Patents by Inventor Athanassios Tzikas

Athanassios Tzikas 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).

  • Publication number: 20070113356
    Abstract: A reactive polysaccharide derivative of formula (1a) or (1b), in which A is —O—, —S— or (1c), Q1 is hydrogen, the radical —B—A—Z, C1-C10aryl which is unsubstituted or substituted, C1-C12alkyl which may be interrupted by oxygen and is unsubstituted or substituted, Q2 and Q3 are each independently of the other hydrogen, C1-C12aryl which is unsubstituted or substituted, C1-C12alkyl which may be interrupted by oxygen and is unsubstituted or substituted, B is an aliphatic or aromatic bridge member, Z1 and Z2 are each independently of the other a reactive radical of the vinylsulfonyl series, the haloacryloyl series or the heterocyclic series, PS is a polysaccharide radical, m is 0, 1 or an integer greater than 1, n is 1 or an integer greater than 1, and the sum of n+m corresponds to the original number of hydroxy groups in the polysaccharide molecule, is useful as a finishing agent for textile fibers and for other applications.
    Type: Application
    Filed: December 8, 2004
    Publication date: May 24, 2007
    Applicant: CIBA SPECIALTY CHEMICALS CORP.
    Inventors: Veronique Hall-Goulle, Athanassios Tzikas
  • Patent number: 7211609
    Abstract: The invention provides a composition comprising particles of an optionally halogenated phthalocynine (a); from 0.5 to 10% weight, preferably from 2 to 8% by weight, based on the optionally halogenated phthalocyanine (a), or a vinylic or acrylic polymer (b); and from 1 to 15% by weight, preferably from 3 to 10% by weight, based on the optionally halogenated phthalocyanine (a), of an optionally halogenated phthalocyanine (c) which is outside the particles of the optionally halogenated phthalocyanine (a) and is substituted by a group comprising at least 1 hetero atom selected from the group consisting of N, O, S and P and at least 3 carbon atoms. The instant compositions comprising three essential components are surprisingly warpfree in substrate such as partially crystalline plastics, especially those processed by injection moulding. Geometrically identical parts of different colours are obtained.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: May 1, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Philippe Bugnon, Athanassios Tzikas, Hubert Jean Luc Christnacher, Thomas Healy
  • Publication number: 20070032641
    Abstract: Dye mixtures comprising at least one dye of formula (1) together with at least one dye from the group of formulae (2a) and (2b), wherein the radicals are as defined in the claim, are suitable for dyeing or printing cellulosic fibre materials while having a good build-up behaviour and yield dyeings of a deep shade having good fastness properties.
    Type: Application
    Filed: October 11, 2004
    Publication date: February 8, 2007
    Inventors: Athanassios Tzikas, Georg Roentgen, Laszlo Fekete
  • Publication number: 20070000076
    Abstract: The invention relates to a process for printing or dyeing cellulose fibres or cellulose/polyester mixed fibres characterised in that the fibres are treated in any sequence with water, a watersoluble organic solvent having a boiling point >150° C. and a specific disperse dye.
    Type: Application
    Filed: August 30, 2004
    Publication date: January 4, 2007
    Inventors: Veronique Hall-Goulle, Athanassios Tzikas
  • Patent number: 7122667
    Abstract: Reactive dyes of formula (1) wherein Q1, Q2, Q3 and Q4 are each independently of the others hydrogen or unsubstituted or substituted C1–C4alkyl, A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, D is the radical of a diazo component, of the benzene or naphthalene series, X is halogen, 3-carboxpyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C1–C4alkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C1–C4alkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, and Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fibre materials.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: October 17, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Bernhard Müller
  • Publication number: 20060207038
    Abstract: Dye mixtures comprising at least one dye of formula together with at least one dye of formula wherein the radicals indicated in the formulae are defined in accordance with the claims, are suitable for dyeing or printing cellulosic fibre materials with good build-up behaviour and yield dyeings of a deep shade having good fastness properties.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 21, 2006
    Inventors: Athanassios Tzikas, Georg Roentgen
  • Publication number: 20060191082
    Abstract: Dye mixtures comprising a reactive dye having at least one structural unit of formula (1) together with a reactive dye of formula (2), wherein (Q1)0-3 and (Q2)0-3 each independently of the other denote from 0 to 3 identical or different substituents selected from the group halogen, C1-C4alkyl, C1-C4alkoxy, carboxy and sulfo, Z1 and Z2 are each independently of the other a fibre-reactive radical, at least one fibre-reactive radical being contained in the dye of formula (1) and the dye of formula (2) containing at least one fibre-reactive radical Z1 or Z2, are suitable for dyeing cellulosic or nitrogen-containing fibre materials.
    Type: Application
    Filed: January 27, 2004
    Publication date: August 31, 2006
    Inventors: Athanassios Tzikas, Georg Roentgen, Herbert Klier
  • Publication number: 20060185100
    Abstract: Reactive dyes of formula (1) wherein R1, R2, R3 and R4 are each independently of the others hydrogen or unsubstituted or substituted C1-C4alkyl, (R5)s denotes s identical or different substituents selected from the group halogen, sulfo, carboxy, C1-C4alkyl and C1-C4alkoxy, B is an aliphatic bridging member, X1 and X2 are halogen, r is an integer from 0 to 2, s is an integer from 0 to 3, and n and m are each independently of the other a number 1 or 2, and Z is a fibre-reactive group of formula —SO2—Y (2a), —NH—CO—(CH2)K—SO2—Y (2b), —CONH—(CH2)I—SO2—Y (2c), —NH—CO—CH(Hal)-CH2-Hal (2d) or —NH—CO—C(Hal)=CH2 (2e) wherein Hal is chlorine or bromine, k and I are each independently of the other a number 2, 3 or 4, and Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions are suitable for dyeing cellulosic or amide-group-containing fibre materials.
    Type: Application
    Filed: March 17, 2004
    Publication date: August 24, 2006
    Inventor: Athanassios Tzikas
  • Patent number: 7087730
    Abstract: Reactive dyes of formula (I), wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, Q1, and Q2 are each independently of the other hydrogen or unsubstituted or substituted C1–C4alkyl, (Q3)n denotes n substituents selected from the group C1–C4alkyl, C1–C4alkoxy, halogen and sulfo, X is halogen, 3-carboxypyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C1–C4alkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C1–C4alkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, k is a number 2, 3, 4, 5 or 6, m is a number 0 or 1, and n is a number 0, 1 or 2, with the proviso that when A denotes a monoazo chromophore it is not directly linked to the triazinyl radical through a hydroxyna
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: August 8, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Bernhard Müller, Georg Roentgen
  • Patent number: 7057024
    Abstract: Black-dyeing aqueous inks comprising 20 to 95% by weight of at least one dye (A), together with 5 to 80% by weight of at least one dye chosen from the group consisting of (B) and (C), based on the total weight of the dyes (A), (B) and (C) in the ink, and 1 to 40% by weight of a water-miscible organic solvent, based on the total weight of the ink, the dye (A) containing, as the colouring part of the molecule, one or more radicals of the formula (I), (II), (III) or (IV) the dye (B) containing, as the coloring part of the molecule, one or more mono- or disazo radicals containing sulfo groups or one or more radicals of the formula (V), (VI), (VII) or (VIII) and the dye (C) containing, as the coloring part of the molecule, one or more mono- or disazo radicals containing sulfo groups or one or more radicals of the abovementioned formula (V), (VI), (VII) or (VIII) and one or more radicals of the abovementioned formula (I), (II), (III) or (IV), in which (G)0-2 is 0 to 2 identical or different substituen
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: June 6, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Urs Lehmann, Athanassios Tzikas, Marcel Frick
  • Patent number: 7038024
    Abstract: Reactive dyes containing at least one structural unit of formula (I), wherein Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fiber materials.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: May 2, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Bernhard Müller
  • Patent number: 7029502
    Abstract: The present invention relates to an azo dye of formula wherein D is the radical of a diazo component of the benzene, naphthalene, diphenyl, thiophene, benzothiazole, benzisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, anthraquinone, naphthalic acid imide, chromone, phthalimide or diphenylene oxide series, R1 is an unsubstituted or substituted aryl radical and R2 is an unsubstituted or substituted aryl radical, with the exception of the compounds of formulae (1a) and (1b) to a process for its preparation and to its use in a process for the production of mass-colored plastics or polymeric color particles, and in the dyeing or printing of semi-synthetic or synthetic hydrophobic fiber materials.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: April 18, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Antoine Clément, Anton Andreoli, Urs Lauk, Athanassios Tzikas
  • Patent number: 7030229
    Abstract: The present invention relates to an azo dye of formula I, II or III: (formula I, II or III); wherein R1 and R2 are each independently of the other one or more divalent groups selected from alkylene, arylene, aralkylene and cycloalkylene, which may be interrupted by —O—, —S—, —NH—, —NR8—, —COO—, —CONH— or —CONR9—, wherein R8 and R9 are alkyl or aryl, X is —O— or —NH—, R3 is —CN or —CONH2, R4 is methyl or trifluoromethyl and R5, R6, R7 and R8 are each independently of the others hydrogen, halogen or —CN, to a process for the preparation thereof and to the use thereof in a method of producing mass-colored plastics or polymeric color particles.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: April 18, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Antoine Clément, Urs Lauk
  • Publication number: 20050241080
    Abstract: Reactive dyes of formula (I), wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, Q1, and Q2 are each independently of the other hydrogen or unsubstituted or substituted C1,-C4alkyl, (Q3)n denotes n substituents selected from the group C1,-C4alkyl, C1-C4alkoxy, halogen and sulfo, X is halogen, 3-carboxypyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C1-C4alkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C1-C4alkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, k is a number 2, 3, 4, 5 or 6, m is a number 0 or 1, and n is a number 0, 1 or 2, with the proviso that when A denotes a monoazo chromophore it is not directly linked to the triazinyl radical through a hydroxy
    Type: Application
    Filed: July 15, 2003
    Publication date: November 3, 2005
    Inventors: Athanassios Tzikas, Bernhard Muller, Georg Roentgen
  • Patent number: 6953845
    Abstract: Reactive dyes of formula wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, R1, R2 and R3 are each hydrogen or unsubstituted or substituted C1-C4alkyl, X1 and X2 are halogen, B is an organic bridging member, T is a reactive radical as defined herein and V1 and V2 are each independently of the other N, C—H, C—Cl or C—F, give prints that are distinguished by brilliant color shades and good all-round properties.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: October 11, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Hans Reichert, Herbert Klier
  • Patent number: 6953846
    Abstract: The present invention relates to pyrifone azo dyes of formula (1), wherein A is the radical of a diazo component of the benzene, naphthalene, diphenyl, azobenzene, thiophene, benzothiazole, benzoisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, anthraquinone, naphttholic acid imide, chromone, phthalimide or diphenylene oxide series, R1 is hydrogen, unsubstituted or hydroxyl- or phenyl-substituted C1-C6alkyl, it being possible for the alkyl chain to be interrupted from C3 upwards by one or more oxygen atoms, or has the meanings of R2, R2 is a radical of formulae (2), (3), (4), (5), (6), or (7), wherein B is a bridging member, R4 is alkyl or aryl, R5 and R6 are each independently of the other alkyl, aryl or heteroaryl and A is as defined for formula (1), or R1 and R2 toghether with the nitrogen atom in NR1R2 form a heterocyclic ring, Y is cyano, —CONH2 or CH2SO3H, and n is an integer from 2 to 6, to a process for their preparation and to their use in the production coloured plastics or polymeric colo
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: October 11, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Urs Lauk, Romeo Dreier, Antoine Clément
  • Publication number: 20050197432
    Abstract: The invention provides a composition comprising particles of an optionally halogenated phthalocynine (a); from 0.5 to 10% weight, preferably from 2 to 8% by weight, based on the optionally halogenated phthalocyanine (a), or a vinylic or acrylic polymer (b); and from 1 to 15% by weight, preferably from 3 to 10% by weight, based on the optionally halogenated phthalocyanine (a), of an optionally halogenated phthalocyanine (c) which is outside the particles of the optionally halogenated phthalocyanine (a) and is substituted by a group comprising at least 1 hetero atom selected from the group consisting of N, O, S and P and at least 3 carbon atoms. The instant compositions comprising three essential components are surprisingly warpfree in substrate such as partially crystalline plastics, especially those processed by injection moulding. Geometrically identical parts of different colours are obtained.
    Type: Application
    Filed: June 12, 2003
    Publication date: September 8, 2005
    Inventors: Philippe Bugnon, Athanassios Tzikas, Hubert Jean Christnacher, Thomas Healy
  • Publication number: 20050182247
    Abstract: The present invention relates to an azo dye of formula I, II or III: (formula I, II or III); wherein R1 and R2 are each independently of the other one or more divalent groups selected from alkylene, arylene, aralkylene and cycloalkylene, which may be interrupted by —O—, —S—, —NH—, —NR8—, —COO—, —CONH— or —CONR9—, wherein R8 and R9 are alkyl or aryl, X is —O— or —NH—, R3 is —CN or —CONH2, R4 is methyl or trifluoromethyl and R5, R6, R7 and R8 are each independently of the others hydrogen, halogen or —CN, to a process for the preparation thereof and to the use thereof in a method of producing mass-coloured plastics or polymeric colour particles.
    Type: Application
    Filed: May 27, 2003
    Publication date: August 18, 2005
    Inventors: Athanassios Tzikas, Antoine Clement, Urs Lauk
  • Patent number: 6906195
    Abstract: The present invention relates to pyridone dyes of formula (1), wherein R is a radical —(CR?H)n—W, R? is hydrogen, C1-C2alkyl or phenyl, Y is cyano, —CONH2 or —CH2SO3H, W is hydrogen, a radical —NR1R2 or a radical —OR3, R1 and R2 are each independently of the other hydrogen, unsubstituted or hydroxy- or phenyl-substituted C1-C6-alkyl, it being possible for the alkyl chain from C3 upwards to be interrupted by one or more oxygen atoms, or a radical of formula (3), (4) or (5), or R1 and R2 together with the nitrogen atom in —NR1R2 form a heterocyclic ring, R3 is hydrogen, unsubstituted or hydroxy-substituted C1-C6alkyl, phenyl or a radical of formula (6), R4 is alkyl or aryl, R5 and R6 are each independently of the other alkyl, aryl or heteroaryl, n is an integer from 2 to 6, and m is an integer from 1 to 6, a process for the preparation thereof and their use in the production of coloured plastics or polymeric colour particles
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: June 14, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Athanassios Tzikas, Urs Lauk, Romeo Dreier, Antoine Clément
  • Publication number: 20040261199
    Abstract: Reactive dyes of formula (U) wherein Q1, Q2, Q3 and Q4 are each independently of the others hydrogen or unsubstituted or substituted C1-C4alkyl, A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, D is the radical of a diazo component, of the benzene or naphthalene series, X is halogen, 3-carboxpyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C1-C4alkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C1-C4alkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, and Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fibre materials.
    Type: Application
    Filed: May 3, 2004
    Publication date: December 30, 2004
    Inventors: Athanassios Tzikas, Bernhard Muller