GB735532A - Improvements in and relating to electrical insulation - Google Patents

Improvements in and relating to electrical insulation

Info

Publication number
GB735532A
GB735532A GB26620/52A GB2662052A GB735532A GB 735532 A GB735532 A GB 735532A GB 26620/52 A GB26620/52 A GB 26620/52A GB 2662052 A GB2662052 A GB 2662052A GB 735532 A GB735532 A GB 735532A
Authority
GB
United Kingdom
Prior art keywords
coated
conductor
epoxide resin
tape
impregnated
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
GB26620/52A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB735532A publication Critical patent/GB735532A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/06—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances asbestos
    • 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
    • H01B3/42—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 polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • H01B3/425—Non-saturated polyesters derived from polycarboxylic acids and polyhydroxy compounds, in which at least one of the two components contains aliphatic unsaturation
    • 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
    • H01B3/44—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 vinyl resins; acrylic resins
    • H01B3/447—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 vinyl resins; acrylic resins from acrylic compounds
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Organic Insulating Materials (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

735,532. Conductors. GENERAL ELECTRIC CO. Oct. 23, 1952 [Oct. 31, 1951], No. 26620/52. Drawings to Specification. Class 36. [Also in Group VIII] A conductor is insulated with an adhesive fibrous tape of inorganic material, such as asbestos, spun glass or spun quartz, which is impregnated with a copolymer of acrylic acid esters and is first coated with a pre-condensed resinous product obtained by reacting an acidic unsaturated polyester and an epoxide resin and then coated with a reaction product of an acidic polyester of a non-polymerizable dicarboxylic acid with an epoxide resin. After application to the conductor, which may itself first be made adhesive, the coated tape is heated under pressure to convert the resinous products to a solid, infusible state. The tape may first be impregnated with starch solution and dried, after which it is impregnated with, for example, a solution in toluene of a copolymer of methyl acrylate and ethyl acrylate and the solvent evaporated. The first coating material may comprise the resinous reaction product of ethylene glycol maleate and an epoxide resin, as described in Specification 735,531, [Group IV (a)]. In order to prevent the coated tape sticking to itself before application to the conductor, it is further coated with a powder consisting of the reaction product of an acidic polyester of a non-polymerizable dicarboxylic acid with an epoxide resin, as described in Specification 732,253, [Group VIII]. The application of heat and pressure to the wrapped conductor consolidates the coatings and converts them to the solid infusible state.
GB26620/52A 1951-10-31 1952-10-23 Improvements in and relating to electrical insulation Expired GB735532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US735532XA 1951-10-31 1951-10-31

Publications (1)

Publication Number Publication Date
GB735532A true GB735532A (en) 1955-08-24

Family

ID=22114384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26620/52A Expired GB735532A (en) 1951-10-31 1952-10-23 Improvements in and relating to electrical insulation

Country Status (1)

Country Link
GB (1) GB735532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033727A (en) * 1956-11-09 1962-05-08 Gen Electric Process for making void-free insulated conductors
WO2013139834A1 (en) * 2012-03-21 2013-09-26 Institut Für Verbundwerkstoffe Gmbh Method for thermoplastic tape laying, use of a tape and a tape

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033727A (en) * 1956-11-09 1962-05-08 Gen Electric Process for making void-free insulated conductors
WO2013139834A1 (en) * 2012-03-21 2013-09-26 Institut Für Verbundwerkstoffe Gmbh Method for thermoplastic tape laying, use of a tape and a tape

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