定割合で1軸または2軸式押出機に供給
して溶融混練することである。これにより、 (1) 連続して脱気度の一定したマスターバッチ用無機粉
体を作ることができる。 (2) 低コストで製造することができる。 (3) 無機粉体と樹脂との重量組成比が60:40以上
(〜90:10)の高配合の樹脂をえることができ、し
かも無機粉体の樹脂中への分散が優れたものである。な
お、脱気前の無機質の微粉体の真比重は2.2以上のも
のである。
In order to solve the above-mentioned problems, the present invention has a bulk specific gravity of 0.05 to 0.20 before deaeration.
The inorganic fine powder is vacuum degassed and further compressed and degassed to a bulk specific gravity of 0.5 or more, and then the degassed fine powder is mixed with a resin at a predetermined ratio in a single-screw or twin-screw extruder. Supply and melt kneading. Thereby, (1) an inorganic powder for a master batch having a constant degassing degree can be continuously produced. (2) It can be manufactured at low cost. (3) It is possible to obtain a highly blended resin having a weight composition ratio of the inorganic powder to the resin of 60:40 or more (up to 90:10), and excellent dispersion of the inorganic powder in the resin. is there. The true specific gravity of the inorganic fine powder before degassing is 2.2 or more.

【0007】[0007]

【発明の実施の形態】この発明で実施する脱気装置は真
空脱気装置1と供給機2と圧縮脱気装置3とからなる。
真空脱気装置1は、一端上部に供給口5と他端部に排出
口6を有する円筒状ケーシング4の排出口側の部分に脱
気部7を設け、脱気部7はケーシング4と同心状に配設
したフィルタカセット8と、フィルタカセット8を囲繞
する脱気ケース9と、脱気ケース9の脱気口10に配管
11を介して真空ポンプ12とからなる。フィルタカセ
ット8は、円筒状の繊維または金属製のフィルタエレメ
ントの内外に円筒状の多孔板若しくは金網を取付けたも
のである。円筒状ケーシング4内には、ヘリカルスクリ
ュー13が配設され、ヘリカルスクリュー13はスクリ
ュー用モータ14により回転する。15は供給口5に設
けた原料ビン(ホッパ)、16は排出口6に設けた排出
通路である。供給機2は、上部が蓋板18により閉蓋さ
れたロート部17と下方側に位置し下端が開放された直
筒部19とからなり、蓋板18に開けた流入口20に排
出通路16が気密的に接続される。ロート部17と直筒
部19内にスクリュー21が配設され、スクリュー21
はスクリュー用モータ22により回転する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A deaerator according to the present invention comprises a vacuum deaerator 1, a feeder 2, and a compression deaerator 3.
The vacuum deaerator 1 is provided with a deaeration section 7 on a discharge port side of a cylindrical casing 4 having a supply port 5 at one end and an exhaust port 6 at the other end, and the deaeration section 7 is concentric with the casing 4. The filter cassette 8 includes a filter cassette 8, a degassing case 9 surrounding the filter cassette 8, and a vacuum pump 12 through a pipe 11 at a degassing port 10 of the degassing case 9. The filter cassette 8 is formed by attaching a cylindrical perforated plate or a wire mesh to the inside and outside of a cylindrical fiber or metal filter element. A helical screw 13 is provided in the cylindrical casing 4, and the helical screw 13 is rotated by a screw motor 14. Reference numeral 15 denotes a material bin (hopper) provided in the supply port 5, and reference numeral 16 denotes a discharge passage provided in the discharge port 6. The feeder 2 is composed of a funnel 17 whose upper part is closed by a lid plate 18 and a straight cylindrical part 19 which is located on the lower side and whose lower end is open. A discharge passage 16 is formed at an inlet 20 opened in the lid plate 18. Connected airtight. A screw 21 is provided in the funnel 17 and the straight tube 19,
Is rotated by a screw motor 22.

【0008】圧縮脱気装置3は、所定の隙間を有して対
向状に配設した一対の円筒状ロール23からなり、一対
の円筒状ロール23の中央の直上に供給機2の直筒部1
9が位置する。一対の円筒状ロール23は図示省略した
駆動モータにより矢印の方向に回転するようになってい
る。24は略V字状の囲い部材である。
[0008] The compression deaerator 3 comprises a pair of cylindrical rolls 23 arranged opposite to each other with a predetermined gap, and the straight cylindrical portion 1 of the feeder 2 is placed directly above the center of the pair of cylindrical rolls 23.
9 is located. The pair of cylindrical rolls 23 is configured to rotate in the direction of an arrow by a drive motor (not shown). Reference numeral 24 denotes a substantially V-shaped enclosure member.

【0009】原料ホッパ15に貯溜された原料である無
機粉体は、モータ13の駆動によるヘリカルスクリュー
13によって、出口供給口5から取り込まれ、排出口6
の方向に送られる。この過程で、フィルタカセット8に
至ると、真空ポンプ12の吸引力によって、ヘリカルス
クリュー13の羽根の間にある無機粉体中の空気は、フ
ィルタエレメント8を経て吸引され、ケース9、排気口
10、配管11を経て吸引排気され、無機粉体はフィル
タカセット8を通って、排出口6の方向に送られてい
く。すなわち、真空脱気によって無機粉体の粒子と粒子
はより空隙の少ない位置にまで、移動させられ、その分
の空気が脱気されるのである。したがって、粒子の形状
が変形するような状態にまでは至っていないので、この
状態の無機粉体を高所から落下させると、元の状態に戻
ってしまう。例えば、無機粉体の一種であるタルクにつ
いて言えば真空脱気により嵩比重を0.30近辺とする
ことができる。
The inorganic powder as the raw material stored in the raw material hopper 15 is taken in from the outlet supply port 5 by the helical screw 13 driven by the motor 13 and is discharged from the outlet port 6.
Sent in the direction of. In this process, when reaching the filter cassette 8, the air in the inorganic powder between the blades of the helical screw 13 is sucked through the filter element 8 by the suction force of the vacuum pump 12, and the case 9, the exhaust port 10 The inorganic powder is sucked and evacuated through the pipe 11, and the inorganic powder is sent through the filter cassette 8 toward the discharge port 6. That is, the particles of the inorganic powder are moved to a position having less voids by vacuum degassing, and the air is degassed accordingly. Therefore, since the state of the particles has not yet been deformed, if the inorganic powder in this state is dropped from a high place, the state returns to the original state. For example, with respect to talc, which is a kind of inorganic powder, the bulk specific gravity can be set to around 0.30 by vacuum degassing.

【0010】前記真空脱気された無機粉体は、排出口6
から排出通路16を経て供給機2内に流下し、モータ2
2により駆動されるスクリュー21により下方に押込ま
れ、直頭部19の下端から排出され、一対の円筒状ロー
ル23上に供給される。次に、ロール23間でさらに圧
縮脱気されながら、下方から排出される。なお、ロール
の表面は小さな溝や刃形を付けて、摩擦抵抗を大きくす
るように工夫することができる。ロール間の隙間や圧縮
力およびロール間の回転数を適切にセットすることによ
り、安定した嵩比重の無機粉体を作ることができる。無
機粉体の一種であるタルクについて言えば、嵩比重0.
30のものを圧縮脱気して0.5近辺のものを作る。た
とえば、嵩比重0.1のタルクを従来技術のようにロー
ルによる圧縮脱気のみで嵩比重を0.5にしようとする
と、 (1) あらかじめ真空脱気した嵩比重0.3のものに比
べて、処理能力が1/4以下に低下する。 (2) タルクの嵩比重のばら付きが大きくなり、造粒さ
れたものが混入するようになる。嵩比重のばら付きはマ
スタバッチのフィラーの組成比のばら付きの原因とな
り、造粒されたものは分散不良の原因となる。
[0010] The vacuum-degassed inorganic powder is supplied to an outlet 6
Flows down through the discharge passage 16 into the feeder 2 and the motor 2
It is pushed downward by a screw 21 driven by the screw 2, discharged from the lower end of the head 19, and supplied onto a pair of cylindrical rolls 23. Next, it is discharged from below while being further compressed and deaerated between the rolls 23. The surface of the roll can be devised so as to increase the frictional resistance by forming small grooves or blades. By properly setting the gap between the rolls, the compressive force, and the number of rotations between the rolls, an inorganic powder having a stable bulk specific gravity can be produced. Speaking of talc, which is a kind of inorganic powder, the bulk specific gravity is 0.1%.
30 pieces are compressed and degassed to make something around 0.5. For example, if the talc having a bulk specific gravity of 0.1 is to be made to have a bulk specific gravity of 0.5 only by compression deaeration using a roll as in the prior art, (1) a talc having a bulk specific gravity of 0.3 which has been previously vacuum degassed is compared with a talc having a bulk specific gravity of 0.3. Thus, the processing capacity is reduced to 1/4 or less. (2) Variation in bulk specific gravity of talc becomes large, and granulated products are mixed. Variation in bulk specific gravity causes variation in the composition ratio of the filler of the master batch, and granulated one causes poor dispersion.

【0011】1軸式若しくは2軸式押出機25に、ホッ
パ27内の樹脂を供給フィーダ28により、またホッパ
29内のフィラーとしての無機粉体を供給フィーダ30
により投入し、モータ26により駆動されるスクリュー
によって溶融混練し、溶融混練物は出口に冷却されなが
ら押出され、カッタ31により切断されてペレット状の
混合樹脂組成物(マスターバッチ)となる。ペレット状
の混合樹脂組成物の大きさは2〜3mm¢×3mm程度
である。フィラーが微細であると、押出機に容易に供給
することが出来ないので、供給ホッパ32からフィーダ
33を介してサイドフィードするなどの工夫をする。特
にタルクは樹脂(PP)と同時に投入するより、2段フ
ィードする方が分散度がよくなる。それでもフィラーの
組成割合を上げるのに限界がある。ここで、脱気したフ
ィラーを使用すると、この限界を超えることが可能であ
る。しかし、脱気を超えて造粒すると、フィラーの分散
が悪くなり、マスターバッチとして不良品となる。ま
た、マスターバッチはフィラー組成比が常に一定でない
と、使えないものである。したがって、高配合マスター
バッチ用フィラーの条件は、よく脱気されていること
と、造粒されていないことの2点である。しかるに、真
空脱気の後に圧縮脱気したフィラーのみが、上記条件を
満足するものである。
A resin in a hopper 27 is supplied to a single-screw or twin-screw extruder 25 by a feeder 28 and an inorganic powder as a filler in a hopper 29 is supplied to a feeder 30.
And melt-kneaded by a screw driven by a motor 26, and the melt-kneaded material is extruded while being cooled to an outlet, and cut by a cutter 31 to form a pellet-shaped mixed resin composition (master batch). The size of the pellet-shaped mixed resin composition is about 2 to 3 mm × 3 mm. If the filler is fine, it cannot be easily supplied to the extruder. Therefore, a device such as side feed from the supply hopper 32 via the feeder 33 is used. In particular, talc has better dispersibility when fed in two stages than when fed simultaneously with the resin (PP). Nevertheless, there is a limit in increasing the composition ratio of the filler. Here, if a degassed filler is used, it is possible to exceed this limit. However, when the granulation is performed beyond degassing, the dispersion of the filler becomes worse, resulting in a defective master batch. Further, the masterbatch cannot be used unless the filler composition ratio is always constant. Therefore, there are two conditions for the filler for a high-mix masterbatch: that it is well degassed and that it is not granulated. However, only the filler that has been compressed and degassed after vacuum degassing satisfies the above conditions.

【0012】[0012]

【実施例】【Example】

(実施例1)3種類のフィラー、無機粉体、例えばタル
クを使って、実験により押出機の処理能力を求めた。 ただし、(1) 重量配合比はタルク:PP(ポリプロピ
レン)=80:20とした。 (2) 2軸式押出機の仕様 型番:KEXN−40(当社製) モータ出力:11KW ヒータ容量:20KW
(Example 1) The processing capacity of an extruder was experimentally determined using three types of fillers and inorganic powder, for example, talc. However, (1) the weight ratio was talc: PP (polypropylene) = 80: 20. (2) Specifications of twin-screw extruder Model number: KEXN-40 (manufactured by our company) Motor output: 11 KW Heater capacity: 20 KW

【0013】[0013]

【表1】 ただし、タルクCはタルクBを2段脱気したものである。[Table 1] However, talc C was obtained by degassing talc B in two stages.

【0014】[0014]

【表2】 [Table 2]

【0015】(実施例2)2種類の無機粉体、例えばタ
ルクを使って、実験によりローラコンパクタ(圧縮脱気
装置)の処理能力を求めた。 ただし、(1) タルクの嵩比重を0.5とした。 (2) ローラコンパクタの仕様 型番:PCP−200H(当社製) ロール寸法:200φ×60W m/m モータ出力:7.5KW(ローラ用) 3.7KW(スクリュー用)
(Example 2) The processing capacity of a roller compactor (compression deaerator) was determined by experiment using two types of inorganic powders, for example, talc. However, (1) the bulk specific gravity of talc was set to 0.5. (2) Roller compactor specifications Model No .: PCP-200H (manufactured by our company) Roll dimensions: 200φ × 60W m / m Motor output: 7.5KW (for rollers) 3.7KW (for screws)

【0016】[0016]

【表3】 ただし、タルクAはローラミルで粉砕したもの、タルクBはジェットミ ルで粉砕したもの。[Table 3] However, talc A was crushed by a roller mill, and talc B was crushed by a jet mill.

【0017】ローラミルで粉砕した嵩比重0.3のタル
クAをロール式の圧縮脱気装置のみで脱気した際の処理
能力は、50 Kg/Hrであった。一方、ジェットミルで粉
砕した嵩比重0.1のタルクBをロール式の圧縮脱気装
置のみで脱気した際の処理能力は、10 Kg/Hrと極めて
少なくかつ不安定であるが、2段処理、すなわち真空脱
気装置と圧縮脱気装置で脱気した際の処理能力は、30
〜50 Kg/Hrとなり処理能力が大幅にアップするのみな
らず、嵩比重が0.3のタルクAより大きい0.1であ
るにもかかわらず、ほぼ近い処理能力を得ることができ
る。
The processing capacity when talc A having a bulk specific gravity of 0.3 and pulverized by a roller mill was deaerated only by a roll-type compression deaerator was 50 Kg / Hr. On the other hand, when talc B having a bulk specific gravity of 0.1 crushed by a jet mill is degassed with only a roll-type compression deaerator, the processing capacity is extremely small at 10 Kg / Hr and is unstable. Processing capacity, that is, processing capacity when deaerated by a vacuum deaerator and a compression deaerator, is 30
-50 Kg / Hr, and not only the processing capacity is greatly increased, but also almost the same processing capacity can be obtained even though the bulk specific gravity is 0.1 which is larger than talc A of 0.3.

【0018】[0018]

【発明の効果】この発明は以上のように構成したから、
次に述べるような効果を奏する。脱気前の嵩比重が0.
05〜0.20である無機質の微粉体を真空脱気し、さ
らに圧縮脱気して嵩比重を0.5以上とした後、この脱
気した微粉体を樹脂とともに所定割合で1軸または2軸
式押出機に供給して溶融混練するようにしたので、無機
粉体と樹脂との重量組成比が60:40以上(〜90:
10)の高配合の樹脂を得ることができ、しかも無機粉
体の樹脂中への分散が優れたものである。また、無機粉
体を真空脱気装置により事前に真空脱気するので、圧縮
脱気装置が小型となり、装置全体としてコンパクトとな
り、安価となる。さらに、真空脱気と圧縮脱気の2段脱
気をすることにより、押出機の処理能力が大幅に向上す
るので、マスターバッチのコストを下げることができ
る。さらに、造粒されたものが含まれないので、マスタ
ーバッチの性能が向上する。
The present invention is configured as described above.
The following effects are obtained. The bulk specific gravity before deaeration is 0.
The inorganic fine powder having a bulk specific gravity of 0.5 to 0.20 is vacuum-degassed, and further compressed and degassed to have a bulk specific gravity of 0.5 or more. Since the mixture was supplied to the screw extruder and melt-kneaded, the weight composition ratio between the inorganic powder and the resin was 60:40 or more (up to 90:40).
A resin having a high blending ratio of 10) can be obtained, and the dispersion of the inorganic powder in the resin is excellent. Further, since the inorganic powder is vacuum-degassed in advance by the vacuum degassing device, the compression degassing device becomes small, and the whole device becomes compact and inexpensive. Furthermore, by performing two-stage degassing of vacuum degassing and compression degassing, the processing capacity of the extruder is greatly improved, and the cost of the master batch can be reduced. Further, the performance of the masterbatch is improved because no granulated product is included.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の実施の形態に係る無機質充填材入り
樹脂組成物の製造方法に用いる脱気装置を示す断面図。
FIG. 1 is a cross-sectional view showing a deaerator used in a method for producing a resin composition containing an inorganic filler according to an embodiment of the present invention.

【図2】この発明の実施の形態に係る無機質充填材入り
樹脂組成物の製造方法に用いる製造設備を示す断面図。
FIG. 2 is a cross-sectional view showing a production facility used for a method for producing a resin composition containing an inorganic filler according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 真空脱気装置 2 供給機 3 圧縮脱気装置 4 円筒状ケーシング 5 供給口 6 排出口 7 脱気部 8 フィルタカセット 9 脱気ケース 10 脱気口 11 配管 12 真空ポンプ 13 ヘリカルスクリュー軸 14 スクリュー用モータ 15 原料ビン 16 排出通路 17 ロート部 18 蓋板 19 直筒部 20 供給口 21 スクリュー軸 22 モータ 23 一対の円筒状ロール 24 略V字状の囲い部材 DESCRIPTION OF SYMBOLS 1 Vacuum deaerator 2 Feeder 3 Compression deaerator 4 Cylindrical casing 5 Supply port 6 Discharge port 7 Deaeration part 8 Filter cassette 9 Deaeration case 10 Deaeration port 11 Pipe 12 Vacuum pump 13 Helical screw shaft 14 For screw Motor 15 raw material bin 16 discharge passage 17 funnel 18 cover plate 19 straight cylindrical part 20 supply port 21 screw shaft 22 motor 23 pair of cylindrical rolls 24 substantially V-shaped enclosure member

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 脱気前の嵩比重が0.05〜0.20で
ある無機質の微粉体を真空脱気し、さらに圧縮脱気して
嵩比重を0.5以上とした後、この脱気した微粉体を樹
脂とともに所定割合で1軸または2軸式押出機に供給し
て溶融混練することを特徴とする無機質充填材入り樹脂
組成物の製造方法。
1. An inorganic fine powder having a bulk specific gravity of 0.05 to 0.20 before degassing is vacuum degassed, and further compressed and degassed to have a bulk specific gravity of 0.5 or more. A method for producing a resin composition containing an inorganic filler, comprising supplying a gaseous fine powder together with a resin at a predetermined ratio to a single-screw or twin-screw extruder and melt-kneading the same.
JP8280208A 1996-09-30 1996-09-30 Manufacture of inorganic filler-filled resin composition Pending JPH10100144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8280208A JPH10100144A (en) 1996-09-30 1996-09-30 Manufacture of inorganic filler-filled resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8280208A JPH10100144A (en) 1996-09-30 1996-09-30 Manufacture of inorganic filler-filled resin composition

Publications (1)

Publication Number Publication Date
JPH10100144A true JPH10100144A (en) 1998-04-21

Family

ID=17621825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8280208A Pending JPH10100144A (en) 1996-09-30 1996-09-30 Manufacture of inorganic filler-filled resin composition

Country Status (1)

Country Link
JP (1) JPH10100144A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000064966A1 (en) * 1999-04-23 2000-11-02 Great Lakes Chemical Corporation Vacuum de-aerated powdered polymer additives
EP1158015A1 (en) * 2000-05-25 2001-11-28 Wacker-Chemie GmbH Process for producing filler-containing rubber compositions
KR100321429B1 (en) * 2000-09-08 2002-03-18 송재식 Dispensing head unit used to semiconductor packing
JP2002292625A (en) * 2001-03-30 2002-10-09 Asahi Kasei Corp Method for manufacture of polyamide resin composition and molded product obtained therefrom
WO2003031134A1 (en) * 2001-10-10 2003-04-17 Imerys Minerals Limited Process for making a mineral filled polymer composition
EP1415784A1 (en) * 2002-10-31 2004-05-06 SABIC Polypropylenes B.V. Compounding process
WO2006028144A1 (en) * 2004-09-08 2006-03-16 Japan Polypropylene Corporation Polypropylene resin composition and process for producing the same
WO2013161998A1 (en) * 2012-04-27 2013-10-31 株式会社日本製鋼所 Device and method for screw-type supply of fine powder raw material
JP2016518484A (en) * 2013-04-05 2016-06-23 オムヤ インターナショナル アーゲー Process for the production of composite polymer materials with increased filler content

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000064966A1 (en) * 1999-04-23 2000-11-02 Great Lakes Chemical Corporation Vacuum de-aerated powdered polymer additives
US6239197B1 (en) 1999-04-23 2001-05-29 Great Lakes Chemical Corporation Vacuum de-aerated powdered polymer additives
EP1158015A1 (en) * 2000-05-25 2001-11-28 Wacker-Chemie GmbH Process for producing filler-containing rubber compositions
KR100321429B1 (en) * 2000-09-08 2002-03-18 송재식 Dispensing head unit used to semiconductor packing
JP2002292625A (en) * 2001-03-30 2002-10-09 Asahi Kasei Corp Method for manufacture of polyamide resin composition and molded product obtained therefrom
JP4627917B2 (en) * 2001-03-30 2011-02-09 旭化成ケミカルズ株式会社 Process for producing polyamide resin composition and molded product obtained therefrom
WO2003031134A1 (en) * 2001-10-10 2003-04-17 Imerys Minerals Limited Process for making a mineral filled polymer composition
EP1415784A1 (en) * 2002-10-31 2004-05-06 SABIC Polypropylenes B.V. Compounding process
WO2006028144A1 (en) * 2004-09-08 2006-03-16 Japan Polypropylene Corporation Polypropylene resin composition and process for producing the same
WO2013161998A1 (en) * 2012-04-27 2013-10-31 株式会社日本製鋼所 Device and method for screw-type supply of fine powder raw material
JP2013230559A (en) * 2012-04-27 2013-11-14 Japan Steel Works Ltd:The Device and method for screw-type supply of fine powder raw material
JP2016518484A (en) * 2013-04-05 2016-06-23 オムヤ インターナショナル アーゲー Process for the production of composite polymer materials with increased filler content

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