GB635445A - Improvements in or relating to insulated electrical conductors - Google Patents

Improvements in or relating to insulated electrical conductors

Info

Publication number
GB635445A
GB635445A GB10359/48A GB1035948A GB635445A GB 635445 A GB635445 A GB 635445A GB 10359/48 A GB10359/48 A GB 10359/48A GB 1035948 A GB1035948 A GB 1035948A GB 635445 A GB635445 A GB 635445A
Authority
GB
United Kingdom
Prior art keywords
mixture
polysiloxanes
conductor
polysiloxane
total number
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
GB10359/48A
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 GB635445A publication Critical patent/GB635445A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/308Wires with resins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/46Insulators 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Polyamides (AREA)

Abstract

A conductor is insulated with a coating of a cured cross-linked polyester amide resin applied directly thereon and an outer coating of an organo polysiloxane resin. The polyester amide resin may be produced by reacting (a) a mixture of organic di-carboxylic acids or anhydrides thereof having an average of from 2 to 3 1/2 non-carboxyl carbon atoms per molecule, the mixture composed of from 48 to 92 mole per cent of an acid having the group <FORM:0635445/IV (a)/1> where R and R1 each represent OH or R and R1 together represent O and the remainder is saturated aliphatic dicarboxylic acids having from 4 to 12 carbon atoms, and (b) a mixture of primary aliphatic amines and alkyl polyhydric alcohols, the total number of amino and hydroxyl groups in (b) being substantially equal to or more than the total number of carboxyl groups in (a). Examples of suitable resins of this type are given in Specification 626,145. Organo-polysiloxane resins suitable for the outer coating comprise the following typical structures <FORM:0635445/IV (a)/2> where R and R1 may be the same or different organic radicals attached through carbon silicon linkages to at least some of the silicone atoms. The ratio of R+R1 to Si may vary from 2 to 1, and X may have a value of 4 or more. Numerous suitable organic radicals are given. The polysiloxanes may form linear, branched, cross-linked and cyclic structures. After application to the conductor the polysiloxane resin is cured by heating to a temperature between 150 DEG and 250 DEG C. for a few minutes. A catalyst may be employed to expedite the curing. Stabilizers such as high boiling point amines and phenols may be added to the polysiloxanes to enable them to withstand high temperatures without cracking or deteriorating.
GB10359/48A 1947-06-19 1948-04-14 Improvements in or relating to insulated electrical conductors Expired GB635445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US635445XA 1947-06-19 1947-06-19

Publications (1)

Publication Number Publication Date
GB635445A true GB635445A (en) 1950-04-12

Family

ID=22049932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10359/48A Expired GB635445A (en) 1947-06-19 1948-04-14 Improvements in or relating to insulated electrical conductors

Country Status (1)

Country Link
GB (1) GB635445A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879183A (en) * 1955-12-15 1959-03-24 Bell Telephone Labor Inc Insulating coatings and a method for their production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879183A (en) * 1955-12-15 1959-03-24 Bell Telephone Labor Inc Insulating coatings and a method for their production

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