Patent · US Active

Granular mixed oxide material and thermal insulating composition on its basis

US11958981B2 · kind B2 · utility

0Cited by

45References

20Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Uwe Numrich · Weiterstadt, DE
Christian Moers · Langen, DE
Bettina GERHARZ-KALTE · Kirberg, DE
Björn LAZAR · Hasselroth, DE
Matthias Geisler · Thalwil, CH

Key dates

Filing date	Jul 9, 2019
Grant date	Apr 16, 2024
Priority date	—
Expiry date	Mar 19, 2041

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE04B2001/742
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Hydrophobized granular material comprising from 30 to 95% by weight of a pyrogenic mixed oxide based on silica and at least one oxide of metal M selected from of Al, Ti and Fe with the content of metal M oxide in the mixed oxide being from 01 to 10% by weight, and from 5 to 70% by weight of at least one IR-opacifier selected from the group consisting of silicon carbide, zirconium dioxide, ilmenites, iron titanates, zirconium silicates, manganese oxides, graphites, carbon blacks and mixtures thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.