Dispersant acrylic resin adhesive

Compared with the previous solvent-based resin, the water-dispersed resin can reduce the number of organic solvents contained so as an environmentally friendly resin, can be used for a variety of water-based coatings such as vehicles, plastic forming products, household appliances, steel products, large buildings, aircraft, building materials, construction, tile, woodworking, and other water-based coatings, in addition, It can also be used for adhesive, resist, printing ink and other purposes. In these areas, automotive decoration and automotive repair with transparent (clear top) finish paint and another automotive paint field, require a good appearance at the same time, but also require full stability and excellent film physical properties, especially high water resistance, and then with the improvement of environmental awareness in recent years, In order to achieve low VOC(volatile organic compounds) chemistry, it is urgently needed to reduce the organic solvent content sufficiently.

For the previous water-dispersed resins, a water-dispersed resin composition was disclosed in Bulletin No. 6-49367, which was obtained by neutralizing the resin mixture with alkali and then conducting water dispersion. The resin mixture consists of two acrylic resins with an antelope base and a light base as well as a non-water-soluble compound or resin with functional groups that can react with these groups. In addition, a water-based coating composition is disclosed in Bulletin No. 11-131017, which is a composition consisting of a light base polyol and a terminated polyisocyanate crosslinker. In addition, a water-based adhesive dispersion containing at least one copolymer having a gazelle group and/or gazelle group is disclosed in Bulletin No. 2004-162030 in the form of at least part of the gazelle group neutralized by triethanolamine. In addition, a water-based two-component PU(polyurethane) coating material containing a specifically modified vinyl polymer polyol dispersion and polyisocyanate is disclosed in Bulletin No. Table 2004-527588.

However, substances represented by these resin compositions coexist with isocyanate compounds in order to prevent the reaction of neutralizing alkali and isocyanate compounds, generally use triethylamine tertiary amine compounds tertiary) or its salts and oxidation or oxidation, to neutralize the base in the lipid, but these substances remain in the film, there is room for improvement in the water resistance of the film. In order to improve dispersion stability, the emulsifier is added in practice, so the influence of an emulsifier on the film should also be considered. In addition, while fully improving the water resistance and other physical properties of the film, fully adapting to the environmental problems in recent years, there is still room for research.