GB1470502A - Polymer compositions for electrical use - Google Patents

Polymer compositions for electrical use

Info

Publication number
GB1470502A
GB1470502A GB4972376A GB4972376A GB1470502A GB 1470502 A GB1470502 A GB 1470502A GB 4972376 A GB4972376 A GB 4972376A GB 4972376 A GB4972376 A GB 4972376A GB 1470502 A GB1470502 A GB 1470502A
Authority
GB
United Kingdom
Prior art keywords
compounds
crystal structure
compositions
ethylene
copper
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
GB4972376A
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.)
Raychem Ltd
Original Assignee
Raychem Ltd
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 Ltd filed Critical Raychem Ltd
Priority to GB4972376A priority Critical patent/GB1470502A/en
Publication of GB1470502A publication Critical patent/GB1470502A/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
    • 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
    • H01B3/44—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 vinyl resins; acrylic resins
    • H01B3/441—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 vinyl resins; acrylic resins from alkenes
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • 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

Abstract

1470502 Ethylene/propylene copolymer compositions RAYCHEM Ltd 19 March 1974 [20 March 1973] 49723/76 Divided out of 1470501 Heading C3P Compositions for controlling electrical stress at cable junctions and terminations comprise an ethylene/propylene copolymer having dispersed therein a particulate filler selected from (a) compounds having a perovskite type crystal structure; (b) compounds having a spinel crystal structure, other than γ-Fe 2 O 3 and spinel itself; (c) compounds having an inverse spinel crystal structure; (d) compounds having a mixed spinel crystal structure; (e) dichalcogenides of transition metals and tin; (f) AgI, Prussian blue, Rochelle salt and other alkali metal tartrates, compounds of formula XH 2 YO 4 where X is K, Rb or Cs and Y is P or As, ammonium fluoroberyllate, thiourea, ammonium sulphate and triglycine sulphate; and (g) Si 3 N 4 , the composition containing at least 10% of filler based on the weight of copolymer and having a γ-value of at least 1À5 at least at some direct current stress between 0À01 kV/mm. and 10 kV/mm. The compositions may also contain particulate electrically conductive fillers and/or silicon carbide. Examples describe compositions comprising EP and EPDM rubbers, optionally with polyethylene and ethylene/ethylacrylate copolymers; non- stoichiometric Fe 3 O 4 , Co 3 O 4 , strontium titanate, barium titanate, molybdenum disulphide, molybdenum ditelluride, molybdenum diselenide, silicon nitride, copper chromite, cobalt ferrite, manganese tetroxide, copper manganite, magnesium ferrite and zinc ferrite; and optionally finely divided carbon black, aluminium, copper, iron, manganese, chromium, lead, nickel, nickel/aluminium, zinc or silver.
GB4972376A 1974-03-19 1974-03-19 Polymer compositions for electrical use Expired GB1470502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4972376A GB1470502A (en) 1974-03-19 1974-03-19 Polymer compositions for electrical use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4972376A GB1470502A (en) 1974-03-19 1974-03-19 Polymer compositions for electrical use

Publications (1)

Publication Number Publication Date
GB1470502A true GB1470502A (en) 1977-04-14

Family

ID=10453323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4972376A Expired GB1470502A (en) 1974-03-19 1974-03-19 Polymer compositions for electrical use

Country Status (1)

Country Link
GB (1) GB1470502A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2545084A1 (en) * 1974-10-08 1976-04-29 Raychem Ltd ITEM REQUIRED BY HEAT
DE2937253A1 (en) * 1978-09-14 1980-03-27 Raychem Ltd PROTECTIVE SLEEVE FOR SHIELDED CABLE TERMINALS OR SPLICKS OR THE CONNECTIONS BETWEEN SHIELDED ELECTRICAL CABLES AND METHOD FOR THEIR PRODUCTION
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
EP0122309A1 (en) * 1983-04-15 1984-10-24 General Electric Company Polyetherimide-EPDM terpolymer blends
EP0388990A2 (en) 1986-02-20 1990-09-26 RAYCHEM CORPORATION (a Delaware corporation) Method and articles employing ion exchange material
EP0780847A3 (en) * 1995-11-22 1998-01-14 Nippon Zeon Co., Ltd. Resin composition and articles made therefrom
WO1998026431A1 (en) * 1996-12-13 1998-06-18 Hoechst Celanese Corporation Cyclic olefin polymer composites having a high dielectric constant
EP1465942A2 (en) * 2002-01-14 2004-10-13 Ansell Healthcare Products Inc. Magnetically detectable latex articles
JP2015124329A (en) * 2013-12-27 2015-07-06 株式会社フジクラ High dielectric constant rubber composition and components for power cable
JP2015124330A (en) * 2013-12-27 2015-07-06 株式会社フジクラ High dielectric constant rubber composition and components for power cable
US10438717B2 (en) 2016-04-25 2019-10-08 Eaton Intelligent Power Limited Elastomer composites with high dielectric constant

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2545084A1 (en) * 1974-10-08 1976-04-29 Raychem Ltd ITEM REQUIRED BY HEAT
DE2937253A1 (en) * 1978-09-14 1980-03-27 Raychem Ltd PROTECTIVE SLEEVE FOR SHIELDED CABLE TERMINALS OR SPLICKS OR THE CONNECTIONS BETWEEN SHIELDED ELECTRICAL CABLES AND METHOD FOR THEIR PRODUCTION
US4383131A (en) 1978-09-14 1983-05-10 Raychem Limited Shielded electrical cable joints and terminations and sleeve and method for forming same
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
EP0122309A1 (en) * 1983-04-15 1984-10-24 General Electric Company Polyetherimide-EPDM terpolymer blends
EP0388990A2 (en) 1986-02-20 1990-09-26 RAYCHEM CORPORATION (a Delaware corporation) Method and articles employing ion exchange material
US5856395A (en) * 1995-11-22 1999-01-05 Nippon Zeon Co., Ltd. Resin composition and articles made therefrom
EP0780847A3 (en) * 1995-11-22 1998-01-14 Nippon Zeon Co., Ltd. Resin composition and articles made therefrom
WO1998026431A1 (en) * 1996-12-13 1998-06-18 Hoechst Celanese Corporation Cyclic olefin polymer composites having a high dielectric constant
EP1465942A2 (en) * 2002-01-14 2004-10-13 Ansell Healthcare Products Inc. Magnetically detectable latex articles
EP1465942A4 (en) * 2002-01-14 2005-06-29 Ansell Healthcare Prod Inc Magnetically detectable latex articles
US7122593B2 (en) 2002-01-14 2006-10-17 Ansell Healthcare Products Llc Magnetically detectable latex articles
AU2003252827B2 (en) * 2002-01-14 2008-01-10 Ansell Healthcare Products Llc Magnetically detectable latex articles
US7635733B2 (en) 2002-01-14 2009-12-22 Ansell Healthcare Products Llc Magnetically detectable latex articles
JP2015124329A (en) * 2013-12-27 2015-07-06 株式会社フジクラ High dielectric constant rubber composition and components for power cable
JP2015124330A (en) * 2013-12-27 2015-07-06 株式会社フジクラ High dielectric constant rubber composition and components for power cable
US10438717B2 (en) 2016-04-25 2019-10-08 Eaton Intelligent Power Limited Elastomer composites with high dielectric constant
US11195637B2 (en) 2016-04-25 2021-12-07 Eaton Intelligent Power Limited Elastomer composites with high dielectric constant

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930319