Soluble tablet, containing abrasive media
US9493731B2 · kind B2 · utility
7Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0073
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In order to obtain steady erosion from soluble tablets and particularly constant dispersion of contained abrasive media, the employment of magnesium oxide and transverse interlaced polyvinylpyrrolidone (PVP) in defined layers and the admixing of randomly scattered silicic acids is suggested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.