BE867236A - Compositions a coefficient de temperature positif - Google Patents

Compositions a coefficient de temperature positif

Info

Publication number
BE867236A
BE867236A BE187834A BE187834A BE867236A BE 867236 A BE867236 A BE 867236A BE 187834 A BE187834 A BE 187834A BE 187834 A BE187834 A BE 187834A BE 867236 A BE867236 A BE 867236A
Authority
BE
Belgium
Prior art keywords
compositions
temperature coefficient
positive temperature
positive
coefficient
Prior art date
Application number
BE187834A
Other languages
English (en)
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Publication of BE867236A publication Critical patent/BE867236A/fr

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Ethylene-propylene or ethylene-propylene-diene copolymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dispersion Chemistry (AREA)
  • Electromagnetism (AREA)
  • Ceramic Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)
  • Thermistors And Varistors (AREA)
BE187834A 1977-05-18 1978-05-18 Compositions a coefficient de temperature positif BE867236A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79815477A 1977-05-18 1977-05-18

Publications (1)

Publication Number Publication Date
BE867236A true BE867236A (fr) 1978-11-20

Family

ID=25172666

Family Applications (1)

Application Number Title Priority Date Filing Date
BE187834A BE867236A (fr) 1977-05-18 1978-05-18 Compositions a coefficient de temperature positif

Country Status (7)

Country Link
JP (1) JPS5416697A (fr)
BE (1) BE867236A (fr)
CA (1) CA1115045A (fr)
DE (1) DE2821799A1 (fr)
FR (1) FR2391247A1 (fr)
GB (1) GB1604904A (fr)
IT (1) IT1096357B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238812A (en) * 1978-12-01 1980-12-09 Raychem Corporation Circuit protection devices comprising PTC elements
NZ193661A (en) * 1979-05-10 1983-06-17 Sunbeam Corp Heating element conductive and ptc material
US4450496A (en) * 1979-08-16 1984-05-22 Raychem Corporation Protection of certain electrical systems by use of PTC device
ATE11349T1 (de) * 1979-08-16 1985-02-15 Raychem Corporation Ptc-vorrichtungen verwendender schutz fuer elektrische systeme.
CA1168433A (fr) * 1980-05-19 1984-06-05 Umesh K. Sopory Polymeres conducteurs ptc et dispositifs qui en contiennent
US4591700A (en) * 1980-05-19 1986-05-27 Raychem Corporation PTC compositions
US4448824A (en) * 1982-01-28 1984-05-15 Raychem Corporation Wraparound protective closure
DE3688715T3 (de) 1985-03-30 1999-05-06 Hitachi, Ltd., Tokio/Tokyo Druckverfahren vom Abtastaufzeichnungstyp und dessen Verwirklichungsvorrichtung.
US4800442A (en) 1985-08-15 1989-01-24 Canon Kabushiki Kaisha Apparatus for generating an image from a digital video signal
EP0242029B1 (fr) 1986-02-20 1991-12-11 RAYCHEM CORPORATION (a Delaware corporation) Méthode et article utilisant un matériau échangeur d'ions
JP2627894B2 (ja) * 1987-05-22 1997-07-09 大日精化工業株式会社 自己温度制御性の向上された導電性樹脂組成物
US6607679B2 (en) 2001-01-12 2003-08-19 Tdk Corporation Organic PTC thermistor
JP4729800B2 (ja) * 2001-03-13 2011-07-20 パナソニック株式会社 正抵抗温度特性抵抗体
JP5433931B2 (ja) 2007-05-11 2014-03-05 Ｎｏｋ株式会社 Ｐｔｃインク組成物の製造方法及びｐｔｃインク組成物
CN104558752A (zh) * 2013-10-25 2015-04-29 中国石油化工股份有限公司 燃气管警示板用聚乙烯树脂组合物及制造方法和燃气管警示板

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1168770A (en) * 1965-12-01 1969-10-29 Texas Instruments Inc Self-Regulating Heaters.
US3591526A (en) * 1968-01-25 1971-07-06 Polyelectric Corp Method of manufacturing a temperature sensitive,electrical resistor material
US3673121A (en) * 1970-01-27 1972-06-27 Texas Instruments Inc Process for making conductive polymers and resulting compositions
FR2089861A5 (en) * 1970-05-04 1972-01-07 Allied Chem Semiconductive polymer compn which reducesst -
DE2513362C3 (de) * 1974-03-29 1981-06-04 Shin Misato Saitama Kiyokawa Verfahren zur Herstellung eines flachen Heizelementes
FR2321751A1 (fr) * 1975-08-04 1977-03-18 Raychem Corp Perfectionnement aux compositions a coefficient de temperature positif
BE859776A (fr) * 1976-10-15 1978-04-14 Raychem Corp Compositions a coefficient de temperature positif et dispositifs en comprenant

Also Published As

Publication number Publication date
FR2391247A1 (fr) 1978-12-15
IT7823558A0 (it) 1978-05-18
IT1096357B (it) 1985-08-26
DE2821799A1 (de) 1978-11-30
CA1115045A (fr) 1981-12-29
FR2391247B1 (fr) 1985-05-10
JPS5416697A (en) 1979-02-07
GB1604904A (en) 1981-12-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: RAYCHEM CORP.

Effective date: 19910531