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:
Compounds of the general formula ##STR1## wherein R represents hydrogen or alkyl andA represents a radical of the formula ##STR2## wherein the rings D can carry up to 4 alkyl radicals,R.sup.1 and R.sup.2 independently of one another represent alkyl, alkenyl, cycloalkyl, aryl or aralkyl andR.sup.3 represents hydrogen, alkyl or aryl,and the said cyclic and acyclic radicals and the rings B and C may carry nonionic substituents, are used as color-forming agents.
Abstract:
Dry toners for developing latent electrostatic images in electrostatic recording and printing methods contain, as charge-control substance, a pigment of the formulaF.sup.+ A.sup.- (I)in whichF represent a cationic radical of a methine dyestuff andA.sup.- represents an anion of a heteropolyacid based on tungsten and/or molybdenum with phosphorus, silicon, vanadium, cobalt, aluminum, manganese, chromium and/or nickel or a copper(I) hexacyanoferrate anion.
Abstract:
Dyestuffs of the formula ##STR1## IN WHICH R denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy, aralkoxy, aryloxy, alkylamino, aralkylamino, arylamino, acylamino, carboxylic acid ester, carbonamido, acyl, halogen or nitrile, R.sub.1 denotes hydrogen, alkyl or aralkyl, R.sub.2 denotes hydrogen, alkyl, alkenyl, carbonamide or nitrile, R.sub.3 denotes alkyl, alkenyl or aralkyl, R.sub.4 denotes hydrogen, alkyl, alkenyl, aralkyl, alkoxy or aralkoxy, alkylamino, aralkylamino, acylamino, carbonamido, nitrile, nitro or halogen, R.sub.5 and R.sub.6 denote hydrogen, alkyl, aralkyl or a cycloaliphatic 5-membered or 6-membered ring, or R.sub.6 together with R.sub.1 forms a hydroaromatic 6-membered ring and An.sup.(-) represents an anion, and Processes for their preparation and their use for dyeing and printing natural and synthetic materials.
Abstract:
A dry toner for developing latent electrostatic images in electrostatic recording and printing methods contains, as charge-control substance, a pigment of the formula ##STR1## in which A.sup.- represents an anion of a heteropolyacid based on tungsten and/or molybdenum with phosphorus, vanadium, cobalt, aluminium, manganese, chromium and/or nickel or a copper(I) hexacyanoferrate anion,R.sup.1 and R.sup.3, independently of one another, represent hydrogen, alkyl or aralkyl,R.sup.2 and R.sup.4 independently of one another, represent hydrogen, alkyl, aralkyl or aryl, orR.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently of one another, through linking to the o-position of the benzene ring, represent members of a five- or six-membered ring, orR.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 together represent members of a five- or six-membered ring,B represents oxygen or N-R,R represents hydrogen, alkyl or aryl andD represents CH or C-CN,in which the two benzene rings may be fused to a further benzene ring and then hydrogen can also replace NR.sup.3 R.sup.4 and D can also denote N, and in which the cyclic and acyclic radicals and the benzene rings may be substituted by nonionic radicals which are conventional in dyestuffs chemistry.
Abstract:
A dry toner for developing latent electrostatic images in electrostatic copying and printing processes contains, as charge-control substance, a pigment of the formula ##STR1## in which A.sup.- represents a silicomolybdate anion,R.sup.1 and R.sup.3 represent, independently of each other, hydrogen, alkyl or aralkyl,R.sup.2 and R.sup.4 represent, independently of each other, hydrogen, alkyl, aralkyl or aryl, orR.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent, independently of each other, members of a five- or six-membered ring produced by linkage with the o-position of the benzene ring orR.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 jointly represent members of a five- or six-membered ring,B represents oxygen, sulphur or N--R,R represents hydrogen, alkyl or aryl andD represents CH, C--CN or N,in which the two benzene rings may be fused with a further benzene ring and then NR.sup.3 R.sup.4 may also be replaced by hydrogen, and in which the cyclic and acyclic radicals and the benzene rings may be substituted by nonionic radicals usual in dyestuff chemistry.
Abstract:
A pressure-sensitive and heat-sensitive recording material contains color-forming agents of the formula ##STR1## wherein R.sub.1 denotes hydrogen or a non-ionic radical which is free from amino groups,R.sub.2 denotes hydroxyl, alkylamino, dialkylamino, acylamino, aralkylamino, arylamino, a saturated heterocyclic radical, alkoxy, alkenyloxy, aralkoxy, cycloalkoxy, aryloxy, acyloxy or a direct bond to R.sub.4,R.sub.3 denotes hydroxyl, alkoxy, aralkoxy, alkenyloxy, cycloalkoxy, aryloxy, alkylthio, arylthio or a radical of the formula ##STR2## wherein R.sub.5 and R.sub.6 independently of one another denote hydrogen, alkyl, aralkyl, cyloalkyl or aryl or, together with the nitrogen atom, form a ring, or R.sub.5 forms a ring with the ring B in the o-position relative to the nitrogen atom, andR.sub.4 denotes an aryl radical which is free from amino groups or a heterocyclic radical.
Abstract translation:压敏和热敏记录材料包含下式的成色剂:其中R1表示氢或不含氨基的非离子基,R2表示羟基,烷基氨基,二烷基氨基,酰氨基,芳烷基氨基, 芳基氨基,饱和杂环基,烷氧基,烯氧基,芳烷氧基,环烷氧基,芳氧基,酰氧基或与R4的直接键,R3表示羟基,烷氧基,芳烷氧基,烯氧基,环烷氧基,芳氧基,烷硫基,芳硫基或式 其中R 5和R 6彼此独立地表示氢,烷基,芳烷基,环烷基或芳基,或者与氮原子一起形成环,或者R5与相对于氮原子的o位置的环B形成环 R 4表示不含氨基或杂环基的芳基。
Abstract:
Color formers of the general formula ##STR1## in which --independently of one another-- R.sup.1 and R.sup.2 are hydrogen, halogen, alkyl, aralkyl etc.,Y.sup.1 and Y.sup.2 are alkyl, aryl, cycloalkyl or aralkyl,X.sup.1 is alkyl, alkenyl, cycloalkyl, aralkyl etc.,X.sup.2 is H, alkyl, alkenyl, cycloalkyl etc.X.sup.1 with X.sup.2 with the inclusion of the nitrogen atom carrying them can form a saturated or unsaturated 5- or 6-membered heterocyclic ring, andfurther isocyclic or heterocyclic rings can be fused with the rings A, B and C, upon incorporation in recording materials based on acid developers, show a particularly advantageous migration behaviour. Deep blue, green-blue, green, violet or red shades which have excellent sublimation and light fastness are obtained.
Abstract:
Dyestuff laser consisting of a reservoir, with a laser dyestuff solution contained therein, and a pumped light source associated therewith, which is capable of exciting the dyestuff solution to produce an emission, characterized in that the dyestuff solution contains, in a solvent which does not interfere with the emission, a dyestuff which, in the form of the free acid, corresponds to the general formula ##STR1## wherein R.sub.1 to R.sub.4 independently of one another represent hydrogen, alkyl, trifluormethyl, alkoxy, aralkoxy, alkenyloxy, halogen or the carboxyl, cyano, alkylsulphone, aryl-sulphone, carboxamide, sulphonamide or carboxylic acid ester group,R.sub.1 and R.sub.4 can additionally denote a fused-on benzene ring,n represents a number 2 to 6 ando, p, q and r independently of one another represent 0, 1 or 2,in a concentration, preferably of 10.sup.-2 to 10.sup.-5 mol/1, which emits laser radiation.
Abstract:
Coumarin compounds of the formula ##STR1## in which the substituents have the meanings given inthe description,are valuable whiteners for natural fibre materials, such as wool, or synthetic polycondensates. They can also be used as scintillators and laser dyestuffs.