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US 11,565,974 B2Granted
Granular thermal insulation material and method for producing the same
AssigneeEvonik Operations GmbH
InventorsMatthias Geisler, Ann-Kathrin Herr, Christian Moers, Gabriele Gärtner
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Abstract
The present invention relates to a granular thermal insulation material comprising hydrophobized silicon dioxide and at least one IR opacifier, having a tamped density of up to 250 g/l and a compressive strength according to DIN EN 826:2013 at 50% compression of 150 to 300 kPa or greater than 300 kPa, to processes for production thereof and to the use thereof for thermal insulation.
Claims20
A granular material comprising hydrophobized silicon dioxide and at least one IR opacifier, wherein said granular material comprises:
- a) a tamped density of up to 250 g/l;
- and
- b) a compressive strength according to DIN EN 826:2013 at 50% compression of greater than 300 kPa, wherein the compressive strength is measured on a bed with a square face having an edge length of 200 mm and bed height 20 mm.
Dependencies are inferred from the claim text.