Self-supported, oriented high-performance films having minimal t

Details Self-supported, oriented high-performance films having minimal t Self-supported, oriented high-performance films having minimal t

1973-05-14

1976-02-17

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775CH, 260 775R, 260 775C, 260 775AA, 260 775A, 264235, 264288, 264290N, C08G 1800

Patent

active

039391167

ABSTRACT:
Highly unusual and useful novel high-performance, oriented, lowcrystalline, essentially heterocyclic structures, e.g. films, are prepared from certain novel and important process sequences. These structures, e.g. films and fibers, possess a unique combination of minimal shrinkage at high temperatures, after orientation, coupled with negligible coefficent of expansion over an unusually wide temperature range.

REFERENCES:
patent: 3455879 (1969-07-01), Gay et al.
patent: 3642709 (1972-02-01), Agolini et al.

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