| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight substrate material for a non-wood-based floor finishing material, which has good cuttability, excellent water resistance, and impact resistance better than that of an existing foam substrate material. SOLUTION: In this substrate material for the non-wood-based floor finishing material, a surface material is laminated on at least one side of a resin foam, preferably, in which an average value of an aspect ratio Dz/Dx of contained air bubbles is in the range of 1.1-4.0 and the expansion ratio of which is in the range of 3-20 times. In this case, preferably, the surface material, preferably, a synthetic resin sheet is laminated on one side, and a fiber assembly, preferably, a nonwoven fabric is laminated on the other side. COPYRIGHT: (C)2007,JPO&INPIT
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