发明授权
- 专利标题： Diisocyanates and processes for their production and use
- 专利标题（中）： 二异氰酸酯及其生产和使用的方法
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申请号： US434254申请日： 1995-05-03
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公开(公告)号： US5552507A公开(公告)日： 1996-09-03
- 发明人: Christian Wamprecht , Klaus Jost , Stefan Penninger
- 申请人： Christian Wamprecht , Klaus Jost , Stefan Penninger
- 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： DEX4417186.2 19940517
- 主分类号： C07C263/10
- IPC分类号： C07C263/10 ; C07C265/14 ; C08G18/77 ; C08G18/78 ; C08G18/79 ; C07C69/34 ; C07C265/02 ; C07D251/34
摘要：
Diisocyanates containing carboxylic acid ester groups corresponding to the formula: ##STR1## in which R and R.sup.1 represent specified groups are produced by phosgenation of the corresponding diamines, optionally present in the form of an ammonium salt. These diisocyanates are useful as starting materials in the production of plastics containing urethane and/or urea groups and as starting materials for the production of intermediate products used for the production of such plastics.
公开/授权文献
- US4977161A Isoxazolopyridine type mevalonolactones 公开/授权日：1990-12-11
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