3,4-Alkylenedioxythiophene compounds and polymers thereof

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From sulfur-containing reactant

Reexamination Certificate

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C528S377000, C528S397000, C528S401000, C549S050000, C524S800000, C524S805000, C524S817000

Reexamination Certificate

active

07022811

ABSTRACT:
A thiophene compound represented by formula (I):wherein A represents a C1-5-alkylene bridge substituted with at least one fluorine atom and/or at least one alkyl group substituted with a fluorine-containing-group; polymers containing monomeric units of a thiophene compound represented by formula (I); a process for preparing polymers containing monomeric units of a thiophene compound represented by formula (I), optionally chemically or electrochemically; and solutions, dispersions, pastes and layers containing such polymers.

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