Composition containing synthetic mineral particles and a process for preparing the composition
US10577251B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/82
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composition comprising synthetic mineral particles, such as silicate or phyllosilicate mineral particles, is presented. The composition can be prepared by a process in which a hydrogel precursor of the synthetic mineral particles is produced by a coprecipitation reaction between at least one compound comprising silicon, such as sodium metasilicate, and at least one compound comprising at least one metal element, such as a dicarboxylate salt of the formula M(R1—COO)2, wherein R1 is H or an alkyl group having 1 to 4 carbon atoms. The coprecipitation reaction also takes place in the presence of at least one carboxylate salt of formula R2—COOM′ wherein M′ is Na or K, and R2 is H or an alkyl group having 1 to 4 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.