Insulated electrical conductors

Details Insulated electrical conductors Insulated electrical conductors

1996-07-31

2000-07-11

Kincaid, Kristine

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

174120R, 174120SR, 174110SR, H01B 700

Patent

active

060875917

ABSTRACT:
Polymeric compositions which contain a thermoplastic aromatic polyester, preferably polybutylene terephthalate, and a polyester block copolymer having a recrystallization temperature greater than 150.degree. C., preferably a thermoplastic elastomer containing aromatic polyester blocks and aliphatic polyester blocks. The ratio of the block copolymer to the aromatic polyester is 0.05:1 to 0.35:1, preferably 0.15:1 to 0.30:1. These compositions are particularly useful as the insulation on hermetic lead wires for use in refrigerant systems. To prevent cracking of such insulation when it is contacted by a varnish used to provide hermetic sealing, it can be covered by a thin layer of a fluoropolymer.

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