GB514156A - Improvements in or relating to the manufacture of electric condensers - Google Patents

Improvements in or relating to the manufacture of electric condensers

Info

Publication number
GB514156A
GB514156A GB906438A GB906438A GB514156A GB 514156 A GB514156 A GB 514156A GB 906438 A GB906438 A GB 906438A GB 906438 A GB906438 A GB 906438A GB 514156 A GB514156 A GB 514156A
Authority
GB
United Kingdom
Prior art keywords
hydrocarbons
styrene
mixture
sulphonic acid
relating
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
GB906438A
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.)
British Insulated Cables Ltd
Original Assignee
British Insulated Cables 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 British Insulated Cables Ltd filed Critical British Insulated Cables Ltd
Priority to GB906438A priority Critical patent/GB514156A/en
Publication of GB514156A publication Critical patent/GB514156A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00Fixed capacitors; Processes of their manufacture
    • H01G4/002Details
    • H01G4/018Dielectrics
    • H01G4/06Solid dielectrics
    • H01G4/14Organic dielectrics
    • H01G4/18Organic dielectrics of synthetic material, e.g. derivatives of cellulose

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Organic Insulating Materials (AREA)

Abstract

514,156. Condensers. BRITISH INSULATED CABLES, Ltd., BRISLEE, F. J., WELBOURN B., HIGHAM, H., and QUAYLE, J. C. March 24, 1938, No. 9064. Drawings to Specification. [Class 37] [Also in Group IV] A condenser has, as dielectric, layers of highly polymerized styrene having a molecular weight of 60,000 to 180,000. The styrene may be plasticised by the addition of a hydrocarbon, or mixture of hydrocarbons, free from all traces of reagents or by-products other than hydrocarbons, such as diamyl naphthalene, suitably treated; or a mixture of polymers of alpha-methyl styrene obtained by a mild polymerization in the presence of 80 per cent. sulphuric acid, or an organic sulphonic acid such as diisopropyl benzene sulphonic acid. Specification 438,329, [Group XXXV], is referred to.
GB906438A 1938-03-24 1938-03-24 Improvements in or relating to the manufacture of electric condensers Expired GB514156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB906438A GB514156A (en) 1938-03-24 1938-03-24 Improvements in or relating to the manufacture of electric condensers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB906438A GB514156A (en) 1938-03-24 1938-03-24 Improvements in or relating to the manufacture of electric condensers

Publications (1)

Publication Number Publication Date
GB514156A true GB514156A (en) 1939-11-01

Family

ID=9864706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB906438A Expired GB514156A (en) 1938-03-24 1938-03-24 Improvements in or relating to the manufacture of electric condensers

Country Status (1)

Country Link
GB (1) GB514156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455890A (en) * 1943-01-02 1948-12-07 Anglo Iranian Oil Co Ltd Polystyrene-mineral oil extract plastic composition
US2665400A (en) * 1954-01-05 Electric capacitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665400A (en) * 1954-01-05 Electric capacitor
US2455890A (en) * 1943-01-02 1948-12-07 Anglo Iranian Oil Co Ltd Polystyrene-mineral oil extract plastic composition

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