发明公开
- 专利标题: Substituted hydroxylamine ester stabilizers
- 专利标题(中): 取代羟基胺酯稳定剂
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申请号: EP88810719.0申请日: 1988-10-20
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公开(公告)号: EP0314623A3公开(公告)日: 1990-10-17
- 发明人: Ravichadran, Ramanathan , Pastor, Stephen D.
- 申请人: CIBA-GEIGY AG
- 申请人地址: Klybeckstrasse 141 4002 Basel CH
- 专利权人: CIBA-GEIGY AG
- 当前专利权人: CIBA-GEIGY AG
- 当前专利权人地址: Klybeckstrasse 141 4002 Basel CH
- 优先权: US114992 19871026
- 主分类号: C07C239/08
- IPC分类号: C07C239/08 ; C07C323/18 ; C08K5/32 ; C08K5/37
摘要:
Substituted hydroxylamine ester stabilizers corresponding to the formula I
wherein n is an integer from 0 to 2, X is a direct bond, -S- or -CH₂S-, R₁ and R₂ independently are hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, allyl, aryl, aralkyl of 7 to 9 carbon atoms, said aralkyl substituted by alkyl of 1 to 36 carbon atoms, or R₁ and R₂ together with the nitrogen atom to which they are linked form a 5 - 7 membered heterocyclic ring, R₃ and R₄ independently are alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 6 carbon atoms, phenyl, alkaryl of 7 to 18 carbon atoms or aralkyl of 7 to 9 carbon atoms, and R₅ is hydrogen or the group
are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.
wherein n is an integer from 0 to 2, X is a direct bond, -S- or -CH₂S-, R₁ and R₂ independently are hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, allyl, aryl, aralkyl of 7 to 9 carbon atoms, said aralkyl substituted by alkyl of 1 to 36 carbon atoms, or R₁ and R₂ together with the nitrogen atom to which they are linked form a 5 - 7 membered heterocyclic ring, R₃ and R₄ independently are alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 6 carbon atoms, phenyl, alkaryl of 7 to 18 carbon atoms or aralkyl of 7 to 9 carbon atoms, and R₅ is hydrogen or the group
are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.
公开/授权文献
- EP0314623B1 Substituted hydroxylamine ester stabilizers 公开/授权日:1993-08-04
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