PCT No. PCT/FR92/00701 Sec. 371 Date Feb. 18, 1993 Sec. 102(e) Date Feb. 18, 1993 PCT Filed Jul. 17, 1992 PCT Pub. No. WO93/02092 PCT Pub. Date Feb. 4, 1993The galacturonic acid derivatives of formula: <IMAGE> (I) R1 being a linear or branched alkyl having 2 to 22 carbon atoms, R being: <IMAGE> or <IMAGE> for which the carbon carrying the hydroxyl group is attached to the endocyclic oxygen atom. R2 being hydrogen, R1, an alkali metal atom, an alkaline-earth metal atom or a quaternary ammonium group of formula: <IMAGE> in which R3 to R6 is each independently of the other hydrogen, an alkyl having 1 to 6 carbon atoms or a hydroxyalkyl having 1 to 6 carbon atoms, are surface-active agents.
Surface active galacturonic acid derivatives