| 摘要 |
To propose a baking-drying water damping paint composition from which heavy film-thickness damping paint films can be obtained, heavy film-thickness damping paint films in which an inorganic filler is filled into the resinous component of paints to higher extent, and which are free from the occurrence of cracks and swelling in the paint films when the paint films are baked and dried. <??>The composition comprises a water emulsion including at least one first granular resin selected from the group consisting of styrene-butadiene copolymers, acrylic ester copolymers and ethylene-vinyl acetate copolymers whose glass transition temperature is from 0 to 20 DEG C and gel ratio is from 60 to 80%, and an inorganic filler in an amount of 200 parts by weight or more with respect to 100 parts by weight of said first granular resin. By using water emulsion particles whose gel ratio is controlled in the specific range, it is possible to obtain cured paint films which are free from the occurrence of cracks and swelling in the paint films and which exhibit a high damping effect stably even when the inorganic filler is filled to higher extent and the paint films are further dried at ordinary baking temperatures. |
