Patents Assigned to CIBA Specialty Chemicals
-
Publication number: 20130143051Abstract: The instant invention relates to novel hydroxyphenyl triazine UV-absorbers with an aromatic carbocyclic fused ring system having a long wavelength shifted absorption spectrum with significant absorbance up to 420 nm. Further aspects of the invention are a process for their preparation, a UV stabilized composition containing the new UV-absorbers, a process for the stabilization of organic materials and the use of the new compounds as UV-light stabilizers for organic materials.Type: ApplicationFiled: January 23, 2013Publication date: June 6, 2013Applicant: Ciba Specialty Chemicals Holding Inc.Inventor: Ciba Specialty Chemicals Holding Inc.
-
Patent number: 8404624Abstract: The invention relates to an additive composition, which comprises an additive mixture that essentially consists of a) At least one ammonium phosphate ester; b) At least one thiophosphoric acid ester, and c) At least one dithiophosphoric acid derivative; in combination with sulphur containing oil additives; and a process for the reduction of wear in combustion engines, such as spark ignition or Diesel motor engines.Type: GrantFiled: March 13, 2006Date of Patent: March 26, 2013Assignee: Ciba Specialty Chemicals CorporationInventor: Marc Ribeaud
-
Patent number: 8389719Abstract: The instant invention relates to novel hydroxyphenyl triazine UV-absorbers with an aromatic carbocyclic fused ring system having a long wavelength shifted absorption spectrum with significant absorbance up to 420 nm. Further aspects of the invention are a process for their preparation, a UV stabilized composition containing the new UV-absorbers, a process for the stabilization of organic materials and the use of the new compounds as UV-light stabilizers for organic materials.Type: GrantFiled: May 31, 2006Date of Patent: March 5, 2013Assignee: Ciba Specialty Chemicals Corp.Inventors: Thomas Vogel, Adalbert Braig, Thomas Schäfer, Rachel Kohli Steck, Valerie Stutz
-
Patent number: 8329625Abstract: The present invention relates to an aqueous functional fluid comprising an antioxidant of the hindered phenol type and a water-soluble polyalkylene glycol. The aqueous functional fluids are especially suitable for use as hydraulic or metal working fluids. The present invention also relates to the use of the aqueous functional fluid for improving the performance properties of hydraulic or metal working fluids.Type: GrantFiled: May 3, 2010Date of Patent: December 11, 2012Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Rohrbach, Samuel Evans, Stefan Laeuger
-
Patent number: 8153406Abstract: A microorganism which is Rhodococcus rhodochrous strain NCIMB 41164 or a mutant thereof. A method of culturing the microorganism in a culture medium comprising urea or urea derivative is claimed. A nitrile hydratase obtainable from the microorganism is claimed. Also claimed is a process of preparing an amide from the corresponding nitrile wherein the nitrile is subjected to a hydration reaction in an aqueous medium in the presence of a biocatalyst selected from the group consisting of a microorganism which is a Rhodococcus rhodochrous strain NCIMB 41164, a mutant thereof and a nitrile hydratase obtainable from Rhodococcus rhodochrous strain NCIMB 41164 or a mutant thereof. Also claimed is a method of storing the Rhodococcus rhodochrous NCIMB 41164.Type: GrantFiled: July 8, 2009Date of Patent: April 10, 2012Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Jonathan Hughes, Yvonne Armitage, Jatinder Kullar, Stuart Greenhalgh
-
Patent number: 8088288Abstract: A process of dewatering an aqueous suspension comprising treating the suspension with a dewatering amount of a reverse phase polymer, and subjecting the suspension to a mechanical dewatering to form a cake, characterized in that the reverse phase polymer only partially inverts to bring about flocculation and thickening of the suspension, and then fully inverts during the further dewatering to form a cake.Type: GrantFiled: June 7, 2010Date of Patent: January 3, 2012Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Tony Whittaker, Peter Norman, Darryl Smith
-
Patent number: 8067193Abstract: A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation process for the production of a fermentation product, in which the liquor has been subjected to a temperature of at least 50° C., wherein the solids-liquid separation stage is assisted by a treatment system, characterised in that the treatment system comprises an anionic polymer selected from natural polymers and modified natural polymers having a high anionic charge such that the equivalent weight is below 300, and synthetic polymers formed from at least 50% by weight anionic monomer units.Type: GrantFiled: January 20, 2005Date of Patent: November 29, 2011Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Jonathan Hughes, Rajesh Mistry, Kenneth Charles Symes
-
Patent number: 8067215Abstract: A process for preparing a polymer of an ethylenically unsaturated monomer, in which the monomer is obtainable from a biocatalysed reaction or a fermentation process, and wherein the monomer contains cellular material and/or components of a fermentation broth, forming the polymer by polymerizing the ethylenically unsaturated monomer or a monomer mixture comprising the ethylenically unsaturated monomer, wherein there is substantially no removal of the cellular material and/or components of the fermentation broth from the ethylenically unsaturated monomer.Type: GrantFiled: November 22, 2004Date of Patent: November 29, 2011Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Stuart Greenhalgh, Kenneth Charles Symes, Yvonne Armitage, Jonathan Hughes, Gary Richardson
-
Patent number: 8030040Abstract: A process of producing fermentation product comprising, forming an acidified suspension of particulate plant derived material comprising a first polysaccharide which is more readily hydrolysable and a second polysaccharide which is more difficult to hydrolyse; allowing the first polysaccharide to undergo hydrolysis under conditions such that the first polysaccharide is hydrolysed, thereby forming a mixture of an aqueous liquor containing dissolved sugar and a solid residue containing the second polysaccharide; subjecting the acidic mixture to one or more separation stages in which the solid residue and aqueous sugar liquor are substantially separated from each other; passing the aqueous liquor to a fermentation stage where the dissolved sugars are acted upon by a microorganism in a broth to produce a fermentation product; and separating the fermentation product from the broth, characterised in that the separation stage uses one or more flocculating agent(s) to form a waste by-product.Type: GrantFiled: July 28, 2003Date of Patent: October 4, 2011Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventor: Jonathan Hughes
-
Patent number: 7932191Abstract: A composition comprising particles which comprise a core material within a polymeric shell, wherein the core material comprises a hydrophobic substance, in which the amount of the polymeric shell forms at least 8% of the total weight of the particles, wherein the polymeric shell comprises a copolymer formed from a monomer blend which comprises, A) 5 to 90% by weight of an ethylenically unsaturated water soluble monomer, B) 5 to 90% by weight of a multifunctional monomer, and C) 0 to 55% by weight other monomer, and wherein the amount of the polymeric shell and the proportions of. A, B and C are such that the particles exhibit a half height of at least 350° C. 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: GrantFiled: April 18, 2005Date of Patent: April 26, 2011Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Howard Roger Dungworth, Rachel Weston, Rebecca Kelly
-
Publication number: 20110086816Abstract: The invention relates to cationic siloxane derivatives for use especially as fungicides and/or antiadhesives. The cationic siloxane derivatives have the formula (I), wherein R1, R2, R3, R4, R4?, R5 and n are as defined in the description.Type: ApplicationFiled: February 19, 2007Publication date: April 14, 2011Applicant: CIBA SPECIALTY CHEMICALS HOLDING INC.Inventors: Werner Hölzl, Andrea Preuss, Michèle Gerster
-
Patent number: 7901583Abstract: A process in which material comprising an aqueous liquid with dispersed particulate solids is transferred as a fluid to a deposition area, then allowed to stand and rigidify, and in which rigidification is improved while retaining the fluidity of the material during transfer, by combining with the material an effective rigidifying amount of aqueous solution of a water-soluble polymer. The process is particularly suitable for the treatment of the tailings underflow resulting from a mineral processing operation and the co-disposal of fine and coarse tailings fractions. In addition, liquor released during the rigidification step is of high clarity.Type: GrantFiled: December 22, 2009Date of Patent: March 8, 2011Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Philip McColl, Stephen Scammell
-
Patent number: 7879928Abstract: The present invention describes a process for preventing the formation of aldehydic contaminants in polyether polyols, polyester polyols or polyurethanes which comprises incorporating into said polyether polyols, polyester polyols or polyurethanes an effective amount of a) a phenolic antioxidant, b) one or more compounds selected from (i) aminic antioxidants, (ii) benzofuran-2-ones, and (iii) phosphites or phosphonites, or (iv) mixtures thereof.Type: GrantFiled: April 11, 2006Date of Patent: February 1, 2011Assignee: Ciba Specialty Chemicals Corp.Inventors: Chin Siong Goh, Kerstin Schrinner, Pascal Xanthopoulos
-
Patent number: 7875676Abstract: The present invention is directed to a method for preparing a cellulose reactive adduct of polyvinylamide and a composition resulting from the method. The preparation of the cellulose reactive adduct is carried out close to a Critical Concentration defined herein. When the reaction is run close to this Critical Concentration, the risk of gelation is minimized, consumed glyoxal is maximized, and shelf live is enhanced. Additionally, the glyoxalated vinylamides of the present invention impart improved wet and dry strengthening efficiency to paper and paperboard when compared to adducts disclosed in previously described art.Type: GrantFiled: August 28, 2007Date of Patent: January 25, 2011Assignee: Ciba Specialty Chemicals CorporationInventor: Matthew D. Wright
-
Patent number: 7871642Abstract: A nanodispersion comprises (a) a membrane-forming molecule, (b) a coemulsifier and (c) a lipophilic component, in pharmaceutical end formulations, the nanodispersion being obtainable by (?) mixing the components (a), (b) and (c) until a homogeneous clear liquid is obtained, and (?) adding the liquid obtained in step (?) to the water phase of the pharmaceutical end formulations, where steps (?) and (?) may be carried out without high energy mixing or homogenization. The nanodispersions prepared according to this invention are suitable as transport vehicles for pharmaceutical active agents.Type: GrantFiled: June 5, 2006Date of Patent: January 18, 2011Assignees: Ciba Specialty Chemicals Corporation, Vesifact AGInventors: Andreas Werner Supersaxo, Hans Georg Weder, Dietmar Hüglin, Joachim Friedrich Röding
-
Patent number: 7868171Abstract: The present invention relates to selected glycidyl or carbonyl functional N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a glycidyl or carbonyl functional N-alkoxy-4,4-dioxy-polyalkyl-piperidine nitroxide initiator compound. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers and the use of glycidyl or carbonyl functional N-alkoxy-4,4-dioxy-polyalkyl-piperidine nitroxide initiators for radical polymerization.Type: GrantFiled: March 29, 2007Date of Patent: January 11, 2011Assignee: Ciba Specialty Chemicals Corp.Inventors: Francesco Fuso, Wiebke Wunderlich, Andreas Kramer, Jochen Fink
-
Patent number: 7863236Abstract: The present invention provides a detergent composition D comprising at least one compound of formula (1) together with at least one compound of formula (2) wherein all substituents have the meanings as defined in the claims; as well as a process using such detergent composition and mixtures comprising fluorescent whitening agents.Type: GrantFiled: March 15, 2004Date of Patent: January 4, 2011Assignee: Ciba Specialty Chemicals Corp.Inventors: Jürgen Kaschig, Robert Hochberg, Oliver Becherer, Gerhard Merkle, Monika Schaumann, Bernard Schultz
-
Patent number: 7858694Abstract: Polymer of formula (I): In-[(A)x-(B)y-(A?)x?-(E)z]n obtained by nitroxyl mediated controlled free radical polymerization whereby an access of acrylate is present, wherein In is the initiator fragment starting the polymerization reaction; A and A? are the same or different monomers selected from the group consisting of acrylic acid, methacrylic acid, acrylonitrile, methacrylonitrile, acrylic acid (C1-C22)alkyl esters, acrylic acid (C1-C22)hydroxyalkyl esters, methacrylic acid (C1-C22)alkyl esters, methacrylic acid (C1-C22)hydroxyalkyl esters, acrylic acid (C1-C22)alkyl esters or methacrylic acid (C1-C22)alkyl esters which are substituted by amino, (C1-C22)alkylamino, (C1-C22)dialkylamino, —SO3H, epoxy, fluoro, perfluoro or siloxane groups, styrene, substituted styrene, acrylamide and methacrylamide, N-mono(C1-C22)alkyl acrylamide, N,N-di(C1-C22)alkyl acrylamide; provided that the amount of unsubstituted acrylic acid (C1-C22)alkyl esters or/and methacrylic acid (C1-C22)alkyl esters is more than 30% by weight baType: GrantFiled: August 21, 2006Date of Patent: December 28, 2010Assignee: Ciba Specialty Chemicals Corp.Inventors: Lothar Alexander Engelbrecht, Arend Noordam
-
Patent number: 7855302Abstract: The invention relates to novel synthesis methods for the preparation of statin derivatives, which methods proceed by way of a key intermediate of formula I wherein X is halogen, acyloxy, activated hydrocarbyloxy, activated hydrocarbylthio or —N(CH3)OCH3, Ra is a hydroxy-protecting group and Rb is a carboxy-protecting group, and, as well as to the compound of formula I, to further new intermediates and methods for their preparation by Friedel-Crafts acylation.Type: GrantFiled: July 24, 2008Date of Patent: December 21, 2010Assignee: Ciba Specialty Chemicals Corp.Inventors: Reinhold Öhrlein, Gabriele Baisch, Nicole End, Stephan Burkhardt, Martin Studer
-
Patent number: 7842630Abstract: The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 12 to 15 carbon atoms, or is straight or branched chain alkenyl of 12 to 18 carbon atoms. The alkyl metal sulfonates are present from about 2% to about 5% by weight based on the weight of the polyester. A post treatment step such as an alkaline treatment step is not included. The melt extrusion mixtures do not include certain additives such as polyoxyalkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.Type: GrantFiled: November 14, 2007Date of Patent: November 30, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Colin J. H. Morton, Thomas Thompson, Ashutosh H. Sharma