At Least Three Azo Groups Attached Indirectly To Each Other By Nonionic Bonding Patents (Class 534/743)
  • Publication number: 20120123072
    Abstract: The invention provides compositions of matter, methods of their synthesis, and methods of their use in polymerization reactions. The compositions include polyfunctional initiators used to make star polymers when polymerized with monomers. The polyfunctional initiators are synthesized out of a multifunctional core with at least two functional groups and two or more initiator units bonded to the functional groups. The initiator units have two electron-withdrawing groups bonded to a central carbon atom and an azo group between the central carbon atom and the functional group. The polyfunctional initiators are particularly effective because when they decompose to form the radical core of a star polymer, the electron-withdrawing groups prevent the corresponding radical from forming any linear polymer contamination and only desired star polymers result.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 17, 2012
    Inventors: Pious V. Kurian, Jeffery M. Atkins, John D. Morris, William J. Ward
  • Publication number: 20080193660
    Abstract: [Problems] A compound of a black ink which has such excellent fastnesses of a recorded article as light fastness, ozone gas fastness and moisture fastness, excellent solubility, and storage stability as a recording liquid, when used for inkjet recording and writing tools, and an ink composition comprising the same are provided. [Method for solving the problems] An azo compound represented by the following Formula (1) or a salt thereof, and an ink composition comprising the same (wherein, each of R1, R2, R5, R6 and R7 independently represents a hydrogen atom, a carboxyl group, a sulfo group and the like, each of R3 and R4 independently represents a hydrogen atom, a sulfo group, a nitro group, a (C1 to C4) alkyl group (which may be substituted by a hydroxyl group or a (C1 to C4) alkoxy group), a (C1 to C4) alkoxy group (which may be substituted by a hydroxyl group, a (C1 to C4) alkoxy group, a sulfo group or a carboxyl group) and the like, and n represents 0 or 1, respectively).
    Type: Application
    Filed: November 10, 2005
    Publication date: August 14, 2008
    Inventors: Takahiko Matsui, Hiroaki Ohno, Yasuo Shirasaki
  • Patent number: 6043349
    Abstract: Tetrakisazo dyes of formula (I), as defined in claim 1, optionally in admixture with trisazo dyes of formula (X) as defined in claim 4, are valuable anionic dyes for the dyeing of substrates dyeable with anionic dyes, in particular for the dyeing of leather in very intense dark shades.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: March 28, 2000
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Jordi Berenguer
  • Patent number: 5994486
    Abstract: A fluorine-containing macroazo compound having a fluorine segment in the molecule is useful as a polymerization initiator for producing, for example, fluorine-containing block polymers.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: November 30, 1999
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Kazuo Shiraki, Nobutaka Shimamura
  • Patent number: 5051131
    Abstract: An azo pigment composition which forms a dispersion having high tinting strength and excellent clearness, transparency, fluidity and storage stability, and which is formed from a coupling reaction between a diazo component and a coupler component, and contains a compound represented by formula (I) ##STR1## wherein Q represents a diazo or coupler component moiety, A represents a divalent bonding group selected from a class consisting of --CONR'--, SO.sub.2 NR'--, --CH.sub.2 NH-- and --CH.sub.2 NHCOCH.sub.2 NH-- in which R' represents a hydrogen atom, alkyl group having 1 to 20 carbon atoms or aryl group,each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a hydrogen atom, alkyl group having 1 to 20 carbon atoms or alkenyl group having 2 to 20 carbon atoms, and R.sub.3 and R.sub.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: September 24, 1991
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Takahiro Yuasa, Kenzi Kitamura
  • Patent number: 4978747
    Abstract: Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to form an adduct that still contains at least two free NCO groups, and subsequently reacting this adduct with a (cyclo)aliphatic diamine, to form an adduct suitable for dyeing and pigmenting macromolecular substances, in particular for coloring PUR-based paints, coatings and laminates.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: December 18, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Arnold Weber, Hermann Henk, Klaus Kunde, Jochen Westphal, Klaus Wunderlich
  • Patent number: 4685934
    Abstract: Monoazo compounds of formula ##STR1## wherein R.sub.1 is a coupling component radical,R.sub.1 is C.sub.1-6 alkyl; C.sub.1-6 alkyl substituted by 1 or 2 substituents selected from chloro, cyano, hydroxy, C.sub.1-4 alkoxy, phenyl and phenyl substituted by 1 or 2 substituents selected from chloro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, carboxy, sulfo, sulfamoyl and acetamido; C.sub.5-7 cycloalkyl; C.sub.5-7 cycloalkyl substituted by 1 to 3 C.sub.1-4 alkyl groups; phenyl; phenyl substituted by 1 to 3 substituents selected from chloro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, acetamido (maximum of 1), carboxy (maximum of 1), sulfo (maximum of 1) and --SO.sub.2 NR.sub.7 R.sub.8 (maximum of 1); 1- or 2-naphthyl or 1- or 2-naphthyl substituted by sulfo,whereineach of R.sub.7 and R.sub.8 is independently hydrogen; C.sub.1-4 alkyl; C.sub.1-4 alkyl monosubstituted by hydroxy or phenyl; cyclohexyl; phenyl or phenyl monosubstituted by chloro, methyl or methoxy, or--NR.sub.7 R.sub.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: August 11, 1987
    Assignee: Sandoz Ltd.
    Inventors: Francois Benguerel, Roland Mislin
  • Patent number: 4600674
    Abstract: Disclosed is an electrophotographic photoconductive material excellent in sensitivity and durability which comprises an electroconductive substrate and, provided thereon, a photosensitive layer containing a trisazo pigment represented by the general formula ##STR1## wherein R's, which may be the same or different, represent each a hydrogen atom, halogen atom, substituted or unsubstituted alkyl group, alkoxyl group, or nitrile group; n is an integer of 1 or 2; and A represents ##STR2## wherein Z represents a group of atoms necessary to complete a substituted or unsubstituted aromatic carbon ring or a substituted or unsubstituted aromatic hetero-ring; X represents a hydrogen atom, an alkyl group, or a group of atoms necessary to complete a substituted or unsubstituted aromatic carbon ring, a substituted or unsubstituted aromatic hetero ring, or a substituted or unsubstituted hetero ring; m is 0 or 1; B represents a group of atoms necessary to complete a substituted or unsubstituted aromatic carbon ring, a subst
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: July 15, 1986
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Kazuhiro Emoto, Akira Itoh
  • Patent number: 4562247
    Abstract: There are described azo compounds of the formula ##STR1## wherein D.sub.1 and D.sub.2 are each the radical of a diazo component, R is C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 alkyl substituted by C.sub.1 -C.sub.4 -alkoxy or halogen or is phenyl or phenyl substituted by C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 alkoxy, and Y is a basic or cationic group. These azo compounds can be used as dyes for dyeing and printing natural and synthetic, cationically dyeing substrates, particularly textile materials and paper.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: December 31, 1985
    Assignee: Ciba Geigy Corporation
    Inventor: Visvanathan Ramanathan
  • Patent number: RE38531
    Abstract: Tetrakisazo dyes of formula (I), as defined in claim 1, optionally in admixture with trisazo dyes of formula (X) as defined in claim 4, are valuable anionic dyes for the dyeing of substrates dyeable with anionic dyes, in particular for the dyeing of leather in very intense dark shades.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: June 8, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Jordi Berenguer