Sterically hindered phenols

Details Sterically hindered phenols Sterically hindered phenols

1995-10-11

1997-07-22

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

562 51, C07D25122

Patent

active

056505094

ABSTRACT:
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.

REFERENCES:
patent: 2527425 (1950-10-01), Keller et al.
patent: 3665031 (1972-05-01), Peterli et al.
patent: 5096456 (1992-03-01), Reinert
patent: 5181935 (1993-01-01), Reinert
Chem. Abstract, vol. 76, #12, #60909g, (1972), Yamashita.

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