Pyromellitic dimiides of 3,5-dialkyl-4-hydroxyphenylsubstituted

Details Pyromellitic dimiides of 3,5-dialkyl-4-hydroxyphenylsubstituted Pyromellitic dimiides of 3,5-dialkyl-4-hydroxyphenylsubstituted

1976-09-14

1978-09-26

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4585S, 260326C, C08K 534

Patent

active

041169301

ABSTRACT:
Pyromellitic diimides of 3,5-dialkyl-4-hydroxyphenylsubstituted amines of this invention effectively stabilize organic materials against the effects of heat and oxygen. The diimides of this invention are prepared by reacting the appropriate 3,5-dialkyl-4-hydroxyphenylsubstituted amine with pyromellitic anhydride or pyromelletic diimide. An example of this class of stabilizer is N,N'-bis(3,5-di-t-butyl-4-hydroxyphenyl)pyromellitic diimide.

REFERENCES:
patent: 3536670 (1970-10-01), Aelony et al.
Chem. Abstracts, 67:116726d.

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