Thioesters and antioxidant compositions containing the same

Details Thioesters and antioxidant compositions containing the same Thioesters and antioxidant compositions containing the same

1990-09-10

1991-12-03

Dees, Jose G.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252404, 252405, 252406, 560 10, 560 15, 560152, C09K 1526, C07C32353

Patent

active

050698192

ABSTRACT:
The present invention relates to thioesters having the structural formula: ##STR1## wherein R.sup.x is selected from the group of formulae consisting of: ##STR2## R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group of radicals consisting of hydrogen or methyl; R.sup.4 and R.sup.5 are independently selected from the group of radicals consisting of hydrogen, alkyls having 1 to 18 carbon atoms, aryls having 6 to 10 carbon atoms, aralkyls having 7 to 9 carbon atoms, and radicals of the formula: ##STR3## and R.sup.6 is selected from the group of radials consisting of alkyls having 1 to 24 carbon atoms, aryls having 6 to 12 carbon atoms and aralkyls having 7 to 12 carbon atoms.
These thioesters are particularly useful as a synergist for conventional phenolic and amine antioxidants.

REFERENCES:
patent: 4772651 (1988-09-01), Dunski

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