| abstract |
PCT No. PCT/EP96/01216 Sec. 371 Date Oct. 24, 1997 Sec. 102(e) Date Oct. 24, 1997 PCT Filed Mar. 21, 1996 PCT Pub. No. WO96/30477 PCT Pub. Date Oct. 3, 1996The invention concerns aqueous surfactant concentrates having a solids content of between 35 and 65 wt % and containing (a1) alkyl oligoglycosides and/or alkenyl oligoglycosides; and/or (a2) fatty acid N-alkylpolyhydroxy alkylamides; and (b) betaine, in weight ratios of (a):(b) of between 10:90 and 90:10; wherein the pH of these concentrates is between 3.5 and 6.5. |