Polyester from 9,9-bis(perfluoroalkyl)xanthene diol or 9-aryl-9-

Details Polyester from 9,9-bis(perfluoroalkyl)xanthene diol or 9-aryl-9- Polyester from 9,9-bis(perfluoroalkyl)xanthene diol or 9-aryl-9-

1991-06-21

1992-03-31

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528183, 528185, 528188, 528190, 528191, 549388, C08G 6302, C07D31182

Patent

active

051010046

ABSTRACT:
Disclosed are rigid fluorinated monomers, their preparation, and polymers derived therefrom based on two novel tricyclic xanthene core systems, 9,9-bis(perfluoroalkyl)xanthene (I) and 9-phenyl-9-perfluoroalkylxanthene (II). The monomers have utility in the preparation of advanced high-performance polymers, particularly polyimides.

REFERENCES:
patent: 4698295 (1987-10-01), Pfeifer et al.
patent: 5051520 (1991-09-01), Trofimenko

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