Process for producing aqueous resin dispersion

A process for producing an aqueous resin dispersion, which comprises:

• dissolving a macromonomer that comprises a polymer skeleton having a glass transition temperature of 30.degree. C. or higher and having a radical polymerizable group bonded to one terminal thereof, a crosslinking polymer having a number average molecular weight of about 1000 or more and containing a radical polymerizable group at both terminals thereof, and an oil-soluble radical polymerization initiator in an alkyl moiety thereof to form a solution;
• subsequently emulsifying the solution in an aqueous medium in the presence of an emulsifying agent selected from either (A) an alkali sulfosuccinate anionic surfactant or (B) a surfactant comprising (i) from 2 to 98% by weight of an alkali sulfonate anionic sufactant other than (A) or an alkali sulfuric ester anionic surfacant, and (ii) from 98 to 2% by weight of a nonionic surfactant having an HLB value of 10 or more;
• and then
• copolymerizing the macromonomer, the cross-linking polymer and the alkyl acrylate at an elevated temperature.