Patents Assigned to Ciba Specialty Chemicals Corporation
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Patent number: 7619046Abstract: The present invention provides a process for the preparation of polymer which comprises the steps of i) feeding an aqueous mixture comprising a monoethylenically unsaturated monomer or a mixture of monoethylenically unsaturated monomers and an initiator into the top of a reactor ii) polymerizing the monoethylenically unsaturated monomer to form a gel-like aqueous mixture comprising the polymer, iii) squeezing the gel-like aqueous mixture comprising the polymer out of the bottom of the reactor using inert gas, wherein the reactor is either a vertical fully conical reactor having an angle (alpha) between top diameter (d1) of the reactor and inner wall of the reactor of smaller than 90° but larger than 45° or is made up of 2 to 5 connected vertical fully conical parts, which are on top of one another, each having an angle between top diameter of the part and inner wall of the part of smaller than 90° but larger than 45°.Type: GrantFiled: April 19, 2006Date of Patent: November 17, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Simon Broughton, Gareth Ian Naylor, Anthony Moran
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Patent number: 7615522Abstract: The present invention relates to a block copolymer prepared by ATRP, wherein the polymer chain terminal group is structurally modified with the functionally effective group of a lubricant or polymer additive selected from the group consisting of antioxidants, metal deactivators, antiwear and extreme pressure additives and corrosion inhibitors. The invention also relates to a composition comprising the structurally modified block copolymer and a composition of matter subject to oxidative, thermal or light induced degradation, such as lubricants or polymers.Type: GrantFiled: April 29, 2003Date of Patent: November 10, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Hugo Camenzind, Paul Dubs, Peter Hänggi, Roger Martin, Andreas Mühlebach, François Rime
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Patent number: 7608117Abstract: The present invention relates to a method of producing a granular formulation of colorants soluble in plastics, which method comprises suspending in water a filter cake obtained from preparation of the colorant, adding thereto from 0.1 to 5.0% by weight, calculated with respect to the weight of colorant, of a polyvinylpyrrolidone and, where appropriate, further adjuvants, and then drying the aqueous suspension to form granules, to the granular formulations obtainable according to that method, and to the use thereof in the production of colored plastics or colored polymeric particles.Type: GrantFiled: May 8, 2007Date of Patent: October 27, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Paolo Balliello, Walter Dümler
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Patent number: 7594962Abstract: The present invention relates to a process for the production of porous inorganic materials or a matrix material containing nanoparticles with high uniformity of thickness and/or high effective surface area and to the materials obtainable by this process. By the abovementioned process materials with a defined thickness in the region of ±10%, preferably ±5%, of the average thickness are available.Type: GrantFiled: January 12, 2004Date of Patent: September 29, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Patrice Bujard, Andreas Mühlebach, Paul Adriaan Van Der Schaaf
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Patent number: 7595011Abstract: Disclosed are compositions, which are stabilized against degradation and yellowing during exposure to ultraviolet light by the presence of certain hindered amine additives, a method of stabilizing the compositions by the addition of said additives, to the use of such compositions as media in electroactive devices such as electrochromic and electrophoteric devices, and the electroactive devices comprised of these media.Type: GrantFiled: June 30, 2005Date of Patent: September 29, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Mouhcine Kanouni, Simon Lord, Nancy Cliff
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Patent number: 7595359Abstract: The instant invention relates to cationic alkoxyamines, which are useful as polymerization initiators/regulators in a controlled stable free radical polymerization process to produce intercalated and/or exfoliated nanoparticles from natural or synthetic clays. The invention also relates to improved nanocomposites produced by this process and to the use of these nanocomposite compositions as, for example, coatings, sealants, caulks, adhesives and as plastic additives.Type: GrantFiled: June 17, 2003Date of Patent: September 29, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Mühlebach, Peter Nesvadba, Andreas Kramer
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Patent number: 7595416Abstract: The invention relates to a phosphoric acid ester and salts thereof of the general formula (I), wherein A is a monohydroxyl residue derived from C1-C20-alkyl-(AO)x-OH or Acyl-(AO)x-OH; or C1-C20-alkyl-(AO)x-(HA)y-OH or Acyl-(AO)x-(HA)y-OH; or C1-C20-alkyl-(AO)x-(AA-AO)y-OH or Acyl-(AO)x-(AA-AO)y-OH; or MO-(HA)y-OH or MO-(AA-AO)y-OH; wherein Acyl is an aromatic carboxylic acid residue or a saturated or unsaturated fatty acid residue; AO is a polyC2-C4alkyleneglycol residue, HA is a hydroxycarboxylic acid or a lactone thereof, AA is a dicarboxylic acid, MO is a monoalcohol, x is 1 to 250, y is 1 to 250, B is a mono-, di-, or tri- or polyhydroxy di-, tri or multi-carboxylic acid residue which is linked via the hydroxy group to the phosphoric acid and via one of the carboxylic acid groups to the monohydroxyl residue [A], the remaining carboxyl acid group(s) is/are free or is/are esterified with a further monohydroxyl residue [A], resulting in branched esters; n is 1-2; m is 1-4.Type: GrantFiled: February 28, 2005Date of Patent: September 29, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Frank Oliver Heinrich Pirrung, Arend Noordam, Petrus Johannes Harbers, Elizabeth Maaike Loen, Arona Eliane Munneke
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Patent number: 7595008Abstract: A stabilizer mixture containing the components (I), (II) and (III) wherein component (I) is for example a compound of the formula (B-1-b) wherein E1 is hydrogen; component (II) is for example a compound of the formula (B-0-a) wherein E1* is hydrogen; and component (III) is for example a compound of the formula (C-1-a) wherein b1 is a number from 2 to 20 and R6 is hydrogen; is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.Type: GrantFiled: January 25, 2006Date of Patent: September 29, 2009Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 7589035Abstract: Disclosed are stabilized body care products, household products, textiles and fabrics which comprise certain sterically hindered amine salt compounds. Dyed products and articles are effectively stabilized against color degradation. The products are for example skin-care products, hair-care products, dentifrices, cosmetics, laundry detergents and fabric softeners, non-detergent based fabric care products, household cleaners and textile-care products.Type: GrantFiled: March 19, 2009Date of Patent: September 15, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Joseph A. Lupia, Joseph Suhadolnik, Mervin G. Wood, Wanda H. Martin
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Patent number: 7585333Abstract: The present invention relates to a fluorescent whitening agent comprising a mixture of two symmetrically and one asymmetrically substituted triazinylaminostilbene disulphonic acids, certain novel derivatives, a process for their preparations and use of the mixture for whitening synthetic or natural organic materials, especially paper and for the fluorescent whitening and improvement of sun protection factors of textile materials.Type: GrantFiled: January 10, 2005Date of Patent: September 8, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Fabienne Cuesta, Ted Deisenroth, Peter Rohringer
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Patent number: 7585391Abstract: The invention relates to the sizing of paper and board using alkenyl succinic anhydride (ASA). The invention provides a sizing composition which comprises an aqueous emulsion of an ASA wherein the ASA incorporates a maximum of 1% by weight (preferably a maximum of 0.5% by weight) of polymeric residues. The composition may incorporate less than 0.5% by weight of olefins. Paper sizing compositions in accordance with the invention provide enhanced resistance to penetration of the edges of paper and board by agents such as hot hydrogen peroxide and lactic acid.Type: GrantFiled: June 12, 2003Date of Patent: September 8, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Kenneth Sundberg, John Roberts, Claes Zetter, Guomei Peng
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Patent number: 7582230Abstract: The invention relates to novel liquid crystal displays comprising a broad backlight emission around 530 nm and a green color filter containing a phthalocyanine colorant, most adequately tetrahydroxy- or tetraalkoxy-substituted but lacking solubilizing groups.Type: GrantFiled: August 5, 2003Date of Patent: September 1, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Gerardus de Keyzer, Taher Yousaf, Vadiraj Subbanna Ekkundi, Chandrasekhar Dayal Mudaliar
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Patent number: 7579411Abstract: The invention relates to hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer and methods for achieving a controlled increase in the molecular weight of polyethylene.Type: GrantFiled: February 12, 2008Date of Patent: August 25, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Roth, Rudolf Pfaendner, Peter Nesvadba, Marie-Odile Zink
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Patent number: 7572843Abstract: The invention relates to poly(vinylalcohol)-co-poly(vinylamine) copolymers represented as formula (I), where B is greater than or equal to 1, L is independently of each other a chemical linking group which is —NH—, —N?, >N—, >N++<, —O— or —CO—, COPOLYMER is derived from a prepolymer of the formula (II) where R1 and R3 are independently H; 3-propionic acid or C1,-C6 alkyl ester thereof; or is 2-methyl-3-propionic acid or C1-C6 alkyl ester thereof, R2 and R4 are independently H or C1,-C6 alkyl, x+y+z is between about 3 and about 50 mole percent and q, n and m together make up the remainder of the mole percent, the indices x, y, z, n, m -and q independently may be 0, if q is not 0, b may also be 0.Type: GrantFiled: December 16, 2002Date of Patent: August 11, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Walter L. Renz, Ramanathan Ravichandran, Andrew J. Naisby, Joseph Suhadolnik, Mervin Gale Wood, Rong Xiong
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Patent number: 7566349Abstract: The present invention provides novel bis-triazinylaminostilbene amphoteric fluorescent whitening agents, comprising both individual components and mixtures thereof, a process for their preparation, intermediates useful for their preparation and use of the fluorescent whitening agents for the fluorescent whitening of paper.Type: GrantFiled: June 11, 2007Date of Patent: July 28, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Goetz Scheffler, Peter Rohringer, Ian John Fletcher
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Patent number: 7556843Abstract: A photopolymerization process for producing pigmented and non-pigmented articles comprises irradiating with electromagnetic radiation in the range from 190 to 600 nm, or with electron beam or with X-rays a photosensitive composition which can be developed by alkali solution which composition comprises (A) a polymer containing at least one carboxylic acid group in the molecule and having a molecular weight of 200,000 or less, (B) selected ?-aminoalkylphenone compounds as photoinitiators and (C) an ester of a polyol, wherein the polyol is partially or fully esterified with an ethylenically unsaturated carboxylic acid a monomeric, oligomeric or polymeric compound having at least one olefinic double bond.Type: GrantFiled: June 13, 2007Date of Patent: July 7, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Hisatoshi Kura, Hidetaka Oka, Masaki Ohwa
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Patent number: 7550041Abstract: The invention pertains to a highly concentrated pigment comprising from 75 to 95% by weight, preferably from 78 to 95% by weight, most preferred from 80 to 95% by weight, based on the weight of the composition, of a pigment; from 0 to 20% by weight, preferably from 5 to 18% by weight, based on the weight of the composition, of a resin; the total of pigment and resin being from 85 to 98% by weight of the composition; and from 1 to 15% by weight, preferably from 2 to 15% by weight, most preferably from 5 to 15% by weight, based on the weight of the composition, of a C10-C18 alcohol, a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa, or both a C10-C18 alcohol and a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa. Also claimed are a process for its manufacture, comprising dry-milling, blending and kneading the components, and the use of the pigment concentrates for the preparation of a masterbatch, ink, coating, plastic material, toner or colour filter.Type: GrantFiled: October 24, 2005Date of Patent: June 23, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Healy, Lynda Cannon, Tracy Murray
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Patent number: 7550599Abstract: Sterically hindered alkoxyamine and hydroxy substituted alkoxyamine stabilizer compounds are made water compatible via certain backbones with affinity towards water. The sterically hindered amines are for example of the formula where for example E and E? are 2-hydroxycyclohexyloxy, 2-hydroxy-2-methylpropoxy, benzyloxy, methoxy, propoxy, hexyloxy, heptyloxy, octyloxy or cyclohexyloxy, Rx is for example —NH2+CH2CH2OH Cl?, —NH3+?OAc, ?NOH, —NHCH(CH3)COO?K+, —NHCH2CH2N(CH3)2+?OAc, —NHCH2CH2SO3?K+, —NHCH(COO?K+)CH2CH2SCH3, —NHCH2COO?K+, —OCH(CH3)COO?K+, —OCH2CH2N(CH3)2+?OAc, —OCH2CH2SO3?K+, —OCH(COO?K+)CH2CH2SCH3 or —OCH2COO31K+, and where R5 comprises repeating units of —(OCH2CH2)—, —(OCH2CH2(CH3))—, —(CH2CHCOOH)—, —(CH2C(CH3)COOH)—, —(CH2CHCOOCH3)—, —(NHCH2CH2)—, —(CH2CHOH)—, —(CH2CHCONH2)— or —(CH2CH(NHCOH))—. These compounds are particularly effective in stabilizing aqueous polymer systems against the deleterious effects of oxidative, thermal and actinic radiation.Type: GrantFiled: May 25, 2005Date of Patent: June 23, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin G. Wood, Robert Detlefsen, James Galbo, Wanda Martin, Paul Kondracki, Michael P. DiFazio, Joseph E. Babiarz
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Patent number: 7547738Abstract: The invention relates to agglomerates of flame-retardants, in particular melamine cyanurate, containing aggregates with an average size of between 0.1 and 50? bonded to each other with the aid of an auxiliary material. This auxiliary material is present in a concentration of between 0.1 and 10 wt. %, relative to the total agglomerates weight, and has a softening point higher than 40° C. The invention further relates to a method for producing said agglomerates, the use of the agglomerates in the preparation of polymer compositions, and polymer compositions containing melamine cyanurate.Type: GrantFiled: May 23, 2006Date of Patent: June 16, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Renier Henricus Maria Kierkels, Philippe Wolfgang Paul Valere Bleiman, Stefan Hendrikus Schaafsma, Johannes Cornelis Jozef Mokveld
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Patent number: 7544401Abstract: An ink jet recording media system is described which comprises at least one coating layer that comprises a zwitterionic polymer or oligomer. The media system exhibits excellent light fastness as well as good dry time and good image-forming properties.Type: GrantFiled: October 24, 2002Date of Patent: June 9, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Howard Roger Dungworth, Andrew J. Naisby, Joseph Suhadolnik, David A. Yale