Patent ID: 7063736

Claim:
An electrically conductive coating, in particular for toner transfer drums, that is producible by hydrolytic condensation of a mixture comprising at least one hydrolysable silicon compound of general formula: SiX n R (4-n) (I), wherein the radicals X, which are the same or different, and are be selected from alkoxy groups substituted by halogen or alkoxy, hydroxy groups, halogen, aryloxy and acyloxy groups, hydrogen, straight-chained, branched or cyclic alkyl, alkenyl, and alkynyl radicals; and wherein the radicals R, which may be the same or different, are selected from alkyl, alkenyl, alkynyl, aryl, and the above mentioned alkyl radicals include cyclic and aryl-substituted radicals, the alkenyl and alkynyl groups can be cyclic and the aryl groups include alkaryl groups, whereby the abovementioned groups have one or more substitutes inert under reaction conditions and whereby n is a whole number from 1 to 4, whereby the mixture further includes one or more hydrolytically condensable compounds of silicon or other elements selected from B, Al, P, Sn, Pb, transition metals, lanthanides or actinides, whereby at least one monomer compound to be used for condensation is derived from a silicon compound of general formula: Z a SiY b R (4-a-b) (II) wherein the radicals and indices are the same or different wherein: Y=hydrogen, halogen, hydroxy, optionally substituted alkoxy, acyloxy, alkyl carbonyl, alkoxy carbonyl, or NR′ 2 ; Z=quaternary ammonium salts derived from R 2 2 N—(R 3 —NR 2 —) k—R 3 —, or Z=1/m A m⊖ R 2 2 —N ⊕ ——R 3 —, 1/m A m⊖ (HO—R 3 ) 2 N ⊕ —R 3 —, 1/m A m⊖ (R 2 O) 2 P ⊕ (O)—R 3 —, 1/m A m⊖ (R 2 2 —N) 2 C—S ⊕ —R 3 , 3/n K n⊕ (OOC ⊖ ) 2 —N—R 3 —N(COO ⊖ )—R 3 —, 1/m A m⊖ H 2 C═C—(R 2 )—R 3 N ⊕ (R 2 2 ) R 3 —, 1/m A m⊖ H 2 C═C—(R 2 )—CO—O—R 3 N ⊕ (R 2 2 )—R 3 —, R=optionally substituted alkyl, alkenyl, aryl, alkylaryl, or arylalkyl; R′=hydrogen, alkyl, or aryl; R 2 =hydrogen, optionally substituted alkyl, alkenyl, aryl, alkylaryl, or arylalkyl; R 3 =optionally substituted alkylene, alkenylene, or arylene; A m⊖ =anion with a valence of m; K n⊕ =cation with a valence of n; a=1, 2, or 3; b=1, 2, or 3; a+b=2, 3, or 4; and k=0, 1, 2, or 3, characterised in that the mixture to be condensed hydrolytically comprises at least a portion of an ether having an alkenyl group.