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US 4,732,629 AGranted
Method for manufacturing an insulated conductor having a high cut-through resistance
OwnerPeter B. Cooper, Sarah J. Laneinventors
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Abstract
This invention provides a method of increasing the cut-through resistance of a PTFE insulated conductor. Unsintered PTFE is expanded and compressed and then applied to a conductor. The insulated conductor is then heated to a temperature above 345.degree. C. The compressed, expanded PTFE has one crystalline melt point above 375.degree. C.
Claims6
A method for increasing the cut-through resistance of a PTFE insulated conductor comprising:
- (a) insulating a conductor with at least one layer of expanded PTFE tape that has been compressed to a density of greater than about 1.9 g/cm.sup.3 and has a crystalline melt point above 375.degree. C.;
- and
- (b) heating said insulated conductor to a temperature above 345.degree. C.
Dependencies are inferred from the claim text.