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US 11,535,727 B2Granted
Method for producing hydrophobic silica mouldings
AssigneeWacker Chemie AG
InventorsKonrad Hindelang, Dominik Jantke, Richard Weidner
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Abstract
The invention relates to a method for producing hydrophilic silicia moulded bodies, in which i) a mixture containing hydrophilic silicic acid is added at a maximum temperature of 55° C. to hydrophobic means and ii) the mixture obtained in step i) is compacted after a maximum storage time of 30 days to form moulded bodies, iii) during steps ii and iii and until the moulded bodies are used, the temperature is at a maximum of 55° C.
Claims19
A method for producing mechanically stable hydrophobic silica moldings, comprising:
- i) coating a mixture containing hydrophilic silica with at least one hydrophobicizing agent at a temperature of not more than 55° C.;
- and
- ii) compacting the mixture from step i) after a storage time of not more than 30 days, to create moldings,
- iii) wherein the temperature is not more than 55° C. during steps i) and ii) and up to use of the moldings, and wherein the moldings produced in step ii) are mechanically stable moldings having a density of from 100 to 400 g/L.
1 more element
A method for producing hydrophobic silica moldings, comprising:
- iv) coating a mixture containing hydrophilic silica with at least one hydrophobicizing agent at a temperature of not more than 55° C.;
- and
- v) compacting the mixture from step i) after a storage time of not more than 30 days, to create moldings,
- vi) wherein the temperature is not more than 55° C. during steps i) and ii) and up to use of the moldings,
- further comprising adding fibers to the mixture before step ii).
2 more elements
Dependencies are inferred from the claim text.