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Method of manufacturing self-emulsified urethane aqueous dispersions and method of manufacturing core-shell emulsion resin composition using the same
Method of manufacturing self-emulsified urethane aqueous dispersions and method of manufacturing core-shell emulsion resin composition using the same
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机译:自乳化聚氨酯水性分散体的制造方法以及使用其的核壳乳液树脂组合物的制造方法
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摘要
In order to prepare an alkaline expansive core-shell emulsion resin composition applicable to an aqueous base coat paint composition for an automobile using a urethane aqueous dispersion as an emulsifying agent, first, anionic urethane aqueous dispersion having an acid value of about 50-150 mgKOH/g is prepared. Then, an alkaline expansive core-shell emulsion resin is prepared by using the urethane aqueous dispersion as an emulsifying agent. Flowing or stain after coating may be prevented when using a paint composition prepared by using thus prepared emulsion resin. Water-resistance of a coating layer and alignment of metallic particles are improved.
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