发明授权
- 专利标题： Process for the preparation of highly elastic polyurethane flexible foams and their use as upholstery material
- 专利标题（中）： 制备高弹性聚氨酯弹性纤维的方法及其作为上胶材料的使用
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申请号： US737638申请日： 1991-07-30
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公开(公告)号： US5158987A公开(公告)日： 1992-10-27
- 发明人: Hans Hettel , Peter Haas
- 申请人： Hans Hettel , Peter Haas
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX4024669 19900803
- 主分类号： A47C27/14
- IPC分类号： A47C27/14 ; B68G5/02 ; C08G18/00 ; C08G18/08 ; C08G18/40 ; C08G18/48 ; C08G18/65 ; C08G18/66 ; C08G101/00 ; C08J9/02
摘要：
The invention relates to a process for preparing highly elastic polyurethane flexible foams by the reaction of(a) polyisocyanates with(b) polyethers having a molecule weight of from 400 to 10,000 and containing at least two isocyanate-reactive hydrogen atoms,in the presence of(c) water and(d) mixtures of crosslinking agents having a molecular weight of from 32 to 399 and containing at least two isocyanate-reactive hydrogen atoms, wherein said mixtures contain(I) alkanolamines and(II) amine-free polyols,with the proviso that components (c) and (d) must be used together as an aqueous solution.
公开/授权文献
- US6091403A Computer interface 公开/授权日：2000-07-18
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