GB1009211A - Insulating lacquers for electrical leads - Google Patents

Insulating lacquers for electrical leads

Info

Publication number
GB1009211A
GB1009211A GB262364A GB262364A GB1009211A GB 1009211 A GB1009211 A GB 1009211A GB 262364 A GB262364 A GB 262364A GB 262364 A GB262364 A GB 262364A GB 1009211 A GB1009211 A GB 1009211A
Authority
GB
United Kingdom
Prior art keywords
trimellitic acid
ester
containing free
electrical leads
carboxyl groups
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
GB262364A
Inventor
Heinz Bottger
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
Original Assignee
CELLA LACKFABRIK
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 filed Critical CELLA LACKFABRIK
Priority to GB262364A priority Critical patent/GB1009211A/en
Publication of GB1009211A publication Critical patent/GB1009211A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—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 C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/16—Polyester-imides
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Organic Insulating Materials (AREA)

Abstract

A method of making lacquers for the insulation of electrical leads comprises reacting in an organic solvent and at an elevated temperature (I) an ester of trimellitic acid with ethylene glycol, said ester containing free hydroxyl groups, and (II) a condensate containing free carboxyl groups and being a condensation product of trimellitic acid or anhydride with a diamine of the formula <FORM:1009211/C3/1> where Y is a C1 to C3 alkylene group, and removing the water produced from the resulting product. Specified solvents are cresol, N-methylpyrrolidone, dimethylformamide and diacetamide. Examples are given.ALSO:A method of insulating electrical leads e.g. copper wires comprises applying thereto a lacquer composition comprising an organic solvent containing, as the coating agent, a reaction product of (I) an ester of trimellitic acid with ethylene glycol, said ester containing free carboxyl groups, and (II) a condensate containing free carboxyl groups derived from trimellitic acid or anhydride and a diamine of the formula <FORM:1009211/B1-B2/1> where Y is a C1-C3 alkylene group or oxygen, and baking the applied composition to deposit the coating agent.
GB262364A 1964-01-21 1964-01-21 Insulating lacquers for electrical leads Expired GB1009211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB262364A GB1009211A (en) 1964-01-21 1964-01-21 Insulating lacquers for electrical leads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB262364A GB1009211A (en) 1964-01-21 1964-01-21 Insulating lacquers for electrical leads

Publications (1)

Publication Number Publication Date
GB1009211A true GB1009211A (en) 1965-11-10

Family

ID=9742817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB262364A Expired GB1009211A (en) 1964-01-21 1964-01-21 Insulating lacquers for electrical leads

Country Status (1)

Country Link
GB (1) GB1009211A (en)

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