NEW 3-ARYLBENZOFURANONES WITH ELECTRON-WITHDRAWING SUBSTITUENTS AS STABILIZERS
申请人:Ciba Specialty Chemicals Holding Inc.
公开号:EP1263860A1
公开(公告)日:2002-12-11
US6809208B2
申请人:——
公开号:US6809208B2
公开(公告)日:2004-10-26
[EN] NEW 3-ARYLBENZOFURANONES WITH ELECTRON-WITHDRAWING SUBSTITUENTS AS STABILIZERS<br/>[FR] 3-ARYLBENZOFURANONES A SUBSTITUANTS D'ELIMINATION D'ELECTRONS, UTILISEES COMME AGENTS STABILISATEURS
申请人:CIBA SC HOLDING AG
公开号:WO2001059000A1
公开(公告)日:2001-08-16
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.
3-Arylbenzofuranones with electron-withdrawing substituents as stabilizers
申请人:——
公开号:US20030212170A1
公开(公告)日:2003-11-13
The invention describes novel compounds of the formula (I) wherein the general symbols are as defined in claim (1) and R
1
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.