Polyetherimide bisphenol compositions

Details Polyetherimide bisphenol compositions Polyetherimide bisphenol compositions

1986-07-31

1988-07-12

Ceperley, Mary E.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

528185, C07D20948

Patent

active

047571500

ABSTRACT:
Polyetherimide bisphenols and bischloroformates are prepared by the reaction of dianhydrides or certain bisimides with aminophenols or mixtures thereof with diamines. They are useful as intermediates for the preparation of cyclic heterocarbonates, which may in turn be converted to linear copolycarbonates. The bisphenols can also be converted to salts which react with cyclic polycarbonate oligomers to form block copolyetherimidecarbonates.

REFERENCES:
patent: 3734926 (1973-05-01), Dexter
patent: 3746721 (1973-07-01), Stephen
patent: 4054600 (1977-10-01), Johnson
patent: 4403056 (1983-09-01), Giolito et al.
patent: 4611048 (1986-09-01), Peters

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