Leather-like sheet and process for production thereof
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United States of America Patent
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Issued Date -
Jan 12, 2006
app pub date -
Aug 21, 2003
filing date -
Aug 22, 2002
priority date (Note) -
Abandoned
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Abstract
A leather-like sheet product comprising a substrate which contains a bundle of fine fibers, wherein the substrate comprises (1) a first substrate layer having a structure that it is composed of an elastic polymer and a bundle of fine fibers and the elastic polymer surrounds the fiber bundle and is not existent in the inside space of the fiber bundle and (2) (i) a second substrate layer (A) having a structure that it is composed of (i) a bundle of fine fibers or (ii) a second substrate layer (B) having a structure that it is composed of an elastic polymer and a bundle of fine fibers, the elastic polymer surrounds the fiber bundle and is not existent in the inside space of the fiber bundle, and the total space area of all the voids in the elastic polymer surrounding the fiber bundle is larger than that of the first substrate layer, and (3) the structure of the first substrate layer and the structure of the second substrate layer change continuously in the direction of thickness.
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