| abstract |
An alkylene oxide derivative represented by the following formula (I). RO- (AO) a -[(PO) b / (EO) c ] -H (I) (R represents a linear or branched alkyl group having 4 to 36 carbon atoms. AO is an oxyalkylene group having 3 or 4 carbon atoms, PO is an oxypropylene group, and EO is an oxyethylene group. A, b and c is the average number of moles added per molecule of the oxyalkylene group, oxypropylene group, and oxyethylene group, and 1 ≦ a ≦ 40, 1 ≦ b ≦ 40, 1 ≦ c ≦ 80, and (a + b + c) ≧ 20. [(PO) b / (EO) c ] represents a polyoxyalkylene group in which b moles of PO and c moles of EO are randomly bonded, and the random ratio x is 0.1 ≦ x <1. is there.) |