GB962022A - Improvements in or relating to electric insulation - Google Patents

Improvements in or relating to electric insulation

Info

Publication number
GB962022A
GB962022A GB17461/62A GB1746162A GB962022A GB 962022 A GB962022 A GB 962022A GB 17461/62 A GB17461/62 A GB 17461/62A GB 1746162 A GB1746162 A GB 1746162A GB 962022 A GB962022 A GB 962022A
Authority
GB
United Kingdom
Prior art keywords
diorganopolysiloxane
viscosity
peroxide
paste
polysiloxane
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
GB17461/62A
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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 Dow Corning Corp filed Critical Dow Corning Corp
Publication of GB962022A publication Critical patent/GB962022A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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
    • H01B3/46—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 silicones
    • 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
    • H01B7/02—Disposition of insulation
    • H01B7/0241—Disposition of insulation comprising one or more helical wrapped layers of insulation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

A paste used in conjunction with a cured tack-free silicone rubber tape for electric insulation (see Division H1) comprises (a) a mixture of a diorganopolysiloxane having a viscosity in the range 2,000cs to 500,000cs. at 25 DEG C. and a metallic oxide filler (see Specification), or (b) a diorganopolysiloxane having a viscosity in the range 5,000 cs. to 10,000,000 cs. at 25 DEG C. wherein from 0.1 to 1.0% of the silicon atoms have at least one vinyl radical attached thereto. Specifically the paste (a) may comprise a mixture of a polysiloxane having a viscosity 2,000 cs. to 500,000 cs. at 25 DEG C. and containing per silicon atom an average of from 1.98 to 2.01 silicon bonded monovalent hydrocarbon, halogeno-aromatic hydrocarbon or fluoroaliphatic hydrocarbon radicals, from about 0.1 to about 1.0% of the silicon atoms in the polysiloxane having at least one vinyl radical attached thereto, a filler (see Specification) and an organic peroxide vulcanising agent e.g. benzoyl peroxide, tertiarybutyl perbenzoate, tertiarybutyl peroxide, dichlorobenzoyl peroxide and 2,5-dimethyl-2, 5-bis (tertiarybutylperoxy) hexane. A paste containing a diorganopolysiloxane may be cured using an organic peroxide vulcanising agent or by irradiation. The Specification includes examples of the various types of pastes which have been tested.
GB17461/62A 1961-06-30 1962-05-07 Improvements in or relating to electric insulation Expired GB962022A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12122361A 1961-06-30 1961-06-30
US12122461A 1961-06-30 1961-06-30

Publications (1)

Publication Number Publication Date
GB962022A true GB962022A (en) 1964-06-24

Family

ID=26819235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17461/62A Expired GB962022A (en) 1961-06-30 1962-05-07 Improvements in or relating to electric insulation

Country Status (3)

Country Link
JP (2) JP3912386B1 (en)
CH (1) CH439435A (en)
GB (1) GB962022A (en)

Also Published As

Publication number Publication date
JPS3912385B1 (en) 1964-07-02
CH439435A (en) 1967-07-15
JP3912386B1 (en) 1964-07-02

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