Fluorinated tris-epoxides based on triphenyl methane

Details Fluorinated tris-epoxides based on triphenyl methane Fluorinated tris-epoxides based on triphenyl methane

1986-07-10

1988-01-05

Nielsen, Earl

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528102, 549523, 549550, 549559, C08G 5932, C07D30302, C07D30308

Patent

active

047177608

ABSTRACT:
Epoxides of the invention are those of the formula ##STR1## wherein J is H or F, the same in each occurrence; Q is a valence bond or --O--, the same in each occurrence; and Y is H or F, independently. When cured, these epoxides are superior in moisture resistance, flame retardance, and thermal stability to the corresponding non-fluorinated, prior art epoxides. The epoxides of the preceding formula may be made by first reacting an allylic halide of the formula CJ.sub.2 .dbd.CJ--CJ.sub.2 --X, wherein X is halogen, with a compound of the formula ##STR2## wherein Z is MO, hal.Mg or Ag; M is an alkali metal; and hal=Br or I; then if Y is to be F, converting the --CH group to a --CF group, and finally, oxidizing the CJ.sub.2 .dbd.CJ group to a ##STR3## group.

REFERENCES:
patent: 3706772 (1972-12-01), Reines
patent: 3879430 (1975-04-01), O'Rear et al.
patent: 4394496 (1983-07-01), Schrader

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