GB711079A - Improvements in the production of high-grade dielectric insulations from synthetic thermoplastic substances - Google Patents

Improvements in the production of high-grade dielectric insulations from synthetic thermoplastic substances

Info

Publication number
GB711079A
GB711079A GB1464/52A GB146452A GB711079A GB 711079 A GB711079 A GB 711079A GB 1464/52 A GB1464/52 A GB 1464/52A GB 146452 A GB146452 A GB 146452A GB 711079 A GB711079 A GB 711079A
Authority
GB
United Kingdom
Prior art keywords
thermoplastic
solvents
specified
substance
liquid
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
GB1464/52A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB711079A publication Critical patent/GB711079A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1834—Construction of the insulation between the conductors

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Organic Insulating Materials (AREA)

Abstract

Porous dielectric insulations of organic thermoplastic substances are prepared by exposing conductors covered with a shape-resistant thermo-plastic substance to the action of liquid mixtures consisting of solvents for the thermoplastic substance and liquids which only swell or do not dissolve the thermoplastic substance, at least one of the components of the liquid mixtures having a boiling point lower than the softening point of the thermoplastic substance and then heating to above the softening point. Specified thermoplastic substances are polystyrene, polyethylene, polyisobutylene, polyvinyl chloride, polyvinylidene chloride, polyvinyl ethers, polymethacrylic compounds, polyvinyl esters of organic acids, polyamides and polyurethanes. Specified polystyrene solvents are benzene, toluene, xylene and methylene chloride and specified non-solvents are pentane, heptane, hexane and petroleum ether. It is preferred that the liquid mixture contains more than 30 per cent. of the non-solvent liquid. The heating may be effected by means of infra-red radiations, steam, hot air or hot water.
GB1464/52A 1951-01-19 1952-01-18 Improvements in the production of high-grade dielectric insulations from synthetic thermoplastic substances Expired GB711079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE711079X 1951-01-19

Publications (1)

Publication Number Publication Date
GB711079A true GB711079A (en) 1954-06-23

Family

ID=6619924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1464/52A Expired GB711079A (en) 1951-01-19 1952-01-18 Improvements in the production of high-grade dielectric insulations from synthetic thermoplastic substances

Country Status (1)

Country Link
GB (1) GB711079A (en)

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