To provide a polymer dispersion able to be produced without using an emulsifier or a large amount of solvent and giving a coated product having good mechanical and optical characteristics.
The method for producing the water-based hydroxy functional polyester-polyacrylate dispersion is to prepare a polymer P in a first process by polymerizing a mixture of free radically copolymerizable vinyl monomers in the presence of a reaction product of glycidyl versatate, mixing the polymer P with ≥1 polyester polyols having 10-500 mgKOH/g solid hydroxyl value and >0.5 to ≤30mgKOH/g solid acid value, and dispersing the prepared polymer mixture in water before or after adding a neutralization agent. The prepared water-based hydroxy functional polyester-polyacrylate polymer dispersion and a water-based coating composition containing the dispersion are provided.
JPS5753546 | POLYMER COMPOSITION |
GEWISS HEINZ-DIETMAR
MUENZMAY THOMAS
MARTIN MELCHIORS
Yasuo Shibata
Kenichi Morizumi
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