PESTICIDES FORMULATIONS

摘要

Concentrated microemulsions comprising: 1) 10-25 parts by weight of a pesticide with a solubility in water at 20°C lower than 1%|| by weight and having a melting point from 10°C to 60°C; 2) 8-25 parts by weight of one or more solvents containing oxygen atoms, having a solubility in water at 20°C lower than 5% by weight and the Hildebrand solubility parameter in the range 16 - 21 MPal/2 ; 3) 10-20 parts by weight of a polyol; 4) 10-25 parts by weight of one or more non ionic surfactants having a HLB value from 9 to 15; 5) 2-10 parts by weight of one or more anionic surfactants; 6) water up to 100 parts by weight; wherein - the ratio by weight between 2) and 1) ranges from 0.8:1 to 1.5:1; - the ratio by weight between 4)+5) and 1) is in the range 0.5:1-3:1; - the ratio by weight between 4) and 5) ranges from 1:1 to 4.1.