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US 9,728,299 B2Granted
PTFE material having an anti-corona effect
AssigneeProduits Plastiques Performants Holding - 3P Holding
InventorsDavid Cade, Emmanuel Garraud
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Abstract
The present invention provides a material based on high density polytetrafluoroethylene (PTFE) and its applications, such as in the production of electric cable. The PTFE material of the invention includes PTFE, a metal oxide, a lubricant and a wetting agent.
Claims12
A material based on polytetrafluoroethylene (PTFE), the material having a density of more than 1.45 and being prepared from a mixture comprising:
- PTFE;
- 5% to 15% by weight of metal oxide particles;
- 15% to 30% by weight of a lubricant;
- and
- 0.1% to 1% by weight of a wetting agent;
- the percentages by weight being based on the weight of PTFE, wherein the wetting agent is a fatty alcohol and
- the metal oxide particles have a grain size in the range of 10 nm to 1 μm.
4 more elements
Dependencies are inferred from the claim text.