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

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

1981-03-20

1983-05-24

Shaver, Paul F.

Compositions

Electrolytes for electrical devices

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

Patent

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.

REFERENCES:
patent: 2450131 (1948-09-01), Hagemeyer
patent: 2585537 (1952-02-01), Coffman
patent: 2675392 (1954-04-01), Theobald
patent: 3432599 (1969-03-01), Hackmann
patent: 3994929 (1976-11-01), Allen et al.
patent: 4009152 (1977-02-01), Mormann et al.
patent: 4178286 (1979-12-01), Wasserman et al.
patent: 4207417 (1980-06-01), Vofsi et al.
patent: 4230720 (1980-10-01), Walker

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