Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1989-11-02
1991-12-03
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
4301066, 430137, G03G 9097
Patent
active
050699946
ABSTRACT:
The use of intensely fluorinated ammonium compounds of the general formula (I) ##STR1## in which R.sub.1 to R.sub.4 denote hydrogen atoms or organic radicals, at least one of the radicals R.sub.1 to R.sub.4 denoting a straight-chain or branched fluorine-containing alkyl radical or fluorine-containing alkenyl radical which contains 1 to 69 carbon atoms and 3 to 66 fluorine atoms and which may be substituted, and at most three of the radicals R.sub.1 to R.sub.4 are, independently of one another, hydrogen atoms, straight-chain or branched alkyl radicals or alkenyl radicals containing 1 to 30 carbon atoms, aryl radicals or aralkyl radicals, and X.sup.- denotes an organic or inorganic anion, and of intensely fluorinated iminium compounds of the general formula (II) ##STR2## in which R.sub.9 to R.sub.12 denote hydrogen atoms or organic radicals, at least one of the radicals R.sub.9 to R.sub.12 denoting a straight-chain or branched fluorine-containing alkyl radical or fluorine-containing alkenyl radical which contains 1 to 69 carbon atoms and 3 to 66 fluorine atoms and which may be substituted, and at most three of the radicals R.sub.9 to R.sub.12 denote, independently of one another, hydrogen, straight-chain or branched alkyl radicals or alkenyl radicals containing 1 to 30 carbon atoms, aryl or aralkyl radicals and Y.sup.- is an organic or inorganic anion, as colorless charge control agents having positive or negative control effect in toners and developers for electrophotographic recording processes.
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Gitzel Jorg
Macholdt Hans-Tobias
Prossel Gunther
Sieber Alexander
Wehowsky Frank
Goodrow John
Hoechst Aktiengesellschaft
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