Fluorine-containing polyamide acid and polyamide

Details Fluorine-containing polyamide acid and polyamide Fluorine-containing polyamide acid and polyamide

1990-11-05

1993-03-16

Michl, Paul R.

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

Synthetic resins

From carboxylic acid or derivative thereof

C08G 6926

Patent

active

051945797

ABSTRACT:
Polyimides represented by general formula (I), (wherein Ar.sub.1 and Ar.sub.2 each represents an aromatic ring-containing group, Cf represents a fluorinated alkyl group directly bonded to Ar.sub.1, and m.gtoreq.1), and polyamide acids as their percursors. The polyimides have excellent humidity resistance and heat resistance, thus being useful as coating materials for semiconductor chips and insulating films for multi-layered wiring. ##STR1##

REFERENCES:
patent: 3817921 (1974-06-01), Brode
patent: 3959350 (1976-05-01), Rogers
patent: 4173700 (1979-11-01), Green
patent: 4384107 (1983-05-01), Rogers
patent: 4393194 (1983-07-01), Gaudiana
patent: 4477648 (1984-10-01), Jones
patent: 4535101 (1985-08-01), Lee

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