Low density closed cell composite aerogel foam and articles including same
AssigneeLukla Inc.
InventorsJeffrey Nash, Michael Glenn Markesbery, Rithvik Venna
Life of this patent
Estimating the term…
Abstract
A composite foam is provided having silica aerogel particles dispersed in a closed cell polymeric foam. The silica aerogel particles are included in a volume fraction between 2 and 60%, and the composite foam has a thermal conductivity of 40 mW/m⋅K or less and a density of 60 kg/m3 or less. In another embodiment, a composite foam is provided having a perforated closed cell polymeric foam and 2-60% hydrophobic silica aerogel particles by volume with a particle size distribution of 1 to 50 μm, where the composite foam has a thermal conductivity of 30 mW/m⋅K or less, a density of 20-45 kg/m3, and an air permeability of 20-40 cubic feet per minute.
Claims22
A soft good comprising a flexible substrate with a flexible composite foam laminated thereto, the composite foam comprising:
- silica aerogel particles dispersed in a closed cell polymeric foam,
- wherein the composite foam includes the silica aerogel particles in a volume fraction 60% or less, and has a thermal conductivity of 40 mW/m⋅K or less and a density of 60 kg/m3 or less.
A soft good comprising a flexible textile with a flexible composite foam laminated thereto, the composite foam comprising:
- a perforated closed cell polymeric foam;
- and
- 2-60% hydrophobic silica aerogel particles by volume having a particle size distribution of 1 to 50 μm,
- wherein the composite foam has a thermal conductivity of 30 mW/m⋅K or less, a density of 20-45 kg/m3, and an air permeability of 20-40 cubic feet per minute.
Dependencies are inferred from the claim text.