Process for the production of overbased calixarates

Compositions – Electrolytes for electrical devices

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252 18, 252 39, 568631, 568632, 568633, 549348, C10M14500, C07C 3522

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active

052059464

ABSTRACT:
Non-sulphurized overbased metal salts of sulphur-free calixarenes having a substituent hydroxyl group or groups available for reaction with metal base and their preparation are claimed. The salts are useful as additives to lubricating oils by reason of their acids neutralization capability, their detergent and their antioxidant properties.

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Calixarenes. 4. The Synthesis, Characterization, and Properties of the Calixarene from p-tert-Butylphenol, Gutsche et al. J. Amer. Chem. Soc. 1981.

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