Sound insulation buffer material and method for manufacturing sound insulation buffer material

The present invention addresses the problem of providing a sound insulation buffer material having excellent impact resistance and sound insulation properties, and also having excellent freezing resistance and water repellency. The surface of a non-woven fabric (4) having a large number of intertwined short fibers in a sound-insulating buffer region (2) is also exposed on the surface of the sound-insulating buffer material (1) on the opposite side from the tire-side surface, and the surface of a continuous resin region (3a) is provided next to/adjacent to the surface of the sound-insulating buffer material (1) so as to be substantially continuous and exposed. As a result of this configuration, there is no member covering the front and back surfaces of the sound-insulating buffer region 2, and the sound-absorbing capacity of the sound-insulating buffer region 2 is not reduced by the covering. The resin region (3) suppresses water absorption and improves freezing resistance and water repellency. 本发明的课题是提供一种耐冲击性