GB629053A - Improvements in or relating to dielectric materials - Google Patents

Improvements in or relating to dielectric materials

Info

Publication number
GB629053A
GB629053A GB28235/47A GB2823547A GB629053A GB 629053 A GB629053 A GB 629053A GB 28235/47 A GB28235/47 A GB 28235/47A GB 2823547 A GB2823547 A GB 2823547A GB 629053 A GB629053 A GB 629053A
Authority
GB
United Kingdom
Prior art keywords
sulphone
mixture
aromatic compound
freezing point
halogenated aromatic
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
GB28235/47A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB629053A publication Critical patent/GB629053A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
    • H01G4/22—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
    • H01G4/221—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated characterised by the composition of the impregnant
    • H01G4/222—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated characterised by the composition of the impregnant halogenated

Abstract

629,053. Condensers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 22, 1947, No. 28235. Convention date, Dec. 4, 1941. Drawings to Specification. [Class 37] A dielectric material, especially for capacitors comprises a liquid mixture of a diaryl sulphone and at least one halogenated aromatic compound having a freezing point below that of the sulphone. Phenyl xylyl sulphone, tolyl xylyl sulphone or a mixture of these is mixed with an equal weight of diphenyl chlorinated to 50-60 per cent of maximum chlorination. The mixture may be combined with kraft paper. A halogenated aromatic compound of low freezing point, e.g. trichlorobenzene, tetrachlorbenzene, tetrachlorethylbenzene or pentachlorethylbenzene may be added, and may replace the diphenyl chloride. The acidity content of the mixture may be reduced by treating it with Fuller's earth at 100‹ C. and then filtering it.
GB28235/47A 1941-12-04 1947-10-22 Improvements in or relating to dielectric materials Expired GB629053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US629053XA 1941-12-04 1941-12-04

Publications (1)

Publication Number Publication Date
GB629053A true GB629053A (en) 1949-09-09

Family

ID=22045603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28235/47A Expired GB629053A (en) 1941-12-04 1947-10-22 Improvements in or relating to dielectric materials

Country Status (1)

Country Link
GB (1) GB629053A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345800A1 (en) * 1976-03-24 1977-10-21 Gen Electric ELECTRIC CAPACITOR WITH PERFECTED IMPREGNANT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345800A1 (en) * 1976-03-24 1977-10-21 Gen Electric ELECTRIC CAPACITOR WITH PERFECTED IMPREGNANT

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