SiO2-layered double hydroxide microspheres and methods of making them
US11643331B2 · kind B2 · utility
0Cited by
22References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 10, 2020 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Apr 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Porous particles comprising an active ingredient and a coating exhibiting greater dissolution rate in aqueous media than in alcoholic media are disclosed. A process for the manufacture of the particles is also disclosed, as well as tamper-proof particles and solid dosage forms comprising the coated particles. The differential solubility characteristics of the particle coating allow the particles to be incorporated into abuse-deterrent medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.