Pyrethroid microemulsion compositions and method for controlling insects therewith
US5334585A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Feb 21, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N53/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Stable pyrethroid microemulsion compositions having from 0.1% to 95% by weight/weight of at least one pyrethroid in liquid form; from 2% to 90% by weight/weight of a three-component surfactant system having at least one anionic surfactant, at least one nonionic surfactant and at least one co-surfactant chosen from aliphatic alcohols, cycloaliphatic alcohols, arylaliphatic alcohols, ether-alcohols and aliphatic carboxylic acids; and water. The ratio by weight of anionic surfactant/nonionic surfactant is from 10/90 to 90/10, and the ratio by weight of co-surfactant/anionic and nonionic surfactants is from 0.1 to 1.5. The microemulsion compositions are applied directly or after dilution with water to plants (crops) or wood for controlling insects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.