EP0056510A1
Expired / Lapsed
EP
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Insulation system for wire and cable
Assignee: Champlain Cable Corp
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Filing: 1981-01-21
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Granted: —
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Expires: 2001-01-21
Abstract
Abstract An insulated electrical conductor is provided that exhibits excellent physical, electrical and chemical protection for wire and cable and is particularly suitable for use in aircraft applications. The electrical conductor is insulated with (A) a film selected from ethylene tetrafluoroethylene copolymer film and tetrafluoroethylene coated polyimide film and (B) a topcoat insulation system comprising (a) a first layer of modified polyimide, (b) a second layer of polyvinylidene fluoride. and (c) a third layer of cross-linked acrylic polymer.
Inventors
- 👤 Aime Joseph Perreault
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 10:10
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/2806; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/306; H01B3/44; H01B3/443; H01B3/447; H01B7/02; H01B7/0208; H01B7/29; H01B7/292
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
An insulated electrical conductor comprising a metallic conductor insulated with (A) a film selected from. ethylene tetrafluoroethylene copolymer and tetrafluoroethylene coated polyimide, and (B) a topcoat insulation system comprising a first layer of insulation consisting essentially of a modified polyimide coating adhering to said film, a second layer of insulation consisting essentially of polyvinylidene fluoride coating adhering to the surface of the polyimide coating and a third layer of insulation consisting essentially of a crosslinked acrylic polymer coating adhering to the surface of the polyvinylidene fluoride.
Claim 2
Dependent Claim
86 words
An insulated electrical conductor comprising a metallic conductor insulated with (A) a film selected from. ethylene tetrafluoroethylene copolymer and tetrafluoroethylene coated polyimide, and (B) a topcoat insulation system comprising a first layer of insulation consisting essentially of a modified polyimide coating adhering to said film, a second layer of insulation consisting essentially of polyvinylidene fluoride coating adhering to the surface of the polyimide coating and a third layer of insulation consisting essentially of a crosslinked acrylic polymer coating adhering to the surface of the polyvinylidene fluoride.
Claim 3
Dependent Claim
20 words
The insulated electrical conductor of claim 1 in which the film insulating the metallic conductor .is ethylene tetrafluoroethylene copolymer film.
Claim 4
Dependent Claim
20 words
The insulated electrical conductor of claim 1 in which the film insulating the metallic conductor is tetrafluoroethylene coated polyimide film.
Claim 5
Dependent Claim
34 words
The insulated electrical conductor of claims 1, 2 or 3 in which the polyimide coating is prepared from a polybenzimide made by condensing equal molar amounts of an aromatic hydrocarbon diamine with pyromellitic dianhydride.
Claim 6
Dependent Claim
17 words
The insulated electrical conductor of claims 1, 2 or 3 in which the polyimide is polybenzimidazole. '
References Cited (Backward Citations)
GB1039967A
Cited
FR2112413A1
Cited
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