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7258815 Use of brighteners for the preparation of coating slips  
The use of optical brighteners of the formula (II): in which Y denotes a radical of the formula and the other substituents have the meaning stated in the description, for brightening...
7041235 Fluorescent diketopyrrolopyrrole analogues  
The present invention relates to fluorescent diketopyrrolopyrrole analogues of the general formula (I), wherein A 1 and A 2 are C 1 –C 18 alkyl, C 2 –C 18 alkenyl, C 2 –C 18 alkynyl, C 5...
6890454 Optical brighteners compositions their production and their use  
The invention relates to an optical brightener mixture (W) comprising optical brighteners (A) of formula (Ia), and (B) of formula (Ib) and optionally (C) of formula (Ic) as defined herein, their...
6740257 Photo-induced electron transfer fluorescent sensor molecules  
Disclosed is a modular fluorescence sensor having the following general formula: Where Fl is a fluorophore, N is a nitrogen atom, B d1 and B d2 are independently selected binding groups, Sp is...
6737393 Liquid bubble solution for producing luminous bubbles  
A liquid bubble solution comprising by volume: 45%˜70% water, 8%˜25% surface active agent, 2% glycerin, 1%˜2% fluorescent brightening agent, 4%˜6% luminous powder and 15%˜20% polyvinyl...
6649089 Red organic electroluminescent materials  
A red fluorescent material comprising a compound of Formula I: wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 each independently represents a linear or branched aliphatic group having from 1 to...
6533961 Durable fluorescent organic pigments and methods of making  
Daylight fluorescent articles are disclosed that utilize durable fluorescent pigment particles resulting from a fluorescent dye incorporated within a matrix polymer selected from polycarbonate,...
6274065 Process for the preparation of fluorescent compositions, fluorescent compositions and their use  
Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest...
6218137 Compounds, compositions and methods for generating chemiluminescene with phosphatase enzymes  
Novel heterocyclic compounds which generate chemiluminescence on reaction with a phosphatase enzyme are provided as well as a process for their preparation and intermediates useful therein. The...
6120704 Mixtures of optical brighteners  
The invention relates to mixtures of optical brighteners comprising nonionic polyester brighteners and anionic or nonionic polyamide brighteners, which develop a synergistic effect. The brighteners...
6117189 Protective method  
The present invention relates to a method for the improvement of the sun protection factor (SPF) of textile fiber material, comprising applying to the textile fiber material a detergent comprising...
5908581 Red organic electroluminescent materials  
A red fluorescent material includes a compound of the formula: ##STR1## wherein: R 1 , and R 2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic...
5695687 Anhydrous fluorescent whitening agent formulation  
The present invention provides an anhydrous fluorescent whitening agent formulation comprising: a) 5 to 60, preferably 15 to 45% by weight of a fluorescent whitening agent or a mixture thereof; b)...
5503770 Fluorescent compound suitable for use in the detection of saccharides  
Disclosed is a fluorescent compound of a molecular structure comprising a fluorophore, at least one phenylboronic acid moiety, and at least one amine-providing nitrogen atom where the nitrogen atom...
5486406 Green-emitting organometallic complexes for use in light emitting devices  
A new class of organometallic complexes for use in electroluminescent (EL) devices and a method of preparation are disclosed. The organometallic complexes are prepared by mixing organic ligands...
5269815 Process for the fluorescent whitening of hydrophobic textile material with disperse fluorescent whitening agents from super-critical carbon dioxide  
A process for the fluorescent whitening of hydrophobic textile materials, especially polyesters, wherein the textile material is treated with disperse fluorescent whitening agents in supercritical...
5256336 Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same  
Novel aqueous dispersion comprising 7-diethylamino, 4-methyl coumarine or 7-dimethylamino, 4-methyl coumarine in combination with one or more suitable dispersants, humectants and defoamers are...
5230820 Storage-stable bleaching detergents containing bis-benzofuranyl fluoescent whitening agents  
Detergents which, in addition to inorganic and/or organic peracids, contain specific bis-benzofuranyl compounds as fluorescent whitening agents. These detergents are stable for several months and...
5152922 1,4-distyrylbenzene compounds and mixtures thereof with other 1,4-distyrybenzene compounds  
Novel 1,4-distyrylbenzene compounds of the formula ##STR1## and mixtures thereof with compounds of the formulae ##STR2## and/or ##STR3## in which R 1 is C 1 -C 4 -alkyl or phenyl, R 2 is cyano,...
5072016 Mixtures of fluorescent whitening agents  
Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of 1-(4-cyanostyryl)-4-(3'-styryl)benzene, 49 to 1% by weight of 1-(4-cyanostyryl)-4-(2'-cyanostyryl)benzene and 0.5 to 5%...
5053055 Whitener dispersion  
There are disclosed aqueous dispersions comprising water-insoluble or sparingly soluble fluorescent whitening agents, dispersants, further optional assistants and a copolymer of 2-vinylpyrrolidone...
5051111 Whitener dispersion  
There are disclosed aqueous dispersions comprising water-insoluble or sparingly soluble fluorescent whitening agents, water-soluble fluorescent whitening agents, dispersants, optional solubilizers,...
5001253 Fluorescent brighteners consisting of bis-styrylbenzene compounds, a process for their preparation and their use  
A fluorescent brightener is proposed which consists of 51-99% of an unsymmetrically substituted compound of the formula ##STR1## in which R and R 1 are identical or different and, if R and R 1 ...
4940555 Storage-stable anionic liquid detergent compositions containing amphoteric distyryl derivative fluorescent whiteners  
Storage-stable anionic liquid detergent compositions containing fluorescent whitening agents of the class of the amphoteric distyryls. These detergent compositions cause no bleach spots when they...
4889655 Mixtures of fluorescent whitening agents  
Mixtures of fuorescent whitening agents comprising 5 to 45 parts by weight of 4,4'-bis(cyanovinyl)stilbene and 95 to 55 parts by weight of a compound of formula ##STR1## and the use of said...
4830763 Process for increasing the degree of whiteness of polyester-containing textile material  
A process for increasing the degree of whitness of polyester-containing textile material by the combined application of a fluorescent whitening agent and, as booster, a compound which fluoresces in...
4751020 UV-fluorescent cyanoacrylate adhesive  
The invention relates to an α-cyanoacylate adhesive which is fluorescent in ultraviolet light. The adhesive contains a fluorescent compound selected from: (a) Bis-benzoxazolyls having the...
4741860 Adhesion promoters containing optical brightener  
A composition comprising a chlorinated polyolefin and an optical brightener is disclosed. The compositions are useful as detectable adhesion promoters for polyolefin substrates. The compositions...
4666627 4-Heterocyclylvinyl-4-'styryl-biphenyls  
Novel 4-heterocyclylvinyl-4'-styryl-biphenyls of the formula ##STR1## are described, i which A is an isoxazolyl, oxadiazolyl, pyrimidinyl or triazinyl radical which is unsubstituted or substituted...
4605511 Stable stilbene fluorescent brightener solution  
Stilbene fluorescent brightener solutions which are stable to metal ions and metal catalysts and contain a stilbene fluorescent brightener substituted by sulfo groups and a fatty amine...
4544496 Light-collecting system using coumarin derivatives as energy converters  
A light-collecting system, characterized in that it contains a coumarin derivative of the formula ##STR1## in which T denotes O or NR 4 , in which R 4 represents hydrogen, optionally...
4466900 Process for the preparation of fluorescent brightener formulations which are stable on storage  
A process is described for the preparation of concentrated liquid formulations, stable on storage, of anionic fluorescent brighteners, which process consists in passing a crude (for example...
4460485 Polyester fabric conditioning and whitening composition  
A fabric conditioning and brightening composition especially effective toward polyester textiles is disclosed comprising a cationic fabric softening compound, a cotton- or nylon-substantive...
4364845 Concentrated aqueous solutions of sulfo group-containing fluorescent brighteners which are stable on storage  
Concentrated aqueous solutions of sulfo group-containing fluorescent brighteners, which are stable on storage, containing a stilbene fluorescent brightener substituted by sulfo groups and a lactam...
4363744 Mixtures of optical brighteners and their use for the optical brightening  
Mixtures of optical brighteners consisting of from (a) 0.98 to 0.50 part by weight of a mixture consisting of from 0.05 to 0.95 part by weight of a brightener of the series of the...
4346016 6-Styrylquinoxalines, and their use as fluorescent brighteners  
6-Styrylquinoxalines of the formula ##STR1## in which R and R 1 independently of one another are hydrogen, alkyl, aryl or aryloxy which is unsubstituted or substituted by non-chromophoric...
4323675 Novel stilbene compounds: process for their manufacture and their use as optical brighteners  
Triazolyl stilbene compounds of the formula ##STR1## wherein A is a benzene or naphthalene ring optionally substituted by non-chromophoric substituents and B is a substituted 1,2,4-oxdiazole (3) or...
4317782 Distyryl compounds  
Distyryl compounds of the formula ##STR1## wherein A denotes 1,4-phenylene, 4,4'-biphenylylene, 4,4"-terphenylylene, 1,4-, 1,5- or 2,6-naphthylene, 9,10-dihydro-2,7-phenanthrenylene or...
4316815 Bis-triazolyl and bis-pyrazolyl stilbene compounds  
The invention relates to stilbene derivatives which are used as optical brightening agents, particularly as anionic brightening agents for polyamide and cellulosic substrates. These stilbene...
4297234 Benzoxazolyl-stilbenes  
Benzoxazolyl-stilbenes of the formula ##STR1## in which R is a 6-membered heterocyclic radical which has 2 nitrogen atoms in the o-position, m-position or p-position relative to one another, and...
4284787 Process for the preparation of 1,2,3-triazoles substituted in the 2-position  
Triazoles of the formula ##STR1## in which R 1 is hydrogen or a substituent of the type indicated in the description, R 2 is a substituent, or R 1 and R 2 , together with the triazole ring...
4276188 Process for manufacturing 2-stilbenyl-1,2,3-triazoles and new 2-stilbenyl-1,2,3-triazoles  
A new process for manufacturing 2-stilbenyl-1,2,3-triazoles as well as new 2-stilbenyl-1,2,3-triazoles and their use for the optically brightening of organic material are disclosed.
4263431 Cationic fluorescent whitening agents  
The invention relates to cationic fluorescent whitening agents of the formula ##STR1## wherein A is the radical of a fluorescent whitening agent, Q is the direct bond or a bridge member, R 1 to R...
4235741 v-Triazoles  
Novel 2,4-Bis-(stilben-4'-yl)-v-triazoles of the formula ##STR1## wherein the rings A, B, C, D and E can contain certain nonchromophoric substituents, methods for their preparation as well as their...
4233440 Triazolyl-stilbenes  
The subject matter are triazolyl-stilbenes of the formula ##STR1## wherein R 1 represents an optionally substituted styryl, biphenylyl or naphthyl radical, R 2 represents hydrogen, halogen, or an...
4217301 Cyano-substituted stilbene compounds  
A new process for the manufacture of cyano-substituted stilbene compounds, new stilbene compounds as well as their use as fluorescent brighteners or as intermediates for the manufacture of...
4197401 Stilbenes, process for the manufacture thereof and the use thereof as optical brighteners  
Compounds of the formula I ##STR1## in which X is O or S, R 1 and R 2 , being identical or different, are radicals selected from the group of hydrogen, fluorine or chlorine atoms, phenyl, C 1 -C...
RE30227 Agent for brightening and removing greyness from textiles  
Agent for the preparation of the baths for brightening the color of and removing the greyness from white and pastel colored textiles which are made from synthetic fibers or which are provided with...
4184977 Fluorescent dyestuffs  
Fluorescent dyestuffs of the formula ##STR1## wherein X and Y denote hydrogen, halogen, alkyl, aralkyl, alkenyl, hydroxyl, amino, alkoxy, aralkoxy, cycloalkoxy, aryloxy, alkylmercapto, alkylamino,...
4180479 Stilbene compounds  
Novel stilbene compounds of the formula ##STR1## in which A is the radical ##STR2## in which R 1 is hydrogen or chlorine and R 2 is hydrogen or alkyl, Z is hydrogen, chlorine or phenyl and R 3 ...
Matches 1 - 50 out of 175 1 2 3 4 >