Fluorine-containing polyimides and precursors thereof

Details Fluorine-containing polyimides and precursors thereof Fluorine-containing polyimides and precursors thereof

1991-04-03

1993-12-14

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528126, 528128, 528170, 528171, 528172, 528173, 528174, 528185, 528188, 528220, 528229, 528350, C08G 6926, C08G 7310, C08G 802

Patent

active

052704386

ABSTRACT:
A fluorine-containing polyimide having a low dielectric constant, low water absorption and excellent heat resistance and moisture resistance and a precursor thereof such as a fluorine-containing polyamide-acid, can be prepared by reacting an acid anhydride with an aromatic diamine having perfluoroalkyl group.

REFERENCES:
patent: 4111906 (1978-09-01), Jones et al.
patent: 4965339 (1990-10-01), Maruyama
Journal of Polymer Science: Part A: Polymer Chemistry, vol. 28, 1990, pp. 323-331 T. Ichino et al. "Synthesis and Properties of New Polyimides Containing Fluorinated Alkoxy Side Chains".

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