Povidone irradiation
US4427631A · kind A · utility
9Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | May 27, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Sterilized povidone-iodine (polyvinylpyrrolidone-iodine) is obtained by irradiating povidone-iodine in the presence of iodide ions. Preferably the irradiation is effected in the presence of iodine and both iodide and iodate ions. The iodide ions, with or without iodate ions, have the effect of preventing the degradation of povidone-iodine and the gelation of iodine and povidone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.