Anti-oxidative, anti-thermal, and anti-actinic degradation amides of hydroxyphenylalkylthio alkanoic acids, compositions, and method of use therefor

Claim 1

The compound of the formula I ##STR20## wherein p and n are independently 1 to 4; m is 1 or 2; R 1 and R 2 are independently alkyl of 1 to 12 carbon atoms, cycloalkyl of 5 to 6 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 12 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 12 carbon atoms and R 2 additionally can be hydrogen; R 3 and R 4 are independently hydrogen, alkyl of 1 to 12 carbon atoms or phenyl; A when p=1 is a group --NHR 5 , R 5 is hydrogen, alkyl of 1 to 18 carbon atoms or a group of the formula ##STR21## wherein b is 0 to 2 and B is a direct bond or alkylene of 1 to 10 carbon atoms; A when p=2 is a group of the formulae ##STR22## or is a group --NH--B--NH--, wherein B has the meaning given above; A when p=3 is a group of the formula ##STR23## or of the formula ##STR24## wherein c is 2 to 6 and R 6 is alkyl of 1 to 4 carbon atoms; and A when p=4 is a group of formula ##STR25## or of formula ##STR26## wherein c and R 6 have the meanings given above.