发明授权
- 专利标题: Grain leather-like sheet having excellent scratch resistance and abrasion resistance
- 专利标题(中): 粒状皮革状片材具有优异的耐擦伤性和耐磨性
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申请号: US11993628申请日: 2006-06-20
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公开(公告)号: US07820574B2公开(公告)日: 2010-10-26
- 发明人: Tetsuya Ashida , Norio Makiyama
- 申请人: Tetsuya Ashida , Norio Makiyama
- 申请人地址: JP Kurashiki-shi
- 专利权人: Kuraray Co., Ltd.
- 当前专利权人: Kuraray Co., Ltd.
- 当前专利权人地址: JP Kurashiki-shi
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2005-180595 20050621
- 国际申请: PCT/JP2006/312316 WO 20060620
- 国际公布: WO2006/137394 WO 20061228
- 主分类号: B32B27/12
- IPC分类号: B32B27/12
摘要:
A grain-finished leather-like sheet having a fibrous substrate layer, a polyurethane non-porous layer and a polyurethane surface layer which are successively laminated in this order. The polyurethane surface layer contains a binder polyurethane and polyurethane fine particles having a particle size of 1 to 50 μm. The total thickness of the polyurethane non-porous layer and the polyurethane surface layer is 150 μm or more. The polyurethane surface layer contains the polyurethane fine particles in an amount of 10 to 40 parts by mass per 100 parts by mass of the binder polyurethane. The polyurethane fine particles are not exposed to the surface. The grain-finished leather-like sheet characterized by the above features has a smooth and luster surface, a good hand, and excellent scratch resistance, abrasion resistance and buckling wrinkle resistance. The sheet hardly damages or soils an object which is in contact with its surface by friction.
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