Surface-reacted calcium carbonate with functional cations
US11718759B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Oct 1, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Oct 20, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/22
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A surface-reacted calcium carbonate is described. In embodiments, the surface-reacted calcium carbonate is obtained by a process comprising treating a calcium carbonate-comprising material with at least one H3O+ ion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.