摘要:
Provided is a process for producing an aqueous dispersion liquid, wherein, in an aqueous medium, an ethylene/(meth)acrylic acid copolymer (A) containing (meth)acrylic acid-derived constituent units in an amount of 8% by mass or more is neutralized by using an alkanolamine (B) and dispersed. The above-described alkanolamine (B) is preferably represented by general formula (1) below.
[In general formula (1) above, R 1 to R 3 represent independently of each other a hydrogen atom, an alkyl group, or a saturated aliphatic hydrocarbon group having one hydroxyl group, and at least one of R 1 to R 3 represents a saturated aliphatic hydrocarbon group having one hydroxyl group.]
摘要:
Disclosed is a method for producing an aqueous dispersion, which includes using ammonia (B) to neutralize and disperse an ethylene/methacrylic acid copolymer (A) in an aqueous medium in the presence of monohydric alcohol (C) containing 3 or more carbon atoms. The process allows for dispersion with ammonia and production of a low viscosity aqueous dispersion with better dispersibility and higher uniformity of the dispersed particles than a conventional process with ammonia neutralization.