| 摘要 |
<p>A highly flexible leather-like sheet material has a base layer of a fibrous aggregate containing a first polymer principally containing a first elastic polymer and, provided on the surface thereof, a coating layer of a second polymer principally comprising a second elastic polymer, said coating layer containing the two layers of a wet-formed porous intermediate coating layer integrated with the base layer and having a thickness of 10 to 40 mu m and having continuous pores with a maximum pore diameter of 1 to 30 mu m and a dry-formed porous surface coating layer having a thickness of 20 to 80 mu m and having continuous pores with a maximum pore diameter of substantially not more than 20 mu m and an average pore diameter of, preferably, 1 to 5 mu m obtained by extracting off fine particles, the two layers both containing a softening agent.</p> |
