Patents Assigned to Ciba-Geigy
  • Patent number: 4655785
    Abstract: A process for the photochemical stabilization of undyed and dyed polyamide or polyurethane fibre material that is characterized in that the fibre material is treated with a water soluble, organic copper, manganese or nickel complex that displays an affinity for the fibres. The polyamide or polyurethane fibre material, e.g., textile, that has been so treated retains its stretch characteristics and elasticity even after prolonged periods of illumination. In addition, in the case of dyed material, treatment with the metal complex results in a marked improvement in light-fastness.
    Type: Grant
    Filed: May 21, 1985
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Gerhard Back, Helmut Huber-Emden
  • Patent number: 4656292
    Abstract: 2,3-Dimethylmaleimido-alkyl or oxaalkyl haloacetates are useful in the preparation of polymers containing maleimide groups and quaternary ammonium groups which polymers are soluble in water. The polymers can be used as light-sensitive photographic recording materials which can be developed with water.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Martin Roth
  • Patent number: 4654340
    Abstract: The invention concerns compounds of formula I ##STR1## wherein R is a fluorine, bromine or iodine atom or the amino, acetylamino, methyl, cyano, hydroxyl, methoxy or trifluoromethyl group, the tautomeric forms thereof, and acid addition salts of the compounds in which R represents amino. The products have antithrombotic activity. They can be prepared according to methods known per se.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: March 31, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Richard Goschke
  • Patent number: 4654384
    Abstract: Novel water-soluble triazine compounds of the formula ##STR1## in which D and D.sub.1 independently of one another are radicals of diazo components, R and R.sub.1 independently of one another are hydrogen or C.sub.1 -C.sub.4 -aklyl, X is a monosubstituted or disubstituted amino group, a C.sub.1 -C.sub.4 -alkoxy group or an aryloxy group, the symbols Y are basic or cationic groups, which can be identical or different, l is 2, 3, 4, 5 or 6 and n is 0 or 1, and the number of basic and/or cationic groups Y in the molecule must be equal to or greater than the number of SO.sub.3 H groups are useful as dyes for dyeing and printing textile materials, leather and in particular, paper. The dyeings have good general fastness properties and the effluents remain colorless.
    Type: Grant
    Filed: January 12, 1984
    Date of Patent: March 31, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Visvanathan Ramanathan, Peter Mockli
  • Patent number: 4654046
    Abstract: The invention relates to a thermosol pad-steam process for the continuous dyeing of cellulose/polyamide blends, which comprises impregnating said blends with a pad liquor which contains a non-ionic surfactant or a mixture of non-ionic surfactants, in addition to at least one vat dye and at least one metal complex dye and optionally further auxiliaries.This process is particularly suitable for dyeing large yardages.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: March 31, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Hellmut Felle
  • Patent number: 4654302
    Abstract: The present invention relates to desulfatohirudins, to the preparation thereof, to pharmaceutical compositions containing these compounds, and to the use thereof.The desulfatohirudins of this invention correspond to hirudin in biological activity and are therefore particularly useful for inhibiting blood clotting.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: March 31, 1987
    Assignees: Ciba-Geigy Corporation, Plantorgan Werk Heinrich G.E. Christensen KG
    Inventors: Hans Fritz, Johannes Dodt, Ursula Seemuller, Ernst Fink
  • Patent number: 4652631
    Abstract: 1:2 chromium complex dyes suitable for dyeing nitrogen-containing materials and materials which contain hydroxyl groups, are disclosed which, in the form of the free acid, have the formula ##STR1## wherein each of the symbols independently has the following meanings: Z is nitrogen or a --CH,A is a benzene or naphthalene radical which carries the hydroxyl or carboxy ortho to the azo or azomethine group, or, if n is 1 and Z is a --CH, is the radical of an aliphatic, cycloaliphatic or aromatic aminocarboxylic acid,B and D are each independently of the other the radical of a coupling component which couples in the alpha- or o-position relative to X if Z is nitrogen, or the radical of an o-hydroxyaldehyde if Z is --CH,X is oxygen or --NR, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl, with the proviso that X must be oxygen if Z is --CH,Y is a bridge member of the formula --SO.sub.2 or --SO.sub.2 --NR--SO.sub.2 --, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl,n is 0 or 1, andp is an integer from 0 to 6.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: March 24, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Fabio Beffa, Ulrich Schlesinger
  • Patent number: 4652645
    Abstract: There are described novel cationic compounds of the formula ##STR1## wherein the symbols B and Z have the meanings defined in claim 1, and also processes for producing them and their use for dyeing and printing textile materials, such as polyacrylonitrile materials, leather and particularly paper, there being obtained greenish to reddish yellow dyeings which are distinguished by good general fastness properties.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: March 24, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Willy Stingelin, Jean-Marie Adam
  • Patent number: 4652653
    Abstract: The reaction of 2-mercapto-benzothiazole or -benzimidazole with .alpha.,.beta.-unsaturated carboxylic acid derivatives in a strongly acid reaction medium gives compounds of the formula I ##STR1## in which X is sulfur or NH, each radical R independently of one another is H, alkyl, halogenalkyl, alkoxy, alkylthio, alkylsulfonyl, phenyl, alkylphenyl, phenylalkyl, cycloalkyl, halogen, NO.sub.2, CN, COOH, COOalkyl or a tertiary amino or carbamoyl group and R.sup.1, R.sup.2 and R.sup.3 independently of one another are H, alkyl, halogenalkyl, hydroxyalkyl, alkoxyalkyl unesterified or esterified carboxyl or carboxylalkyl, carbamyol, carbamyolalkyl or unsubstituted or substituted aryl or aralkyl, or R.sup.1 and R.sup.2 together are straight-chain or branched alkylene, which can be substituted by 1 or 2 carboxyl groups, R.sup.4 is unsubstituted or substituted amino, alkoxy, cycloalkoxy, aryloxy or aralkyloxy, or R.sup.2 and R.sup.4 together are CH.sub.2 --CO--O-- or --CH.sub.2 CO--NR.sup.5 -- or R.sup.3 and R.sup.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: March 24, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Marcus Baumann, Hans Bosshard, Hans Greuter
  • Patent number: 4652648
    Abstract: Phosphonous acid monoester-monoamides of the formula ##STR1## in which n is 1, R.sub.1 is phenyl, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen or alkyl, R.sub.5 is alkyl or cyclohexyl, R.sub.6 is 2,2,6,6-tetramethylpiperidin-4-yl or ##STR2## R.sub.3 may also be ##STR3## where X is methylene or isopropylidene and R.sub.6 is alkyl or cyclohexyl. Said compounds are suitable for protecting organic material from the harmful effect of heat, oxygen and light.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: March 24, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Michael Rasberger
  • Patent number: 4652269
    Abstract: Process for the continuous trichromatic dyeing of synthetic polyamide materials which comprises using at least one blue-dyeing fibre-reactive sulfo-containing anthraquinone dye together with at least one red-dyeing sulfo-containing azo dye and at least one yellow- or orange-dyeing sulfo-containing azo dye.The process according to the invention is suitable for the continuous dyeing of synthetic polyamide materials from aqueous liquors, producing level dyeings having good fastness properties, in particular good ozone fastness.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: March 24, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: James B. Bowles, Marshall White, Jr., Alois Puntener, Jean-Marie Adam, Peter Loew
  • Patent number: 4650870
    Abstract: Compounds of the formula (T).sub.g -E where T is a substituted 4-acyl-2-piperazinone group, g is 1 or 2 and E is a selected terminal or linking group, are effective light stabilizers for polyolefins and other organic polymers.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: March 17, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Thomas E. Conetta, Roger F. Malherbe, Roland A. E. Winter
  • Patent number: 4650867
    Abstract: A process for the preparation of 2,4,6-tris(aminophenylamino)triazines by condensing s-trichlorotriazine with 3 equivalents of a partially protected phenylenediamine and subsequently removing the protective groups, which process comprises carrying out the condensation in an anhydrous or water-containing aliphatic C.sub.2 -C.sub.4 alcohol, in the presence of an acid acceptor.2,4,6-Tris(aminophenylamino)triazines are important intermediates in dyestuff chemistry and are used, inter alia, for synthesizing textile, leather and paper dyes as well as pigments.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: March 17, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Ronco, Willy Stingelin, Ernst Hanggi
  • Patent number: 4650859
    Abstract: Chrome azo-azomethine dyes are disclosed which contain a benzthiazolylphenyl or stilbenyl radical bound via an aldehyde group to the aldehyde moiety of the azomethine dyes. The dyes are particularly useful for dyeing wool, polyamide and leather.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: March 17, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Fabio Beffa
  • Patent number: 4650861
    Abstract: This invention relates to novel azo dyes containing a 4-nitropyrazole azo moiety which may be substituted, for example, with an alkyl group which itself may be substituted, and an aniline coupler which may be substituted. The dyes produce bright red shades on hydrophobic textile fiber including polyesters, polyamides, and cellulose esters and show unexpected improvements in one or more of such properties as fastness to light, wash, ozone, gas such as oxides of nitrogen, perspiration, crock and sublimation, dyeability at desirable low energy levels to deep shades, build, pH stability, bloom resistance, leveling, migration, dye bath exhaustion, dye transfer, and the like.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: March 17, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Max A. Weaver, Gary T. Clark, Bill A. Eller
  • Patent number: 4650339
    Abstract: There is described a method of preparing working strength solution in a processing apparatus which comprises adding a requisite volume of concentrated solution to a storage vessel until the liquid level on the storage vessel reaches the top of a standpipe in the storage vessel and continuing to add diluent to the storage vessel so that excess liquid in the storage vessel flows down the standpipe to a connected working vessel, stopping the flow of diluent when the volume of liquid in the working vessel reaches a predetermined volume, then commencing to pump liquid drawn in part at least from the bottom of the working vessel into the storage vessel, the excess liquid in the storage vessel flowing into the working vessel, and continuing to pump liquid from the working vessel to the storage vessel until the specific gravities of the liquid in the storage vessel and in the working vessel are the same.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: March 17, 1987
    Assignee: Ciba-Geigy AG
    Inventors: Raphael J. F. Chetcuti, John E. Melbourne
  • Patent number: 4649221
    Abstract: Polyhydroxylamines are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the alkylated hydroxybenzoate light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosynergists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: March 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Ramanathan Ravichandran, Roger F. Malherbe, Raymond Seltzer
  • Patent number: 4649181
    Abstract: Novel glycidyloxy diketones of the formula I ##STR1## (in which, for example, X is glycidyloxy, Y is H and R is 1,3-phenylene) are described.The compounds of the formula can be used together with customary curing agents and/or curing catalysts for the preparation of crosslinked (cured) products which have good thermal and mechanical properties.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: March 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Darms, Charles E. Monnier
  • Patent number: 4649215
    Abstract: Novel asymmetric thioethers of the formula ##STR1## in which R.sup.1 represents a C.sub.1-3 -alkyl radical or a C.sub.1-3 -hydroxyalkyl radical of which the hydroxy group may be in esterified form,R.sup.2 represents an optionally unsaturated aliphatic radical having from 5 to 15 carbon atoms,R.sup.3 represents hydroxy, alkoxy or an optionally substituted amino group, and-X- represents a single bond, a methylene group or an optionally N-acylated primary aminomethylene groupwherein the O-atom of the hydroxy group is in the transconfiguration relative to the S-atom, are effective as leucotriene-antagonists since they eliminate the contractions of smooth muscles caused by leucotrienes and are therefore suitable for the treatment of allergic, especially asthmatic, conditions.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: March 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Andreas von Sprecher, Ivan Ernest, Alan J. Main, Andreas Beck
  • Patent number: 4649149
    Abstract: The invention relates to a process for the manufacture of novel benzazole derivatives of the formula I ##STR1## in which R.sub.1 represents an optionally 4-substituted piperazino group or a group of the formula R.sub.2 --alk--X.sub.2 --,R.sub.2 represents optionally esterified carboxy or represents hydroxymethyl,alk represents lower alkylene or lower alkylidene,X.sub.1 and X.sub.2, independently of one another, each represents oxygen or sulphur,Ph represents 1,2-phenylene optionally substituted as well as by the group R.sub.1 --C(.dbd.X.sub.1)--NH--,X.sub.3 represents oxygen, sulphur or optionally substituted imino, andR.sub.3 represents optionally fluorine-substituted lower alkyl or cycloalkyl,and their salts.The compounds of the formula I, which have proved to be excellent micro- and macrofilaricides and schistosomacides, are manufactured according to methods known per se.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: March 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean-Jacques Gallay, Ernst Schweizer