Phosphorus substituted 4-methyloxetan-2-ones, processes for thei

Compositions – Electrolytes for electrical devices

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252 498, 204158R, 549222, 549214, C10M 120, C10M 126, C10M 144, C07D30512

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active

043849660

ABSTRACT:
Compounds having the formula ##STR1## are described, wherein X is oxygen or sulphur or the moiety X is absent and A and D are as defined in claim 1. Compounds I may be prepared by reacting a compound ##STR2## with diketene in the presence of an agent capable of forming free radicals. They are useful as friction modifiers and/or antiwear additives in lubricating oils or for imparting flame-retardancy to natural or synthetic polymers.

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