发明授权
- 专利标题: Process for the preparation of heat-stable polyurethane urea elastomers
- 专利标题(中): 制备耐热聚氨酯脲弹性体的方法
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申请号: US620986申请日: 1990-11-30
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公开(公告)号: US5064875A公开(公告)日: 1991-11-12
- 发明人: Gerhard Grogler , Urs Thiery , Andreas Ruckes , Richard Kopp , Heinrich Hess
- 申请人: Gerhard Grogler , Urs Thiery , Andreas Ruckes , Richard Kopp , Heinrich Hess
- 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: DEX3940270 19891206
- 主分类号: C08G18/10
- IPC分类号: C08G18/10 ; C08G18/32 ; C08G18/65
摘要:
This invention relates to a process for preparing polyurethane urea elastomers by reacting (a) compounds containing at least two isocyanate-reactive groups and having a molecular weight in the range from about 400 to about 10,000; (b) polyisocyanates; and (c) aromatic diamines corresponding to the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen or alkyl.
公开/授权文献
- US5690648A Methods and apparatus for rolling a defibrillator electrode 公开/授权日:1997-11-25
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