| 摘要 |
PROBLEM TO BE SOLVED: To obtain a foamable resin compsn. of which the timing of resin melting coincides with that of blowing agent decomposition and which exhibits an improved foaming behavior by compounding a specific acrylic resin dispersion with a thermally decomposable blowing agent, a decomposition accelerator, and a filler. SOLUTION: 100 pts.wt. (in terms of the solid resin) acrylic resin dispersion contg. a (meth)acrylic ester homo- or copolymer and having a Ti value of -5 to 20 deg.C and lowest film forming temp. of not more than 15 deg.C is compound with 0.5-10 pts.wt. thermally decomposable blowing agent, 0.2-8 pts.wt. decomposition accelerator, and 50-200 pts.wt. filler having a particle size of 0.1-30μm.
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