Patents Represented by Attorney George R. Dohmann
  • Patent number: 5409504
    Abstract: The invention provides a process for fixing dyes on organic material, which comprises fixing dyes containing at least one polymerizable double bond or at least one polymerizable ring system, in the presence of at least one colorless binder which contains at least one polymerizable double bond, and at least one photosensitizer, as well as further optional auxiliaries, by subjecting said material to irradiation with UV light. The invention also provides a dyeing formulation which enables the dyeing to be fixed by the inventive process.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: April 25, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Katharina Fritzsche
  • Patent number: 5407885
    Abstract: Compounds of formula I or V or mixtures thereof ##STR1## wherein R is unsubstituted C.sub.6 -C.sub.14 aryl or C.sub.6 -C.sub.14 aryl which is substituted by C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxy, C.sub.1 -C.sub.12 alkylthio, phenyl, benzyl, --CN, --CF.sub.3, halogen or --COOR.sub.5, and R.sub.5 is H, C.sub.1 -C.sub.18 alkyl, cyclohexyl, cyclopentyl, phenyl, C.sub.1 -C.sub.12 alkylphenyl, benzyl or C.sub.1 -C.sub.12 alkylbenzyl, and at least one of the substituents R.sub.1 to R.sub.4 is --F, --Cl or --Br, or is independently the group RO--, and the other substituents R.sub.1 to R.sub.4 are H, --F, --Cl or --Br, are reversible photochromic systems which can be used for contrast formation, light absorption or for the reversible optical storage of information.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: April 18, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Walter Fischer, Jurgen Finter, Heinz Spahni
  • Patent number: 5403360
    Abstract: A process for dyeing or printing cellulosic fibre material with reactive dyes, which comprises dyeing or printing said material with at least one reactive dye that contains a chlorotriazinyl radical, and washing off the dyeing or print so obtained with an aqueous solution to which at least 0.01 gram per liter of an alkaline earth metal salt has been added. Dyeings and prints of good fastness properties are obtained.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: April 4, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Sutterlin, Rolf Bitterli, Paul Schafflutzel
  • Patent number: 5399183
    Abstract: Process for the trichromatic dyeing or printing of natural or synthetic polyamide fibre materials, which comprises using at least one blue-dyeing anthraquinone dye of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, are hydrogen or C.sub.1 -C.sub.6 alkyl, the sum of the carbon atoms of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 being 4, 5 or 6 and the sulfo group in the anthraquinone dye of the formula (1) being attached in the position designated as 6 or 7, together with at least one red-dyeing dye of the formula (2) and at least one of the yellow- or orange-dyeing dyes of the formulae (3), (4) and (5), the dyes of the formulae (2), (3), (4) and (5) being as defined in claim 1.The process according to the invention is suitable for dyeing natural or synthetic polyamide materials from an aqueous liquor or for printing with printing pastes.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: March 21, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Jean-Marie Adam
  • Patent number: 5399545
    Abstract: Substituted benzyl carbamates of formula I ##STR1## wherein R is halogen, trifluoromethyl, cyano, nitro or C.sub.1 -C.sub.3 haloalkoxy;Z is hydrogen or halogen; orZ and R together in 2- and 3-position of the phenyl ring form the group --OCF.sub.2 O--;R.sub.1 is C.sub.1 -C.sub.5 alkyl; wherein in caseR and Z together in 2- and 3-position of the phenyl ring form the group --OCF.sub.2 --,R.sub.2 and R.sub.3 are each independently of the other hydrogen, methyl or ethyl; and in case R is halogen, trifluoromethyl, cyano, nitro or C.sub.1 -C.sub.3 haloalkoxy,R.sub.2 is methyl or ethyl; and R.sub.3 is hydrogen, methyl or ethyl;X is oxygen, sulfur, --SO-- or --SO.sub.2 --;Y is hydrogen, halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy or cyano; andn is 0, 1 or 2;and the diastereoisomers thereof, have pre- and postemergence herbicidal properties. The preparation of these compounds and the use thereof as herbicides are described.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: March 21, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Hermann Rempfler
  • Patent number: 5395948
    Abstract: The invention relates to fluoran colour formers having improved fastness to sublimation and migration stability, to their preparation, to pressure-sensitive and heat-sensitive recording materials containing said compounds and to their preparation. The fluorans have the formula (I) as defined in claim 1.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: March 7, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Rudolf Zink
  • Patent number: 5393878
    Abstract: Compounds of the formula I in the form of the racemates or enantiomers thereof, ##STR1## in which R.sub.1 and R.sub.2 independently of one another are hydrogen or a protective group, and B is a purine or pyrimidine radical or an analogue thereof, can be used as antiviral active ingredients or for the preparation of biologically active oligonucleotides.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: February 28, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Christian Leumann
  • Patent number: 5393606
    Abstract: Charge-transfer complexes of formula I(A.sup..crclbar.).sub.n B.sup.n.sym. (I)whereina) n is 1 or 2,b) A is the radical anion of a compound of formula II or of a mixture of compounds of formula II ##STR1## wherein the substituents R are the same and are H or C.sub.1 -C.sub.4 alkyl, or adjacent substituents R together form --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 --;R.sub.1 is H or C.sub.1 -C.sub.4 alkyl;X.sub.1 is .dbd.N--CN;and X.sub.2, X.sub.3 and X.sub.4 are .dbd.O or .dbd.N--CN, andc) when n=1, B is the monovalent radical cation and when n=2, B is the divalent radical cation of an N-aromatic compound having a total of from 1 to 5 aromatic rings that are unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or by C.sub.1 -C.sub.4 alkoxy, at least one ring containing at least one group --NR.sub.2 -- or [.dbd.N.sup.+ R.sub.2 --] I.sup.- wherein R.sub.2 is C.sub.1 -C.sub.4 alkyl or benzyl.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: February 28, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Chetcuti
  • Patent number: 5391749
    Abstract: Substituted naphthacenediones of the formula I ##STR1## in which R.sup.1 to R.sup.8 are H and at least one of R.sup.1 to R.sup.8, for example R.sup.2 and R.sup.3 or R.sup.2 and R.sup.6, are, for example, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 alkenoxy, C.sub.1 -C.sub.20 -alkylsulfinyl, --CN, --CF.sub.3, --NO.sub.2, --Si(CH.sub.3).sub.3 or --COO(C.sub.1 -C.sub.12 alkyl), are suitable, when incorporated into polymers having hydroxyalkyl groups, for currentless deposition of metals onto the polymer surface. They are in some cases suitable as photoinitiators.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: February 21, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Walter Fischer, Marcus Baumann, Jurgen Finter, Vratislav Kvita, Carl W. Mayer, Wolfgang Wernet
  • Patent number: 5391762
    Abstract: The compounds of the formula I ##STR1## in which Y and Y.sub.1 are each, independently of one another, O, S, NH or N-alkyl, N-cycloalkyl, N-phenyl or N-benzyl, or Y and Y.sub.1 are together N-alkylene-N,R and R.sub.1 are each, independently of one another, H, alkyl, cycloalkyl, aralkyl or aryl,R.sub.2 and R.sub.3 are each, independently of one another, H, or R.sub.2 forms, together with R.sub.6 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.3 is H, or R.sub.3 forms, together with R.sub.7 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.2 is H,R.sub.4 and R.sub.5 are each, independently of one another, H, R.sub.4 forms, together with R.sub.8 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.5 is H, or R.sub.5 forms, together with R.sub.9 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.4 is H,R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are each, independently of one another, H, alkyl, cycloalkyl, aralkyl or aryl, or R.sub.6 and R.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: February 21, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf Naef, Beat Schmidhalter, Hanspeter Preiswerk
  • Patent number: 5389108
    Abstract: The invention relates to a process for fixing dyes on organic material, which comprises fixing dyes containing at least one polymerizable double bond or at least one polymerizable ring system, excluding water-soluble dyes which carry acrylamido or methacrylamido groups, together with at least one substantially colorless compound which contains at least one polymerizable double bond, by subjecting said organic material, which has a residual moisture content of less than 20%, based on the treated material, to ionizing radiation.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: February 14, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Katharina Fritzsche, Martin Trottmann
  • Patent number: 5387683
    Abstract: A process is described for the photochemical and thermal stabilisation of undyed and dyed or printed polyester fibre materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 is C.sub.1 -C.sub.12 alkyl, andn is 0 to 5.Dyeings of superior lightfastness and sublimation fastness on polyester and cellulose acetate are obtained by this process.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: February 7, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Burdeska, Gerhard Reinert, Dieter Reinehr
  • Patent number: 5387281
    Abstract: The present invention relates to a heat stable red pigment composition comprising a 2,9-dichloroquinacridone and a bis-(4, 5,6,7-tetrachloroisoindolin-1-on-3-ylidene)-phenylene-1,4-diamine pigment and a process for its preparation. The red pigment compositions are particularly useful for pigmenting engineering plastics.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: February 7, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Fridolin Babler, Charles G. Orange
  • Patent number: 5387627
    Abstract: Radical cation salts having the composition of formula I ##STR1## wherein x has a value from -0.1 to +0.2. These radical cation salts crystallize in needle form and are electric conductors. They can be incorporated in polymers to form conductive networks of crystal needles in a polymer matrix. The polymers can be used for making antistatically treated mouldings or electrodes.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: February 7, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Hilti, Ernst Minder, Carl W. Mayer, Bernd Klingert
  • Patent number: 5382485
    Abstract: A process for the optical recording and storage of information in the form of bits by irradiating a recording material comprising a substrate coated with at least one layer of a pigment selected from the group of the dithiopyrrolopyrroles, dithioquinacridones, phthalocyanines or mixtures of several of these pigments as recording layer dotwise or linearly with laser light in the near infrared range (NIR range), which pigment (a) has a crystal modification having an absorption band in the NIR range, and (b) is in contact with a solid organic compound that changes the crystal modification of the pigment upon irradiation with laser light, so that (c) after irradiation the absorption in the NIR range is reduced, while the organic compound exhibits no absorption in the NIR range before and after irradiation.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: January 17, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Jin Mizuguchi, Gerald Giller
  • Patent number: 5380701
    Abstract: The invention relates to 3-aryluracils of formula I ##STR1## wherein W is a group of formula ##STR2## in which the linkage to the ring nitrogen atom is through the carbon atom: R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.3 - or C.sub.4 alkenyl or C.sub.3 - or C.sub.4 alkynyl;R.sub.2 is halogen or cyano;R.sub.3 is hydrogen or fluoro;R.sub.4 is hydrogen, halogen or C.sub.1 -C.sub.4 alkyl;R.sub.5 is C.sub.1 -C.sub.4 alkyl or C.sub.1 C.sub.4 haloalkyl;R.sub.6 to R.sub.9 are each independently of one another hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.1 -C.sub.4 haloalkyl or phenyl; orR.sub.6 and R.sub.7 or R.sub.8 and R.sub.9, together with the linking carbon atom, form a 3-, 4-, 5- or 6-membered ring which may be substituted by one or more C.sub.1 -C.sub.4 alkyl groups; or R.sub.7 and R.sub.9, together with the linking carbon atoms, form a 3-, 4-, 5- or 6-membered ring which may be substituted by one or more C.sub.1 -C.sub.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: January 10, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Winternitz, Martin Zeller
  • Patent number: 5378744
    Abstract: A composition comprising a) a thermosetting, thermoplastic or structurally crosslinked polymer and b) a charge transfer complex of formula I in the form of a network of crystal needles in the polymer matrix[A].sup..crclbar. B.sup..sym. (I),wherein A is a compound of formula II or a mixture of compounds of formula II ##STR1## wherein the R substituents are identical and are H or C.sub.1 -C.sub.4 alkyl, or the adjacent R substituents, taken together, are --(CH.sub.2).sub.3 --or --(CH.sub.2).sub.4 --; R.sub.1 or C.sub.1 -C.sub.4 alkyl; and H.sub.1 is .dbd.N--CN, and X.sub.2, X.sub.3 and X.sub.4 are each independently of one another .dbd.O or .dbd.N--CN, and B is a compound of formula III or IIIa ##STR2## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently of one another H, linear or branched C.sub.1 -C.sub.18 -alkyl-(Z.sub.1).sub.n --, phenyl-(Z.sub.1).sub.n - or benzyl-(Z.sub.1).sub.n --which are unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: January 3, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Chetcuti
  • Patent number: 5376148
    Abstract: There is disclosed a process for printing synthetic fibre by transfer printing, which comprises using a printing paste comprising(a) a water-soluble polymer that contains sulfo groups, and one or more than one component selected from the group consisting of(b) a deaerator,(c) an anionic or nonionic dispersant, and(d) a C.sub.1 -C.sub.3 alkanol.Tinctorially strong, patterned prints on a white ground of good levelness, good fastness properties and sharp contours are obtained with the process of this invention. The printing pastes are distinguished by good homogeneity, excellent storage properties and simple handling.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: December 27, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Paul Schafflutzel
  • Patent number: 5374639
    Abstract: Benzotriazolesulfonic acid derivatives of formula I ##STR1## wherein R.sub.3 =R.sub.4 X and R.sub.4 is an unsaturated 6-membered heterocycle having a maximum of 2 nitrogen atoms, it being possible for the heterocycle to be substituted, and X is oxygen or sulfur, while R.sub.1 and R.sub.2 are as defined herein, are valuable microbicides. They can be used in plant protection in the form of suitable compositions, for example for controlling fungal diseases.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: December 20, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Marius Sutter, Urs Muller, Bernhard Hostettler, Peter Ackermann, Yasuchika Yamaguchi
  • Patent number: 5369083
    Abstract: N-Pyridylsulfonyl-N'-pyrimidinylureas of formula I ##STR1## wherein R.sub.1 is methyl or methoxy andR.sub.2 is hydrogen or methyl;and the salts of those compounds with mines, alkali metal or alkaline earth metal bases or with quaternary ammonium bases, have good pre- and post-emergence selective herbicidal and growth-regulating properties.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: November 29, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Werner Fory