Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2006-09-19
2006-09-19
Kopec, Mark (Department: 1751)
Compositions
Electrically conductive or emissive compositions
Reexamination Certificate
active
07108805
ABSTRACT:
A method for preparing a composition containing between 0.08 and 3.0% by weight of a polymer or copolymer of a 3,4-dialkoxythiophene in which said two alkoxy groups may be the same or different or together represent a oxy-alkylene-oxy bridge optionally substituted with substituents selected from the group consisting of alkyl, alkoxy, alkyoxyalkyl, carboxy, alkylsulphonato, alkyloxyalkylsulphonato and carboxy ester groups, a polyanion and at least one polyhydroxy non-aqueous solvent from a dispersion of said polymer or copolymer of (3,4-dialkoxythiophene) and said polyanion in water comprising in the following order the steps of: i) mixing at least one of said non-aqueous solvents with said aqueous dispersion of said polymer or copolymer of (3,4-dialkoxythiophene) and said polyanion; and ii) evaporating water from the mixture prepared in step i) until the content of water therein is reduced by at least 65% by weight; a printing ink, printing paste or coating composition, capable of yielding layers with an enhanced transparency at a given surface resistance, prepared according to the above-described method; a coating process with the coating composition thereby producing a layer with enhanced transparency at a given surface resistance; and a printing process with the printing ink or paste thereby producing a layer with enhanced transparency at a given surface resistance.
REFERENCES:
patent: 4855189 (1989-08-01), Simopoulos et al.
patent: 5443944 (1995-08-01), Krafft et al.
patent: 5494609 (1996-02-01), Kulkarni et al.
patent: 6084040 (2000-07-01), Jonas et al.
patent: 6632472 (2003-10-01), Louwet et al.
patent: 6692662 (2004-02-01), Haghighat et al.
patent: 6692663 (2004-02-01), Zhou et al.
patent: 2002/0173579 (2002-11-01), Jonas et al.
patent: 42 11 459 (1993-10-01), None
patent: 0 440 957 (1991-08-01), None
patent: 0 686 662 (1995-12-01), None
patent: 1 010 733 (2000-06-01), None
patent: 1 081 546 (2001-03-01), None
patent: 1 081 548 (2001-03-01), None
patent: 1 081 549 (2001-03-01), None
patent: 59210947 (1984-11-01), None
patent: WO 99/343371 (1999-07-01), None
patent: WO 00/16595 (2000-03-01), None
patent: WO 02/00759 (2002-01-01), None
patent: WO 02/042352 (2002-05-01), None
patent: WO 02/067273 (2002-08-01), None
patent: WO 02/072660 (2002-09-01), None
patent: WO 02/072714 (2002-09-01), None
Search Report for EP 01 00 0698 (May 8, 2002).
Search Report for EP 01 00 0780 (May 27, 2002).
D.M. Welsh et al.;Polymer Preprint; vol. 38(2); p. 320 (1997).
L. Groenendaal et al.;Advanced Materials; vol. 12; pp. 481-494 (2000).
L.J. Kloeppner et al.;Polymer Preprints; vol. 40(2); p. 792; (1999).
P. Schottland et al.;Synthetic Metals; vol. 101; pp. 7-8 (1999).
Tahon Jean-Pierre
Van den Bogaert Roger
AGFA GEVAERT
Kopec Mark
Leydig Voit & Mayer Ltd
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