ATE196958T1 - Verfahren zur herstellung von ptc-materialien - Google Patents

Verfahren zur herstellung von ptc-materialien

Info

Publication number
ATE196958T1
ATE196958T1 AT97915868T AT97915868T ATE196958T1 AT E196958 T1 ATE196958 T1 AT E196958T1 AT 97915868 T AT97915868 T AT 97915868T AT 97915868 T AT97915868 T AT 97915868T AT E196958 T1 ATE196958 T1 AT E196958T1
Authority
AT
Austria
Prior art keywords
electrical resistivity
conductive filler
polymer component
filler component
receiving unit
Prior art date
Application number
AT97915868T
Other languages
English (en)
Inventor
Feng Cai
Tom J Hall
Original Assignee
Littlefuse Inc
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 Littlefuse Inc filed Critical Littlefuse Inc
Application granted granted Critical
Publication of ATE196958T1 publication Critical patent/ATE196958T1/de

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Thermistors And Varistors (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulding By Coating Moulds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
AT97915868T 1996-04-12 1997-03-17 Verfahren zur herstellung von ptc-materialien ATE196958T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/631,478 US5814264A (en) 1996-04-12 1996-04-12 Continuous manufacturing methods for positive temperature coefficient materials
PCT/US1997/003470 WO1997039461A1 (en) 1996-04-12 1997-03-17 Manufacturing methods for positive temperature coefficient materials

Publications (1)

Publication Number Publication Date
ATE196958T1 true ATE196958T1 (de) 2000-10-15

Family

ID=24531380

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97915868T ATE196958T1 (de) 1996-04-12 1997-03-17 Verfahren zur herstellung von ptc-materialien

Country Status (9)

Country Link
US (1) US5814264A (de)
EP (1) EP0892980B1 (de)
JP (1) JP2000508832A (de)
KR (1) KR20000005396A (de)
AT (1) ATE196958T1 (de)
AU (1) AU2318497A (de)
DE (1) DE69703286T2 (de)
TW (1) TW513730B (de)
WO (1) WO1997039461A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6059997A (en) * 1995-09-29 2000-05-09 Littlelfuse, Inc. Polymeric PTC compositions
US6306323B1 (en) 1997-07-14 2001-10-23 Tyco Electronics Corporation Extrusion of polymers
KR20010079908A (ko) * 1998-09-25 2001-08-22 추후보정 정의 온도 계수 폴리머 재료 제조 방법
US6582647B1 (en) * 1998-10-01 2003-06-24 Littelfuse, Inc. Method for heat treating PTC devices
KR100378927B1 (ko) * 2001-02-16 2003-04-07 엘지전선 주식회사 과전류 차단용 피티씨 폴리머 퓨즈 제조 방법
KR100381920B1 (ko) * 2001-02-16 2003-04-26 엘지전선 주식회사 라미네이터를 이용한 정온계수 화학 가교 공정
KR100381918B1 (ko) * 2001-02-20 2003-04-26 엘지전선 주식회사 과전류 차단용 피티씨 폴리머 퓨즈 제조 방법
CA2378922C (en) * 2002-01-16 2009-01-27 Rutgers, The State University Of New Jersey Compositions and methods of making plastic articles from polymer blends containing polyethylene
JP2005259823A (ja) 2004-03-09 2005-09-22 Tdk Corp 有機ｐｔｃサーミスタ及びその製造方法
CN111875875A (zh) * 2020-08-08 2020-11-03 中节能(唐山)环保装备有限公司 一种具有ptc效应的微胶囊复合材料及其制备方法

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Publication number Priority date Publication date Assignee Title
US3243753A (en) * 1962-11-13 1966-03-29 Kohler Fred Resistance element
US3311862A (en) * 1964-09-09 1967-03-28 Herbert L Rees Bonded low-temperature laminated resistance heater
US3351882A (en) * 1964-10-09 1967-11-07 Polyelectric Corp Plastic resistance elements and methods for making same
GB1168770A (en) * 1965-12-01 1969-10-29 Texas Instruments Inc Self-Regulating Heaters.
US3673121A (en) * 1970-01-27 1972-06-27 Texas Instruments Inc Process for making conductive polymers and resulting compositions
US3861029A (en) * 1972-09-08 1975-01-21 Raychem Corp Method of making heater cable
US3858144A (en) * 1972-12-29 1974-12-31 Raychem Corp Voltage stress-resistant conductive articles
US4062813A (en) * 1974-02-28 1977-12-13 Andrianov Kuzma A Semiconductor material
US4124747A (en) * 1974-06-04 1978-11-07 Exxon Research & Engineering Co. Conductive polyolefin sheet element
US4197070A (en) * 1978-08-03 1980-04-08 Owens-Illinois, Inc. Apparatus for controlling a plastic extruder
US4304987A (en) * 1978-09-18 1981-12-08 Raychem Corporation Electrical devices comprising conductive polymer compositions
US4272471A (en) * 1979-05-21 1981-06-09 Raychem Corporation Method for forming laminates comprising an electrode and a conductive polymer layer
US4545926A (en) * 1980-04-21 1985-10-08 Raychem Corporation Conductive polymer compositions and devices
US4334351A (en) * 1980-05-19 1982-06-15 Raychem Corporation Novel PTC devices and their preparation
GB2096393B (en) * 1981-04-02 1986-01-02 Raychem Corp Radiation cross-linking of ptc conductive polymers
US4426633A (en) * 1981-04-15 1984-01-17 Raychem Corporation Devices containing PTC conductive polymer compositions
DE3301635A1 (de) * 1983-01-19 1984-07-26 Siemens AG, 1000 Berlin und 8000 München Herstellung von leitfaehigen kunststoffen
JP2560725B2 (ja) * 1987-05-26 1996-12-04 日立電線株式会社 有機ｐｔｃヒ−タの製造方法
US4880577A (en) * 1987-07-24 1989-11-14 Daito Communication Apparatus Co., Ltd. Process for producing self-restoring over-current protective device by grafting method
CA1337012C (en) * 1988-06-01 1995-09-19 Takahito Ishii Temperature self-controlling heating composition
US4885457A (en) * 1988-09-30 1989-12-05 Raychem Corporation Method of making a conductive polymer sheet
JP2733076B2 (ja) * 1988-11-28 1998-03-30 大東通信機株式会社 Ｐｔｃ組成物
JPH0688350B2 (ja) * 1990-01-12 1994-11-09 出光興産株式会社 正温度係数特性成形体の製造方法
US5174924A (en) * 1990-06-04 1992-12-29 Fujikura Ltd. Ptc conductive polymer composition containing carbon black having large particle size and high dbp absorption
JPH04167501A (ja) * 1990-10-31 1992-06-15 Daito Tsushinki Kk Ｐｔｃ素子
JPH0521207A (ja) * 1991-07-12 1993-01-29 Daito Tsushinki Kk Ｐｔｃ素子
US5374387A (en) * 1993-01-29 1994-12-20 The Gates Rubber Company Process for processing elastomeric compositions
GB2301223B (en) * 1995-05-26 1999-04-21 Johnson Electric Sa Polymeric type positive temperature coefficient thermistors
DE953992T1 (de) * 1995-08-15 2000-04-20 Bourns, Multifuse (Hong Kong) Ltd. Oberflächenmontierte leitfähige Polymer-Bauelemente und Verfahren zur Herstellung derselben

Also Published As

Publication number Publication date
EP0892980B1 (de) 2000-10-11
WO1997039461A1 (en) 1997-10-23
DE69703286D1 (de) 2000-11-16
TW513730B (en) 2002-12-11
DE69703286T2 (de) 2001-05-17
EP0892980A1 (de) 1999-01-27
AU2318497A (en) 1997-11-07
KR20000005396A (ko) 2000-01-25
US5814264A (en) 1998-09-29
JP2000508832A (ja) 2000-07-11

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Legal Events

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