Hexafluoroisopropylidene-containing polyimide oligomers and poly

Details Hexafluoroisopropylidene-containing polyimide oligomers and poly Hexafluoroisopropylidene-containing polyimide oligomers and poly

1988-05-06

1990-08-28

Foelak, Morton

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

Synthetic resins

From ketone or ketene reactant

528352, C08G 6942, C08G 7500

Patent

active

049526669

ABSTRACT:
Polyimide polymers having a relatively low dielectric constant and good solvent resistance, are formed by polymerization of a polyimide oligomer having the formula ##STR1## wherein R is selected from the group consisting of: --C.tbd.CH,

REFERENCES:
patent: 3356648 (1967-12-01), Rogers
patent: 3845018 (1984-10-01), Bilow et al.
patent: 3879349 (1975-04-01), Bilow et al.
patent: 4654223 (1987-03-01), Araps et al.
"An Acetylenic-Terminated Fluorinated Polyimide, Properties and Applications", by D. J. Capo et al, pp. 710-721, National Starch & Chemical Corp., P.O. Box 6500, Bridgewater, N.J. 08807.

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