High temperature stable polyetherimides from oxydiphthalic dianh

Details High temperature stable polyetherimides from oxydiphthalic dianh High temperature stable polyetherimides from oxydiphthalic dianh

1988-06-03

1989-08-08

Kight, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C08G 7310

Patent

active

048553913

ABSTRACT:
Polyetherimides are prepared from at least two diamines selected from the group consisting of o-phenylenediamine, m-phenylenediamine and 4-aminophenyl ether and a dicarboxyphenyl ether anhydride, or the esterification product thereof with a low molecular weight alkanol such as methanol. 3,4-Dicarboxyphenyl ether dianhydride is preferred. Said polyimides are tough, flexible and stable at high temperatures.

REFERENCES:
patent: 3312663 (1967-04-01), Sorenson
patent: 3326851 (1967-05-01), Tocker
patent: 3349061 (1967-10-01), Pruckmayr
patent: 3376260 (1968-04-01), Fritz
patent: 3700649 (1972-10-01), Boram et al.
patent: 3745149 (1973-07-01), Serafini et al.
patent: 4720539 (1988-01-01), Rabilloud et al.
Bell, Polymer Letters, 5, 941-946 (1967).

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