摘要:
The invention relates to a method for producing perylene-3,4-dicarboxylic acid imides, which carry a sterically exacting substituent on the imide nitrogen atom, by reacting a perylene-3,4:9,10-tetracarboxylic acid dianhydride with a sterically hindered primary amine in a reaction medium that is essentially devoid of water. The method is characterised in that the reaction takes place in the presence of a tertiary amine, a cyclic imine- or amide-based solvent and a Lewis acid as the catalyst.
摘要:
Disclosed is the use of cyclic compounds of general formula (1), in which n represents a number between 1 and 7, X-Y-Z independently represent O-C=N, N=C-O, NR5-C=N, N=C-NR5, N+R52-C=N, N=C-N+R52, O-C=N+R5, N+R5=C-O, S-C=N+R5, N+R5=C-S, S-C=N, N=C-S, or metal complexes of the cyclic compounds or complexes of the cyclic compounds comprising mineral acids, X- chloride, sulfate, hydrogen sulfate, phosphate, hydrogen phosphate, nitrate, BF4-, methanesulfonate being supplied as counterions in cationic cycles, as light absorbers, materials for hole-injection layers in OLEDS, light-emitting compounds in OLED, phase transfer catalysts, synergists for dispersing pigments or for optical data storage.
摘要:
The invention relates to compounds suitable as dispersion agent for pigments, of general formulae (I) to (III): R1-X-[-CO-NH-R2-NH-CO-Y-R3-Y-]r-CO-NH-R2-NH-CO-X-R?1 (I); R1¿-X-[-CO-NH-R2-NH-CO-Y-R3-Y-]r-CO-NH-R4 (II); R1-X-[-CO-NH-R2-NH-CO-Y-R3-Y-]r-CO-NH-R2-NH-CO-Z-R5 (III), where R1 = an alkyl-capped oligoalkylenoxide residue of general formula (IV): R6O-(-CH¿2?-CH2-O-)a-(R?7-O-)¿b- (IV), and X, Y and Z each = O or NH, R2 = arylene or arylalkylene group on a diisocyanate, R3= alkylene, arylene or arylalkylene group on a diol or diamine, R4= alkyl, aryl or arylalkyl group on a monoisocyanate, R5= alkyl, aryl or arylalkyl on a monoalcohol or monoamine, R6= alkyl with 1 to 4 C atoms, R7= branched alkylene group with 3 to 8 C atoms, r = a rational number from 0 to 100, a = a whole number from 1 to 300 and b = a whole number from 0 to 30.
摘要:
Rylene derivatives are disclosed having the general formula (I), in which the variables have the meanings indicated in the claims. These compounds are used as pigments and I.R. dyes.
摘要:
The invention relates to the use of polyurethanes having hyperbranched structures, selected from hyperbranched polyurethanes with at least one group that has an affinity to pigments and modified hyperbranched polyurethanes, as polymer dispersants for pigments. The invention is preferably further characterized in that a hyperbranched polyurethane having 2 to 100 NCO groups and a molecular weight of 500 to 50.000 g is reacted with one or more polyether derivatives.
摘要:
The invention relates to a method for carrying out the automated preparation and characterization of liquid multi-constituent systems comprised of at least two, preferably at least three, constituents. The inventive method involves the automated preparation of a mixture by combining at least two, preferably at least three, constituents in a vessel, whereby at least one constituent is dosed into the vessel in an automated manner. The method also involves the automated homogenization of the mixture followed by an automated measuring and evaluation. The device for implementing said method comprises at least one dosing station (5), a closing station (7), a homogenizing station (9), a measuring station (13) for determining formulation properties, and an evaluation unit.
摘要:
The invention relates to a UV absorber comprising a finely dispersed polymer having an average volume particle size ranging from 5 to 1000 nm. The invention also relates to a method for producing this UV absorber and to the use thereof for stabilizing both molding compounds and coating compound films, and as a sunscreen factor in cosmetic formulations.
摘要:
The invention relates to the use of polyurethanes having hyperbranched structures, selected from hyperbranched polyurethanes with at least one group that has an affinity to pigments and modified hyperbranched polyurethanes, as polymer dispersants for pigments. The invention is preferably further characterized in that a hyperbranched polyurethane having 2 to 100 NCO groups and a molecular weight of 500 to 50.000 g is reacted with one or more polyether derivatives.
摘要:
The invention relates to a method for producing halogenated rylen-carboxymides of general formula (I), wherein variables have the following significance: A and B are jointly an imid residue or, when n is equal to 1, A and B are Hal or one is Hal residue and another a hydrogen residue, R and R' represent independently of each other hydrogen, optionally substituted alkyl, cycloalkyl, aryl or hetaryl; Hal represents chlorine, bromine or iodine; n is equal to 1, 2 or 3; x is equal to from 2 to 8. The inventive method consists in reacting a rylen-carboxymide of general formula (II), wherein A' and B' are together an imid residue or, when n is equal to 1, are together a hydrogen with an elementary halogen in the presence of an inert organic solvent L1 characterised in that a halogen hydrocide formed during the reaction is continuously removed from said L1 solvent.
摘要:
The invention relates to a method for the production of terylene-3,4:11,12-tetracarboxydiimides (I) in which the variables have the following meanings: R, R' independently = H, optionally substituted alkyl or cycloalkyl, aryl or heteroaryl, R1 = H or alkyl; R2 = H, alkyl, optionally substituted aryl or heteroaryl, whereby a perylene-3,4-dicarboxyimide (II) is reacted with a naphthalene-1,8-dicarboxyimide (III), where X = H, bromine or chlorine, in the presence of a base-stable, high boiling organic solvent and an alkali or alkaline earth metal base.