| 摘要 |
PROBLEM TO BE SOLVED: To obtain a finish coating material which has a viscosity enabling application with various applicating means and can form a thick coating film free from sagging or curtaining and improved in adhesiveness, humidity- controlling properties, water resistance, durability, and matte feeling by compounding a synthetic resin emulsion with a colloidal silica, a specific diatomaceous earth, and an inorg. powder in a specified wt. ratio. SOLUTION: This coating material is prepd. by compounding 100 pts.wt. (solid basis) synthetic resin emulsion obtd. by the emulsion polymn. of a monomer having a polymerizable double bond with 10-50 pts.wt. amorphous colloidal silica having a diameter of several nm to several tens of nm, 50-300 pts.wt. diatomeceous earth having an average particle size of 1-20μm and a bulk density of 0.2-0.6 g/cm<3> , 200-1,000 pts.wt. inorg. powder other than diatomaceous earth and having a bulk density of 0.2-0.6 g/cm<3> , and, if necessary, other additives such as an org. or inorg. pigment, a plasticizer, an antiseptic, an antifoaming agent, a dispersant, a thickener, and a drying adjusting agent in a ratio of diatomaceous earth to the inorg. powder of (1:1)-(1:10).
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