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Title:
GRAINED LEATHER-LIKE SHEET
Document Type and Number:
WIPO Patent Application WO/2020/203243
Kind Code:
A1
Abstract:
This grained leather-like sheet is provided with: a fiber base material; a polyurethane intermediate layer stacked on the fiber base material; and a polyurethane surface film stacked on the polyurethane intermediate layer directly or with another polyurethane layer therebetween, wherein the polyurethane surface film contains a silicone-modified polyurethane, and has an uneven surface in which the skewness (Ssk), the kurtosis (Sku), and the maximum height (Sz) of the surface roughness based on ISO 25178 respectively satisfy -0.4 ≤ Ssk ≤ -0.2, 3 ≤ Sku ≤4, and 60 µm ≤ Sz ≤ 150 µm.

Inventors:
ASHIDA TETSUYA (JP)
HARA KANSAI (JP)
Application Number:
PCT/JP2020/011609
Publication Date:
October 08, 2020
Filing Date:
March 17, 2020
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
D06N3/14; B32B5/24; B32B27/12; B32B27/40
Domestic Patent References:
WO2019004180A12019-01-03
WO2018221301A12018-12-06
WO2006137394A12006-12-28
Foreign References:
JP2002339262A2002-11-27
JP2000248472A2000-09-12
JP3071383B22000-07-31
JP2017078242A2017-04-27
JP2013194336A2013-09-30
JPH05279967A1993-10-26
JP2016211129A2016-12-15
JP2012107101A2012-06-07
Attorney, Agent or Firm:
EGAWA Masaru et al. (JP)
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