Patents Represented by Attorney Tyler A. Stevenson
  • Patent number: 7790897
    Abstract: The invention describes novel compound of the formula I, wherein the general symbols are as defined in claim 1, as stabilizers for protecting organic materials, in particular synthetic polymers, against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: September 7, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Hans-Rudolf Meier, Gerrit Knobloch
  • Patent number: 7790807
    Abstract: The instant invention relates to new compounds of the formula I R1 and R2 are each independently of the other a fluorine containing group, R3 and R4 are each independently of the other hydrogen, a fluorine containing group, C1-C12alkyl, phenyl or R4, together with the carbon atom to which they are bonded, form a C5-C8-cycloalkylidene ring that is unsubstituted or substituted by from 1 to 3 C1-C4alkyl groups; R5, R6, R7 and R8 are each independently of the other hydrogen, C1-C12alkyl or C3-C12alkenyl, X1 and X2 are each independently of the other a direct bond or C1-C12alkylene, m is 1 to 10,000, and n is 0 to 10,000. These new compounds of the formula I are useful as reducers of surface energy for organic materials such as polycarbonates, polyesters or polyketones or their mixtures, blends or alloys.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: September 7, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Martin Brunner, Archana Kishore Desai, Shrirang Bhikaji Hindalekar, Suhas Dattatraya Sahasrabudhe, Armin Schneider, Paragkumar Nathalal Thanki, Michael Tinkl, Alessandro Zedda, Michèle Gerster, Fabien Jean Brand
  • Patent number: 7789957
    Abstract: Solid, low dust pigment compositions are formed i by mixing pigments with certain polymer stabilizers under conditions wherein the stabilizers are in a liquefied state. The pigment compositions are easily handled and have a high color yield when incorporated into polymer substrates. In many cases, the color development attained is not readily achievable using pigment compositions comprising conventional carriers.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: September 7, 2010
    Assignee: Ciba Corporation
    Inventors: John Adams, Roger Reinicker, Damien Thurber Cole, Gerard Finnegan
  • Patent number: 7786313
    Abstract: The present invention relates to a process for the preparation of a mixture comprising at least two structurally different diketopyrrolopyrrole pigments of formula wherein A1 and A2 are each independently of the other an aromatic or heteroaromatic radical, by reacting a succinic acid ester with at least one unsubstituted or substituted aromatic or heteroaromatic nitrile, which process comprises carrying out the reaction in the presence of at least one compound of formula wherein A is an aromatic or heteroaromatic radical, R3 is hydrogen, halogen, methyl, methoxy, —CF3 or —CN, R4 is a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, X is —S—, —O—, —CR5R5?—, —COO—, —CONR5—, —SO—, SO2—, —SO2NR5— or —NR5— and R5 and R5? are each independently of the other hydrogen or a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, to the use of such a mixture in the coloring of organic material and in cosmetics, and al
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: August 31, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Olof Wallquist, Roman Lenz, Leonhard Feiler, Mathias Düggeli, Taher Yousaf, Gerardus De Keyzer
  • Patent number: 7786199
    Abstract: Organic polymer compositions can be made flame-retardant by addition of selected organic phosphate and other components, such as known flame-retardants or conventional additives for further improvements, e.g. in flame retardancy or light stability.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: August 31, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Jean-Roch Pauquet, Grant Leslie, Natacha Berthelon, Daniel Müller
  • Patent number: 7785375
    Abstract: Disclosed is a method of dyeing keratin-containing fibers comprising treating the fiber with at least one compound of formula (1), wherein R1, R2, R3, R4 independently from each other are hydrogen; hydroxy; —S—H; —S—C1-C12alkyl; halogen; C1-C12alkyl or C1-C12alkoxy, which may be substituted by one or more C1-C5alkyl, C1-C5-alkoxy, hydroxy, —(CO)—H or —(CO)—C1-C5alkyl; —NR5R6; —NO2; —(CO)H or (CO)—C1-C5alkyl; C6-C12aryl, C6-C12aryl-C1-C4alkyl or C6-C12aryl-C1-C4alkoxy, wherein the aryl moiety may be substituted by one or more C1-C5alkyl, C1-C5alkoxy, —(CO)—H or —(CO)—C1-C5alkyl; R5 and R6 independently from each other are hydrogen; hydroxy; C1-C12alkyl; hydroxy-C1-C12alkyl; —(CO)—H; —(CO)—C1-C5alkyl; phenyl or phenyl-C1-C5alkyl, wherein the phenyl moiety may be substituted by one or more C1-C5alkyl, C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2, carboxy or hydroxy; and An is an anion.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: August 31, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Victor Paul Eliu, Beate Fröhling, Dominique Kauffmann
  • Patent number: 7780775
    Abstract: The invention pertains to a novel, simpler dry-milling method for comminuting crude pigments (especially crude phthalocyanines) for use in offset inks, wherein a high amount of resin is used, at least part of which is a low molecular phenol-modified rosin, an esterified rosin or a hydrocarbon resin of similar properties, preferably together with an antioxidant, and dry-milling is performed at relatively low temperature. The invention also pertains to the thus obtained, new compositions, which are extraordinarily easily dispersible in hydrocarbon solvents, and their use for the preparation of inks or ink concentrates. Pigment dispersions obtained from the preferred compositions are also claimed.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 24, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Thomas Healy, David Cameron
  • Patent number: 7771548
    Abstract: Disclosed is a quenching medium for treating a heated metal part, said medium comprising water and a polyacrylate terpolymer comprising acrylamide and/or methacrylamide monomer units, acrylic acid and/or methacrylic acid monomer units and alkyl alkoxylate allyl ether monomer units where the acid groups are in the form of an alkali metal salt and where the alkyl alkoxylate allyl ether monomers are of the formula where n is an integer from 1 to about 30, R is ethylene, propylene or butylene and G is an alkyl group of 8 to 30 carbon atoms. Also disclosed is a method for quenching a heated metal part, which process comprises immersing said metal part in the quenching medium. Also disclosed are the polyacrylate ternary copolymers.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: August 10, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Robert Cockcroft, David Petty, Frank J. L. Leroy, Francis Mark Prince, Nils Hoeck, Paul Guedj
  • Patent number: 7759043
    Abstract: Compounds of the formula (I), wherein R1, R2 and R10 independently of one another are C1-C20alkyl, phenyl, C1-C12alkylphenyl or phenyl-C1-C6alkyl; R3 and R4 independently of one another are hydrogen, C1-C20alkyl, NR6R7 or SR8, provided that at least one of R3 or R4 is NR6R7 or SR8; R5 is hydrogen or C1-C20alkyl; R6 and R7 independently of one another are C1-C20alkyl, or R6 and R7 together with the N-atom to which they are attached form a 5 or 6 membered ring, which optionally is interrupted by O, S or NR9 and which optionally additionally is substituted by one or more C1-C4alkyl; R8 is phenyl, biphenylyl, naphthyl, anthryl or phenanthryl, all of which optionally are substituted by one or more C1-C4alkyl; and R9 is hydrogen, C1-C20alkyl, C2-C4hydroxyalkyl or phenyl; exhibit an unexpectedly good performance in photopolymerization reactions.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: July 20, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Junichi Tanabe, Kazuhiko Kunimoto, Hisatoshi Kura, Hidetaka Oka, Masaki Ohwa
  • Patent number: 7754273
    Abstract: The present invention relates to a method of printing a substrate, comprising (a) printing onto the substrate at least one time temperature indicator with chromic properties based on an azo coupling reaction between a capped diazonium component and a coupling component.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: July 13, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Hans Reichert, Bernhard Müller
  • Patent number: 7754863
    Abstract: The invention accordingly relates to an optical recording medium comprising a substrate, a reflecting layer and a recording layer, wherein the recording layer comprises a compound of formula (I) or a mesomeric or a tautomeric form thereof, wherein M1 is a metal cation in the oxidation state +3, a hydroxy or halogeno metal group wherein the metal is in the oxidation state +4, or an oxo metal group wherein the metal is in the oxidation state +5; (III) and (IV)are each independently of the other (V), (VI) or (VII); (VIII) is (IX), (X), (XI), (XII), (XIII), or (XIV); (XV) is (XVI) or C2-C8heteroaryl unsubstituted or mono- or poly-substituted by R10, R11, R12 and/or R13; Q1 is N or CR18, Q2 is N or CR19, Q3, Q5 and Q7 are each independently of the other CR20R21, O, S or NR22, Q4 is CR16 or N and Q6 is CR17 or N; and R2 and/or R6 are O, S or NR33. Please see the disclosure for the other substituents which are less relevant.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: July 13, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Jean-Pierre Bacher, Gisèle Baudin, Frédérique Wendeborn, Jean-Marie Adam, Urs Lehmann, Jean-Luc Birbaum
  • Patent number: 7740743
    Abstract: A polymer comprising i) a synthetic polymeric component that has been formed from an ethylenically unsaturated water-soluble or potentially water-soluble monomer and an ethylenically unsaturated monomer carrying a reactive group, wherein the reactive group is directly reactive with a cellulose binding domain protein; and ii) a protein component consisting of a cellulose binding domain protein, wherein the cellulose binding domain protein. The polymer is particularly suitable as a dry strength resin in a paper making process. It can also be used as a wet strength resin, internal sizing agent or surface sizing agent.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 22, 2010
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Michael Singh, Fritz Herren, Christina Northfleet, Robert Cockcroft, Kenneth Symes, Simon Donnelly, Andrew McCann, Valerie Reynolds
  • Patent number: 7723412
    Abstract: The instant invention discloses a nanocomposite material comprising (a) a synthetic polymer, (b) a natural or synthetic phyllosilicate or a mixture of such phyllosilicates in nanoparticles, (c) a phenolic antioxidant and/or a processing stabilizer, and (d) a mono or polyfunctional compound selected from the class consisting of the epoxides, oxazolines, oxazolones, oxazines, isocyanates and/or anhydrides.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hendrik Wermter, Rudolf Pfaendner
  • Patent number: 7723494
    Abstract: The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Lennartz, Adolf Käser, Sandra Weiss
  • Patent number: 7723409
    Abstract: The invention describes a composition comprising a) a naturally occurring or synthetic elastomer susceptible to oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation, b) a white reinforcing filler, and c) as coupling agent, at least one compound of the formula (I) wherein the general symbols are as defined in claim 1, or an oligomeric hydrolysis product of the compound of the formula (I).
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chem. Corp.
    Inventors: Francesco Fuso, Michèle Gerster, Gerrit Knobloch, Pierre Rota-Graziosi
  • Patent number: 7691929
    Abstract: The present invention is directed a method of flame retarding a polymeric substrate using a specific group of azo and peroxide derivatives as flame retardants, to flame retardant compositions as well as to novel azo compounds usable as flame retarding compounds.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: April 6, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Nicolas Ronan, Carl-Eric Magnus Wilën
  • Patent number: 7692034
    Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XIX wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group, and Rb is a carboxy-protective group.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: April 6, 2010
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Reinhold Öhrlein, Gabriele Baisch, Hans Jürg Kirner, Frank Bienewald, Stephan Burkhardt, Martin Studer
  • Patent number: 7686850
    Abstract: Disclosed are nitro-sulfide dyes of formula (1), their salts, isomers, hydrates and other solvates, wherein R1, R2, R3, independently from each other are hydrogen; C1-C20alkyl or C1-C20alkoxy, which may be substituted by one or more C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2 or hydroxy; C3-C6cycloalkyl; —C(O)H; —C(O)—C1-C5alkyl; —C(O)OH; —C(O)O—C1-C5alkyl; halogen; NO2; OH; SH; phenyl, which may be substituted by one or more C1-C5alkyl, C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2 or hydroxy; or a radical of formula (1a) —NR4R5, wherein R4 and R5 independently from each other are hydrogen; C1-C12alkyl, which may be substituted by one or more C1-C5alkyl, C1-C5-alkoxy, hydroxy or —(CO)—H; —(CO)—C1-C5alkyl; phenyl or phenyl-C1-C4alkyl, wherein the phenyl moiety may be substituted by one or more C1-C5alkyl, C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2, carboxy or hydroxy; or a radical of formula (2); wherein at least one o
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: March 30, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Christian Cremer, Olof Wallquist
  • Patent number: 7683202
    Abstract: The invention relates to novel compounds of the formula I, II; III or IV wherein the general symbols are as defined in claim 1. These compounds are useful as surface modifiers for polymers in order to improve resistance to fog formation or water and oil repellency.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: March 23, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Piero Piccinelli, Manuele Vitali, Andrea Landuzzi, Giovanni Da Roit, Primo Carrozza, Markus Grob, Nicola Lelli
  • Patent number: 7683144
    Abstract: The present invention relates to a process and composition for the chain stopping of vinyl chloride polymerization or copolymerization in the presence of a stable free nitroxyl radical and a phenolic antioxidant. A further subject of the invention is the use of a stable free nitroxyl radical together with a phenolic antioxidant as a chain stopping mixture for the vinyl chloride polymerization or copolymerization. A further aspect of the invention is the use of higher sterically hindered nitroxyl radicals alone as chain stopping agents for the vinyl chloride polymerization.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: March 23, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rudolf Pfaendner, Alex Wegmann, Thomas Wannemacher, Dietrich Braun