| 摘要 |
Capillary-active products comprising one or more polyethers (I) R.O-(CmH2mO)nH and (II R1.CO.O-(CmH2mO)nH are treated with one o more acids R-O-(CmH2mO)xR11-COOH to reduce the adverse effects of residual alkaline catalysts used in the preparation thereof. R represents a C8-C20 hydrocarbon group, R1 a C7-C19 hydrocarbon group, R11 a C1-C3 alkylene group, m is an integer of 2-4 and n and x each represent an average number of alkylene oxide groups in the range 1-50. The product contains a minor amount of one or more alkali metal salts resulting from the reaction, and the acid used preferably has oxyethylene units equal to the main product. Examples describe the treatment of adducts of oleyl alcohol and epoxyethane with laurylpolyoxyethylene acetic acids; nonyl phenol and epoxyethane with p-octylphenoxy polyethoxyacetic acid; lauryl alcohol with epoxyethane, and stearic acid with p-octylphenoxypolyethoxy acetic acid and C18H37O-(C2H4O)2CH2COOH respectively.ALSO:Capillary-active products comprising one or more polyethers (1) R.O-(CmH2mO)nH and (II) R1.CO.O-(CmH2mO)nH are treated with one or more acids R-O-(CmH2mO)#cR11-COO to reduce the adverse effects of residual alkaline catalysts used in the preparation thereof. R represents a C8-C20 hydrocarbon group, R1 a C7-C19 hydrocarbon group, R11 a C1-C3 alkylene group, m is an integer of 2-4 and n and #c each represent an average number of alkylene oxide groups in range 1-50. The product contains a minor amount of one or more alkali metal salts resulting from the reaction, and the acid used preferably has oxyethylene units equal to the main product. Examples describe the treatment of adducts of oleyl alcohol and epoxyethane with lauryl-polyoxyethylene acetic acids; nonyl phenol and epoxyethane with p-octylphenoxy polyethoxyacetic acid; lauryl alcohol with epoxyethane, and stearic acid with epoxyethane with p-octylphenoxypolyethoxy acetic acid and C18H37O-(C2H4O)2CH2COOH respectively. |
