Electro-luminescent polymers, their preparation and uses

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

Reexamination Certificate

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C528S086000, C428S690000, C428S917000

Reexamination Certificate

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06887973

ABSTRACT:
An organic polymer comprising a conjugated backbone for transporting negative charge carriers and having a first band gap and at least one side unit pendent from the backbone for transporting positive charge carriers and having a second band gap, wherein the structure of the organic polymer is selected so that the first and second band gaps are distinct from one another in the polymer.

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Meng, Hong; Yu, Wang-Lin and Huang, Wei; “Facile Synthetic Route to a Novel Electroluminescent Polymer-Poly(p-phenylenevinylene) Containing a Fully Conjugated Aromatic Oxadiazole side Chain”, Macromolecules, vol. 32, No. 26, 1999; pp 8841-8847.
Mielke et al; “Fluorenylidene-linked triarylamines as new hole-transporting materials for organic light-emitting diodes (OLEDS)”, Polyn. Prepr. (Am. Chem. Soc., Div. Polym. Chem.), 2000, 41(1), 877-878 (CAS Abstract).
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United Kingdom Patent Office Search Report—GB 0004544.3; Oct. 25, 2000.

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