Polyvinyl alcohol compositions
US7045184B2 · kind B2 · utility
4Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1379
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns polyvinyl alcohol (PVA) compositions for the use in pharmaceutical, veterinary, food, cosmetic or other products like films for wrapping food, aspics or jellies, preferably for predosed formulations like soft or hard capsules. Compared with hard gelatine capsules (HGC) capsule films consisting of PVA have extremely low water vapour permeability and much lower water content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.