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US 5,393,929 AGranted
Electrical insulation and articles thereof
AssigneeJunkosha Inc.
InventorHideo Yagihashi
Life of this patent
Estimating the term…
Abstract
A light-weight, but strong and cut-through resistant electrical insulation tape, which is a laminate of porous polytetrafluoroethylene and polyetheretherketone. Also described are insulated wires and coaxial cables using the electrical insulation tape.
Claims10
An electrical insulation laminate comprising a layer of porous polytetrafluoroethylene and at least one layer of polyetheretherketone, the latter being melt-bonded to one or both surfaces of the former.
An insulated electrical wire comprising, from inside to outside:
- (a) at least one metal inner conductor,
- (b) at least one layer of porous expanded polytetrafluoroethylene, and
- (c) at least one layer of polyetheretherketone;
- said layers being in film form wrapped on said conductor, and
- said layer of polyetheretherketone melt-bonded to said layer of porous expanded polytetrafluoroethylene.
2 more elements
An insulated electrical wire comprising, from inside to outside:
- (a) at least one metal inner conductor, and
- (b) at least one layer of a composite article comprising a layer of polyetheretherketone melt-bonded to a layer of porous expanded polytetrafluoroethylene;
- said composite article being in film form wrapped on the conductor.
A coaxial cable comprising, from inside to outside:
- (a) at least one metal inner conductor,
- (b) at least one layer of porous expanded polytetrafluoroethylene,
- (c) at least one layer of polyetheretherketone;
- and
- (d) at least one outer electrically-conductive layer;
- said layers of porous expanded polytetrafluoroethylene and polyetheretherketone being in film form wrapped on said inner conductor, and
- said layer of polyetheretherketone melt-bonded to said layer of porous expanded polytetrafluoroethylene.
4 more elements
Dependencies are inferred from the claim text.