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US 4,288,361 AGranted
Substituted oxazolines as stabilizers
AssigneeCarstab Corporation
InventorsMary J. Zestermann, John F. Hussar
Life of this patent
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Abstract
Oxazolines having at least one 3,5-dialkyl-4-hydroxyphenyl alkanoie acid ester substituent are provided. Such oxazolines are found to be useful as antioxidants in organic substances normally susceptible to oxidative deterioration.
Claims15
A stabilized composition resistant to oxidative degradation comprising (a) an organic substance normally susceptible to oxidative deterioration and (b) a stabilizingly effective amount of an oxazoline compound which has the following formula:
- ##STR32## wherein R.sup.1 is ##STR33## R.sup.2 is, when n is 1, ##STR34## or a monovalent hydrocarbyl group having from 1 to 23 carbon atoms, R.sup.2 is, when n is 2, an alkylene group having from 1 to 8 carbon atoms,
- R.sup.3 and R.sup.4 are the same or different monovalent hydrocarbyl groups having from 1 to 8 carbon atoms,
- n is 1 or 2 and
- x is an integer of from 1 to 4.
1 more element
Dependencies are inferred from the claim text.