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| Number | Title | Issue Date |
| 7265170 | Polycarbonate or polyester carbonate containing optical brighteners A thermoplastic molding composition characterized by its optical brightness and good weathering resistance is disclosed. The composition contains a poly(ester) carbonate an optical brightener conforming to ... | 09/04/2007 |
| 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 m... | 08/21/2007 |
| 7063806 | Fluorescent diketopyrrolopyrroles The present invention relates to fluorescent diketopyrrolopyrroles (“DPPs”) of the formula characterized in that that at least two adjacent substituents R5 to R11 form an aromatic or ali... | 06/20/2006 |
| 7041235 | Fluorescent diketopyrrolopyrrole analogues The present invention relates to fluorescent diketopyrrolopyrrole analogues of the general formula (I), wherein A1 and A2 are C1–C18alkyl, C2–C18alkenyl, C2–C18alkynyl, C | 05/09/2006 |
| 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 concentrated aqueous solutions (S), their production and their use.... | 05/10/2005 |
| 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, Bd1 and Bd2 are independently selected binding groups, Sp is an alip... | 05/25/2004 |
| 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 alcohol, and adapted to produce bubbles that provide illumination when viewe... | 05/18/2004 |
| 6656612 | Heterocyclic compounds, materials for light emitting devices and light emitting devices using the same Disclosed is a material for a light emitting device excellent in color purity, good in light emitting characteristics and excellent in stability, which consists of a compound represented by the following general formula (I): wherein A represents a heteroc... | 12/02/2003 |
| 6649089 | Red organic electroluminescent materials A red fluorescent material comprising a compound of Formula I: ##STR1## wherein R1, R2, R3, R4, R5, and R6 each independently represents a linear or branched aliphatic group having from 1 t... | 11/18/2003 |
| 6608228 | Two-photon or higher-order absorbing optical materials for generation of reactive species Disclosed are highly efficient multiphoton absorbing compounds and methods of their use. The compounds generally include a bridge of pi-conjugated bonds connecting electron donating groups or electron accepting groups. The bridge may be substituted with a... | 08/19/2003 |
| 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, polyester and mixtures thereof and where the particles are of... | 03/18/2003 |
| 6387672 | Photo-induced electron transfer fluorescent sensor molecules Disclosed is a modular fluorescence sensor having the following general formula: ##STR1## where Fl is a fluorophore, N is a nitrogen atom, Bd1 and Bd2 are independently selected binding groups, Sp is an aliphatic spacer, and An ... | 05/14/2002 |
| 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 chromophore in-situ from the pigment precursor, and, subsequently, isolating... | 08/14/2001 |
| 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 compounds comprise a nitrogen, oxygen or sulfur-containing he... | 04/17/2001 |
| 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 of the invention are suitable for polyamide and polyureth... | 09/19/2000 |
| 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 at least one fluorescent whitening agent, which absorbs ra... | 09/12/2000 |
| 5932363 | Electroluminescent devices A luminescent composition containing a mixture of a fluorescent material and a metal chelate compound of the formula Ln --M+n (I) wherein M represents a metal; n is a number of from 1 to 3, and L is a ... | 08/03/1999 |
| 5908581 | Red organic electroluminescent materials A red fluorescent material includes a compound of the formula: ##STR1## wherein: R1, and R2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic systems; and R3, and R4 a... | 06/01/1999 |
| 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) 0 to 10, preferably 0 to 2% by weight of a stabiliser or a mixt... | 12/09/1997 |
| 5650455 | Method for dispersing optical brighteners in waterborne coating compositions This invention provides a method for rendering a water-based coating (i.e., one which contains essentially no organic solvent) fluorescent. Also provided is a method for measuring the extent of coverage and thickness of a water-based coating by incorporat... | 07/22/1997 |
| 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 is disposed in the vicinity of the phenylboronic acid moi... | 04/02/1996 |
| 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 with metal salts in the presence of a base and a layer is for... | 01/23/1996 |
| 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 CO2.... | 12/14/1993 |
| 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 disclosed, as well as a method for preparing these.... | 10/26/1993 |
| 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 already show the customary cleaning properties at washing t... | 07/27/1993 |
| 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 R1 is C1 -C4 -alkyl or phenyl, R2 is cyano, C... | 10/06/1992 |
| 5122304 | Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same Novel aqueous dispersions comprising 7-diethylamino, 4-methyl coumarine or 7-dimethylamino, 4-methyl coumarine in combination with one or more suitable dispersants, humectants and defoamers are disclosed, as well as a method for preparing these.... | 06/16/1992 |
| 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% by weight of 1,4-bis(cyanostyryl)benzene, a process for t... | 12/10/1991 |
| 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 and 3-vinylpropionic acid, their preparation and the use t... | 10/01/1991 |
| 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, further optional assistants and a copolymer of 2-vinylpyr... | 09/24/1991 |
| 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 R1 are identical or different and, if R and R1 are identical, R1 must occ... | 03/19/1991 |
| 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 come in contact with textile fabric.... | 07/10/1990 |
| 4891153 | Mixtures of fluorescent whitening agents Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of a symmetrically or unsymmetrically substituted first 1,4-bis(cyanostyryl)benzene and 49 to 1% by weight of an unsymmetrically substituted second 1,4-bis(cyanostyryl)benzene that... | 01/02/1990 |
| 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 mixtures and compositions containing them for whitening... | 12/26/1989 |
| 4867906 | Mixtures of fluorescent whitening agents Mixtures of fluorescent whitening agents consisting of 51 to 98.5% by weight of 1-(4-cyanostyryl)-4-(3'-styryl)benzene, 48.5 to 1% by weight of 1-(4-cyanostyryl)-4-(2'-cyanostyryl)benzene and 0.5 to 5% by weight of 1,4-bis(cyanostyryl)benzene, a process f... | 09/19/1989 |
| 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 the absorption range of said fluorescent whitening agent,... | 05/16/1989 |
| 4778623 | 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 R1 are identical or different and, if R and R1 are identical, R1 must occ... | 10/18/1988 |
| 4778622 | Mixtures of fluorescent whitening agents Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of a symmetrically or unsymmetrically substituted first 1,4-bis(cyanostyryl)benzene and 49 to 1% by weight of an unsymmetrically substituted second 1,4-bis(cyanostyryl)benzene that... | 10/18/1988 |
| 4751020 | UV-fluorescent cyanoacrylate adhesive The invention relates to an -cyanoacylate adhesive which is fluorescent in ultraviolet light. The adhesive contains a fluorescent compound selected from: (a) Bis-benzoxazolyls having the following formula: ##STR1## in which X is a thiophene r... | 06/14/1988 |
| 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 are applied as a coating to the polyolefin substrate and the... | 05/03/1988 |
