Patent ID: 11939223
Assignee: AEROGEL-IT GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A process for the hydrophobization of a porous silica-based compound, the process comprising:
(i) providing a composition (I) comprising a porous silica-based compound,
(ii) treating the composition (I) in a treatment vessel with a composition (II) comprising hexamethyldisiloxane or its hydrolyzed form, to obtain a treated porous silica-based compound, and
(iii) removing the treated porous silica-based compound from the treatment vessel,
wherein the treatment according to (ii) is carried out at a temperature in the range of from 60 to 90° C. and at a pH value in the range of from 0.5 to 3,
and wherein the porous silica-based compound is a silica-based aerogel.