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GB2019412B - Cross-linked low density linear polyethylenes - Google Patents

Cross-linked low density linear polyethylenes

Info

Publication number
GB2019412B
GB2019412B GB7911916A GB7911916A GB2019412B GB 2019412 B GB2019412 B GB 2019412B GB 7911916 A GB7911916 A GB 7911916A GB 7911916 A GB7911916 A GB 7911916A GB 2019412 B GB2019412 B GB 2019412B
Authority
GB
United Kingdom
Prior art keywords
cross
low density
density linear
linear polyethylenes
linked low
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
GB7911916A
Other versions
GB2019412A (en
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
Priority claimed from US05/894,511 external-priority patent/US4275180A/en
Application filed by Raychem Ltd filed Critical Raychem Ltd
Publication of GB2019412A publication Critical patent/GB2019412A/en
Application granted granted Critical
Publication of GB2019412B publication Critical patent/GB2019412B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439Auxiliary devices
    • G02B6/4471Terminating devices ; Cable clamps
    • G02B6/4476Terminating devices ; Cable clamps with heat-shrinkable elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/26Polyalkenes
    • B01D71/261Polyethylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20Conductive material dispersed in non-conductive organic material
    • H01B1/24Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • H01B3/441Insulators 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/08Cable junctions
    • H02G15/18Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/1806Heat shrinkable sleeves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Optics & Photonics (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
GB7911916A 1978-04-07 1979-04-05 Cross-linked low density linear polyethylenes Expired GB2019412B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/894,511 US4275180A (en) 1977-04-12 1978-04-07 Polymer compositions

Publications (2)

Publication Number Publication Date
GB2019412A GB2019412A (en) 1979-10-31
GB2019412B true GB2019412B (en) 1982-09-15

Family

ID=25403178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911916A Expired GB2019412B (en) 1978-04-07 1979-04-05 Cross-linked low density linear polyethylenes

Country Status (3)

Country Link
JP (1) JPS559677A (en)
BE (1) BE875387A (en)
GB (1) GB2019412B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427725A (en) 1982-02-11 1984-01-24 Raychem Limited Dimensionally-recoverable article
US6100357A (en) * 1988-12-19 2000-08-08 Viskase Corporation Heat shrinkable very low density polyethylene terpolymer film

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322575A (en) 1978-12-13 1982-03-30 Raychem Limited Flame retardant compositions
JPS56152853A (en) * 1980-04-30 1981-11-26 Nippon Oil Co Ltd Polyethylene resin composition
JPS56147838A (en) * 1980-04-18 1981-11-17 Nippon Oil Co Ltd Composition for forming insulation layer
JPS5829841A (en) * 1981-08-14 1983-02-22 Asahi Chem Ind Co Ltd Improve polyethylene composition
CA1195792A (en) * 1981-09-16 1985-10-22 William J. Michie, Jr. Drip irrigation tubing cross-linked by irradiation and extrudable tube forming composition
GB2110885A (en) * 1981-10-19 1983-06-22 Raychem Ltd Fire protection for an electrical conduit
JPS58118839A (en) * 1982-01-08 1983-07-15 Hitachi Cable Ltd Semiconductive composition
ZA832777B (en) * 1982-04-27 1984-11-28 Bp Chem Int Ltd Polyethylene blend and film
US4451536A (en) * 1982-06-15 1984-05-29 National Distillers And Chemical Corporation Heat distortion-resistant thermoplastic semi-conductive composition
JPS58225504A (en) * 1982-06-23 1983-12-27 住友電気工業株式会社 Crosslinked polyethylene cable
US4816517A (en) * 1982-09-29 1989-03-28 Vulkor, Incorporated Crosslinked polymer interdispersions containing polyolefin and method of making
GB2128394B (en) * 1982-10-01 1987-02-11 Raychem Ltd Flame retarded cladding
US4525257A (en) * 1982-12-27 1985-06-25 Union Carbide Corporation Low level irradiated linear low density ethylene/alpha-olefin copolymers and film extruded therefrom
GB8300220D0 (en) * 1983-01-06 1983-02-09 Raychem Ltd Arrangement for enclosing substrates
US4631098A (en) * 1983-01-06 1986-12-23 Raychem Limited Heat-recoverable article
US4624720A (en) * 1983-01-06 1986-11-25 Raychem Ltd Dimensionally heat-recoverable article
US4485217A (en) * 1983-04-13 1984-11-27 Mobil Oil Corporation Method for reducing shrinkage of injection molded linear low density polyethylene
US4678836A (en) * 1984-01-03 1987-07-07 The Dow Chemical Company Blends of ethylene/acrylic acid copolymers with linear low density polyethylene
JPS60231747A (en) * 1984-05-02 1985-11-18 Mitsui Petrochem Ind Ltd Thermoplastic elastomer
SE8402396L (en) * 1984-05-03 1985-11-04 Unifos Kemi Ab CABLE INSULATION COMPOSITION
US4551380A (en) * 1984-05-10 1985-11-05 W. R. Grace & Co., Cryovac Div. Oriented heat-sealable multilayer packaging film
US4514465A (en) * 1984-05-30 1985-04-30 W. R. Grace & Co., Cryovac Div. Storm window film comprising at least five layers
US4643943A (en) * 1984-05-30 1987-02-17 W. R. Grace & Co., Cryovac Div. Multi-layer polyolefin shrink film
US4614764A (en) * 1985-03-06 1986-09-30 Mobil Oil Corporation Linear low density ethylene polymers blended with modified linear low density ethylene polymers
JPS61225236A (en) * 1985-03-30 1986-10-07 Mitsubishi Cable Ind Ltd Resin composition
JPS61228045A (en) * 1985-03-30 1986-10-11 Mitsubishi Cable Ind Ltd Resin composition
GB8614369D0 (en) * 1986-06-12 1986-07-16 Raychem Ltd Blocking arrangement
US4839235A (en) * 1986-06-30 1989-06-13 W. R. Grace & Co. Oxygen barrier film
JPS6372746A (en) * 1986-09-17 1988-04-02 Nippon Oil Co Ltd Thermoplastic elastomer composition
US4760116A (en) * 1986-11-26 1988-07-26 E. I. Du Pont De Nemours And Company Monolayer polyethylene shrink film
JPH0356517A (en) * 1989-07-26 1991-03-12 Sumitomo Bakelite Co Ltd Production of silane-grafted copolymer and insulated electric wire therefrom
US5508319A (en) * 1991-06-21 1996-04-16 Montell North America Inc. High melt strength, ethylene polymer, process for making it, and use thereof
DE4313153C1 (en) * 1993-04-22 1994-05-05 Stewing Nachrichtentechnik Increasing tear resistance in heat shrinkable plastic film - extruding strip, partially cross-linking, stretching at temp. below crystalline m.pt. and finally cross-linking during shrinkage.
GB9310235D0 (en) * 1993-05-18 1993-06-30 Raychem Ltd Heat-shrinkable article
DE4337116A1 (en) * 1993-10-29 1995-05-04 Cellpack Gmbh Tubular plastic film, its use and process for its manufacture
US6593386B1 (en) 1999-09-13 2003-07-15 Sealed Air Corporation (U.S.) Compitable linear and branched ethylenic polymers and foams therefrom
ATE440906T1 (en) * 2004-11-16 2009-09-15 Borealis Tech Oy CROSS-LINKABLE POLYETHYLENE COMPOSITION, ELECTRICAL CABLE CONTAINING SAME AND PRODUCTION METHOD THEREOF
ES2856924T3 (en) 2014-03-10 2021-09-28 Hickory Springs Mfg Co High temperature uncrosslinked polyethylene-based foam and manufacturing procedures
JP2023097144A (en) 2021-12-27 2023-07-07 国立大学法人大阪大学 Glass powder composite and method of producing glass powder composite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427725A (en) 1982-02-11 1984-01-24 Raychem Limited Dimensionally-recoverable article
US6100357A (en) * 1988-12-19 2000-08-08 Viskase Corporation Heat shrinkable very low density polyethylene terpolymer film
US6197909B1 (en) 1988-12-19 2001-03-06 Curwood, Inc. Heat shrinkable C2C4C6 terpolymer film

Also Published As

Publication number Publication date
JPH0322416B2 (en) 1991-03-26
GB2019412A (en) 1979-10-31
BE875387A (en) 1979-10-08
JPS559677A (en) 1980-01-23

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Legal Events

Date Code Title Description
713A Proceeding under section 13 patents act 1977
PE20 Patent expired after termination of 20 years

Effective date: 19990404