Patents Assigned to Ciba Corporation
  • Publication number: 20150056554
    Abstract: Compounds of formula (I), (II), and (III), wherein R1, R2, R?2 and R??2 for example are C1-C20alkyl, provided that at least one of R1, R2, R?2 and R??2 carries a specified substituent; R3, R4, and R5 for example independently of one another are hydrogen or a defined substituent provided that at least one of R3, R4 or R5 is other than hydrogen or C1-C20alkyl; R6, R7, R8, R?7, RV, R?8, R?6, R?7, R??6 and R??7 for example independently of one another have one of the meanings as given for R3, R4, and R5; and R9 for example is C1-C20alkyl; exhibit an unexpectedly good performance in photopolymerization reactions.
    Type: Application
    Filed: November 7, 2014
    Publication date: February 26, 2015
    Applicant: CIBA CORPORATION
    Inventors: Akira Matsumoto, Junichi Tanabe, Hisatoshi Kura, Masaki Ohwa
  • Patent number: 8916236
    Abstract: The invention relates to a method of forming (rutile) titanium dioxide-coated platelet-like pigments in which hydrous titanium dioxide is deposited on platelet-like particles followed by calcining, comprising (a) effecting the titanium deposit in the presence of an ?-hydroxy carboxylic acid, especially glycolic acid, or oxalic acid, and an amino acid, especially glycine, alanine, valine, aspartic acid (?-, ?- and ?-form); or an amino acid; to the pigments obtained by the method and the use thereof. The method can work in the absence of exogenous metal and Ti(III). The rutile TiO2-coated substrate of the present invention has at least the same advantages and characteristics of a tin containing product which includes luster, color, color homogeneity and few small particle formation during manufacture.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: December 23, 2014
    Assignee: Ciba Corporation
    Inventor: Patrice Bujard
  • Patent number: 8911921
    Abstract: Compounds of formula (I), (II), and (III), wherein R1, R2, R?2 and R??2 for example are C1-C20alkyl, provided that at least one of R1, R2, R?2 and R??2 carries a specified substituent; R3, R4, and R5 for example independently of one another are hydrogen or a defined substituent provided that at least one of R3, R4 or R5 is other than hydrogen or C1-C20alkyl; R6, R7, R8, R?7, RV, R?8, R?6, R?7, R??6 and R??7 for example independently of one another have one of the meanings as given for R3, R4, and R5; and R9 for example is C1-C20alkyl; exhibit an unexpectedly good performance in photopolymerization reactions.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: December 16, 2014
    Assignee: Ciba Corporation
    Inventors: Akira Matsumoto, Junichi Tanabe, Hisatoshi Kura, Masaki Ohwa
  • Patent number: 8900779
    Abstract: The invention relates to a color filter composition comprising a) a photoresist binder, b) a transparent pigment, c) optionally a solvent and/or optionally a photoinitiator or a photolatent catalyst, d) a dispersant which is a polymer or copolymer obtainable by a process comprising the steps of a1) polymerizing in a first step one or more ethylenically unsaturated monomers in the presence of at least one nitroxylether having the structural element wherein X represents a group having at least one carbon atom and is such that the free radical X derived from X is capable of initiating polymerization; or a2) polymerizing in a first step one or more ethylenically unsaturated monomers in the presence of at least one stable free nitroxyl radical and a free radical initiator; wherein at least one monomer used in the steps a1) or a2) is a C1-C6 alkyl or hydroxy C1-C6 alkyl ester of acrylic or methacrylic acid; and a second step b) comprising the modification of the polymer or copolymer prepared under a1) or a2) by a t
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: December 2, 2014
    Assignee: Ciba Corporation
    Inventors: Carsten Schellenberg, Clemens Auschra, Masaki Ohwa, Junichi Tanabe, Mamiko Takesue
  • Patent number: 8784984
    Abstract: A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 22, 2014
    Assignee: Ciba Corporation
    Inventor: Bryan David Grey
  • Patent number: 8591994
    Abstract: The present invention provides a process for coating the surface of a substrate comprises the following steps (i) oxidizing the surface of the substrate (ii) applying a composition comprising one or more quaternary ammonium compounds carrying one or more ethylenically unsaturated groups onto the oxidized surface of the substrate and (iii) curing the composition in order to form a coating layer, and substrates obtainable by the latter process.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: November 26, 2013
    Assignee: Ciba Corporation
    Inventors: Ted Deisenroth, Carmen Hendricks-Guy, Andreas Mühlebach, Andrea Preuss, Werner Hölzl, Xinyu Huang
  • Publication number: 20120093896
    Abstract: The invention describes the use of a nanodispersion, which comprises: a) a membrane-forming molecule, b) a co-emulsifier, c) a lipophilic component, and d) a water-soluble ingredient sensitive to oxidation in cosmetic end formulations, the nanodispersion being obtainable by (?) mixing the components (a), (b) and (c) until a homogeneous liquid is obtained (so-called nanodispersion pre-phase), and (?) adding the water or aqueous phase (discontinuous phase) which contains the water-soluble ingredient and optionally the non-aqueous polar organic solvent to the liquid obtained in step (?). Component (d) is preferably ascorbic acid or vitamin C.
    Type: Application
    Filed: July 22, 2008
    Publication date: April 19, 2012
    Applicant: CIBA CORPORATION
    Inventors: Sébastien Mongiat, Julie Grumelard, Werner Baschong, Bernd Herzog
  • Patent number: 8030435
    Abstract: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: October 4, 2011
    Assignee: Ciba Corporation
    Inventors: Paul Odorisio, Stephen M. Andrews, Thomas F. Thompson, Si Wu, Paragkumar Thanki, Deepak M. Rane, Delina Joseph, Jianzhao Wang
  • Patent number: 8013162
    Abstract: Sterically hindered hydroxy substituted alkoxyamine stabilizer compounds are made water compatible via certain backbones with affinity towards water. The sterically hindered amines are for example of formulae (5)-(7) These compounds are particularly effective in stabilizing aqueous polymer systems against the deleterious effects of oxidative, thermal and actinic radiation. The compounds are effective for example in stabilizing water borne coatings, aqueous inks, aqueous ink jet media and photocured aqueous systems.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: September 6, 2011
    Assignee: Ciba Corporation
    Inventors: Mervin G. Wood, Robert Detlefsen, James Galbo, Wanda Martin, Paul Kondracki, Michael P. DiFazio, Joseph E. Babiarz
  • Patent number: 7977425
    Abstract: A pigment composition comprising an intimate mixture of an organic pigment and fumed silica is prepared which exhibit improved coloristic characteristics including excellent chroma, color strength and enhanced color flop when incorporated into in polymeric systems, such as plastics or surface coatings, for example inks and paints. Also provided are coating compositions and plastic articles that are pigmented with a tinctorially effective amount of the inventive pigment composition. A particular embodiment of the invention relates to pigments useful in automotive coatings.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: July 12, 2011
    Assignee: Ciba Corporation
    Inventors: Tapan K. Debroy, James Will
  • Publication number: 20110155671
    Abstract: The present invention relates to a process of concentrating an aqueous suspension of solid particles comprising the steps of adding at least one organic polymeric flocculant to the suspension thereby forming flocculated solids in which the flocculated solids are allowed form a layer of solids and thereby forming a more concentrated suspension in which the process comprises the addition of an effective amount of an agent that is selected from the group consisting of free radical agents, oxidising agents, enzymes and radiation, in which the agent is applied to the suspension prior to or substantially simultaneously with adding the organic polymeric flocculant and/or the organic polymeric flocculant is added to the suspension in a vessel and the agent is applied to the suspension in the same vessel. The process is particularly suitable for solids liquid separation in which the flocculated solids are allowed to settle by sedimentation in a gravity thickener.
    Type: Application
    Filed: January 4, 2007
    Publication date: June 30, 2011
    Applicant: CIBA CORPORATION
    Inventors: Gillian Moody, Anthony Allen, Stephen Adkins, Brian Dynond, Paul Stocks
  • Publication number: 20110105676
    Abstract: The invention relates to a process for preparing platelet-like pigments comprising a core and at least one coating layer consisting essentially of a compound having from 60 to 95% by weight of carbon and from 5 to 25% by weight of nitrogen, the balance to 100% being selected from elements of the group consisting of hydrogen, oxygen and sulfur, comprising the steps of: (a) suspending plateletlike particles in a liquid; (b) adding one or more polymers containing nitrogen and carbon atoms, or (a1) suspending one or more polymers containing nitrogen and carbon atoms in a liquid; (b1) adding the plateletlike particles, (c) effecting a polymeric coating layer to be formed on the surface of said plateletlike particles from the polymers added at step (b), or (a1); (d) isolating said plateletlike particles having said polymeric coating layer from the suspension; and (e) heating said plateletlike particles having said polymeric coating layer to a temperature of from 100° C. to 1000° C.
    Type: Application
    Filed: August 7, 2008
    Publication date: May 5, 2011
    Applicant: CIBA CORPORATION
    Inventors: Yu Gao, Min Yu, Patrice Bujard
  • Patent number: 7932218
    Abstract: Certain NH sterically hindered amine compounds of the formula where R is a straight or branched alkyl group of from 7 to 17 carbon atoms and where n is from 6 to 18 are suitable for use as stabilizers in lubricant compositions. The sterically hindered amines are non-aggressive towards fluoroelastomer O-rings or seals.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: April 26, 2011
    Assignee: Ciba Corporation
    Inventors: David E. Chasan, Patricia R. Wilson, Marc Ribeaud
  • Publication number: 20110065576
    Abstract: The present invention provides a laser-sensitive coating composition comprising titanium dioxide in the anatase form or polymeric particles comprising a polymeric matrix comprising one or more water-insoluble polymers and titanium dioxide in the anatase form encapsulated in the polymeric matrix, and a polymeric binder. The present invention also provides a process for the preparation of the compositions, processes for preparing substrates coated with the coating compositions, substrates coated with the compositions, processes for marking the substrates coated with the compositions, and marked substrates obtainable by the latter processes.
    Type: Application
    Filed: August 12, 2008
    Publication date: March 17, 2011
    Applicant: CIBA CORPORATION
    Inventors: Jonathan Campbell, Marc Mamak, Clifford John Coles
  • Publication number: 20110021407
    Abstract: The present invention relates to the use of metal complex compounds having hydrazide ligands as oxidation catalysts. Further aspects of the invention are formulations comprising such metal complex compounds, novel metal complex compounds and novel ligands. The metal complex compounds are used especially for enhancing the action of peroxides, for example in the treatment of textile material, without at the same time causing any appreciable damage to fibres and dyeings. There is also no appreciable damage to fibres and dyeings if these metal complexes are used in combination with an enzyme or a mixture of enzymes.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 27, 2011
    Applicant: CIBA CORPORATION
    Inventors: Barbara Wagner, Hauke Rohwer, Marie-Josee Dubs, Nicole End, Menno Hazenkamp, Sophie Marquais-Bienewald
  • Publication number: 20110009536
    Abstract: The present invention is directed to a new C.I. Pigment Violet 37 in rod-like form, a process for its preparation and its use for coloring high molecular weight organic material. The C.I. Pigment Violet 37 in rod-like form having a length of 0.5 to 30 ?m, a width of 0.05 to 1 ?m, especially 0.100 to 0.500 ?m and an average thickness of 0.01 to 0.200 ?m, especially 0.03 to 0.100 ?m.
    Type: Application
    Filed: December 4, 2007
    Publication date: January 13, 2011
    Applicant: CIBA CORPORATION
    Inventors: Marc Maurer, Niklaus Raetzo
  • Publication number: 20100330009
    Abstract: The present invention relates to derivatives of the 1H-pyrano[4,3-b]benzofuran-1-one structure and their nitrogen analogues which possess powerful antioxidant properties combined with a highly effective UV absorbing functionality in one molecule. These compounds are especially useful in cosmetical and dermatological formulations.
    Type: Application
    Filed: February 29, 2008
    Publication date: December 30, 2010
    Applicant: CIBA CORPORATION
    Inventors: Barbara Wagner, Sebastien Mongiat, Bernd Herzog, Werner Baschong, Andreas Buthe, Reinhold Ohrlein
  • Publication number: 20100330384
    Abstract: By treatment with hydrophobins, cellulosic materials such as paper, cardboard, cotton or, especially, wood-based materials, such as solid wood, glued wood products or particle board, can be effectively protected against absorption of and attack by water and/or moisture.
    Type: Application
    Filed: February 27, 2008
    Publication date: December 30, 2010
    Applicant: CIBA CORPORATION
    Inventors: Esther Gabor, Andreas Buthe, Jurgen Eck, Franz Kaufmann, Hans-Jorg Koch, Guido Meurer
  • Publication number: 20100317819
    Abstract: Color filter comprising a surface-modified nanoparticle wherein a cationic colorant is covalently attached to the surface of said nanoparticle, a polymerizable mixture for making color filters, a surface-modified nanoparticle and its use.
    Type: Application
    Filed: February 20, 2008
    Publication date: December 16, 2010
    Applicant: CIBA CORPORATION
    Inventors: Gerardus De Keyzer, Bernd Lamatsch, Andreas Muehlebach, Francois Rime, Gregor Schmitt
  • Publication number: 20100285234
    Abstract: The invention relates to an actinic radiation-curable coating composition comprising a compound having at least two isocyanate groups, a compound having at least two hydroxyl groups, and a photolatent catalyst for the isocyanate-hydroxyl addition reaction, wherein the photolatent catalyst is an organic metal compound comprising a latent catalytically active metal, and wherein the latent catalytically active metal atom in the organic metal compound has no bonds to other metal atoms. The invention further relates to a process for forming a coating on a substrate.
    Type: Application
    Filed: June 20, 2007
    Publication date: November 11, 2010
    Applicant: CIBA CORPORATION
    Inventors: Keimpe Jan Van Den Berg, Josephus Christiaan Van Oorschot, Edith Benningshof-Hulsbos, Jan Cornelis Van Beelen