Fluorescent Dye, E.g., Stilbene, Benzimidazole, Benzoxazole, Benzothiazole, Pyrazoline Dye, Etc., Optical Brightner Or Bluing Agent Patents (Class 8/648)
  • Patent number: 5437689
    Abstract: 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: Grant
    Filed: March 7, 1994
    Date of Patent: August 1, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Manfred Rembold, Claude Eckhardt, Peter Nesvadba
  • Patent number: 5387264
    Abstract: 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: Grant
    Filed: March 31, 1994
    Date of Patent: February 7, 1995
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yasuo Murakami, Ryuzo Orita, Tadaaki Sugimoto, Masao Ohnishi
  • Patent number: 5360559
    Abstract: 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: Grant
    Filed: December 16, 1993
    Date of Patent: November 1, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Thomas W. Cooke
  • Patent number: 5356438
    Abstract: 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: Grant
    Filed: January 7, 1993
    Date of Patent: October 18, 1994
    Assignee: Pacific Corporation
    Inventors: Chang K. Kim, Jin K. Cha, Eung S. Kang
  • Patent number: 5322525
    Abstract: 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: Grant
    Filed: October 30, 1992
    Date of Patent: June 21, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Manfred Rembold, Claude Eckhardt, Peter Nesvadba
  • Patent number: 5298033
    Abstract: 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: Grant
    Filed: January 12, 1993
    Date of Patent: March 29, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: William M. Hung, Kai C. Su
  • Patent number: 5279772
    Abstract: 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: Grant
    Filed: February 1, 1993
    Date of Patent: January 18, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Claude Eckhardt, Kurt Weber
  • Patent number: 5272259
    Abstract: 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: Grant
    Filed: May 26, 1992
    Date of Patent: December 21, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uwe Claussen, Friedrich W. Krock
  • Patent number: 5269815
    Abstract: 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: Grant
    Filed: November 13, 1992
    Date of Patent: December 14, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Schlenker, Dieter Werthemann, Claude Eckhardt
  • Patent number: 5266271
    Abstract: 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: Grant
    Filed: May 22, 1992
    Date of Patent: November 30, 1993
    Assignee: Puritan-Bennett Corporation
    Inventors: Charles S. Bankert, Henry K. Hui, Alan M. Nelson
  • Patent number: 5266078
    Abstract: 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: Grant
    Filed: February 19, 1992
    Date of Patent: November 30, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ulrich Welkener, Thord Hassler, Gunilla Hakansson
  • Patent number: 5250079
    Abstract: 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: Grant
    Filed: August 7, 1992
    Date of Patent: October 5, 1993
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Patent number: 5203876
    Abstract: 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: Grant
    Filed: February 22, 1991
    Date of Patent: April 20, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Adolf Kaser
  • Patent number: 5201921
    Abstract: 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: Grant
    Filed: September 6, 1991
    Date of Patent: April 13, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Luttermann, Uwe Claussen, Aziz El Sayed, Reinhard Riess
  • Patent number: 5167871
    Abstract: 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: Grant
    Filed: May 20, 1991
    Date of Patent: December 1, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Martin Jollenbeck, Claude Eckhardt
  • Patent number: 5164100
    Abstract: 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: Grant
    Filed: September 27, 1991
    Date of Patent: November 17, 1992
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Matthew E. Langer, Ferial Khorshahi, John F. Hessel, Simon R. Ellis
  • Patent number: 5152921
    Abstract: 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: Grant
    Filed: November 2, 1990
    Date of Patent: October 6, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Weber, Claude Eckhardt
  • Patent number: 5136005
    Abstract: 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: Grant
    Filed: October 13, 1989
    Date of Patent: August 4, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Robert E. Hermes
  • Patent number: 5132432
    Abstract: 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: Grant
    Filed: September 22, 1989
    Date of Patent: July 21, 1992
    Assignee: Molecular Probes, Inc.
    Inventors: Richard P. Haugland, James E. Whitaker
  • Patent number: 5131916
    Abstract: 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: Grant
    Filed: February 22, 1991
    Date of Patent: July 21, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Eichenauer, Artur Haus
  • Patent number: 5125929
    Abstract: 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: Grant
    Filed: November 29, 1990
    Date of Patent: June 30, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ronald L. Amey
  • Patent number: 5124149
    Abstract: 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: Grant
    Filed: November 7, 1990
    Date of Patent: June 23, 1992
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Martin Shapiro, Edward Dougherty, John J. Hamm
  • Patent number: 5118349
    Abstract: 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: Grant
    Filed: February 9, 1990
    Date of Patent: June 2, 1992
    Assignee: Petrel
    Inventor: Michel Jalon
  • Patent number: 5098445
    Abstract: 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: Grant
    Filed: January 22, 1990
    Date of Patent: March 24, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: William M. Hung, Kai C. Su
  • Patent number: 5096458
    Abstract: 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: Grant
    Filed: December 13, 1990
    Date of Patent: March 17, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Michna, Hans-Werner Zillger, Dietrich Tegtmeyer
  • Patent number: 5071993
    Abstract: 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: Grant
    Filed: September 12, 1989
    Date of Patent: December 10, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, Eric Vieira
  • Patent number: 5064570
    Abstract: 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: Grant
    Filed: January 24, 1990
    Date of Patent: November 12, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Rohringer
  • Patent number: 5053055
    Abstract: 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: Grant
    Filed: November 22, 1988
    Date of Patent: October 1, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Werner Fringeli, Martin Jollenbeck
  • Patent number: 5053054
    Abstract: 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: Grant
    Filed: September 14, 1989
    Date of Patent: October 1, 1991
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Stefan J. Kirchanski, A. R. M. Azad, Peter J. Natale
  • Patent number: 5051111
    Abstract: 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: Grant
    Filed: November 22, 1988
    Date of Patent: September 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Italo Anceschi, Werner Fringeli, Martin Jollenbeck, Georges Mahler, Willy Schurings
  • Patent number: 5013328
    Abstract: 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, Pr
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: May 7, 1991
    Assignee: Sandoz Ltd.
    Inventors: Oskar Annen, Bernhard Schlick
  • Patent number: 5009669
    Abstract: 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: Grant
    Filed: May 30, 1989
    Date of Patent: April 23, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Martin Jollenbeck, Hans-Ulrich Berendt, Werner Fringeli
  • Patent number: 5007942
    Abstract: 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: Grant
    Filed: December 14, 1989
    Date of Patent: April 16, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uwe Claussen, Friedrich W. Krock
  • Patent number: 4999138
    Abstract: 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: Grant
    Filed: July 6, 1989
    Date of Patent: March 12, 1991
    Assignee: Kao Corporation
    Inventors: Tutomu Nebashi, Shinichi Yabe, Nobuyoshi Yamaguchi, Shuichi Takizawa, Fumio Sai
  • Patent number: 4963160
    Abstract: 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: Grant
    Filed: March 14, 1989
    Date of Patent: October 16, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: William M. Hung, Kai C. Su
  • Patent number: 4961755
    Abstract: 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: Grant
    Filed: December 19, 1988
    Date of Patent: October 9, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Beat Bruttel, Petr Kvita
  • Patent number: 4950304
    Abstract: 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: Grant
    Filed: September 23, 1988
    Date of Patent: August 21, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Kurt Burdeska
  • Patent number: 4940469
    Abstract: 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: Grant
    Filed: January 30, 1989
    Date of Patent: July 10, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Reinhart Mockel, Roland Putzar
  • Patent number: 4940555
    Abstract: 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: Grant
    Filed: March 15, 1989
    Date of Patent: July 10, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Claude Eckhardt, Heinz Hefti
  • Patent number: 4933948
    Abstract: 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: Grant
    Filed: May 30, 1989
    Date of Patent: June 12, 1990
    Assignee: Eastman Kodak Company
    Inventor: William G. Herkstroeter
  • Patent number: 4929250
    Abstract: 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: Grant
    Filed: March 14, 1989
    Date of Patent: May 29, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: William M. Hung, Kai C. Su
  • Patent number: 4925595
    Abstract: 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: Grant
    Filed: June 27, 1988
    Date of Patent: May 15, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Heinz Hefti, Dieter Reinehr, Kurt Weber, Claude Eckhardt
  • Patent number: 4921280
    Abstract: 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: Grant
    Filed: June 13, 1989
    Date of Patent: May 1, 1990
    Inventor: Michel Jalon
  • Patent number: 4908040
    Abstract: 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: Grant
    Filed: October 28, 1987
    Date of Patent: March 13, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf Naef, Claude Eckhardt
  • Patent number: 4880433
    Abstract: 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: Grant
    Filed: January 27, 1987
    Date of Patent: November 14, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Sutterlin, Raymond Defago
  • Patent number: 4859207
    Abstract: 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: Grant
    Filed: July 19, 1988
    Date of Patent: August 22, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Thys Bouwknegt, Heinz Abel
  • Patent number: 4838896
    Abstract: 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: Grant
    Filed: February 1, 1988
    Date of Patent: June 13, 1989
    Assignee: Sandoz Ltd.
    Inventors: Bruno Kissling, Tibor Robinson
  • Patent number: 4814453
    Abstract: 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: Grant
    Filed: May 29, 1987
    Date of Patent: March 21, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Schinzel, Thomas Martini
  • Patent number: 4813973
    Abstract: 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: Grant
    Filed: January 11, 1988
    Date of Patent: March 21, 1989
    Assignee: The University of Toronto Innovations Foundation
    Inventors: Mitchell A. Winnik, Robert M. Borg
  • Patent number: 4787912
    Abstract: 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: Grant
    Filed: January 28, 1987
    Date of Patent: November 29, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Heinz Abel, Helmut Raisin