| 摘要 |
Poly(oxyalkylene)urethane surfactants of the formula (I) R2-X-OCHN-[R1-NHCO-O-[(CH2)q-O]x-CONH-]nR1-NHCO-X-R2 (I) in which R1: an alkylene radical, a cycloalkylene radical or an arylene radical; X: -O- or -NH-; R2: a linear or branched (C1-C4)-alkyl radical, monosubstituted by a group selected from: sulfo, carboxyl and [N,N-di-(C1-C4)-alkyl]amino, or disubstituted by: carboxyl; carboxyl and hydroxyl; carboxyl and mercapto; or, if X = -O-, R2 may also be defined as [R3-O-CONH-R1-NHCO-O-]mR4 in which R3: a linear or branched (C1-C4)-alkylene radical, monosubstituted by COOH, especially a -CH2-[C(COOH)(CH3)]-CH2- radical, R1 is as defined above, and R4 : C2-C22-alkyl or a -CH2-[C(COOH)(CH3)]-CH2-OH radical, and m = an integer from 1 to 10; n = an integer from 1 to 7; q = an integer from 3 to 5; and x = an integer from 10 to 70; and the water-soluble or water-dispersible salts thereof are described as a solubilizer and stabilizer in active ingredient formulations. |
