Sterically hindered phenols

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 251/70 (2006.01) C07C 309/51 (2006.01) C07C 323/66 (2006.01) C07D 251/68 (2006.01) C07D 413/04 (2006.01) D06M 13/152 (2006.01) D06M 13/156 (2006.01) D06M 13/256 (2006.01) D06M 13/358 (2006.01) D06M 13/402 (2006.01) D06P 1/62 (2006.01) D06P 1/642 (2006.01) D06P 1/649 (2006.01) D06P 1/651 (2006.01)

Patent

CA 2121722

Sterically hindered phenols Abstract of the Disclosure Sterically hindered phenols of formula (1) are disclosed. These antioxidants are suitable for enhancing the thermal and photochemical stability of undyed and dyed polyamide fibre materials. They are distinguished by superior exhaustion which is almost independent of the pH.

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