| 摘要 |
The present invention relates to aqueous resin which may be used in aqueous coating agent, adhesive, paint base, (binder) resin or modifier thereof and relates also to a method of manufacturing the resin. The present invention provides a method of manufacturing composite aqueous dispersion and aqueous dispersion resin, which are capable of solving the drawbacks of the convention which arise particularly when aqueous polyurethane resin is to be modified by aqueous acrylic resin, namely, the low modifying effect, non-uniformity of the film formed and troublesomeness of manufacturing the aqueous dispersion resin attributable to, e.g., the low compatibility and non-abundance of the covalent bond. The invention's method is characterized by the step of dispersing a polyurethane prepolymer including hydrolytic silicon in the molecule thereof within an aqueous resin polymer of ethylenic unsaturated monomer dispersion including hydrolytic silicon in the molecule thereof. Preferably, the polyurethane prepolymer including hydrolytic silicon in the molecule thereof and the aqueous resin polymer of ethylenic unsaturated monomer dispersion including hydrolytic silicon in the molecule thereof are used in a solid weight ratio ranging in 0.5-99.5/99.5-0.5.
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