Aqueous resin dispersion

Details Aqueous resin dispersion Aqueous resin dispersion

C - Chemistry, Metallurgy

08

L

C08L 63/10 (2006.01) C08L 63/00 (2006.01) C08L 101/00 (2006.01) C09D 5/44 (2006.01)

Patent

CA 2124530

Abstract of the Disclosure An aqueous resin dispersion which comprises as the chief component acrylic-modified epoxy-polyamine resin composed of a bisphenolic epoxy resin containing at least two epoxy groups per molecule and, as bound to at least a part of said epoxy groups, an acrylic resin having on the average at least one functional group which is capable of reacting with said epoxy group, per mole- cule, the molecular weight distribution of said acrylic resin as expressed by its weight average molecular weight (Mw)/number average molecular weight (Mn) being within a range of 1 to 1.2, and an active hydrogen-containing amino compound. Said aqueous resin dispersion may fur- ther optionally contain non-ionic, film-forming resin. Such dispersions are useful for cationic electrodeposi- tion paint which can form a coating excelling in weatherability and corrosion resistance.

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