发明授权
US06809208B2 3-Arylbenzofuranones with electron-withdrawing substituents as stabilizers
失效
具有吸电子取代基的3-芳基苯并呋喃酮作为稳定剂
- 专利标题： 3-Arylbenzofuranones with electron-withdrawing substituents as stabilizers
- 专利标题（中）： 具有吸电子取代基的3-芳基苯并呋喃酮作为稳定剂
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申请号： US10203731申请日： 2002-08-12
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公开(公告)号： US06809208B2公开(公告)日： 2004-10-26
- 发明人: Michael Tinkl , Oliver Dosenbach , Peter Nesvadba , Martin Wolff , Bruno Rotzinger , Dietmar Mäder
- 申请人： Michael Tinkl , Oliver Dosenbach , Peter Nesvadba , Martin Wolff , Bruno Rotzinger , Dietmar Mäder
- 优先权： EP00810125 20000214
- 主分类号： C07D30783
- IPC分类号： C07D30783
摘要：
The invention describes novel compounds of the formula (I) wherein the general symbols are as defined in claim (1) and R1 is an aromatic radical with electron withdrawing substituents, as stabilizers for protecting organic materials, in particular polymers and lubricants, against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.
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