Electroluminescent arrangements

Details Electroluminescent arrangements Electroluminescent arrangements

2011-04-12

2011-04-12

Metzmaier, Daniel S (Department: 1796)

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous liquid or supercritical phase: colloid systems;...

Aqueous continuous liquid phase and discontinuous phase...

C252S500000, C252S301350, C524S547000, C524S548000, C525S186000, C525S206000

Reexamination Certificate

active

07923475

ABSTRACT:
3,4-Polyalkylenedioxythiophene dispersions comprising polyanions and cationic 3,4-polyalkylenedioxythiophenes, in particular those of the formula (I)in whichn is an integer from 3 to 100, preferably from 4 to 15, andX is —(CH2)x—CR1R2—(CH2)y—, whereR1and R2, independently of one another, are H, an optionally substituted alkyl radical having from 1 to 20 carbon atoms, an aryl radical having from 6 to 14 carbon atoms or —CH2—OR3, where R3=H, alkyl or —CH2—CH2—CH2—SO3H, andx and y are each, independently of one another, an integer from 0 to 9,in which at least 90% of the particles are <50 nm, can be employed in electroluminescent arrangements having a long service life and high luminosity.

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