US 12,344,531 B2
Silica with ultra-fast dissolution properties
Nicolas Mannu, Waterloo (BE); Quentin Chevrot, La Fare les Oliviers (FR); Karine Croizet-Berger, Court St Etienne (BE); Nicolas Rabasso, Antony (FR); Ivan Coste-Maniere, Grasse (FR); Jullen Estager, Kontich (BE); and Benoit Kartheuser, Ciney (BE)
Assigned to Sil'Innov Srcl, Courcelles (BE)
Appl. No. 17/754,536
Filed by Sil'Innov Srcl, Courcelles (BE)
PCT Filed May 29, 2020, PCT No. PCT/EP2020/065084
§ 371(c)(1), (2) Date Apr. 5, 2022,
PCT Pub. No. WO2021/069108, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. PCT/EP2019/077458 (WO), filed on Oct. 10, 2019.
Prior Publication US 2024/0059571 A1, Feb. 22, 2024
Int. Cl. A61K 33/00 (2006.01); A61K 9/00 (2006.01); A61K 9/16 (2006.01); C01B 33/18 (2006.01)
CPC C01B 33/18 (2013.01) [A61K 9/0053 (2013.01); A61K 9/1623 (2013.01); A61K 33/00 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01); C01P 2006/90 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A mesoporous silica prepared by:
(i) forming a clogged mesoporous silica comprising an amphiphilic glycoside and a cationic load of alkali and/or earth alkaline metal ions,
wherein step (i) further comprises (i-a) mixing a silica precursor in presence of said amphiphilic glycoside at a pH between 8 and 13, and (i-b) subsequently filtrating or drying said mixture,
wherein said amphiphilic glycoside is present at 35% by weight to 80% by weight, based on the total weight of said silica precursor and said amphiphilic glycoside; and
(ii) without washing said clogged mesoporous silica prior to further processing, subsequently subjecting said clogged mesoporous silica comprising said amphiphilic glycoside to a heat-treatment above 400° C.