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US 4,059,563 AGranted
Novel phenol antioxidants
AssigneeNippon Zeon Co., Ltd.
InventorsKuniaki Goto, Harumi Asai, Tadao Natsuume
Life of this patent
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Abstract
A phenol derivative of the general formula ##STR1## wherein R is a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, and X and Y, which may be identical or different, each represent a cyclopentyl or cyclohexyl group.
Claims6
In a process for inhibiting the deterioration of degradable polymeric and oily substances by adding an antidegradation agent to said degradable substance the improvement which comprises adding to said degradable substance from 0.01 to 5 parts by weight per 100 parts by weight of the degradable substance of at least one p-cresol compound of the formula:
- ##STR4## wherein X and Y each represent a cyclopentyl group.
Dependencies are inferred from the claim text.