| 摘要 |
To provide an emulsion for vibration damping materials: excellent in vibration damping property in a wide temperature range, thermal drying property, and film-forming property at low temperatures; and sufficiently suppressing sagging of a vibration damping coating film on the vertical surface; and therefore useful for vibration damping materials of various structures. An emulsion for vibration damping materials, comprising a particle having: a core part formed from an acrylic copolymer (A) ; and a shell part formed from an acrylic copolymer (B), wherein at least one of the acrylic copolymer (A) and the particle having the core part and the shell part has a weight average molecular weight of 20000 to 250000.
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