Phenolic amides and their use as stabilizers

Details Phenolic amides and their use as stabilizers Phenolic amides and their use as stabilizers

1999-01-26

2000-08-15

Gorr, Rachel

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

524222, 524 82, 524 86, 524107, 524721, 528 73, 521166, 25218229, C08G 1830

Patent

active

061037761

ABSTRACT:
Phenolic amides, useful as stabilizers for organic materials such as polyols and polyurethanes, possess the general formula ##STR1## wherein n is 0 to 3, R.sub.1 is alkyl of from 1 to about 6 carbon atoms, R.sub.2 is hydrogen or alkyl of from 1 to about 6 carbon atoms, R.sub.3 is hydrogen or hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, R.sub.4 is hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, or R.sub.3 and R.sub.4 together with the nitrogen atom to which they are bonded are joined together to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms.

REFERENCES:
patent: 4228297 (1980-10-01), Haeberli et al

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