EP 3762137 A1 20210113 - METHOD FOR PRODUCING AN AEROGEL MATERIAL
Title (en)
METHOD FOR PRODUCING AN AEROGEL MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES AEROGELMATERIALS
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN MATÉRIAU AÉROGEL
Publication
Application
Priority
- EP 18159929 A 20180305
- EP 2018075446 W 20180920
Abstract (en)
[origin: WO2019170264A1] The present invention relates to a method for producing an aerogel material based on amorphous silicon dioxide, comprising the following steps: a) preparing a mixture containing silicon dioxide sol, alcohol and an acid-catalytically activatable hydrophobicization agent; b1) adding a base to the mixture formed in step a) and mixing the resulting mixture; b2) gelating the mixture obtained in step b2) containing silicon dioxide sol, wherein a silicon dioxide gel is created, and optional ageing of the gel; c) adding a hydrophobicization catalyst to the optionally aged silicon dioxide gel formed in step b2), in situ formation or controlled release of a hydrophobicization catalyst and initiating catalysed hydrophobicization of the silicon dioxide; d) removing the volatile components from the mixture formed in step c) by subcritical drying, wherein the aerogel material is formed, wherein at least steps b2) to d) are carried out in one and the same reactor.
IPC 8 full level
B01J 13/00 (2006.01); C01B 33/158 (2006.01); C01B 33/16 (2006.01); E04B 1/78 (2006.01)
CPC (source: EP KR US)
B01J 13/0091 (2013.01 - EP KR); C01B 33/1585 (2013.01 - EP KR US); C01B 33/16 (2013.01 - EP KR); C01B 33/166 (2013.01 - US); E04B 1/78 (2013.01 - KR US); C01P 2006/10 (2013.01 - EP KR US); C01P 2006/32 (2013.01 - EP KR US); E04B 1/78 (2013.01 - EP); E04B 2001/742 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2019170264A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019170264 A1 20190912; CN 111818994 A 20201023; EP 3762137 A1 20210113; JP 2021517103 A 20210715; JP 7184916 B2 20221206; KR 102489744 B1 20230119; KR 20200127014 A 20201109; US 2021039954 A1 20210211
DOCDB simple family (application)
EP 2018075446 W 20180920; CN 201880090769 A 20180920; EP 18773176 A 20180920; JP 2020546413 A 20180920; KR 20207027954 A 20180920; US 201816978164 A 20180920