Compositions – Electrically conductive or emissive compositions – Elemental carbon containing
Patent
1992-12-22
1995-05-09
Michl, Paul R.
Compositions
Electrically conductive or emissive compositions
Elemental carbon containing
252518, 252520, 252583, 252584, 252586, 523205, 524430, 524431, 359265, 359267, 3151693, H01B 122, C08K 322, G02F 100
Patent
active
054137390
ABSTRACT:
Dispersions of electrically conductive particles useful for preparing electrically conductive, essentially ionically isolative composite layers having electrically conductive particles dispersed in a polymer matrix. Composite layers can be used in laminates for electrochromic displays where an ionically conductive layer is in contact with electrochromic material. Such displays comprise means for applying an electrical potential across the interface of the ionically conductive layer and the electrochromic material to generate an electrochromic effect at the interface. Electrochromic materials can be provided in the laminates as layers between the ionically conductive layer and the composite layer of electrically conductive particles dispersed in a polymer matrix. Alternatively, the electrochromic material can be incorporated in the conductive particles in the polymer matrix, e.g. as titanium dioxide coated with antimony tin oxide coated with polyaniline dispersed in an light transmitting polymer matrix. The materials of this invention allow for the high speed fabrication of flexible displays, e.g. by printing methods.
REFERENCES:
patent: 4550982 (1985-11-01), Hirai
patent: 4810067 (1989-03-01), Demiryont
patent: 5104583 (1992-04-01), Richardson
patent: 5189549 (1993-02-01), Leventis et al.
Nomura et al., Journal of Macromolecular Science-Chemistry, A26(2&3), pp. 593-608 (1989).
Michl Paul R.
Yoon: Tae
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