Use of sulphonic, phosphonic and phosphoric acids as dopants...

Compositions – Electrically conductive or emissive compositions

Reexamination Certificate

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Reexamination Certificate

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07101495

ABSTRACT:
The invention relates to the use of sulphonic, phosphonic and phosphoric acids functionalized with plasticizing groups as dopants for conductive polyaniline films and for conductive polyaniline-based composite materials. These acids correspond to the following formula (I):in which:R1represents —SO2(OH) or —PO(OH)2or —OPO(OH)2;the R2groups, which are identical or different, represent a hydrocarbonaceous group, such as a 2-ethylhexyl, butoxyethyl or isopropylbenzyl group;R3and R4independently represent a direct bond or a hydrocarbonaceous group, such as a methylene group.

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patent: 6042740 (2000-03-01), Uehara et al.
patent: 6235220 (2001-05-01), Pron et al.
patent: 2796397 (2001-01-01), None
patent: 8-100060 (1996-04-01), None
patent: WO 98/05040 (1998-02-01), None
patent: WO 01/04910 (2001-01-01), None
English language translation of JP 08-100060 (pub date Apr. 16, 1996).
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Synthetic Metals, vol. 48 (1992), pp. 91-97, “Counter-ion induced processibility of conducting polyaniline and of conducting polyblends of polyaniline in bulk polymers”, Cao Yong et al.
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Polymer, 1993, Viol. 34, No. 20, pp. 4235-4240, “Processable conducting polymers obtained via protonation fo polyaniline with phosphoric acid esters”, Adam Pron et al.
Synthetic Metals 80 (1996), pp. 191-193, “Thermally processable polyaniline protonated with diphenyl phosphate—preparation and structural aspects”, A. Pron et al.

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