IT1096357B - Composizioni di ptc - Google Patents

Composizioni di ptc

Info

Publication number
IT1096357B
IT1096357B IT23558/78A IT2355878A IT1096357B IT 1096357 B IT1096357 B IT 1096357B IT 23558/78 A IT23558/78 A IT 23558/78A IT 2355878 A IT2355878 A IT 2355878A IT 1096357 B IT1096357 B IT 1096357B
Authority
IT
Italy
Prior art keywords
ptc
compositions
Prior art date
Application number
IT23558/78A
Other languages
English (en)
Other versions
IT7823558A0 (it
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 IT7823558A0 publication Critical patent/IT7823558A0/it
Application granted granted Critical
Publication of IT1096357B publication Critical patent/IT1096357B/it

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—Polyethene
    • 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—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • 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)
IT23558/78A 1977-05-18 1978-05-18 Composizioni di ptc IT1096357B (it)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IT7823558A0 IT7823558A0 (it) 1978-05-18
IT1096357B true IT1096357B (it) 1985-08-26

Family

ID=25172666

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23558/78A IT1096357B (it) 1977-05-18 1978-05-18 Composizioni di ptc

Country Status (7)

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

Families Citing this family (14)

* 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
DE3017826A1 (de) * 1979-05-10 1980-11-20 Sunbeam Corp Flexible heizelemente und verfahren zu deren herstellung
US4450496A (en) * 1979-08-16 1984-05-22 Raychem Corporation Protection of certain electrical systems by use of PTC device
EP0026571B1 (en) * 1979-08-16 1985-01-16 RAYCHEM CORPORATION (a California corporation) Protection of electrical systems using ptc devices
US4591700A (en) * 1980-05-19 1986-05-27 Raychem Corporation PTC compositions
CA1168433A (en) * 1980-05-19 1984-06-05 Umesh K. Sopory Ptc conductive polymers and devices comprising them
US4448824A (en) * 1982-01-28 1984-05-15 Raychem Corporation Wraparound protective closure
DE3688715T3 (de) 1985-03-30 1999-05-06 Hitachi Ltd 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
DK87287A (da) 1986-02-20 1987-08-21 Raychem Corp Fremgangsmaade og apparat for anvendelse af ionbyttemateriale
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
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
GB1167551A (en) * 1965-12-01 1969-10-15 Texas Instruments Inc Heaters and Methods of Making Same
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 -
US4055526A (en) * 1974-03-29 1977-10-25 Shin Kiyokawa Planar heating element and production thereof
FR2321751A1 (fr) * 1975-08-04 1977-03-18 Raychem Corp Perfectionnement aux compositions a coefficient de temperature positif
FR2368127A1 (fr) * 1976-10-15 1978-05-12 Raychem Corp Compositions a coefficient de temperature positif et dispositifs en comprenant

Also Published As

Publication number Publication date
GB1604904A (en) 1981-12-16
FR2391247B1 (it) 1985-05-10
DE2821799A1 (de) 1978-11-30
IT7823558A0 (it) 1978-05-18
CA1115045A (en) 1981-12-29
FR2391247A1 (fr) 1978-12-15
JPS5416697A (en) 1979-02-07
BE867236A (fr) 1978-11-20

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