C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 75/20 (2006.01) C08G 73/06 (2006.01) C08G 75/22 (2006.01) C09D 5/03 (2006.01) C09D 5/46 (2006.01) D06P 1/642 (2006.01) G03G 9/087 (2006.01) G03G 9/097 (2006.01) G03G 9/113 (2006.01)
Patent
CA 2114505
Abstract Cyclic polysulfonyldiallylammonium salts Cyclic polysulfonyldiallylammonium salts which are obtainable by a) copolymerization of salts, preferably halides, of monomeric diallylammonium components of the formula (I) Image ( I ) with sulfur dioxide or a compound which liberates sulfur dioxide, and b) anion exchange, the anions, preferably the halide ions, of the diallylammonium components being completely or partially replaced by the anions A, the diallylammonium components being in each case cyclized to give a five- or six-membered ring and being connected to one another by one or more divalent radicals -SO2- to form polymers, the polysulfonyldiallylammonium salts having a molecular weight of between 500 and 5,000,000, and the ratio of the number of diallylammonium components to the number of divalent SO2 radicals being from 1:0.01 to 1:100, and A is in each case the stoichiometric anion equivalent of an inorganic anion; of an anion of a heteropoly- acid or of a borate of the formula (II) or of an organic anion, or a disulfopyrrolidinium betaine of the formula (III) or A is a combination of the abovementioned anions; are employed individually or in combination as charge control agents in electrophotographic toners and developers which are employed for copying and reproducing originals and for printing electronically, magnetically or optically stored information or in colorproofing, and as charge control agents in powders and powder coatings.
Baur Rudiger
Macholdt Hans-Tobias
Theiss Wilfried
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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