GB1433129A – Materials having non-linear resistance characteristics
– Google Patents
GB1433129A – Materials having non-linear resistance characteristics
– Google Patents
Materials having non-linear resistance characteristics
Info
Publication number
GB1433129A
GB1433129A
GB4075272A
GB4075272A
GB1433129A
GB 1433129 A
GB1433129 A
GB 1433129A
GB 4075272 A
GB4075272 A
GB 4075272A
GB 4075272 A
GB4075272 A
GB 4075272A
GB 1433129 A
GB1433129 A
GB 1433129A
Authority
GB
United Kingdom
Prior art keywords
ethylene
compositions
silicon carbide
polyethylene
copolymer
Prior art date
1972-09-01
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
GB4075272A
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.)
1972-09-01
Filing date
1972-09-01
Publication date
1976-04-22
1972-09-01
Application filed by Raychem Ltd
filed
Critical
Raychem Ltd
1972-09-01
Priority to GB4075272A
priority
Critical
patent/GB1433129A/en
1973-08-31
Priority to DE2344067A
priority
patent/DE2344067C2/en
1973-08-31
Priority to FR7331548A
priority
patent/FR2198226B1/fr
1973-08-31
Priority to US05/393,509
priority
patent/US3950604A/en
1975-12-16
Priority to US05/641,347
priority
patent/US4252692A/en
1976-04-22
Publication of GB1433129A
publication
Critical
patent/GB1433129A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
H02G15/1806—Heat shrinkable sleeves
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
B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
B29C61/06—Making preforms having internal stresses, e.g. plastic memory
B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
B29C61/0616—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms layered or partially layered preforms, e.g. preforms with layers of adhesive or sealing compositions
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
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
H01C7/10—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 voltage responsive, i.e. varistors
H01C7/105—Varistor cores
H01C7/118—Carbide, e.g. SiC type
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
H02G15/02—Cable terminations
H02G15/06—Cable terminating boxes, frames or other structures
H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S174/00—Electricity: conductors and insulators
Y10S174/08—Shrinkable tubes
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S428/00—Stock material or miscellaneous articles
Y10S428/913—Material designed to be responsive to temperature, light, moisture
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/00—Stock material or miscellaneous articles
Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/00—Stock material or miscellaneous articles
Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
Y10T428/259—Silicic material
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/00—Stock material or miscellaneous articles
Y10T428/31504—Composite [nonstructural laminate]
Y10T428/31652—Of asbestos
Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/00—Stock material or miscellaneous articles
Y10T428/31504—Composite [nonstructural laminate]
Y10T428/31855—Of addition polymer from unsaturated monomers
Y10T428/31909—Next to second addition polymer from unsaturated monomers
Y10T428/31924—Including polyene monomers
Abstract
1433129 Polymer compositions with non- linear electrical resistance RAYCHEM Ltd 31 Aug 1973 [1 Sept 1972] 40752/72 Heading C3P [Also in Divisions H1 and H2] Compositions having non-linear electrical resistance characteristics comprise (1) either an ethylene/propylene copolymer or ethylene/ propylene/non – conjugated diene terpolymer rubber containing at least 65 weight per cent of ethylene together with an ethylene/unsaturated aliphatic ester copolymer or a butadiene/acrylonitrile copolymer rubber containing 10 to 40 weight per cent of acrylonitrile, optionally together with an ethylene/unsaturated aliphatic ester copolymer, (2) low density polyethylene, having dispersed therein (3) particulate silicon carbide of size finer than 400 grit. The ester may be a C 1-8 alkyl acrylate, methacrylate, maleate, fumarate or itaconate, or vinyl acetate. The silicon carbide may contain impurities which modify its electrical conductivity, e.g. aluminium, boron, titanium and/or zirconium. The compositions may also contain particulate conducting fillers, e.g. carbon black or finely divided zinc, aluminium, chromium, copper, bronze, brass, iron, lead, silver or nickel. The compositions may be crosslinked, e.g. by irradiation or with an organic peroxide, optionally together with a polyunsaturated cross-linking agent, and expanded to provided heat-shrinkable stress-control coverings for electrical parts, e.g. cable terminations and switch components. Examples describe compositions comprising one or more EPDM rubbers, ethylene/ethyl acrylate copolymer, polyethylene, antioxidant, silicon carbide and triallyl cyanurate together with (1, 3 and 5) zinc stearate, (2) silica, a silane and 2,5-dimethyl – 2,5 – di – t – butylperoxyhexyne – 3, (4) carbon black, emulsifiable polyethylene and said peroxide, (6) aluminium dust, (7 and 8) copper powder and (9 and 10) iron powder; and (11) a composition comprising butadiene/acrylonitrile rubber, polyethylene, antioxidant, silicon carbide, triallyl cyanurate and said peroxide.
GB4075272A
1972-09-01
1972-09-01
Materials having non-linear resistance characteristics
Expired
GB1433129A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
GB4075272A
GB1433129A
(en)
1972-09-01
1972-09-01
Materials having non-linear resistance characteristics
DE2344067A
DE2344067C2
(en)
1972-09-01
1973-08-31
Compositions of substances with non-linear electrical resistance characteristics
FR7331548A
FR2198226B1
(en)
1972-09-01
1973-08-31
US05/393,509
US3950604A
(en)
1972-09-01
1973-08-31
Heat-shrinkable articles having non-linear electrical resistance characteristics
US05/641,347
US4252692A
(en)
1972-09-01
1975-12-16
Materials having non-linear electrical resistance characteristics
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4075272A
GB1433129A
(en)
1972-09-01
1972-09-01
Materials having non-linear resistance characteristics
Publications (1)
Publication Number
Publication Date
GB1433129A
true
GB1433129A
(en)
1976-04-22
Family
ID=10416444
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4075272A
Expired
GB1433129A
(en)
1972-09-01
1972-09-01
Materials having non-linear resistance characteristics
Country Status (4)
Country
Link
US
(2)
US3950604A
(en)
DE
(1)
DE2344067C2
(en)
FR
(1)
FR2198226B1
(en)
GB
(1)
GB1433129A
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2432535A1
(en)
*
1978-04-07
1980-02-29
Raychem Ltd
Crosslinked low density ethylene! (co)polymer compsns. – for prodn. of heat shrinkable sleeves, electrical insulators and semi permeable membranes for electrolytic cells
US4275180A
(en)
1977-04-12
1981-06-23
Raychem Limited
Polymer compositions
US4458103A
(en)
*
1982-03-10
1984-07-03
The Furukawa Electric Co., Ltd.
Insulating joint for rubber or plastic insulated power cable
GB2149802A
(en)
*
1983-11-16
1985-06-19
Standard Telephones Cables Ltd
Oil resistant flame retardent ethylene polymer compositions
US4576993A
(en)
*
1978-09-20
1986-03-18
Raychem Limited
Low density polyethylene polymeric compositions
GB2195348A
(en)
*
1986-09-20
1988-04-07
Kabelmetal Electro Gmbh
Elongate product covering material
Families Citing this family (107)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1470501A
(en)
*
1973-03-20
1977-04-14
Raychem Ltd
Polymer compositions for electrical use
US4016356A
(en)
*
1973-09-10
1977-04-05
Raychem Limited
Heat recoverable article
US4045604A
(en)
*
1974-10-08
1977-08-30
Raychem Limited
Recoverable article with outwardly extending hollow heat flanges; kit including such article and a cylindrical substrate; and method of making such article
GB1526397A
(en)
*
1974-10-08
1978-09-27
Raychem Ltd
Heat-recoverable article suitable for high voltage use
US4187389A
(en)
*
1975-04-11
1980-02-05
Sola Basic Industries, Inc.
Shielded electrical conductor terminations and methods of making same
US4286023A
(en)
*
1976-10-04
1981-08-25
Union Carbide Corporation
Article of manufacture, the cross-linked product of a semi-conductive composition bonded to a crosslinked polyolefin substrate
US4246142A
(en)
*
1976-10-04
1981-01-20
Union Carbide Corporation
Vulcanizable semi-conductive compositions
US4105481A
(en)
*
1976-11-01
1978-08-08
Raychem Corporation
Encapsulation method for electrical elements
FR2454205A2
(en)
*
1978-11-21
1980-11-07
Pirelli Treficable
Variable-resistance elastomer compsn. – for protecting and insulating ends of high voltage cables
US4275261A
(en)
*
1978-01-11
1981-06-23
Trefimetaux
End piece for high voltage cables
US4163117A
(en)
*
1978-04-19
1979-07-31
Raychem Corporation
Heat-recoverable articles and their use
US4383131A
(en)
*
1978-09-14
1983-05-10
Raychem Limited
Shielded electrical cable joints and terminations and sleeve and method for forming same
AU531523B2
(en)
*
1978-12-01
1983-08-25
Raychem Gmbh
Electrical apparatus
US4304616A
(en)
*
1979-04-02
1981-12-08
Raychem Corporation
Radially shrinkable sleeves
US4251304A
(en)
*
1979-04-19
1981-02-17
Raychem Corporation
Heat-recoverable articles and their use
BR8101228A
(en)
*
1980-03-03
1981-09-08
Minnesota Mining & Mfg
ELASTOMERIC COMPOSITION, ELASTOMERIC TUBULAR ARTICLE AND ARTICLE FOR SEAMLESS USE AND TERMINATION OF ELECTRIC POWER CABLES
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*
1980-07-15
1983-12-06
Western Electric Company, Inc.
Method for forming seals with heat shrinkable materials
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*
1980-08-13
1982-05-25
Chomerics, Inc.
High powered over-voltage protection
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(en)
*
1981-09-21
1986-04-30
Raychem Corp
Electrical bushing and method of manufacture thereof
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*
1982-06-15
1984-05-29
National Distillers And Chemical Corporation
Heat distortion-resistant thermoplastic semi-conductive composition
JPS59129118A
(en)
*
1983-01-15
1984-07-25
Fujikura Ltd
Thermally shrinkable plastic molded object
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(en)
*
1983-01-24
1984-11-20
Hallmark Cards, Inc.
Decorating with shrink film
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(en)
*
1983-02-08
1983-03-16
Raychem Gmbh
Electrical stress control
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*
1983-05-26
1983-06-29
Raychem Sa Nv
Electrically heat-recoverable article
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*
1983-09-07
1986-07-22
Denki Kagaku Kogyo Kabushiki Kaisha
Resin composition having electromagnetic wave shielding effort
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(en)
*
1983-12-13
1984-01-18
Raychem Ltd
Electrically insulating articles
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(en)
*
1984-04-06
1987-01-06
Versteegh Willem M
Heat recoverable coextruded articles
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*
1984-04-06
1991-01-31
Raychem Corp
Heat-recoverable tubular composite articles and their production
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*
1984-05-07
1986-02-11
Raychem Corporation
Electrically heat-recoverable assembly
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*
1984-07-25
1986-03-11
Raychem Corporation
Switch unit for use with heat-recoverable articles
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1985-02-05
1986-08-07
Fritz Studer Ag, Thun
METHOD FOR PRODUCING OBJECTS, IN PARTICULAR MACHINE PARTS MADE OF POLYMER CONCRETE, AND MACHINE PARTS MADE OF POLYMER CONCRETE
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1985-05-02
1988-01-26
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Electrical connection sealing device
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1985-05-02
1990-10-16
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Cable sealing
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1985-07-19
1989-09-15
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LUBRICATION SYSTEM.
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1986-09-23
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1986-02-20
1992-01-23
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1986-07-10
1988-02-23
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Electrical overstress protection material and process
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1987-11-25
1989-03-21
Minnesota Mining And Manufacturing Company
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*
1987-11-25
1992-04-21
Minnesota Mining And Manufacturing Company
Electromagnetic radiation suppression cover
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*
1988-01-11
1990-12-11
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Overvoltage protection device and material
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*
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1988-08-10
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1988-11-18
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Also Published As
Publication number
Publication date
US3950604A
(en)
1976-04-13
FR2198226B1
(en)
1977-05-13
DE2344067C2
(en)
1985-02-21
DE2344067A1
(en)
1974-04-11
US4252692A
(en)
1981-02-24
FR2198226A1
(en)
1974-03-29
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Legal Events
Date
Code
Title
Description
1976-09-08
PS
Patent sealed [section 19, patents act 1949]
1993-04-28
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19920831
