Slow release insect repellents
US6180127A · kind A · utility
11Cited by
21References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1993 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Oct 6, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N25/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention discloses slow release formulations for use in application of volatile insect repellents. A copolymer of polyvinyl pyrrolidone and an alkyl group of 4-30 carbons provides the slow release properties. The formulations are characterized by high residual action, low skin penetration, and high resistance to removal by water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.