发明授权
- 专利标题: Process for crumpling synthetic suede
- 专利标题(中): 破碎合成方法
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申请号: US33856573申请日: 1973-03-06
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公开(公告)号: US3899292A公开(公告)日: 1975-08-12
- 发明人: OKAZAKI KAORU , YAGI KENKICHI , OKAMOTO MIYOSHI , WATANABE KOJI , HIKOTA TOYOHIKO , KUBO MASAYOSHI
- 申请人: TORAY INDUSTRIES
- 专利权人: Toray Industries
- 当前专利权人: Toray Industries
- 优先权: US33856573 1973-03-06; JP2857272 1972-03-23; JP12767872 1972-12-21
- 主分类号: C08G18/12
- IPC分类号: C08G18/12 ; C08G18/40 ; D04H1/64 ; D06N3/00 ; D06N3/14 ; D06P3/82 ; D06P7/00
摘要:
Preparing suede-like leather sheet materials by passing a napped sheet with a fluid through a venturi-nozzle having a predetermined inner area. The sheet has naps of superfine denier fiber at least on one surface, and comprises (a) a non-woven fabric made up to 0.01-0.3 denier superfine staple fibers of breaking strength below 3 grams and an elongation at break of 60180 percent and (b) a polyurethane elastomer obtained by reacting a diol mixture by weight of about 20-40 parts of polycaprolactone diol of a molecular weight of about 1000-3000 and about 60-80 parts of polytetramethyleneetherglycol of a molecular weight of about 1000-3000 with an organic diisocyanate and a diamine chain extender.
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