US 5,766,515 A · Conductive coatings

Abstract

Mixtures of A) neutral polythiophenes of formula (I), ##STR1## wherein R.sub.1 and R.sub.2 separately from one another represent hydrogen or a C.sub.1-4 alkyl group or together form an optionally substituted C.sub.1-4 alkylene radical, preferably a methylene radical optionally substituted by alkyl groups, an ethylene-1,2 radical optionally substituted by C.sub.1-12 alkyl or phenyl groups, or a cyclohexylene-1,2 radical, and B) organic compounds containing dihydroxy or polyhydroxy and/or carboxyl groups or amide groups or lactam groups, as well as transparent, electrically conducting coatings made therefrom and electroluminescent systems containing a conductive layer produced from the abovementioned mixtures as the electrode.

Claims11

Dependent claims

A mixture of:

(A) an aqueous solution comprising a water soluble polythiophene which is used in a cationic form with a polyanion, the polythiophene comprising a recurring structural unit of the formula (I) ##STR4## wherein R.sub.1 and R.sub.2 independently of one another represent hydrogen or a C.sub.1 -C.sub.4 alkyl group or together form an optionally substituted C.sub.1 -C.sub.4 radical, or a cyclohexylene-1,2, radical, and
(B) an organic compound of the formula (II) ##STR5## wherein n and m independently of one another denote an integer from 1 to 20, and
R denotes a linear, branched or cyclic alkylene radical having 2 to 20 C atoms or an optionally substituted arylene radical having 6 to 14 C atoms or a pyran or furan radical,
x denotes --OH or --NYZ, wherein Y, Z independently of one another represent hydrogen or alkyl,
or (B) is sugar, sugar derivatives, ethylene glycol, glycerol, di- or triethylene glycol.

2 more elements

Dependencies are inferred from the claim text.

Conductive coatings

Life of this patent

Conductive coatings

Life of this patent

Abstract

Claims11