BE751082A - Const boiling perfluorodimethylcyclobutane - and trichlorotrifluoroethane dielectric - Google Patents

Const boiling perfluorodimethylcyclobutane - and trichlorotrifluoroethane dielectric

Info

Publication number
BE751082A
BE751082A BE751082DA BE751082A BE 751082 A BE751082 A BE 751082A BE 751082D A BE751082D A BE 751082DA BE 751082 A BE751082 A BE 751082A
Authority
BE
Belgium
Prior art keywords
perfluorodimethylcyclobutane
const
dielectric
trichlorotrifluoroethane
boiling
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of BE751082A publication Critical patent/BE751082A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • 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
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H01B3/24—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils containing halogen in the molecules, e.g. halogenated oils

Abstract

Compn. consists of about 74-58 wt. % of perfluorodimethylcyclobutane (I) and about 26-42 wt. % of 1,1,2-trichloro-1,2,2-trifluoroethane (II) and has a const. b.pt. of about 40 degrees C. Specif., a compn. contng. 27 wt. % (II) and 73 wt. % (I) has a freezing pt of -75 degrees C, and (I) consists of a mixture of about 100 wt. % of cis and trans 1,2-perfluoro-isomers and traces of the cis and trans 1,3-perfluoro-isomers. Other compns. contng. different amounts of (I) and (II) are claimed. Compns. are used as dielectric cooling materials.
BE751082D 1970-05-28 1970-05-28 Const boiling perfluorodimethylcyclobutane - and trichlorotrifluoroethane dielectric BE751082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE751082 1970-05-28

Publications (1)

Publication Number Publication Date
BE751082A true BE751082A (en) 1970-11-03

Family

ID=3856550

Family Applications (1)

Application Number Title Priority Date Filing Date
BE751082D BE751082A (en) 1970-05-28 1970-05-28 Const boiling perfluorodimethylcyclobutane - and trichlorotrifluoroethane dielectric

Country Status (1)

Country Link
BE (1) BE751082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0527740A4 (en) * 1990-03-12 1992-11-24 Du Pont Azeotropic composition of perfluoro-1,2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0527740A4 (en) * 1990-03-12 1992-11-24 Du Pont Azeotropic composition of perfluoro-1,2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane.
EP0619357A1 (en) * 1990-03-12 1994-10-12 E.I. Du Pont De Nemours And Company Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with dichlorotrifluoroethane

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