Patents by Inventor Georg Cseh

Georg Cseh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5151505
    Abstract: Compounds of formula ##STR1## wherein a and b are each independently of the other halogen, --CH.sub.3, --C.sub.2 H.sub.5, --OC.sub.2 H.sub.5 or the group of formula --NHCO--C.sub.1 -C.sub.4 alkyl, c and d are each independently of the other hydrogen, halogen, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5 or the group of formula --NHCO--C.sub.1 -C.sub.4 alkyl, and R.sup.1 is --CH.sub.3, phenyl, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --NHCO--C.sub.1 -C.sub.4 alkyl or --CONH--C.sub.1 -C.sub.4 alkyl, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, unsubstituted or substituted by a chlorine atom or a --OH group, or are C.sub.7 -C.sub.9 aralkyl, C.sub.5 -C.sub.8 cycloalkyl, phenyl or phenyl which is substituted by 1 to 3 halogen atoms or methyl or methoxy groups, or is a heterocyclic radical of the benzimidazole, benzoxazole, benzthiazole or pyridine series, or R.sup.3 and R.sup.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 29, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Stefan Hari, Georg Cseh
  • Patent number: 5066695
    Abstract: High-molecular weight organic material containing at least one metal complex of a ligand of formula I: ##STR1## wherein A is a carbocyclic aromatic or heterocyclic aromatic radical, B is a carbocyclic aromatic radical or a heterocyclic aromatic radical containing at least one N atom, it being necessary for at least one of the radicals A and B to be heterocyclic, and R.sub.1 is --C.sub.1 -C.sub.18 -alkyl, a carbocyclic aromatic radical or a heterocyclic aromatic radical containing at least one N atom, and the metal is a transition metal cation carrying a double positive charge selected from Ni.sup.2+, Cu.sup.2+, Co.sup.2+, Zn.sup.2+, Mn.sup.2+, Fe.sup.2+, Cd.sup.2+ or Pt.sup.2+ or the radical VO.sup.2+.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: November 19, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Paul Lienhard, Walter Wiedemann
  • Patent number: 4992495
    Abstract: Compounds of formula ##STR1## wherein a and b are each independently of the other halogen, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5 or the group of formula --NHCO--C.sub.1 -C.sub.4 alkyl, c and d are each independently of the other hydrogen, halogen, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5 or the group of formula --NHCO--C.sub.1 -C.sub.4 alkyl, and R.sup.1 is --CH.sub.3, phenyl, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --NHCO--C.sub.1 -C.sub.4 alkyl or --CONH--C.sub.1 -C.sub.4 alkyl, and R.sup.2, R.sup.3, R.sub.4 and R.sub.5 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, unsubstituted or substituted by a chlorine atom or a --OH group, or are C.sub.7 -C.sub.9 aralkyl, C.sub.5 -C.sub.8 cycloalkyl, phenyl or phenyl which is substituted by 1 to 3 halogen atoms or methyl or methoxy groups, or is a heterocyclic radical of the benzimidazole, benzoxazole, benzthiazole or pyridine series, or R.sup.3 and R.sup.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: February 12, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Stefan Hari, Georg Cseh
  • Patent number: 4775747
    Abstract: Transition metal complexes of the compounds of the formulae I and II ##STR1## in which A is an isocylic or heterocyclic aromatic radical, R is --H, halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, R.sub.1 is --H, C.sub.1 -C.sub.4 -alkyl or phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, --NO.sub.2, --CONH.sub.2, --CONHR.sub.2 or C.sub.2 -C.sub.5 -N-alkylcarbamoyl, X is --CH.dbd. or --N.dbd. andB is --H, C.sub.1 -C.sub.4 -alkyl, --NHCONH.sub.2, --NHCONH-C.sub.1 -C.sub.4 -alkyl, --NHCONR.sub.2, --NHCSNH.sub.2, --NHCSR.sub.3, --NHC(NH)NH.sub.2, --NHR.sub.2, --NHCOR.sub.3, --NHSO.sub.2 R.sub.3 or a heterocyclic aromatic radical, and R.sub.2 and R.sub.3 are phenyl or substituted phenyl, are suitable for pigmenting high-molecular organic material.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: October 4, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Paul Lienhard
  • Patent number: 4670486
    Abstract: High molecular weight organic material is effectively colored by the incorporation therein of a copper or nickel complex of the ligand compound of formula I ##STR1## wherein A is an isocyclic or heterocyclic aromatic moiety, R is H, halogen, lower alkyl or alkoxy, R.sub.1 is H, lower alkyl, phenyl or substituted phenyl, and B is H, lower alkyl, ureido or substituted ureido, guanidino, anilino, benzamido or a heterocyclic aromatic moiety.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: June 2, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Paul Lienhard
  • Patent number: 4639477
    Abstract: Process for mass-coloring high-molecular organic material, which comprises using a metal complex of the formulae I and/or Ia ##STR1## in which R is a hydrogen or chlorine atom or a methyl or methoxy group, R.sub.1 is a hydrogen atom, C.sub.1 -C.sub.4 -alkyl or phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, --NO.sub.2, --CONH.sub.2 --CONHR.sub.2 or C.sub.2 -C.sub.5 -N-alkylcarbamoyl, X is --CH.dbd. or --N.dbd., M is a divalent transition metal, and A is phenyl or substituted phenyl and R.sub.2 is alkyl, phenyl or substituted phenyl.The resulting colorations are distinguished by high tinctorial strength and good fastness properties, such as light, weathering and migration fastness properties.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: January 27, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Paul Lienhard
  • Patent number: 4473500
    Abstract: Monoazo pigment compounds of the formula ##STR1## wherein X is a group of the formula ##STR2## R is hydrogen or methyl, R.sub.1 and R.sub.2 are hydrogen, chlorine, methyl or methoxy, Y is methyl or phenyl, or Y is --O, --S--, --N(R.sub.3)-- or --C(R.sub.4).dbd.CH--, each of which is bound on the ring A in the ortho-position with respect to the --NHCO-- group to form a benzoxazolone, benzothiazolone, benzimidazolone or quinolone-2, with R.sub.3 and R.sub.4 being hydrogen or methyl, and m and n independently of one another are each 1 or 2, are useful as high-grade pigments, for pigmenting high-molecular weight organic material. The pigments are distinguished in particular by good fastness to light, migration and weather.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: September 25, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Stefan Hari
  • Patent number: 4220586
    Abstract: A monoazo pigment of the formula ##STR1## in which A is an aromatic radical containing a 5-membered or 6-membered hetero-ring which has a -CONH group bonded as part of the ring, R is an aromatic radical and B is a H atom, an alkoxy group having 1-4 C atoms, an aliphatic radical containing at most 6 C atoms, an aryl radical, an aralkyl group having 1-4 C atoms, an amino group, an alkylamino group or an arylamino group, which shows high tinctorial strength and good fastness to light, over-lacquering, migration, weathering and heat.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: September 2, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Armand Roueche, Stefan Hari
  • Patent number: 4070353
    Abstract: Diazo pigments of the formula ##STR1## wherein R denotes an alkyl, cycloalkyl, aralkyl, aryl or heterocyclic radical, X denotes a hydrogen or halogen atom, an alkyl or alkoxy group containing 1 to 4 carbon atoms, or a nitro, cyano, trifluoromethyl or carboxylic acid ester group, and Y denotes a hydrogen or halogen atom, an alkyl or alkoxy group containing 1 to 4 carbon atoms or a nitro, cyano, trifluoromethyl or carboxylic acid ester group, are useful for coloring plastics and printing inks in fast yellow to orange shades.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: January 24, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Karl Ronco
  • Patent number: 4065449
    Abstract: Disazo pigments of the formula ##STR1## WHEREIN A represents a carbocyclic or heterocyclic aromatic radical, in particular, those of the formula ##STR2## WHEREIN EACH OF X and Y represents a hydrogen or a halogen atom, an alkyl or alkoxy group of 1 to 6 carbon atoms, an aryloxy, trifluoromethyl, nitro, cyano, carboxylic ester or carboxy amide group, or wherein X and Y together represent a fused benzene ring are valuable pigments coloring plastics and lacquers in yellow to orange shades of excellent fastness properties.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: December 27, 1977
    Assignee: Ciba-Geigy Corporation
    Inventor: Georg Cseh
  • Patent number: 4062838
    Abstract: Disazo pigments of the formula ##STR1## wherein A denotes a phenylene or naphthylene radical, R denotes an aryl, alkyl or alkenyl group optionally substituted by halogen atoms, by hydroxyl, alkoxy or alkylmercapto groups containing 1-6 C atoms, by alkoxycarbonyl groups containing 2-6 C atoms or cyano, aryl, aryloxy, arylmercapto or heterocyclic radicals, or denotes a heterocyclic radical, and the X and Y denote H atoms or substituents which do not confer solubility in water are useful for coloring plastics lacquers and printing inks in yellow to orange shade of good fastness properties.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: December 13, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Stefan Hari
  • Patent number: 4055559
    Abstract: A disazo pigment of the formula ##STR1## WHEREIN X and Y are hydrogen, chlorine, alkyl of 1 - 4 C-atoms or one of X and Y can be alkoxy of 1 - 4 C-atoms and Z is chlorine or methyl, which is useful for pigmenting high molecular organic material and shows excellent fastness to light and weather.
    Type: Grant
    Filed: October 8, 1975
    Date of Patent: October 25, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Willy Mueller
  • Patent number: 3978038
    Abstract: New disazo pigments of the formula ##SPC1##R being hydrogen, halogen, alkyl, alkoxy, nitrile, trifluormethyl, aryloxy, phenylsulfonyl or benzoyl, m and n 1 or 2, X hydrogen, halogen, alkyl, alkoxy, nitro, nitrile, trifluormethyl or carboxylic acid ester are prepared. The compounds are useful for pigmenting high molecular weight organic materials such as polyamides, polyurethanes and polyesters.
    Type: Grant
    Filed: February 27, 1974
    Date of Patent: August 31, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Armand Roueche
  • Patent number: RE35359
    Abstract: Compounds of formula ##STR1## wherein a and b are each independently of the other halogen, --CH.sub.3, --C.sub.2 H.sub.5, --OC.sub.2 H.sub.5 or the group of formula --NHCO--C.sub.1 -C.sub.4 alkyl, c and d are each independently of the other hydrogen, halogen, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5 or the group of formula --NHCO--C.sub.1 -C.sub.4 alkyl, and R.sup.1 is --CH.sub.3, phenyl, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --NHCO--C.sub.1 --C.sub.4 alkyl or --CONH--C.sub.1 -C.sub.4 alkyl, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, unsubstituted or substituted by a chlorine atom or a --OH group, or are C.sub.7 -C.sub.9 aralkyl, C.sub.6 -C.sub.8 cycloalkyl, phenyl or phenyl which is substituted by 1 to 3 halogen atoms or methyl or methoxy groups, or is a heterocyclic radical of the benzimidazole, benzoxazole, benzthiazole or pyridine series, or R.sup.3 and R.sup.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: October 22, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Stefan Hari, Georg Cseh