Anhydrous complexes of PVP and H.sub.2 O.sub.2
US5108742A · kind A · utility
45Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Sep 12, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q11/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
What is provided herein are substantially anhydrous complexes of PVP and H.sub.2 O.sub.2 in molar ratios of between about 2:1 and 1:1, respectively, which corresponds to between about 13% and about 23% by weight H.sub.2 O.sub.2. The complexes of the invention are prepared by an anhydrous process whereby substantially uniform, free-flowing, fine white powders are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.