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| Number | Title | Issue Date |
| 7122248 | Security articles This invention provides security articles comprising fibers, threads and fiber sections (“dots”) possessing multiple verification characteristics. The fibers possess unique and difficulty duplicated combinations of complex cross-sections, components, and multipl... | 10/17/2006 |
| 6866795 | Ultraviolet-absorbing film containing a fluorescent brightening agent An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I): | 03/15/2005 |
| 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 |
| 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 |
| 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 |
| 6045991 | Compositions and methods for generating red chemiluminescence Compounds which generate red chemiluminescence on reaction with a phosphatase enzyme are provided as well as intermediates useful for their preparation. The chemiluminescent compounds comprise a luciferin ring system and an exocyclic enol phosphate group ... | 04/04/2000 |
| 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 |
| 5277839 | Guidepath material A dispersion or solution of a fluorescent dye material which emits radiation for detection by automated guidance vehicles (AGV) including a sulfonated fluorescent dye solution in its acid state. The unique product forms a guidepath on a carpet which requi... | 01/11/1994 |
| 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 |
| 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 |
| 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 |
| 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 |
| 4871480 | Audoradiography enhancer and method of use Disclosed is an improved autoradiography enhancer composition and method of use. The enhancer composition uses an acid anhydride as a dehydration agent.... | 10/03/1989 |
| 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 |
| 4745142 | Stainproof polyester fiber A polyester fiber having a superior stainproof property comprises at least one fiber-forming polyester copolymer comprising a backbone polyester polymer and at least one type of terminal substituent which blocks at least some of the terminals of the molec... | 05/17/1988 |
| 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 |
| 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 by a non-chromophoric substituent, R1 is h... | 05/19/1987 |
| 4609591 | Non-aqueous coating for glass fibers and glass fibers coated therewith A non-aqueous coating for glass fibers consisting of 100 percent solids formulation of organosilane, an ethylene-ethyl acrylate copolymer, a hydrogenated heterocyclic hydrocarbon thermoplastic resin, a microcrystalline wax, a viscosity-reducing agent, an ... | 09/02/1986 |
| 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 oxyalkylation product of the formula ##STR1## in which Q is ... | 08/12/1986 |
| 4416795 | Mixtures of optical brighteners Mixtures of optical brighteners composed of (a) 1 to 99% by weight of one or more compounds of the formula (1) ##STR1## wherein R1, R2, R3, R4, R5 and R6 can be identical or different and d... | 11/22/1983 |
| 4400294 | Mixtures of optical brighteners Mixtures of optical brighteners consisting of (a) 1 to 99 weight % of one or several compounds of the formula 1 ##STR1## (b) 99 to 1 weight % of one or several compounds of the formula 2 ##STR2## wherein n is 0 or 1, X is oxygen or sulfur, B is a gro... | 08/23/1983 |
| 4388079 | Color salt-containing optical brightener composition This invention relates to an optical brightener composition comprising at least one optical brightener and at least one color salt consisting of an optical brightener component having at least one anionic group and a color component having at least one ba... | 06/14/1983 |
| 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 benzoxazolyl-stilbenes and of from 0.95 to 0.05 part by weight of a brighte... | 12/14/1982 |
| 4336155 | Mixtures of optical brighteners Mixtures of optical brighteners consisting of 5 to 95% by weight of a compound of the formula ##STR1## in which A denotes a o- or p-cyanophenyl group, and 95 to 5% by weight of one or more further optical brighteners.... | 06/22/1982 |
| 4330427 | Mixtures of optical brighteners Mixtures of optical brighteners consisting of 5 to 95 parts by weight of a mixture consisting of 0 to 80% by weight of the compound of the formula 1 ##STR1## 20 to 100% by weight of the compound of the formula 2 ##STR2## and 0 to 80% by weight o... | 05/18/1982 |
| 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 1,3,5-oxdiazole (2) group, as well as a procedure fo... | 04/06/1982 |
| 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 one of Z and Zo is hydrogen and the other is... | 10/27/1981 |
| 4289887 | Benzofurane benzoxazoles Compounds of the formula ##STR1## in which R1, R2 and R3 denote hydrogen, alkyl, alkoxy or halogen, A denotes aryl or a radical of the formula ##STR2## wherein R8 denotes aryl, alkyl, aralkyl, styryl o... | 09/15/1981 |
| 4284787 | Process for the preparation of 1,2,3-triazoles substituted in the 2-position Triazoles of the formula ##STR1## in which R1 is hydrogen or a substituent of the type indicated in the description, R2 is a substituent, or R1 and R2, together with the triazole ring carbon atoms to which ... | 08/18/1981 |
| 4261855 | Novel stilbene compounds Stilbene compounds of the formula ##STR1## in which the rings A, B and C can carry non-chromophoric substituents, R1 is hydrogen, alkyl which is unsubstituted or substituted by non-chromophoric substituents, or aryl which is unsubstituted ... | 04/14/1981 |
| 4208513 | Benzoxazolyl-phenylstilbenes, processes for producing them, and their use as optical brighteners Benzoxazolyl-phenyl stilbenes of the formula ##STR1## wherein n is the number 0 or 1, and R is halogen, phenyl, phenoxy or alkyl having 2 to 4 C atoms and, if n is the number 1, also methoxy.... | 06/17/1980 |
| 4206072 | Benzoxazolyl-phenyl-stilbenes Benzoxazolyl-phenyl-stilbenes of the formula ##STR1## in which X is a carboxylic acid group or an ester or amide thereof, a phenyl sulphonate group or a sulphonamide group, a cyano group or alkylsulphonyl and the ring A can be substituted by alkyl ha... | 06/03/1980 |
| 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, R1 and R2, being identical or different, are radicals selected from the group of hydrogen, fluorine or chlorine atoms, phenyl, C1 -C9 -alkyl, C... | 04/08/1980 |
| 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, dialkylamino, morpholino, piperidino, piperazino, pyr... | 01/22/1980 |
| 4180479 | Stilbene compounds Novel stilbene compounds of the formula ##STR1## in which A is the radical ##STR2## in which R1 is hydrogen or chlorine and R2 is hydrogen or alkyl, Z is hydrogen, chlorine or phenyl and R3 is hydrogen, alkyl or ... | 12/25/1979 |
| 4177347 | Distilbenyl-oxdiazoles Distilbenyl-oxadizoles, a process for their preparation, their use for optically brightening organic materials as well as detergents containing them are disclosed.... | 12/04/1979 |
| 4169810 | Mixtures of optical brighteners A mixture of optical brighteners containing 0.05 to 0.95 part by weight of a compound from the benzoxazolyl- or benzothiazolylstilbene series and 0.95 to 0.05 part by weight of a compound of the bis-benzoxazolyl- or bis-benzothiazolylstilbene series or of... | 10/02/1979 |
