Аннотация:The water-repellent properties of newly synthesized hydrophobizing agents of a three-module molecular type structure 4a; b, deposited on polyester and polycotton fabric using SC-CO2 technology were studied. It is shown that in most cases the contact angle (θ) of hydrophobized surfaces exceeds 140°. An additional temperature treatment of investigated samples was applied at 120°C which made it possible, in the case of activated cotton-polyester fabric, to increase θ to 148°.