AMPHIPHILIC POLYMER COMPOSITIONS AND USE THEREOF Russian patent published in 2010 - IPC C08G18/62 C08G18/72 C08G18/28 C08G18/10 A01N25/04 

FIELD: chemistry.

SUBSTANCE: invention relates to an amphiphilic polymer composition used in compositions of active substances used for protecting plants from pathogens, phytopathogens or wood destroying fungi, insects etc, or in compositions of additives to food products. The given composition is obtained by reacting (i) at least one hydrophobic polymer P1, which is made from ethylene unsaturated monomers M1, and (ii) at least one hydrophilic polymer P2, which is in form of aliphatic polyethers consisting of at least 50 wt % ethylene oxide groups, with (iii) at least one compound V containing isocyanate groups, which has functionality of 1.5-4.5 relative the isocyanate groups, and is selected from aliphatic, cycloaliphatic and aromatic di- and polyisocyanates, as well as from isocyanurates, allophanates, uretdiones and biurets. Ethylene unsaturated monomers M1 contain: (a1) from 50 to 99 wt % in terms of total amount of monomers M1, monomers M1a of general formula I and a2) from 1 to 50 wt % in terms of total amount of monomers M1, neutral monoethylene unsaturated monomers M1b, which differ from monomers M1a, and are selected from vinylaromatic monomers, C₁₁-C₂₀alkylacrylates and C₁₁-C₂₀alkylmethacrylates.

EFFECT: amphiphilic polymer composition promotes efficient solubilisation and stabilisation of water-insoluble active substances, which leads to increase in stability of such compositions of active substances with respect to demulsification processes during prolonged storage, during addition of an electrolyte and during dilution with water.

25 cl, 9 ex, 2 tbl