JPS59138429A - 導電性合成樹脂の製造方法 - Google Patents

導電性合成樹脂の製造方法

Info

Publication number
JPS59138429A
JPS59138429A JP59003350A JP335084A JPS59138429A JP S59138429 A JPS59138429 A JP S59138429A JP 59003350 A JP59003350 A JP 59003350A JP 335084 A JP335084 A JP 335084A JP S59138429 A JPS59138429 A JP S59138429A
Authority
JP
Japan
Prior art keywords
synthetic resin
conductive
component
carbon black
producing
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
JP59003350A
Other languages
English (en)
Inventor
ジビレ・フオン・トムケウイツチユ
ハンスフリ−ドリツヒ・シユミツト
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of JPS59138429A publication Critical patent/JPS59138429A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/726—Measuring properties of mixture, e.g. temperature or density
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92238—Electrical properties
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92314—Particular value claimed
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/92409—Die; Nozzle zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • 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
    • B29K2105/16—Fillers
    • 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
    • B29K2707/00—Use of elements other than metals for preformed parts, e.g. for inserts
    • B29K2707/04—Carbon
    • 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
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0005—Conductive

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Reinforced Plastic Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は、例えば長鎖の導電性カーボンブラックを添加
することによって、僅かな導電率許容差を有し複数の成
分から成る導電性合成樹脂を製造する方法に関する。
特に帯電防止部材をつくるため、導電性添加物を使用し
て合成樹脂を調製することはよく知られている。この目
的のため、例えばカーボンブラックが所定の割合で合成
樹脂に混合される。必要とする表面抵抗または絶縁抵抗
は、使用目的によって相違する。１０１０Ω／口以上お
よび１ｏ４Ω／口以下の表面抵抗は、所定の処方によっ
て得ることができる。しかしながら、それらの中間の領
域では、成分の性質の僅かな相違および押出し条件の変
動によって許容し難い誤差になるため、一定の処方によ
って調製することは不可能である−従来、調合割合は重
量測定捷たけ容量測定によって定められる。その場合、
成分の性質が考慮されていないため、最終成果が著しく
変動するとい・う、欠点がある。これは例えば、カーボ
ンブラックの導電率および場合によってはその粒子の大
きさの分布に依存する。
現在においては、調合に際してカーボンブランクの導電
率を測定し、調整に使用することはなお不可能である。
既に述べたように、従来は重量を測定して調合され、完
成した射出成形部品について初めて材料の品質が検査さ
れている。
ドイツ連邦共和国特許出願公開第２８３８１１０号明細
書において、押出機で処理するために定められた混合チ
ャージの複数の個々の物質を調合するだめの装置が記載
されている。その場合、微分制御と同様に、押出される
材料の温度および粘度に対する高い精度が得られる。
本発明の目的は、狭い範囲内に限定された電気的特性値
を有する合成樹脂、例えば表面抵抗が約放電時間がｌＱ
Ｑｍｓ以下の合成樹脂を製造する方法を提供することに
ある。この目的は本発明によれば、押出品で測定された
電気値によって調合割合を調節することによって達成さ
れる。電気値としては、表面抵抗または絶縁抵抗があげ
られる。
本発明による方法は、例えばカーボンブラックの特性お
よび押出機内の分散の影響が除去される利点を有してい
る。この分散は、温度、ウオーム歯車形状、回転数およ
び処理容量によって影響される。本発明による方法は、
押出機形式および所定の処方とは無関係に行われる。
この効果を得るため、導電率成分まだは合成樹脂成分を
変更することができる。装入量を一定に保持するだめ、
測定結果に対応して導電率成分を変更するのが有利であ
る。
添加物質、例えば鉱物を所定量添加することによって、
一層良好な分散が得られる。これによって、表面抵抗を
１０のべき乗内に保持することができる。
本発明方法は、高い表面抵抗をもち５０００ボルトから
約Ｏボルトへの放電時間が１００ｍ５　以下の導電性合
成樹脂を製造するのに特に適し、この場合ポリアミドが
例えば３０％の鉱物と４ないし６％の特殊な長鎖の導電
性カーボンブラックが押出機において混合される。

Claims (1)

  1. 【特許請求の範囲】 １）長鎖の導電性カーボンブラックを添加することによ
    って、僅かな導電率許容差を有し複数の成分から成る導
    電性合成樹脂を製造する方法において、押出品で測定さ
    れた電気値に応じて調合割合を調節することを特徴とす
    る導電性合成樹脂の製造方法。 ２）導電率成分を調節することを特徴とする特許請求の
    範囲第１項記載の方法。 ３）合成樹脂成分を調節することを特徴とする特許請求
    の範囲第１項記載の方法。 ４）導電性成分の分散を良好にするだめ、添加物質例え
    ば鉱物を所定量だけ添加することを特徴とする特許請求
    の範囲第１項記載の方法。 ５）ポリアミドを３０％の鉱物と４ないし６％ノ特別の
    長鎖の導電性カーボンブラックと押出機において混合し
    、高Ａ表面抵抗を有し５０００ボルトから約０ボルトへ
    の放電時間が１００ｍ５以下のものを得ることを特徴と
    する特許請求の範囲第１項記載の方法。
JP59003350A 1983-01-19 1984-01-11 導電性合成樹脂の製造方法 Pending JPS59138429A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833301635 DE3301635A1 (de) 1983-01-19 1983-01-19 Herstellung von leitfaehigen kunststoffen
DE33016356 1983-01-19

Publications (1)

Publication Number Publication Date
JPS59138429A true JPS59138429A (ja) 1984-08-08

Family

ID=6188638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59003350A Pending JPS59138429A (ja) 1983-01-19 1984-01-11 導電性合成樹脂の製造方法

Country Status (4)

Country Link
US (1) US4548740A (ja)
EP (1) EP0114620A3 (ja)
JP (1) JPS59138429A (ja)
DE (1) DE3301635A1 (ja)

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US5663702A (en) * 1995-06-07 1997-09-02 Littelfuse, Inc. PTC electrical device having fuse link in series and metallized ceramic electrodes
US5897413A (en) * 1995-10-10 1999-04-27 Erland; Jonathan Travelling mat backing
US5814264A (en) * 1996-04-12 1998-09-29 Littelfuse, Inc. Continuous manufacturing methods for positive temperature coefficient materials
US6023403A (en) * 1996-05-03 2000-02-08 Littlefuse, Inc. Surface mountable electrical device comprising a PTC and fusible element
US6282072B1 (en) 1998-02-24 2001-08-28 Littelfuse, Inc. Electrical devices having a polymer PTC array
WO2000019455A1 (en) * 1998-09-25 2000-04-06 Bourns, Inc. Two-step process for preparing positive temperature coefficient polymer materials
US6582647B1 (en) 1998-10-01 2003-06-24 Littelfuse, Inc. Method for heat treating PTC devices
US6628498B2 (en) 2000-08-28 2003-09-30 Steven J. Whitney Integrated electrostatic discharge and overcurrent device
JP4902944B2 (ja) 2002-04-08 2012-03-21 リッテルフューズ，インコーポレイティド 直接塗布するための電圧可変物質、及び電圧可変物質を使用するデバイス
US7183891B2 (en) 2002-04-08 2007-02-27 Littelfuse, Inc. Direct application voltage variable material, devices employing same and methods of manufacturing such devices
US7132922B2 (en) 2002-04-08 2006-11-07 Littelfuse, Inc. Direct application voltage variable material, components thereof and devices employing same

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Also Published As

Publication number Publication date
EP0114620A2 (de) 1984-08-01
US4548740A (en) 1985-10-22
EP0114620A3 (de) 1987-04-22
DE3301635A1 (de) 1984-07-26

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