Coating composition
A composition and coating technology, applied in polycarbonate coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as the inability to obtain coating films, and achieve the effects of excellent acid resistance and excellent initial scratch resistance
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[0134] [Example 1]
[0135] As a hydroxyl group-containing acrylic resin, Setalux 1152 (xylene / methoxypropyl acetate mixed solution, solid content 61% by mass, hydroxyl value in terms of solid content, 139 mgKOH / g, hydroxyl group-containing acrylic resin, manufactured by Nuplex Corporation) was added. Number average molecular weight 3000) 295 g, polycarbonate polyol PC1 20 g, leveling agent BYK-331 (manufactured by BYK Chemical Co., Ltd.) 2.06 g, dibutyltin dilaurate (manufactured by Air Products Industry Co., Ltd.) 1.2 g, After stirring with a mixed solvent of xylene / butyl acetate (70 / 30) as a diluent, a paint main agent (polycarbonate polyol in the main agent other than the solvent) having a solid content of 50% by mass was obtained. ratio of 10%). Duranate TKA-100 (manufactured by Asahi Kasei Co., Ltd.: hexamethylene diisocyanate-based isocyanurate type curing agent, NCO content = 21.8 wt %, isocyanate group in 1 molecule: 3) was added as a curing agent to this. The mixtu...
Example Embodiment
[0136] [Example 2]
[0137] A coating composition was produced in the same manner as in Example 1, except that the polycarbonate polyol PC2 of Example 1 was used instead of the polycarbonate polyol PC1. The coating film performance was evaluated, and the results are shown in Table 1.
Example Embodiment
[0138] [Example 3, 4]
[0139] A coating composition was obtained in the same manner as in Examples 1 and 2, except that the addition amount of Setalux 1152 of Example 1 was 230 g and the addition amount of the polycarbonate polyol was 60 g.
[0140] The coating film performance was evaluated, and the results are shown in Table 1.
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