Abstract:
A blue colouring agent with positive regulating properties for electrophotographic recording processes is essentially composed of a compound having the formula (I) and characterized, in the X-ray diffraction pattern, by a strong band at 2delta° (CuKalpha) 18.47, by three medium bands at 2delta (CuKalpha) 18.47, by three medium bands at 2delta (CuKalpha) 5.97, 12.01, 13.90 and by three weak wide bands at 2delta° (CuKalpha) 20.0, 21.7, 22.5, 24.8, 28.2, 30.7, 32.2. The colouring agent is used for producing toners or developers useful for electric photocopying or reproducing documents and for printing electrically, optically or magnetically recorded information or for colour-proofing.
Abstract:
The ever increasing demands on dispersants, emulsifiers and formulation aids, in particular in the preparation of azo dyes and pigments and in the preparation of dye and pigment dispersions, made it necessary to develop novel surface-active compounds. According to the invention, it has been possible by esterification of hydroxynaphthalenecarboxylic acids (on the carboxyl) with fatty alcohols or preferably with alkoxylates of fatty acids, resin acids or alkylphenols, condensation of the resulting esterification products with aldehydes to give novolak resins with subsequent alkoxylation and esterification of terminal OH groups with resin acids, fatty acids, aromatic carboxylic acids and hydroxycarboxylic acids with or without reaction with phthalic anhydride or maleic anhydride and sulfite to develop novel polyfunctional surfactant structures which are very highly suitable for a wide range of applications in dispersion and emulsification, in particular in the preparation and formulation of azo pigments.
Abstract:
The ever increasing demands on dispersants, emulsifiers and formulation aids, in particular in the preparation of azo dyes and pigments and in the preparation of dye and pigment dispersions, made it necessary to develop novel surface-active compounds. According to the invention, it has been possible by esterification of hydroxynaphthalenecarboxylic acids (on the carboxyl) with fatty alcohols or preferably with alkoxylates of fatty acids, resin acids or alkylphenols, condensation of the resulting esterification products with aldehydes to give novolak resins with subsequent alkoxylation and esterification of terminal OH groups with resin acids, fatty acids, aromatic carboxylic acids and hydroxycarboxylic acids with or without reaction with phthalic anhydride or maleic anhydride and sulfite to develop novel polyfunctional surfactant structures which are very highly suitable for a wide range of applications in dispersion and emulsification, in particular in the preparation and formulation of azo pigments.
Abstract:
Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the coupling reaction stage, at the laking stage or in the course of finishing at least one saltlike, cationic compound whose positively charged center is a nitrogen, phosphorus, arsenic or antimony atom or the group and use of such azo pigments for producing toners or developers used for the electrophotographic copying or manifolding of originals or for printing electronically, optically or magnetically stored data or in colorproofing or use of such azo pigments for producing powders or powder coatings used for the surface coating of articles made of metal, wood, plastics, glass, ceramics, concrete, textile material, paper or rubber.
Abstract:
Blue colorant with positive regulating action for electrophotographic recording material is based on 4,4'-dianilino-4''-m-toluidino triphenylcarbonium hemisulphate of formula (I): having an x-ray diffraction diagram with a strong band at 2 delta(CuKalpha) 18.47, 3 medium strong bands at 5.97, 12.01 and 13.90 and weak wide bands at 20.0, 21.7, 22.5, 24.8, 28.2, 30.7 and 32.2. The prepn. of (I) is described in DE 19 19 724.
Abstract:
PCT No. PCT/EP87/00003 Sec. 371 Date Jun. 1, 1989 Sec. 102(e) Date Jun. 1, 1989 PCT Filed Jan. 7, 1987 PCT Pub. No. WO88/04442 PCT Pub. Date Jun. 16, 1988.Blue coloring agent with positive control effect for electrophotographic copying processes, composed essentially of the compound of the formula the X-ray diffraction diagram of which contains a strong band at 2 DEG (CuK alpha )=18.47, three medium-strong bands at 2 DEG (CuK alpha )=5.97, 12.01 and 13.90 and weak broad bands at 2 DEG (CuK alpha )=20.0, 21.7, 22.5, 24.8, 28.2, 30.7 and 32.2, and the use of the coloring agent for the production of toners and developers which are used for the electrophotographic copying or duplication of originals, and also for the printing of electronically, optically or magnetically stored information or in color proofing.
Abstract:
Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the coupling reaction stage, at the laking stage or in the course of finishing at least one saltlike, cationic compound whose positively charged center is a nitrogen, phosphorus, arsenic or antimony atom or the group and use of such azo pigments for producing toners or developers used for the electrophotographic copying or manifolding of originals or for printing electronically, optically or magnetically stored data or in colorproofing or use of such azo pigments for producing powders or powder coatings used for the surface coating of articles made of metal, wood, plastics, glass, ceramics, concrete, textile material, paper or rubber.
Abstract:
Quinacridones having selectively adjusted triboelectric effects, which quinacridones contain about 0.05% to 100 percent by weight of triboelectrically active compounds of the general formula I (I), in which Q is a quinacridone radical which is unsubstituted or substituted by halogen atoms, alkyl, alkoxy, H2N-CO-, alkyl-NH-CO- or (alkyl)2N-CO groups, A is a direct bond or -O-, -S-, -NR1-, -CO-, -SO2-, -CR2R3- or arylene and Y is an -NR4R5 group or a five-, six- or seven-membered heterocycle which contains one to three heteroatoms from the series comprising nitrogen and/or oxygen and/or sulfur and which can be substituted by alkyl, alkoxy, hydroxyphenyl, halogen, -CN, -COOH, -CO-NRR', -SO2-NRR', hydroxyalkyl or alkylaminoalkyl, in which R and R' together with the nitrogen atom can be a heterocycle, R and R' are hydrogen atoms or alkyl and R1 to R5, independently of one another, are each hydrogen and/or alkyl or alkenyl of 1 to 22 carbon atoms and n is a number from 1 to 4, and their use for the preparation of toners or developers which are used for electrophotographic copying or reproduction of originals and for printing electronically, optically or magnetically stored information or are used in color proofing.
Abstract:
Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the coupling reaction stage, at the laking stage or in the course of finishing at least one saltlike, cationic compound whose positively charged center is a nitrogen, phosphorus, arsenic or antimony atom or the group , and use of such azo pigments for producing toners or developers used for the electrophotographic copying or manifolding of originals or for printing electronically, optically or magnetically stored data or in colorproofing or use of such azo pigments for producing powders or powder coatings used for the surface coating of articles made of metal, wood, plastics, glass, ceramics, concrete, textile material, paper or rubber.
Abstract:
Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the coupling reaction stage, at the laking stage or in the course of finishing at least one saltlike, cationic compound whose positively charged center is a nitrogen, phosphorus, arsenic or antimony atom or the group and use of such azo pigments for producing toners or developers used for the electrophotographic copying or manifolding of originals or for printing electronically, optically or magnetically stored data or in colorproofing or use of such azo pigments for producing powders or powder coatings used for the surface coating of articles made of metal, wood, plastics, glass, ceramics, concrete, textile material, paper or rubber.