改善された屈曲耐久性を有する合成皮革

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专利权人:

ビーエーエスエフ ソシエタス・ヨーロピアＢＡＳＦ ＳＥ

发明人:

レトル，フランツ クサファー,エムゲ，アンドレアス,フォン，ユエシヤ,チェン，チェウン‐クオ,ヤン，シヤオ‐クン,レーゼ，オリファー

申请号：

JP20140531168

公开号：

JP6140167(B2)

申请日:

2012.09.10

申请国别(地区):

日本

年份:

2017

代理人:

摘要：

The present invention relates to a process for production of artificial leather comprising top coat, polyurethane layer and optional substrate layer, said process comprising i) providing a release layer, ii) applying one or more than one layer of a top coat to the release layer to an overall top coat layer thickness in the range from 1 to 500 μm, iii) applying first polyurethane system components comprising an isocyanate component (A) and a polyol component (B) to the top coat to form a first polyurethane layer, wherein the isocyanate index of the first polyurethane system components is in the range from 101 to 140, iv) optionally applying further polyurethane system components to the first polyurethane layer to form further polyurethane layers, v) optionally applying a substrate layer to the polyurethane system components, vi) curing the polyurethane system components to form a polyurethane layer, and vii) separating the release layer from the top coat, wherein the overall thickness of the first and optio

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