Aqueous resin composition, aqueous coating composition and coating method for plastic molded articles
A water-based resin and water-based paint technology, applied in coatings, latex paints, etc., can solve the problems of coating film hardness, insufficient damage resistance and water resistance, and achieve the effects of excellent adhesion and solvent resistance.
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[0072] Example 1
[0073] A four-necked flask equipped with a thermometer, a stirring device, and a reflux condenser was replaced with nitrogen, and "SU-P-CRON S-851LS" (manufactured by Nippon Paper Co., Ltd., trade name, maleic anhydride modified chlorinated Polyolefin) 100g, tetrahydrofuran 190g, fully dissolved at 65°C. Then, 40 g of 1-butanol and 3 g of dimethylethanolamine were added and stirred for 15 minutes, and then 300 g of deionized water was added for dispersion. Then, the solvent portion was distilled off under reduced pressure at 65°C to obtain an acid-modified chlorinated polyolefin aqueous dispersion (A-1). The solids concentration of the dispersion was 30%, and the pH was 8.1.
[0074] Then, to 133.3 g of the above-mentioned aqueous dispersion (A-1), 131.9 g of deionized water was added to dilute with the stirring of the disperser, and 60 g of the polymerizable monomer mixture (b-1) in the following table 1 was added. And 4 g of "Adika Riako-PSR-1025" (manufacture...
Example
[0075] Examples 2~6
[0076] In Example 1, the composition of the polymerizable monomer mixture was changed to the composition described in Table 1, except that the operation was performed in the same manner as in Example 1, to obtain an aqueous resin composition (I-2) ~(I-6).
[0077] Table 1
[0078]
Example Embodiment
[0082] Example 7
[0083] A four-necked flask equipped with a thermometer, a stirring device, and a reflux condenser was replaced with nitrogen, 100 g of "S-Pakron S-851LS" and 190 g of tetrahydrofuran were added to the flask, and it was fully dissolved at 65°C. Next, 2.6 g of dibutylamine and 3 g of dimethylethanolamine were added and stirred for 15 minutes, and then 300 g of deionized water was added for dispersion. Then, the solvent was distilled off under reduced pressure at 65°C to obtain an acid-modified chlorinated polyolefin aqueous dispersion (A-3). The solids concentration of the dispersion was 30%, and the pH was 8.2.
[0084] Then, to 133.3 g of the above-mentioned aqueous dispersion (A-3), 131.9 g of deionized water was added to dilute with stirring of the disperser, and 60 g of the polymerizable monomer mixture (b-1) in Table 1 and "アデカリアソ" were added. -プSR-1025" 4g. It was transferred to a four-necked flask equipped with a thermometer, a stirring device, and a reflu...
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