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US 4,018,954 AGranted
Sheet material
AssigneeKuraray Co., Ltd.
InventorsOsamu Fukushima, Kazuo Nagoshi, Toshiaki Iwamoto
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AssigneeKuraray Co., Ltd.
InventorsOsamu Fukushima, Kazuo Nagoshi, Toshiaki Iwamoto
Estimating the term…
A sheet material having leather-like grain, excellent scuffing and abrasion resistance and superior dyeability comprising in combination, a substrate, an intermediate layer of 0.05 to 2.5 mm thickness consisting of a finely napped porous polymer bonded to said substrate and an upper layer consisting of a polymeric coating of thickness ranging from 1-100 microns. In typical embodiments, the upper layer may be a polymeric coating material such as linear or cross-linked polyurethanes, the intermediate layer may be a porous polyester, polyamide, vinyl or elastomeric polymer, e.g. a polyurethane, and the substrate may be a woven or non-woven fabric. The upper layer is a laminar structure comprising a plurality of laminae, the bottom lamina consisting of a cross-linked polyurethane elastomer.
A sheet material having leather-like grain, excellent scuffing and abrasion resistance and superior dyeability comprising in combination a fibrous substrate, an intermediate layer consisting of a finely napped porous polymeric layer bonded to said substrate and an upper layer consisting of a non-porous laminar polymeric layer completely covering and bonded to said finely napped porous polymeric layer,
Dependencies are inferred from the claim text.