Fluorescent Dye, E.g., Stilbene, Benzimidazole, Benzoxazole, Benzothiazole, Pyrazoline Dye, Etc., Optical Brightner Or Bluing Agent Patents (Class 8/648)
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Patent number: 5437689Abstract: A process is disclosed for treating polyamide fiber containing materials which process comprises applying a benzofuran-2-one compound to the material in order to enhance its moulding stability. In addition, compositions containing a fluorescent whitening agent and a benzofuran-2-one, and optionally one or more dyes, are disclosed.Type: GrantFiled: March 7, 1994Date of Patent: August 1, 1995Assignee: Ciba-Geigy CorporationInventors: Manfred Rembold, Claude Eckhardt, Peter Nesvadba
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Patent number: 5387264Abstract: The invention discloses a method for dyeing a hydrophobic fiber, in particular, a polyester fiber in an extremely brilliant yellow or orange with fluorescence, a method for coloring, for example, a polystyrene resin or a polyacrylate resin in a brilliant yellow or orange, and a coloring material therefore.A method for dyeing a hydrophobic fiber and a method for coloring an organic macromolecular substance characterized by using a coumarin compound represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 independently represent each a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;and a coloring material containing the coumarin compound are disclosed.Type: GrantFiled: March 31, 1994Date of Patent: February 7, 1995Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yasuo Murakami, Ryuzo Orita, Tadaaki Sugimoto, Masao Ohnishi
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Patent number: 5360559Abstract: Stable dispersions of benzotriazole U.V. absorbing agents utilizing modified ligninsulfonates as the dispersing agent. The modified ligninsulfonates are formaldehyde condensates of ligninsulfonate. The disclosed dispersions have improved stability at elevated temperatures and improved application characteristics.Type: GrantFiled: December 16, 1993Date of Patent: November 1, 1994Assignee: Ciba-Geigy CorporationInventor: Thomas W. Cooke
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Patent number: 5356438Abstract: A hair color rinse composition that simultaneously dyes and conditions hair which comprises a tinctorial amount of one or more acidic dyes, from about 0.01 to 0.5 parts by weight based on the total weight of the composition of one or more halogenated fluorescein dyes and from about 1.0 to 20.0 parts by weight based on the total weight of the composition of a disodium dimethicone copolyol sulfosuccinate is disclosed.Type: GrantFiled: January 7, 1993Date of Patent: October 18, 1994Assignee: Pacific CorporationInventors: Chang K. Kim, Jin K. Cha, Eung S. Kang
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Patent number: 5322525Abstract: A process is disclosed for treating polyamide fiber containing materials which process comprises applying a benzofuran-2-one compound to the material in order to enhance its moulding stability. In addition, compositions containing a fluorescent whitening agent and a benzofuran-2-one, and optionally one or more dyes, are disclosed.Type: GrantFiled: October 30, 1992Date of Patent: June 21, 1994Assignee: Ciba-Geigy CorporationInventors: Manfred Rembold, Claude Eckhardt, Peter Nesvadba
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Patent number: 5298033Abstract: An ultraviolet radiation absorbing agent for bonding to an ocular lens. The agent has the formulaA--NH--Bwherein A is an ultraviolet absorbing compound and B is a specific reactive group or a moiety containing reactive group.Type: GrantFiled: January 12, 1993Date of Patent: March 29, 1994Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 5279772Abstract: The present patent application describes novel liquid detergent compositions containing specifically disulfonated dibenzofuranylbiphenyls of the formula ##STR1## in which X is a sulfonic acid radical, hydrogen or C.sub.1 -C.sub.4 alkyl and Y and Z independently of the other are a sulfonic acid radical, hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogeno, CN, phenoxy or benzyloxy, with the proviso that either X or Y or Z is a sulfonic acid radical and the remaining substituents are not a sulfonic acid radical, and the preparation and use thereof; these detergent compositions prevent spotting on textile fabric when it comes into direct contact with the liquid detergent composition.Type: GrantFiled: February 1, 1993Date of Patent: January 18, 1994Assignee: Ciba-Geigy CorporationInventors: Claude Eckhardt, Kurt Weber
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Patent number: 5272259Abstract: Dyestuffs which in the form of the free acid conform to the formula ##STR1## in which X and Y independently represent --N.dbd.N--R, --CF.sub.3, --CONH.sub.2, --CONHR.sup.1, --CONR.sup.1 R.sup.2, --COOH, --COOR.sup.1, --CN, --NO.sub.2, --NH.sub.2, --NHR.sup.1, --NR.sup.1 R.sup.2, --OH, --OR.sup.1, --R.sup.1 CONH--, --O--CO--R.sup.1, halogen or a substituted or unsubstituted heterocyclic radical, provided that at least one of the radicals X or Y represents --N.dbd.N--R, in whichR represents an aryl or heterocyclic radical, andR.sup.1 and R.sup.2 independently represent alkyl, cycloalkyl, aryl or aralkyl, which are uninterrupted or interrupted by O, S or both O and S,and in which furthermore the radicals mentioned for R, R.sup.1 and R.sup.Type: GrantFiled: May 26, 1992Date of Patent: December 21, 1993Assignee: Bayer AktiengesellschaftInventors: Uwe Claussen, Friedrich W. Krock
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Patent number: 5269815Abstract: 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 CO.sub.2.Type: GrantFiled: November 13, 1992Date of Patent: December 14, 1993Assignee: Ciba-Geigy CorporationInventors: Wolfgang Schlenker, Dieter Werthemann, Claude Eckhardt
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Patent number: 5266271Abstract: The optical fiber microsensor includes an optical fiber having a portion of the surface of a light conducting core covered with a layer containing an analyte sensitive dye material. The dye indicator material is covalently bonded to a copolymer which is covalently bonded to a blocked polyether polyisocyanate. The resulting polymer is covalently bonded to the optical fiber core to prevent leaching of the indicator dye material during extended use.Type: GrantFiled: May 22, 1992Date of Patent: November 30, 1993Assignee: Puritan-Bennett CorporationInventors: Charles S. Bankert, Henry K. Hui, Alan M. Nelson
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Patent number: 5266078Abstract: A method of enhancing the whiteness of a cellulosic material is described which comprises incorporating therein, or applying thereto, a fluorescent whitening agent, a water soluble phosphonate having 1 to 5 phosphonate groups and/or a water soluble carboxylate having 2 to 5 carboxylate groups at a neutral or alkaline pH.Type: GrantFiled: February 19, 1992Date of Patent: November 30, 1993Assignee: W. R. Grace & Co.-Conn.Inventors: Ulrich Welkener, Thord Hassler, Gunilla Hakansson
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Patent number: 5250079Abstract: A process for the treatment of fibrous material from aqueous medium in the presence of an application assistant (P) comprising components (a) and (b), in particular for nitrogen-containing substrates; the compositions (P), (P.sub.1) and (P.sub.2) and compositions comprising (P) and anionic dye or optical brightener.Type: GrantFiled: August 7, 1992Date of Patent: October 5, 1993Assignee: Sandoz Ltd.Inventor: Hans-Peter Baumann
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Patent number: 5203876Abstract: The dyes of formula ##STR1## wherein R, M and n are as defined in claim 1, are preeminently suitable for dyeing paper in blue shades.Type: GrantFiled: February 22, 1991Date of Patent: April 20, 1993Assignee: Ciba-Geigy CorporationInventor: Adolf Kaser
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Patent number: 5201921Abstract: Process for rendering a plastic identifiable by adding 5 to 10,000 ppb of a fluorescent marker to the plastic during or after is manufacture.Type: GrantFiled: September 6, 1991Date of Patent: April 13, 1993Assignee: Bayer AktiengesellschaftInventors: Klaus Luttermann, Uwe Claussen, Aziz El Sayed, Reinhard Riess
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Patent number: 5167871Abstract: There are described novel storage-stable liquid detergent compositions which comprise0.001% to 0.2% of at least one water-insoluble or sparingly soluble fluorescent whitening agent,0.001% to 0.2% of at least one polymer and/or copolymer, and0.2% to 5% of at least one highly disperse silicic acid,and to the preparation thereof with the aid of an aqueous dispersion which contains the fluorescent whitening agent and the polymer components, and to the use thereof. When using these liquid detergent compositions for cleaning fabric, no bleach spots are formed.Type: GrantFiled: May 20, 1991Date of Patent: December 1, 1992Assignee: Ciba-Geigy CorporationInventors: Martin Jollenbeck, Claude Eckhardt
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Patent number: 5164100Abstract: The present invention pertains to fabric softener compositions comprising a surfactant, a fatty acid and a polymeric whitening agent which contains both a fluorescent portion and a hydrophilic portion. Applicants have shown that the polymers can be used in (1) softener compositions wherein biodegradable cationic surfactants are used; and (2) in concentrated softener compositions (i.e., compositions containing 40-80% fabric softener). In concentrated compositions, desirably the use of FFA is minimized or eliminated.Type: GrantFiled: September 27, 1991Date of Patent: November 17, 1992Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Matthew E. Langer, Ferial Khorshahi, John F. Hessel, Simon R. Ellis
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Patent number: 5152921Abstract: Liquid detergents containing, as the fluorescent whitener, 2,2'-dichloro-5,5'-disulfodistyrylbiphenyl, process for the preparation and use of the liquid detergent for washing and pre-treating textile fabrics; these are liquid detergents which are stable on storage, do not sediment, are stable to bleaching systems and do not form spots in the course of pre-treatment.Type: GrantFiled: November 2, 1990Date of Patent: October 6, 1992Assignee: Ciba-Geigy CorporationInventors: Kurt Weber, Claude Eckhardt
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Patent number: 5136005Abstract: The present invention includes solid polymeric-host laser rods prepared using bulk polymerization of acrylic acid ester comonomers which, when admixed with dye(s) capable of supporting laser oscillation and polymerized with a free radical initiator under mild thermal conditions, produce a solid product having the preferred properties for efficient lasing. Unsaturated polymerizable laser dyes can also be employed as one of the comonomers. Additionally, a method is disclosed which alleviates induced optical stress without having to anneal the polymers at elevated temperatures (>85.degree. C.).Type: GrantFiled: October 13, 1989Date of Patent: August 4, 1992Assignee: The United States of America as represented by the United States Department of EnergyInventor: Robert E. Hermes
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Patent number: 5132432Abstract: The invention relates to novel fluorescent dyes based on the following pyrenyloxy sulfonic acid structure: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 is --OCH.sub.2 C(O)OCH.sub.3, --OCH.sub.2 CON(O)H, --OCH.sub.2 CON.sub.3, --OCH.sub.2 CONHNH.sub.2, ##STR2## or --CH.sub.2 CONH(CH.sub.2).sub.n NH.sub.2 where n is an integer from 1 to 10; at least one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 is sulfonic acid or alkali salts of sulfonic acid; and all other of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen or a hydroxyl group. The new reagents contain functional groups typically found in biomolecules or polymers. The spectral properties of the fluorescent dyes are sufficiently different in wavelengths and intensity from fluorescein as to permit simultaneous use of both dyes with minimum interference.Type: GrantFiled: September 22, 1989Date of Patent: July 21, 1992Assignee: Molecular Probes, Inc.Inventors: Richard P. Haugland, James E. Whitaker
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Patent number: 5131916Abstract: Aqueous emulsions based on certain graft polymers are outstandingly suitable for the production of colored inks for so-called marker pens. They are distinguished, for example, by a high storage stability.Type: GrantFiled: February 22, 1991Date of Patent: July 21, 1992Assignee: Bayer AktiengesellschaftInventors: Herbert Eichenauer, Artur Haus
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Patent number: 5125929Abstract: A fluorescent resin suitable for use as a paper strength enhancing additive having the formula: ##STR1## where each R is independently selected from the class consisting of methyl and hydrogen, X is a halogen selected from the group consisting of Cl, Br and I, and n is the integer 8 or a larger integer.Type: GrantFiled: November 29, 1990Date of Patent: June 30, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Ronald L. Amey
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Patent number: 5124149Abstract: The present invention relates to compositions and methods of their use for the management or biocontrol on insect pests. The compositions comprise an entomopathogen and a chitin synthetase inhibitor alone or in combination with a UV protectant. Alternatively, compositions are disclosed comprising an entomopathogen and a fluorescent brightener of the stilbene type which may have chitin synthetase inhibitory properties. Specifically, entomopathogens such as Nuclear polyhedrosis viruses (NPV), Cytoplasmic polyhedrosis viruses (CPV), Entomopox viruses (EPV) and Granulosis viruses (GV) and iridescent virus (IV) are protected from UV radiation and their biological activity enhanced using fluorescent brighteners analogs, particularly, 4, 4'-diamino-2, 2'-stilbene disulfonic acid.Type: GrantFiled: November 7, 1990Date of Patent: June 23, 1992Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Martin Shapiro, Edward Dougherty, John J. Hamm
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Patent number: 5118349Abstract: The invention concerns a security-marking procedure, an apparatus to sense a security marking, fiduciary documents provided with security markings, by resorting to rare-earth chelates consisting of at least two rare-earths and of which the fluorescence wavelengths vary as functions of temperature, and fiduciary document containing such chelate(s).Type: GrantFiled: February 9, 1990Date of Patent: June 2, 1992Assignee: PetrelInventor: Michel Jalon
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Patent number: 5098445Abstract: An ultraviolet radiation absorbing contact lens and method ofl making the same, comprising a copolymeric hydrogel material to which is covalently bonded at least one halotriazine reactive ultraviolet radiation absorbing agent of the formula: ##STR1## where X=Cl or F;E,A=an ultraviolet radiation absorbing component; andE.sup.1 =an aqueous soluble moiety.Type: GrantFiled: January 22, 1990Date of Patent: March 24, 1992Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 5096458Abstract: Stable aqueous solutions of anionic dyestuffs, preferably reactive dyestuffs, are obtained at very low costs by pressure permeation, if the feed solution for the pressure permeation is prepared by stirring the optionally dried presscake or the suspension of the crude dyestuff in an electrolyte solution.Type: GrantFiled: December 13, 1990Date of Patent: March 17, 1992Assignee: Bayer AktiengesellschaftInventors: Martin Michna, Hans-Werner Zillger, Dietrich Tegtmeyer
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Patent number: 5071993Abstract: Compounds of the formula ##STR1## in which R.sup.1 and R.sup.3 independently of one another are C.sub.1 -C.sub.8 alkyl, cyclopentyl, cyclohexyl, C.sub.7 -C.sub.9 aralkyl, phenyl or a group of the formula--C.sub.m H.sub.2m+1-q (X).sub.q (II)in which m is a number from 0-10 and q is 1 or 2, with q=1 in the case of m=0, R.sup.2 and R.sup.4 independently of one another are each a group of the formula II or, in the case that R.sup.1 and R.sup.3 are each a group of the formula II, R.sup.2 and R.sup.4 independently of one another can also be C.sub.1 -C.sub.8 alkyl, cyclopentyl, cyclohexyl, C.sub.7 -C.sub.9 aralkyl or phenyl, R.sup.5 and R.sup.6 independently of one another are hydrogen, methyl, ethyl or together are trimethylene or tetramethylene, and X is a group of the formula ##STR2## in which the general symbols are as defined in claim 1, are suitable as fluorescent brighteners especially for photographic recording materials and for synthetic polymers.Type: GrantFiled: September 12, 1989Date of Patent: December 10, 1991Assignee: Ciba-Geigy CorporationInventors: David G. Leppard, Eric Vieira
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Patent number: 5064570Abstract: Dispersion fluorescent brightener preparations which contain specific water-insoluble aromatic or C.sub.14 -C.sub.18 fatty alcohol auxiliaries which have melting points between above 40.degree. C. and 200.degree. C. are described. The preparations are used for fluorescent brightening of coating compositions for coating paper, cardboard, wood, films, textile materials, non-woven materials and building materials.Type: GrantFiled: January 24, 1990Date of Patent: November 12, 1991Assignee: Ciba-Geigy CorporationInventor: Peter Rohringer
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Patent number: 5053055Abstract: 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 thereof for whitening textile fibre materials. These novel dispersions are storage-stable.Type: GrantFiled: November 22, 1988Date of Patent: October 1, 1991Assignee: Ciba-Geigy CorporationInventors: Werner Fringeli, Martin Jollenbeck
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Patent number: 5053054Abstract: Reagents and methods for intracellular staining of anionic materials as provided. The inherent staining characteristics of a fluorescent molecule may be suitably altered by covalently linking a plurality of said molecules to a nonimmunoglobulin derived cationic polymer having the desired staining specificity. By careful selection of the net charge and size of the dye polymer complex, diffusion through the cellular membrane can be enhanced and an enhanced fluorescent signal obtained by localization of a plurality of fluorescent molecules at the site of interest.Type: GrantFiled: September 14, 1989Date of Patent: October 1, 1991Assignee: Ortho Pharmaceutical CorporationInventors: Stefan J. Kirchanski, A. R. M. Azad, Peter J. Natale
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Patent number: 5051111Abstract: 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-vinylpyrrolidone and 3-vinylpropionic acid, their preparation and the use thereof for whitening polyester/cellulose fiber material. These novel dispersions are storage-stable and temperature-stable.Type: GrantFiled: November 22, 1988Date of Patent: September 24, 1991Assignee: Ciba-Geigy CorporationInventors: Italo Anceschi, Werner Fringeli, Martin Jollenbeck, Georges Mahler, Willy Schurings
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Patent number: 5013328Abstract: A substrate to which a dyestuff or optical brightener has been applied is aftertreated with a cationic or protonatable polymeric Product P selected from:(A) a polymeric reaction product, Product A, of a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups with cyanamide, dicyanamide, guanidine or bisguanidine in which up to 50 mole percent of the cyanamide, dicyanamide, guanidine or bisguanidine may be replaced by a dicarboxylic acid or a mono- or di-ester thereof, with the splitting off ammonia, optionally in the presence of a catalyst; Product A containing at least one free hydrogen atom linked to a nitrogen atom; or(B) the polymeric reaction product, Product B, of Product A with(a) epichlorohydrin or a precursor thereof; or(b) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amine optionally in the presence of a catalyst for crosslinking N-methylol compounds; or(c) a water-soluble homo- or co-polymer, PrType: GrantFiled: November 15, 1989Date of Patent: May 7, 1991Assignee: Sandoz Ltd.Inventors: Oskar Annen, Bernhard Schlick
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Patent number: 5009669Abstract: Aqueous stable dispersion of UV-absorbing 2-(2'-hydroxyphenyl)benzotriazole compounds containing(a) 15 to 50 per cent by weight of a benzotriazole compound of the formula ##STR1## where R is halogen, C.sub.1 -C.sub.12 alkyl, lower alkoxy, lower alkoxycarbonyl, cycloalkyl, aryl, C.sub.1 -C.sub.12 alkylaryl or aralkyl, and the rings A and B can be further substituted independently of one another by halogen, hydroxyl, lower alkyl, lower alkoxy or lower alkoxycarbonyl, and(b) 2 to 20 per cent by weight of an acid ester, or salt thereof, of an alkylene oxide adduct of the formula ##STR2## where X is the acid radical of an inorganic oxygen-containing acid, or else the radical of an organic acid and Y is C.sub.1 -C.sub.12 alkyl, aryl or aralkyl, "Alkylen" is the ethylene radical or propylene radical, and m is from 1 to 4 and n from 4 to 50.These dispersions are excellent agents for improving the light fastness of dyeings of synthetic fibres, in particular polyester fibres or acid-modified polyester fibres.Type: GrantFiled: May 30, 1989Date of Patent: April 23, 1991Assignee: Ciba-Geigy CorporationInventors: Martin Jollenbeck, Hans-Ulrich Berendt, Werner Fringeli
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Patent number: 5007942Abstract: Light-polarizing films or sheets, preferably based on vinyl alcohol homopolymers or copolymers contain dyestuffs of the formula ##STR1## in which X and Y have the meanings given in the description.Type: GrantFiled: December 14, 1989Date of Patent: April 16, 1991Assignee: Bayer AktiengesellschaftInventors: Uwe Claussen, Friedrich W. Krock
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Patent number: 4999138Abstract: A high density-having, granular, concentrated detergent composition comprises:(1) 30 to 50 wt. % of an anionic surface active agent,(2) 40 to 60 wt. % of an inorganic builder,(3) a fluorescent dye,(a) 5 to 25 wt. % of potassium salt of an anionic surfactant or 2 to 10 wt. % of potassium carbonate or potassium sulfate,(b) 0.1 to 3 wt. % of sodium chloride and(c) 0.2 to 5 wt. % of polyethylene glycol having a molecular weight of 6,000 to 20,000.Type: GrantFiled: July 6, 1989Date of Patent: March 12, 1991Assignee: Kao CorporationInventors: Tutomu Nebashi, Shinichi Yabe, Nobuyoshi Yamaguchi, Shuichi Takizawa, Fumio Sai
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Patent number: 4963160Abstract: An ultraviolet radiation absorbing agent for bonding to an ocular lens, wherein the agent has the formula: ##STR1## wherein A and B are ultraviolet radiation absorbing components which are either identical to or are dissimilar to each other.Type: GrantFiled: March 14, 1989Date of Patent: October 16, 1990Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 4961755Abstract: There are disclosed coated active substances and a process for the preparation thereof, wherein said active substances are dyes, fluorescent whitening agent, photoactivators and/or textile microbicides, if appropriate together with extenders, dispersants, buffers, stabilizers and/or other auxiliaries.Type: GrantFiled: December 19, 1988Date of Patent: October 9, 1990Assignee: Ciba-Geigy CorporationInventors: Beat Bruttel, Petr Kvita
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Patent number: 4950304Abstract: There is disclosed a process for quenching or suppressing the fluorescence of natural or synthetic polyamide substrates treated, or to be treated, with fluorescent whitening agents, which process comprises applying to said substrates, before or after the treatment with the fluorescent whitening agent, a sulfonated UV absorber of formula ##STR1## wherein X, R.sub.1, R.sub.2 and R.sub.3 are as defined in claim 1, and fixing said UV absorber thereon.Type: GrantFiled: September 23, 1988Date of Patent: August 21, 1990Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Kurt Burdeska
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Patent number: 4940469Abstract: A stable and low-foaming composition for finishing synthetic fibres which contains, based on (a)+(b)+(c)(a) 15 to 84% by weight of a sparingly water-soluble or water-insoluble dye, fluorescent whitening agent or UV absorber,(b) 15.5% to 75% by weight of one or more dispersing agents, and(c) 0.5 to 10% by weight of an alkylenediamide.Type: GrantFiled: January 30, 1989Date of Patent: July 10, 1990Assignee: Ciba-Geigy CorporationInventors: Reinhart Mockel, Roland Putzar
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Patent number: 4940555Abstract: 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.Type: GrantFiled: March 15, 1989Date of Patent: July 10, 1990Assignee: Ciba-Geigy CorporationInventors: Claude Eckhardt, Heinz Hefti
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Patent number: 4933948Abstract: Aqueous solutions useful in dye lasers contain a substituted cyclodextrin-fluorescent dye inclusion compound, and an excess of the cyclodextrin. Such solutions give greater fluorescent yields than similar inclusion compounds made from non-substituted cyclodextrins.Type: GrantFiled: May 30, 1989Date of Patent: June 12, 1990Assignee: Eastman Kodak CompanyInventor: William G. Herkstroeter
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Patent number: 4929250Abstract: An ultraviolet radiation absorbing contact lens and method of making the same, comprising a copolymeric hydrogel material to which is covalently bonded at least one halotriazine reactive ultraviolet radiation absorbing agent of the formula: ##STR1## where X=Cl or F;A=an ultraviolet radiation absorbing component; andB=an aqueous soluble moiety.Type: GrantFiled: March 14, 1989Date of Patent: May 29, 1990Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 4925595Abstract: Liquid detergent compositions which are stable on storage and contain fluorescent whitening agents from the class of the disulfonated distyrylbiphenyl and distyrylphenyl compounds; they do not produce bleach spots on direct contact with textile fabric. Some of the fluorescent whitening agents used are novel.Type: GrantFiled: June 27, 1988Date of Patent: May 15, 1990Assignee: Ciba-Geigy CorporationInventors: Heinz Hefti, Dieter Reinehr, Kurt Weber, Claude Eckhardt
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Patent number: 4921280Abstract: The invention relates to security fibers and other allied materials made luminescent by a dyeing process employing rare-earth compounds and their applications in fiduciary documents and other materials requiring authentication.Type: GrantFiled: June 13, 1989Date of Patent: May 1, 1990Inventor: Michel Jalon
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Patent number: 4908040Abstract: Compounds of the formula ##STR1## in which X, Y, A and M are as defined in claim 1, a process for their preparation and their use as shading dyes in washing agents.Type: GrantFiled: October 28, 1987Date of Patent: March 13, 1990Assignee: Ciba-Geigy CorporationInventors: Rudolf Naef, Claude Eckhardt
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Patent number: 4880433Abstract: There is disclosed a process for aftertreating cellulose and cellulosic materials printed with reactive dyes by treating said printed material with an aqueous liquor that contains at least one cationic assistant, at least one amphoteric and/or at least one cationic fluorescent whitening agent. The prints so obtained have very good washfastness, especially very good wetfastness, and the required degree of whiteness.Type: GrantFiled: January 27, 1987Date of Patent: November 14, 1989Assignee: Ciba-Geigy CorporationInventors: Wolfgang Sutterlin, Raymond Defago
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Patent number: 4859207Abstract: A process for dyeing textile planar fabrics made from natural or synthetic polyamides with anionic dyes by(a) locally applying a resist agent by itself or in conjunction with an anionic dye of fluorescent whitening agent,(b) subjecting the textiles to a heat treatment, and(c) carrying out ground dyeing with a dye liquor that contains a further anionic dye,which process comprises using, as resist agent, a melamine compound of formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently phenyl or naphthyl, each of which may be substituted by halogen, hydroxy, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, Z is an acid water-solubilizing group, and m is 1 to 6.Type: GrantFiled: July 19, 1988Date of Patent: August 22, 1989Assignee: Ciba-Geigy CorporationInventors: Thys Bouwknegt, Heinz Abel
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Patent number: 4838896Abstract: A mixture of a textile auxiliary (T) obtained by reacting epichlorohydrin and ammonia in defined mole ratio, and a polymeric compound (P) which is a water-soluble homopolymer of a mono- or di-allylamine, or a water-soluble copolymer consisting of mono-, di- or tri-allylamine units may be used as an aftertreatment agent for fixation of anionic and sulphur dyeings on cellulosic fibres. The treated dyeings have better fastness properties than dyeings treated with either (T) or (P) alone.Type: GrantFiled: February 1, 1988Date of Patent: June 13, 1989Assignee: Sandoz Ltd.Inventors: Bruno Kissling, Tibor Robinson
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Patent number: 4814453Abstract: New optical brighteners of the general formula ##STR1## in which R denotes hydrogen, alkyl, alkoxyalkyl, cyclohexyl, methylcyclohexyl, benzyl, phenylethyl, phenyl, alkylphenyl or xylyl,X denotes a C.sub.2 -C.sub.7 -alkylene group or a bridge member of the formula --X.sup.1 --(OX.sup.2).sub.n -- in which X.sup.1 and X.sup.2 denote C.sub.2 H.sub.4 or C.sub.3 H.sub.7 and n denotes 1 or 2 and Me denotes a proton, an alkali metal cation or a cation NH.sub.2 R.sup.1 R.sup.2 in which R.sup.1 and R.sup.2 represent hydrogen, alkyl or hydroxyalkyl.Type: GrantFiled: May 29, 1987Date of Patent: March 21, 1989Assignee: Hoechst AktiengesellschaftInventors: Erich Schinzel, Thomas Martini
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Patent number: 4813973Abstract: Water-soluble, amide group containing polymers such as polyacrylamide are modified, to render them easy to detect, by reacting the polymer in aqueous solution with organic dye molecules which can form stable carbo-cations reversibly in water. The labelled polymers can then be detected spectrophotometrically. An example of a suitable dye molecule is 9-xanthydrol.Type: GrantFiled: January 11, 1988Date of Patent: March 21, 1989Assignee: The University of Toronto Innovations FoundationInventors: Mitchell A. Winnik, Robert M. Borg
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Patent number: 4787912Abstract: An assistant for dyeing or whitening synthetic nitrogen-containing fibre material, which comprises(A) a sulfonated polycarboxylate,(B) an anionic surfactant,(C) a nonionic surfactant, and(D) a water-soluble organic, polar solvent.The assistant is especially useful for dyeing or whitening polyamide fibres.Type: GrantFiled: January 28, 1987Date of Patent: November 29, 1988Assignee: Ciba-Geigy CorporationInventors: Heinz Abel, Helmut Raisin