Stable glycerin iodine concentrate compositions
US5885620A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Stable aqueous glycerin iodine concentrates are provided which are adapted for dilution in water to yield germicidal iodine use solutions. The concentrates include from about 30-87% by weight glycerin, from about 0.15-15% by weight iodine, from about 0.15-15% by weight iodide ion, and one or more additives such as compatible wetting agents, hydrotropes, thickening agents, additional emollients and buffering systems. The concentrates are stable for a period of at least about 3 months at room temperature and are dilutable at a ratio of 1 part concentrate with from about 2-80 parts water. The concentrates can be formulated to give very low free iodine values as concentrates, but provide dramatically increased free iodine values as diluted use solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.