GB1246829A - Compositions with controlled electrical properties - Google Patents

Compositions with controlled electrical properties

Info

Publication number
GB1246829A
GB1246829A GB5013968A GB5013968A GB1246829A GB 1246829 A GB1246829 A GB 1246829A GB 5013968 A GB5013968 A GB 5013968A GB 5013968 A GB5013968 A GB 5013968A GB 1246829 A GB1246829 A GB 1246829A
Authority
GB
United Kingdom
Prior art keywords
particles
ethylene
magnetic
insulation
composition
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.)
Expired
Application number
GB5013968A
Inventor
Eric Otto Forster
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1246829A publication Critical patent/GB1246829A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
    • 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
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1,246,829. Semi-conductive compositions; cables. ESSO RESEARCH & ENG. CO. 22 Oct., 1968 [27 Oct., 1967], No. 50139/68. Headings H1A and H1K. [Also in Division H2] A highly resistive composition, the resistance of which varies with applied voltage, is made by dispersing in a polymer preferably having a dielectric constant ##2 metal particles forming 20-90 wt. per cent of the composition, the particles being of sizes spread throughout the range 0À05-50Á and the average particle size (defined) being 1-30Á. The composition is used as a tape, as a heat-shrinkable tube, or as extruded material for stress-grading in cable joints or terminations and as the insulation for TV aerial wires or sparking plug coils and leads. Two cable constructions are given:-in one, successive layers of insulation outwards from the metallic core have increasing metal particle content and the outermost layer has such a high particle content (>90 wt. per cent) that the layer shows metallic conductivity and is used in operation as an earthed shield (the particle size range in this layer may be from 0.05-200 Á); in the other construction, successive layers of insulation outwardly from the metallic core have decreasing metal particle content. Suitable polymers are butyl rubber, ethylene-propylene copolymers, ethylene-propylene terpolymers with the ethylene and propylene in the main chain and dienes in side chains (EPDM), styrene-butadiene rubber, polyethylene, polyvinylchloride, and mixtures of these materials. The particles may be of elemental metals, of magnetic alloys, or of non-magnetic alloys. Examples are:-Mg, Fe, Co, Ni, Pt, Ag, Cu, Au, Zn, Al; Fe-Ni, Co-Ni, Cu 2 MnAl, Cu 2 MnSn (magnetic); Cu-Sn, Cu-Zn, and Al-Mg (non- magnetic). (A comparative example was Fe 2 O 3 particles.) The particle mix may be prepared for example by sieving through 500 mesh and mixing the product with colloidal particles (Ca 0.05 Á) in a suitable proportion. Organosilicon compounds may be added to the polymer mix (or may be used to treat the particles) to ensure good bonding of the metal particles. In two specific examples Fe and Al particles respectively are used-in addition various organic additives and small quantities of ZnO and Pb 3 O 4 are included.
GB5013968A 1967-10-27 1968-10-22 Compositions with controlled electrical properties Expired GB1246829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67865567A 1967-10-27 1967-10-27

Publications (1)

Publication Number Publication Date
GB1246829A true GB1246829A (en) 1971-09-22

Family

ID=24723729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5013968A Expired GB1246829A (en) 1967-10-27 1968-10-22 Compositions with controlled electrical properties

Country Status (5)

Country Link
BE (1) BE722893A (en)
DE (1) DE1805353A1 (en)
FR (1) FR1590238A (en)
GB (1) GB1246829A (en)
NL (1) NL6815380A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436519A1 (en) * 1978-09-14 1980-04-11 Raychem Ltd ENCLOSURE FOR TERMINATION OR CONNECTION OF ELECTRIC CABLES, METHOD FOR PROTECTING SUCH A TERMINATION OR SUCH A CONNECTION, PROTECTIVE SLEEVE FOR TERMINATION OR CABLE SPLICE
US4390745A (en) 1978-12-01 1983-06-28 Raychem Gmbh Enclosures for electrical apparatus, cable and enclosure combinations, and kits and methods for their construction
GB2135138A (en) * 1983-02-08 1984-08-22 Raychem Gmbh Electrical stress control
EP1150311A2 (en) * 2000-04-27 2001-10-31 TDK Corporation Composite magnetic material and composite dielectric material for electronic parts
EP2261278A1 (en) * 2003-11-14 2010-12-15 Wild River Consulting Group, LLC Metal polymer composite, a method for its extrusion and shaped articles made therefrom
US8487034B2 (en) 2008-01-18 2013-07-16 Tundra Composites, LLC Melt molding polymer composite and method of making and using the same
US8841358B2 (en) 2009-04-29 2014-09-23 Tundra Composites, LLC Ceramic composite
US9105382B2 (en) 2003-11-14 2015-08-11 Tundra Composites, LLC Magnetic composite

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH409790A (en) * 1963-12-26 1966-10-15 Atlantic Fabrique D Horlogerie Wristwatch whose bracelet is a curb chain
BE886846Q (en) * 1977-11-29 1981-04-16 Mayer Ferdy HIGH FREQUENCY ANTI-PEST WIRE OR CABLE
JPS56160706A (en) * 1980-04-17 1981-12-10 Grace W R & Co Conductive plastic product, composition therefore and method of improving conductivity thereof
EP0760176B2 (en) * 1994-05-18 2002-10-09 Minnesota Mining And Manufacturing Company Cylindrical radially shrinkable sleeve for an electrical cable and composition thereof
US5756936A (en) * 1994-05-18 1998-05-26 Minnesota Mining And Manufacturing Company Cylindrical radially shrinkable sleeve for an electrical cable and composition thereof

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383131A (en) 1978-09-14 1983-05-10 Raychem Limited Shielded electrical cable joints and terminations and sleeve and method for forming same
FR2436519A1 (en) * 1978-09-14 1980-04-11 Raychem Ltd ENCLOSURE FOR TERMINATION OR CONNECTION OF ELECTRIC CABLES, METHOD FOR PROTECTING SUCH A TERMINATION OR SUCH A CONNECTION, PROTECTIVE SLEEVE FOR TERMINATION OR CABLE SPLICE
US4390745A (en) 1978-12-01 1983-06-28 Raychem Gmbh Enclosures for electrical apparatus, cable and enclosure combinations, and kits and methods for their construction
GB2135138A (en) * 1983-02-08 1984-08-22 Raychem Gmbh Electrical stress control
US4738318A (en) * 1983-02-08 1988-04-19 Raychem Gmbh Electrical stress control
EP1150311A2 (en) * 2000-04-27 2001-10-31 TDK Corporation Composite magnetic material and composite dielectric material for electronic parts
EP1150311A3 (en) * 2000-04-27 2003-03-12 TDK Corporation Composite magnetic material and composite dielectric material for electronic parts
US7060350B2 (en) 2000-04-27 2006-06-13 Tdk Corporation Composite magnetic material and magnetic molding material, magnetic powder compression molding material, and magnetic paint using the composite magnetic material, composite dielectric material and molding material, powder compression molding material, paint, prepreg, and substrate using the composite dielectric material, and electronic part
US9105382B2 (en) 2003-11-14 2015-08-11 Tundra Composites, LLC Magnetic composite
EP2261278A1 (en) * 2003-11-14 2010-12-15 Wild River Consulting Group, LLC Metal polymer composite, a method for its extrusion and shaped articles made therefrom
EP2270085A1 (en) * 2003-11-14 2011-01-05 Wild River Consulting Group, LLC Metal polymer composite, a method for its extrusion and shaped articles made therefrom
US8487034B2 (en) 2008-01-18 2013-07-16 Tundra Composites, LLC Melt molding polymer composite and method of making and using the same
US9153377B2 (en) 2008-01-18 2015-10-06 Tundra Composites, LLC Magnetic polymer composite
US8841358B2 (en) 2009-04-29 2014-09-23 Tundra Composites, LLC Ceramic composite
US9249283B2 (en) 2009-04-29 2016-02-02 Tundra Composites, LLC Reduced density glass bubble polymer composite
US9376552B2 (en) 2009-04-29 2016-06-28 Tundra Composites, LLC Ceramic composite
US9771463B2 (en) 2009-04-29 2017-09-26 Tundra Composites, LLC Reduced density hollow glass microsphere polymer composite
US10508187B2 (en) 2009-04-29 2019-12-17 Tundra Composites, LLC Inorganic material composite
US11041060B2 (en) 2009-04-29 2021-06-22 Tundra Composites, LLC Inorganic material composite
US11767409B2 (en) 2009-04-29 2023-09-26 Tundra Composites, LLC Reduced density hollow glass microsphere polymer composite

Also Published As

Publication number Publication date
NL6815380A (en) 1969-04-29
FR1590238A (en) 1970-04-13
BE722893A (en) 1969-04-25
DE1805353A1 (en) 1969-06-26

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