Nippon Shokubai Co., Ltd.

Kenta Kanaida

Kiyoshi Kawamura

Yoshihiro Arita

Satoshi Yamada

Koichiro Saeki

Takashi Miyai

Makoto Mizushima

The present invention provides an aqueous resin composition, which has good driability, and which is excellent in adhesion and various resistances, particularly, water and solvent resistances. The aqueous resin composition comprises a combination of: an anionic resin and/or an amphoteric resin; a polyoxazoline compound; and a multivalent metal compound.

Aqueous resin composition

There is provided an aqueous resin composition which does not cause coagulation, can be cured at low temperature, and, by this curing, forms a coating superior in mechanical strength, water resistance, solvent resistance and adhesion to various substrates. The aqueous resin composition of this invention comprises an oxazoline group-containing polymer (A), a carboxyl group-containing polymer (B), and an acidic compound-amine salt catalyst (C). The curing is carried out by a reaction between the oxazoline group-containing polymer (A) and the carboxyl group-containing polymer (B) in the presence of the acidic compound-amine salt catalyst (C).

Aqueous resin composition and curing process

An aqueous resin composition includes a polymer and an aqueous medium, wherein the polymer at least partially includes a polyolefin chloride resin and has a carboxyl group and an oxazoline group.

A 2-oxazoline group-containing water-soluble polymer in which the residual amount of an oxazoline monomer has been reduced is produced. An acrylic ester is copolymerized during the polymerization reaction of an addition-polymerizable oxazoline.

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Osaka, Japan

Kenta Kanaida