USE OF BETAIN SURFACTANT TOGETHER WITH AN ANIONIC SURFACTANT AS AN AGENT REDUCING ENTRAINING FORCES

摘要

PCT No. PCT/EP95/00950 Sec. 371 Date Sep. 8, 1997 Sec. 102(e) Date Sep. 8, 1997 PCT Filed Mar. 5, 1996 PCT Pub. No. WO96/28527 PCT Pub. Date Sep. 19, 1996A combination of at least one betaine surfactant having an saturated or unsaturated alkyl or acyl group having 10-24 carbon atoms, preferably 14-24 carbon atoms, and an anionic surfactant having the general structureR1-Bwhere R1 is a hydrocarbon group with 10-24 carbon atoms and B is a group or a group in which M is hydrogen or a cationic, preferably monovalent group in a proportion between the betaine surfactant and the anionic surfactant of from 20:1 to 1:2, preferably from 10:1 to 1:1, reduces the flow resistance between a flowing water-based liquid system and a solid surface.