| 摘要 |
<p>A sound absorbing film which comprises a polymer material and, incorporated therein, an active agent which increases a dipole moment, characterized as comprising further an anti-blocking agent comprising calcium carbonate in an amount of 1 to 20 wt %. The sound absorbing film is extremely easy to handle and can be used in a variety of applications such as a precision device, for example, a sound recording/playback system using a magnetic medium such as a tape recorder, a MD recorder or a digital audio taperecorder (DAT) and a picture recording/playback system such as a video recorder or a video camera; a soundproofing cover applied for a pipe in a building; a liner for a household electrical appliance or a vehicle; and an interior material.</p> |
