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US 7,118,801 B2Granted
Aerogel/PTFE composite insulating material
AssigneeGore Enterprise Holdings, Inc.
InventorsCedomila Ristic-Lehmann, Brian Farnworth, Anit Dutta
Life of this patent
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Abstract
A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.
Claims13
A materiel comprising
- greater than or equal to about 40% wt aerogel particles and
- less than or equal to about 60% wt polytetrafluoroethylene (PTFE) particle having a particle size of from about 50 nm to about 600 μm as a binder,
- wherein the material is a powder or a putty, and the material has a thermal conductivity of less than or equal to 25 milliwatts per meter Kelvin (mW/m K) at atmospheric conditions (298.15 K and 101.3 kPa).
Dependencies are inferred from the claim text.