| abstract |
PROBLEM TO BE SOLVED: To provide an ethylene-vinyl alcohol copolymer having excellent storage stability by using a readily available drug or compound as a dispersion stabilizer instead of a modified ethylene-vinyl alcohol copolymer. Provision of an aqueous dispersion and a method for preparing the same. SOLUTION: This is an aqueous dispersion of an ethylene-vinyl alcohol copolymer to which a compound having an ether structure is added as a dispersion stabilizer, for example, by heating and dissolving a dispersoid copolymer in a water-alcohol mixed solvent, Thereafter, the mixture is cooled to precipitate and form dispersoid fine particles having a uniform particle diameter, and then a compound having an ether structure is added as a dispersion stabilizer to stir and disperse the dispersoid fine particles. -It is prepared in a step of distilling off the alcohol in the alcohol mixed solvent under reduced pressure. |