Aminophthalic anhydride copolymers

Details Aminophthalic anhydride copolymers Aminophthalic anhydride copolymers

1975-05-12

1977-12-20

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 302, 260 308R, 260 324, 260 326NA, 260 334R, 260 47CZ, 260 49, 260 63N, 260 65, 260 78TF, C08G 6912

Patent

active

040641139

ABSTRACT:
Processes are described for the preparation of substantially pure aminophthalic anhydrides and for polymerizing these monomers to unmodified and modified improved polyamic acid and polyimides.

REFERENCES:
patent: 3951922 (1976-04-01), Richter

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