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| Number | Title | Issue Date |
| 7294287 | Quinophenanthrine diones fluorescent whitening agents Tetrahydro- and dihydroquinophenanthrine dione fluorescent whitening agents and a process for their preparation are provided. ... | 11/13/2007 |
| 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 |
| 6821649 | Organic EL device and preparation method In an organic EL device comprising a cathode, an anode, and two or more stacked organic layers therebetween including a light emitting layer, an electron injecting organic layer containing an organic salt or complex of a metal having a standard electrode potential o... | 11/23/2004 |
| 6461747 | 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): L.paren open-st.A)m... | 10/08/2002 |
| 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 |
| 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 |
| 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 |
| 5422105 | Use of recombinant colony stimulating factor 1 A colony stimulating factor, CSF-1, is a lymphokine useful in treating or preventing bacterial, vital or fungal infections, neoplasms, leukopenia, wounds, and in overcoming the immunosuppression induced by chemotherapy or resulting from other causes. CSF-... | 06/06/1995 |
| 5308545 | Pyrazoline compounds The invention relates to pyrazoline compounds of formula ##STR1## wherein R1 is hydrogen or methyl, R2 and R3 are each independently of the other methyl, ethyl or hydroxyethyl, R4 is hydrogen or chlorine, R... | 05/03/1994 |
| 5298189 | Proton transfer bis-benzazole fluors and their use in scintillator detectors A novel class of proton transfer, bis-benzazole, fluorescent compounds, i.e., fluors, is disclosed. The novel fluors include substituted or unsubstituted 1,4-bis(2-benzazolyl)-2-hydroxybenzenes and 1,4-bis(2-benzazolyl)-2-amidobenzenes wherein the benzazo... | 03/29/1994 |
| 5219491 | Stable aqueous formulations of pyrazoline fluorescent whitening agents Stable formulations of fluorescent whitening agents (fwas) containing a) a fluorescent whitening agent of the pyrazoline series b) 0.1-10 mol %, relative to the fluorescent whitening agent of one or more reducing sulfur compounds c) if appropriate, auxiliaries and ... | 06/15/1993 |
| 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 |
| 5035825 | Stable bleaching detergents containing stilbene fluorescent whitening agents Detergents which, in addition to inorganic and/or organic peracids, contain specific stilbene compounds as fluorescent whitening agents. These detergents are stable for several months and already show the customary cleaning properties at washing temperatu... | 07/30/1991 |
| 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 |
| 4816590 | Pyrazoline compounds and method of whitening The invention relates to pyrazoline compounds of formula ##STR1## wherein R1 is hydrogen or methyl, R2 and R3 are each independently of the other methyl, ethyl or hydroxyethyl, R4 is hydrogen or chlorine, R... | 03/28/1989 |
| 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 |
| 4526976 | Thieno[3,2-b]benzofuran and benzothiophene derivatives useful as optical brightening agents Compounds of formula I ##STR1## in which X is O or S; Y is O, S or NR3 where R3 is hydrogen or C1-4 alkyl (preferably methyl or ethyl) and rings A and B may be further substituted by non-chromophoric substituents.... | 07/02/1985 |
| 4508784 | 4-Styryl-4'-vinylbiphenyls, the production thereof and use thereof as fluorescent The invention relates to novel 4-styryl-4'-vinylbiphenyls of the formula ##STR1## wherein the benzene rings A, B and C can carry non-chromophoric substituents and R3 is a second order non-chromophoric substituent, and R4 is hydr... | 04/02/1985 |
| 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 obtained from synthesis) aqueous solution or dispersion of a fluo... | 08/21/1984 |
| 4462925 | Stable solutions of optical brighteners A stable aqueous solution comprising (a) 5-25% by weight of an optical brightening agent of formula I ##STR1## in which R1 to R9, X and A.crclbar. are defined in the specification (b) 5-70% by weight of an organic monobas... | 07/31/1984 |
| 4460374 | Stable composition for treating textile substrates The invention relates to a stable composition for treating textile substrates which contains at least (a) an organic solvent which is sparingly soluble to insoluble in water and in which component (b) is dissolved and component (c) is dissolved or dispers... | 07/17/1984 |
| 4433975 | Cationic fluorescent whitening agents Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R1, R2 and R3 is alky... | 02/28/1984 |
| 4432886 | Cationic fluorescent whitening agents Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R1, R2 and R3 is alky... | 02/21/1984 |
| 4429133 | 2'-Benzothiazolyl-and 2'-benzoxazolyl-2-benzimidazoles Disclosed are compounds of Formula I, ##STR1## where either R1, R2, R3 and R4, independently, are hydrogen, C1-4 alkyl, C1-4 alkoxy, halogen, cyano, carboxy, alkoxy(C1-4)car... | 01/31/1984 |
| 4396548 | Pyrazoline derivatives Pyrazoline derivatives of the formula ##STR1## wherein Z represents a radical of the formula ##STR2## or of the formula ##STR3## and R, R1, R2, R3, R4, R8, R9 and R10 | 08/02/1983 |
| 4384121 | Cationic fluorescent whitening agents Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R1, R2 and R3 is alky... | 05/17/1983 |
| 4339393 | Distyrylbiphenyls The distyrylbiphenyls of the formula ##STR1## in which X and X' independently of one another are a direct bond, oxygen, sulfur, --O--C1--3 --alkylene--CON(R4)--, --CON(R4)--,--O--C1--3 --alkylene--COO--, OC... | 07/13/1982 |
| 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 |
| 4324682 | Encapsulated fluorescent composition This invention relates to compositions of matter useful for marking and identification purposes comprising a continuous, pressure rupturable coating containing (1) a fluorescent material and (2) a water-insoluble, volatile, hydrocarbon solvent and a metho... | 04/13/1982 |
| 4313846 | N-Acyl-o-phenylenediamines The invention relates to N-acyl-o-phenylenediamines of the formula ##STR1## wherein A is a colorless carbocyclic or heterocyclic aromatic radical and each of R1 and R2 independently is an alkyl, alkenyl or phenyl radical which i... | 02/02/1982 |
| 4310665 | Novel stilbene compounds and process for the manufacture thereof Compounds of the formula ##STR1## wherein X is O or S, R1 and R2 each are hydrogen, fluorine, chlorine, phenyl, alkyl, alkoxy, dialkylamino, trialkylammonium, acylamino or optionally functionally modified carboxy or sulfo groups... | 01/12/1982 |
| 4283197 | Process for whitening polyester fibres by the exhaust method A process for whitening polyester fibres with a fluorescent whitening agent for polyester and a shading dye by the exhaust method, said process being carried out in a dispersion of the fluorescent whitening agent having a pH value above 9, preferably betw... | 08/11/1981 |
| 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, R1 to R5 are specific substituents and ... | 04/21/1981 |
| 4256900 | Fluorescent azolyl benzocoumarin dyestuffs Compounds of the formula ##STR1## wherein A represents N or C-Cl, and, in the case where A.dbd.N, their quaternization products of the formula ##STR2## in which R represents an alkyl, cycloalkyl or aralkyl radical and X denotes an inorganic or o... | 03/17/1981 |
| 4189589 | Phenyl-benzimidazolyl-furanes 2-Phenyl-5-benzimidazol-2'-yl-furanes of the formula ##STR1## in which R1 is a sulphonic acid group or an ester or amide thereof, a carboxylic acid group or an ester or amide thereof, a cyano group, a trifluoromethyl group or an alkyl- or ... | 02/19/1980 |
| 4183853 | 1-[p-(2-Trialkylammonium)propylsulfonylphenyl]-3-(phenyl)-pyrazoline salts Pyrazoline compounds of the formula ##STR1## wherein R1 and R2 denote hydrogen or chlorine, R3 denotes C1 -C4 -alkyl and X.crclbar. denotes a colorless anion, are suitable for the whitening of p... | 01/15/1980 |
