| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for a redox emulsion polymerization achieving low residual monomer content and/or low volatile organic compound content in the polymer. SOLUTION: This method for producing an aqueous emulsion polymer comprises under an emulsion polymerization condition, at least one ethylenic unsaturated monomer and a free-radical redox initiator system, where the redox initiator system comprises a water soluble oxidizer, a non-water soluble oxidizer, a sulfinic acid or its salt and a reducing agent, and at least some of the ethylenic unsaturated monomer is brought into polymerization.
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