Viscosity stable, essentially gel-free polyamic acid composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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Details

528351, C08G 6926, C08G 6928

Patent

active

051150905

ABSTRACT:
Viscosity stable, essentially gel-free linear polyamic acids are provided by a process utilizing offset stoichiometry. Polyimides formed from such polyamic acids have low TCE and low dielectric constants.
Methods for improved adhesion of polyimides are also disclosed.

REFERENCES:
patent: 4959437 (1990-09-01), Kunimune

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