Abstract:
Dyestuffs of the formula ##STR1## WHEREIN A denotes a ring which contains at least one quaternary nitrogen atom;B denotes an isocyclic or heterocyclic radical;Y denotes a radical for completing a ring;R denotes hydrogen or alkyl;An .sup.- denotes an anion; andk, m and n denote 1 or 2,Are suitable for dyeing and printing of natural and synthetic materials, particularly of polyacrylonitrile, copolymers of acrylonitrile with other vinyl compounds, of acid modified polyesters and acid modified polyamides. The dyestuffs are also useful in writing fluids, rubber stamp inks, ball point pen inks and in inks for flexographic printing.
Abstract:
Cationic dyestuffs of the formula ##STR1## WHEREIN R represents an alkyl, alkenyl, cycloalkyl, aralkyl, aryl or heteryl radical or an alkylene radical bonded to A or to a ring fusted with A,R.sub.1 represents hydrogen, an alkyl, aralkyl, aryl or heteryl or nitrile,R.sub.2 represents hydrogen, alkyl, aralkyl or aryl,R.sub.3 represents alkyl,R.sub.4 represents hydrogen, alkyl, aralkyl, aryl, heteryl or alkylene or arylene bonded to R.sub.5,R.sub.5 represents a five- or six-membered aromatic ring,A represents the remaining members of a heterocyclic 5-membered or 6-membered ring andAn.sup.- represents an anion,A process for their preparation and their use for dyeing, printing and bulk dyeing of natural and synthetic materials.
Abstract:
A process for the production of aromatic polyamines comprising condensing primary or secondary aromatic amines with formaldehyde or a formaldehyde precursor in the presence of an acid catalyst and liberating the polyamines on completion of condensation by the addition of a basically reacting reagent, wherein a mixture containing amine, catalyst, aldehyde, precondensates formed therefrom, and water, issuing from a mixer at a maximum temperature of about 40.degree.C., is separated intoA. a side stream in which the heat liberated from the reacting mixture is dissipated in a heat exchanger following dilution of the total quantity of mixture of amine and catalyst, cooled to below about 40.degree.C., required for the reaction and the mixture thus obtained is reintroduced at a temperature of at most about 40.degree.C. into the mixer where formaldehyde is added, andB. a main stream which is pumped, through a reaction zone kept at a maximum of about 40.degree.C., into one or more heated residence reactors arranged in series in which the condensation reaction is completed at from about 80.degree.C. to about 200.degree.C.
Abstract:
Dyestuffs of the formula ##STR1## in which D is the radical of an aromatic or heterocyclic diazo component andK is the radical of an aromatic or heterocyclic coupling component, or is the radical of an active methylene compound,are obtained in an ecologically advantageous manner by reacting an aromatic or heterocyclic diazo components of the formulaD--NH.sub.2and a coupling component of the formulaH--Kwith a nitrite, for example NaNO.sub.2, in the presence of CO.sub.2 at a pressure of 5-100 at. The process is suitable in particular for the preparation of concentrated dye-stuff solutions, because expensive operations, such as, for example, pressure permeation and reverse osmosis, can be omitted.
Abstract:
The new carbonylaminostyryls of the formula (I) ##STR1## in which the substituents R.sub.1, A, B and Z have the meaning given in the description, are especially suitable for the production of recording materials which can be used for pressure-sensitive copying, or of thermoreactive or electrochromic recording materials.
Abstract:
Positively charged electrophotographic toners contain, besides customary resin and pigment particles, an additive which increases the cationic charge and has the general formula(X.sup.1).sup.- K.spsp.+.sup.1 -Y.sup.1 -A-Y.sup.2 -K.spsp.+.sup.2 (X.sub.2).sup.- (I)wherein the symbols have the meaning mentioned in the description.
Abstract:
Color-forming agents of the general formula ##STR1## wherein X denotes hydroxyl, alkoxy, alkenyloxy, aralkoxy, cycloalkoxy, aryloxy, acyloxy, alkoxycarbonyloxy, alkylamino, dialkylamino, acylamino, aralkylamino or arylamino,Q denotes cyano, alkoxycarbonyl, aryloxycarbonyl, aralkoxycarbonyl, carbamoyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, N-alkyl-N-aryl-carbamoyl, acyl, alkoxysulphonyl, aralkoxysulphonyl, sulphamoyl, N-alkylsulphamoyl, N,N-dialkylsulphamoyl, alkylsulphonyl, arylsulphonyl or aralkylsulphonyl andR denotes alkyl, alkenyl or aralkyl,further isocyclic or heterocyclic rings can be fused on to the rings A, B, C and D, and the cyclic and acyclic radicals and the rings A, B, C and D can carry further substituents, are used for the preparation of pressure-sensitive recording materials.
Abstract:
Postively charged electrophotographic toners contain, in addition to conventional resin and pigment particles, an additive reinforcing the cationic charge, of the general formula ##STR1## in which R.sup.1 and R.sup.2 each represent hydrogen, chlorine, bromine, hydroxyl, C.sub.1 -C.sub.4 -alkoxy or carboxyl,A represents C.sub.1 -C.sub.5 -alkylene or --C.sub.6 H.sub.4 --CH.sub.2 --(m or p),m represents 0 to 1,n represents 1 or 2K.sup..sym. represents ##STR2## R.sup.3 represents C.sub.1 -C.sub.18 -alkyl, carbamoyl-C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.2 -alkyl, benzyl, cyclohexyl or allyl,R.sup.4 represents C.sub.1 -C.sub.4 -alkyl or a single bond linked to D,R.sup.5 represents C.sub.1 -C.sub.4 -alkyl,D represent --CH.sub.2, --CH.sub.2 --CO--, --CH.sub.2 --CO--NH--or --CH.sub.2 --CO--NH--CH.sub.2 --W represents ##STR3## --CO--or a single bond, Z represents --CH.sub.2 --, ##STR4## --O--, --S--, --SO.sub.2 --or a single bond and An.sup..crclbar. represents an anion.
Abstract translation:除了常规的树脂和颜料颗粒之外,带电荷的电子照相色调剂还包含增强阳离子电荷的添加剂,其通式为:其中R 1和R 2各自表示氢,氯,溴,羟基, C 1 -C 4 - 烷氧基或羧基,A表示C 1 -C 5亚烷基或-C 6 H 4 -CH 2 - (m或p),m表示0至1,n表示1或2 K(+)表示R 3表示C1- C18烷基,氨基甲酰基C1-C2-烷基,C1-C4-烷氧基羰基-C1-C2-烷基,苄基,环己基或烯丙基,R4代表C1-C4-烷基或与D连接的单键,R5代表C1-C4 - 烷基,D表示-CH2,-CH2-CO-,-CH2-CO-NH-或-CH2-CO-NH-CH2-W表示-CO-或单键,Z表示-CH2-, -O - , - S - , - SO 2 - 或单键,An( - )表示阴离子。
Abstract:
Cationic hydrazone dyestuffs of the general formula ##STR1## in which R.sub.1 stands for hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 - to C.sub.4 -alkoxy, nitro or halogen,R.sub.2 stands for hydrogen, C.sub.1 - to C.sub.4 -alkyl, C.sub.1 - to C.sub.4 -alkoxy, halogen or phenylazo,R.sub.3 stands for C.sub.1 - to C.sub.3 -alkyl andA.sup.- stands for an anion,are prepared by quaternarizing azo bases of the general formula ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 have the abovementioned meaning, with dialkyl sulphates of the general formula(R.sub.3 --O).sub.2 SO.sub.2 IIIin whichR.sub.3 has the abovementioned meaning,in the presence of water and alkali metal sulphate or alkaline earth metal sulphate and, where appropriate, by replacing the alkylsulphate anion by another anion.
Abstract:
Cationic enamine dyestuffs of the general formula ##STR1## in which the symbols have the meaning given in the description, are used for dyeing natural and synthetic substrates and compositions which can be dyed with cationic dyestuffs, in particular paper.