Method for preparing a hydrogel comprising silico-metallic mineral particles and hydrogel
US9968924B2 · kind B2 · utility
0Cited by
2References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | May 17, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for preparing a novel hydrogel including silico-metallic mineral particles of the formula (Six(Si-A)1−x)4M3O11.n′H2O, in which: x is a real number in the range [0.75; 1], A denotes a group selected from methyl and hydrocarbon groups including at least one heteroatom, and M is a metal selected from the group consisting of magnesium, cobalt, zinc, copper, manganese, iron, nickel and chromium, wherein a coprecipitation reaction is carried out in an aqueous medium between: at least one metal salt of the metal M, sodium metasilicate, Na2OSiO2, and at least one water-soluble oxysilane of formula (I):
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.