Bis(hydroxyphthalimide) and process for preparing the same, and

Details Bis(hydroxyphthalimide) and process for preparing the same, and Bis(hydroxyphthalimide) and process for preparing the same, and

1986-03-14

1988-09-06

Ceperley, Mary E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

528318, C07D20948

Patent

active

047694750

ABSTRACT:
The present invention provides a bis(hydroxyphthalimide) prepared by reacting 4-hydroxyphthalic anhydride and an organic diamine in the presence of an organic solvent under heating. The bis(hydroxyphthalimide) has two intramolecular imide rings and active hydrogens, and is thus polymerizable to form a variety of polycondensation products each having imide rings by condensation. The bis(hydroxyphthalimide) is also reacted with a dicarboxylic acid dihalide to form a polyesterimide, through condensation, which is excellent in transparency and heat resisting property.

REFERENCES:
patent: 3920697 (1975-11-01), Takekoshi et al.
patent: 4535170 (1985-08-01), Sonnenberg
patent: 4550208 (1985-10-01), Disteldorf et al.
B. Mandal et al, J. Polym. Sci., Polym. Lett. Ed., vol. 23, 317-322 (1985). Polyetherimide from Dihydroxybisimide.

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