Kuraray Co., Ltd.

Kazuo Nagoshi

Osamu Fukushima

Toshiaki Iwamoto

A sheet material having leather-like grain, excellent scuffing and abrasion resistance and superior dyeability comprising in combination, a substrate, and 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. In preparation of this sheet material, the intermediate layer is pressed and condensed to about 10 to 90% to a density of from about 0.20 to 0.50 g/cc.

Method of making sheet material

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.

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Kurashiki, Japan

Kazuo Nagoshi