Polyimide optical materials, polyimide precursor solutions...

Details Polyimide optical materials, polyimide precursor solutions... Polyimide optical materials, polyimide precursor solutions...

2006-08-15

2006-08-15

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

Planar optical waveguide

C385S143000, C385S145000

Reexamination Certificate

active

07092608

ABSTRACT:
Several novel polyimide materials are disclosed. One example is a polyimide material comprising heterocyclic polyimide having an unit represented by the following general formula (1):(wherein Φ1s may be the same or different and are individually a quadrivalent organic group, the Φ1s including at least 0.2 molar equivalent of a quadrivalent hetrocyclic group selected from the following Group (a), Ψ1s may be the same or different and are individually a bivalent organic group, and n is a positive integer).

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