GB1101024A - Synthetic resin insulation for electric conductors - Google Patents

Synthetic resin insulation for electric conductors

Info

Publication number
GB1101024A
GB1101024A GB3090065A GB3090065A GB1101024A GB 1101024 A GB1101024 A GB 1101024A GB 3090065 A GB3090065 A GB 3090065A GB 3090065 A GB3090065 A GB 3090065A GB 1101024 A GB1101024 A GB 1101024A
Authority
GB
United Kingdom
Prior art keywords
tris
ethylene glycol
isocyanurate
polyester
condensate
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
GB3090065A
Inventor
Heinz Boettger
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.)
Cella-Lackfabrik Dr C Schleussner GmbH
Original Assignee
Cella-Lackfabrik Dr C Schleussner GmbH
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 Cella-Lackfabrik Dr C Schleussner GmbH filed Critical Cella-Lackfabrik Dr C Schleussner GmbH
Priority to GB3090065A priority Critical patent/GB1101024A/en
Priority to US482608A priority patent/US3415903A/en
Publication of GB1101024A publication Critical patent/GB1101024A/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
    • H01B3/18—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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • 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
    • 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
    • H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
    • H01B3/306—Polyimides or polyesterimides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Organic Insulating Materials (AREA)

Abstract

An insulating varnish is made from the reaction product of (a) of a polyester containing free carboxyl groups and derived from terephthalic acid, at least one polyhydric alcohol, and tris(2 - hydroxyethyl)isocyanurate and/or tris(2-carboxyethyl)isocyanurate with (b) a condensate containing free hydroxyl and amino groups of trimellitic acid tris (ethylene glycol) ester and an aromatic diamine. The preferred polyol in (a) is ethylene glycol. Suitable diamines in (b) are those of formula p,p1-H2N.C6H4.X.C6H4.NH2 wherein X is -(-CH2-)-n, -O-, -S-, or -SO2-, n being 1-4. It is preferred that the molar ratio of terephthalate to isocyanurate residues be about 2:1 and that the weight ratio of (a) : (b) be about 1:1. In examples polyesters are obtained by condensing, i.p.o. Li naphthenate, dimethyl terephthalate, ethylene glycol and tris(2-hydroxyethyl)iso-cyanurate or tris(2-carboxyethyl)isocyanurate and are then reacted with a product derived from trimellitic acid tris(ethylene glycol) ester and methylene dianiline. The products are dissolved in a cresol/solvent naphtha mixture with a polybutyltitanate catalyst, and used to coat wires. A comparative example uses a terephthalate/ethylene glycol/glycerol polyester reacted with a trimellitic anhydride/methylene dianiline condensate.ALSO:An insulating varnish for metal wires comprises the reaction product of (a) a free carboxyl-containing polyester from terephthalic acid, a polyhydric alcohol and tris (2-hydroxy-ethyl) isocyanurate or tris (2-carboxyethyl) isocyanurate and (b) a condensate of trimellitic acid tris (ethylene glycol) ester and an aromatic diamine, containing free hydroxyl and amino groups. In Examples the polyester is derived from dimethyl terephthalate, ethylene glycol and tris (2-carboxy- or 2-hydroxy-ethyl) isocyanurate, reacted with a trimellitic acid tris (ethylene glycol) ester/methylene dianiline condensate, and dissolved in cresol/solvent naphtha with a titanium catalyst. Copper wires are dip-coated with 5 layers of this varnish, then optionally with two layers of a cresol solution of a terephthalate/p-hydroxybenzoic acid/ethylene glycol polyester, then stoved at 420 DEG C.
GB3090065A 1965-07-20 1965-07-20 Synthetic resin insulation for electric conductors Expired GB1101024A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3090065A GB1101024A (en) 1965-07-20 1965-07-20 Synthetic resin insulation for electric conductors
US482608A US3415903A (en) 1965-07-20 1965-08-25 Electrical conductors prepared from polyesters containing tris-(2-hydroxyethyl)-isocyanurate or tris-(2-carboxyethyl)-isocyanurate reacted with polyesteramides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3090065A GB1101024A (en) 1965-07-20 1965-07-20 Synthetic resin insulation for electric conductors

Publications (1)

Publication Number Publication Date
GB1101024A true GB1101024A (en) 1968-01-31

Family

ID=10314859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3090065A Expired GB1101024A (en) 1965-07-20 1965-07-20 Synthetic resin insulation for electric conductors

Country Status (1)

Country Link
GB (1) GB1101024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117032A (en) * 1976-09-23 1978-09-26 Westinghouse Electric Corp. Wire coating powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117032A (en) * 1976-09-23 1978-09-26 Westinghouse Electric Corp. Wire coating powder

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