GB578298A - Improvements in electric cables - Google Patents

Improvements in electric cables

Info

Publication number
GB578298A
GB578298A GB99742A GB99742A GB578298A GB 578298 A GB578298 A GB 578298A GB 99742 A GB99742 A GB 99742A GB 99742 A GB99742 A GB 99742A GB 578298 A GB578298 A GB 578298A
Authority
GB
United Kingdom
Prior art keywords
butadiene
polyisobutylene
polymerized
copolymer
conductor
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
GB99742A
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.)
COMMERCIAL SECRETARIES Ltd
Original Assignee
COMMERCIAL SECRETARIES 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 COMMERCIAL SECRETARIES Ltd filed Critical COMMERCIAL SECRETARIES Ltd
Priority to GB99742A priority Critical patent/GB578298A/en
Publication of GB578298A publication Critical patent/GB578298A/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
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat

Landscapes

  • Organic Insulating Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

In an electric cable, the rubber insulation is protected against the action of external air or air trapped between the strands of the conductor or between the conductor and insulation by an outer and/or inner layer of a composition comprising a mixture of polyisobutylene with a synthetic rubber-like material consisting of (a) polymerized-chloro butadiene, or (b) a copolymer of butadiene and acrylic acid nitrile, the ratio of the polyisobutylene to the synthetic rubber-like material being greater than 4 to 1 and not greater than 5 to 1. Solid polymers of ethylene may be incorporated in the first composition. The outer layer is enclosed by a thin covering of a material which is at least temporarily heat-resistant, e.g. a thin film of "Cellophane" (Registered Trade Mark), or cellulose triacetate or a layer of polymerized 2-chlorbutadiene or a copolymer of butadiene. Examples of suitable compositions are given. Specification 530,512 is referred to.
GB99742A 1942-01-23 1942-01-23 Improvements in electric cables Expired GB578298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB99742A GB578298A (en) 1942-01-23 1942-01-23 Improvements in electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB99742A GB578298A (en) 1942-01-23 1942-01-23 Improvements in electric cables

Publications (1)

Publication Number Publication Date
GB578298A true GB578298A (en) 1946-06-24

Family

ID=9714199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB99742A Expired GB578298A (en) 1942-01-23 1942-01-23 Improvements in electric cables

Country Status (1)

Country Link
GB (1) GB578298A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611758A (en) * 1948-10-01 1952-09-23 Goodrich Co B F Steam resistant isoolefin-diolefin copolymer rubbery composition
US2864882A (en) * 1953-07-06 1958-12-16 Minnesota Mining & Mfg Plastic filler in strip form and electrical connections coated therewith
USRE28688E (en) 1960-10-31 1976-01-20 Raychem Corporation Solid heat-flowable dispersed phase in a crosslinked elastomer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611758A (en) * 1948-10-01 1952-09-23 Goodrich Co B F Steam resistant isoolefin-diolefin copolymer rubbery composition
US2864882A (en) * 1953-07-06 1958-12-16 Minnesota Mining & Mfg Plastic filler in strip form and electrical connections coated therewith
USRE28688E (en) 1960-10-31 1976-01-20 Raychem Corporation Solid heat-flowable dispersed phase in a crosslinked elastomer

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