| abstract |
A stable, aqueous pesticide dispersion composition comprising a water insoluble pesticide dispersed by a liquid polyoxyalkylene-polyoxypropylene copolymer having the formula n n n n [(EO,PO) m (PO) n [EO,PO) m 'H] x n n n nwherein Y is the nucleus of an organic reactive hydrogen compound containing x reactive hydrogen atoms and up to 6, inclusive, carbon atoms, x is an integer, m and n are numbers such that the total molecular weight of the copolymer is from about 3000 to 8000, EO is polyoxyethylene, PO is polyoxypropylene, the copolymer is from 30 to 55 weight percent hydrophile, and from 5 to 25 percent of the ethylene oxide present in the hydrophile is substituted by propylene oxide, such that the hydrophilic portion is heteric and the hydrophobic portion is block; and the balance water. |