have relatively low viscosities ranging from about 50 to 8000 centipoises and preferably 100 to 5000 and an equivalent weight ranging from 50 to 2500 and preferably 100 to 1800 as set forth above the polyether aminoalcohol is prepared by reacting a polyether containing a terminal leaving group with a primary aminoalcohol selected from the group consisting of aminoalkylalcohols aminoarylalcohols aminoalkylpolyols aminoarylpolyols or aminophenols at a temperature of about 50 u00b0 to 250 u00b0 c the polyether containing a terminal leaving group can be obtained by converting the hydroxyl group of a polyether polyol to a suitable leaving group non limiting examples of the leaving groups can be selected from the group consisting of halides sulfonates and nitrophenoxides and the like polyethers polyols suitable for use in accordance with the invention can be obtained by the polymerization of alkylene oxides such as ethylene oxide propylene oxide butylene oxide tetrahydrofuran styrene oxide or epichlorohydrin on their own for example in the presence boron trifluoride or by the addition of these epoxides optionally in admixture or successively onto starter components containing reactive hydrogen atoms such as water alcohols or amines for example ethylene glycol 1 3 or 1 2 propylene glycol trimethylol propane 4 4 39 dihydroxydiphenyl propane aniline ammonia ethanolamine or ethylene diamine or a mixture thereof tertiary amine catalysts suitable for use in accordance with the invention can be pyridine triethylamine tributyl amine and the like specific but non limiting example of the amides can be n n dimethylformamide and n n dibutylformamide in preparing a polyether containing a halide leaving group e g a polyether alkyl halide a halogenation agent corresponding to the halide is reacted with a polyether polyol generally such a reaction can be.