Nonhetero Nitrogen Patents (Class 524/103)
  • Patent number: 7214729
    Abstract: Disclosed is a flame retardant lighting assembly comprising thermoplastic insulation, plugs and sockets. The thermoplastic resin is for example polypropylene homopolymer and comprises a synergistic combination of an N-alkoxyoxy hindered amine and a conventional organohalogen flame retardant. The addition of low levels of acid scavengers such as hydrotalcites is advantageous.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 8, 2007
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Nikolas Kaprinidis, Nicola Lelli
  • Patent number: 7169835
    Abstract: A stabilizer mixture containing (A) a sterically hindered amine compound, and (B) two different compounds selected from the group consisting of an organic salt of Zn, an inorganic salt of Zn, an organic salt of Mg and an inorganic salt of Mg; the weight ratio of the two different compounds being 1:10 to 10:1; with the provisos that (1) the stabilizer mixture is essentially free of perchloric acid, and (2) the two compounds in component (B) are different from the combination ZnO and Zn stearate and the combination ZnO and hydrotalcite; is useful for stabilizing an organic material, in particular a polyolefin, against degradation induced by light, heat or oxidation.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: January 30, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 7132467
    Abstract: Polyolefin mouldings that have excellent stability on permanent contact with chlorinated water comprise, as stabilizer, at least a compound selected from the group consisting of i) an epoxidized fatty acid having 3 to 22 carbon atoms or an aklyl ester thereof having 1 to 18 carbon atoms; and/or ii) an organotin compound; and/or iii) a compound containing at least one radical of the formula A or B.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: November 7, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Erich Kramer, Alfred Georges Oertli, Markus Grob
  • Patent number: 7109260
    Abstract: Organic polymeric substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation of a synergistic mixture of (i) at least one sterically hindered amine stabilizer, (ii) at least one conventional flame retardant selected from the group consisting of the organohalogen, phosphorus containing, isocyanurate and melamine based flame retardants and (iii) at least one acid scavenger. The compositions of the invention combine good flame retardant properties with light stability and good mechanical properties. Polyolefin molded articles are stabilized against light, heat and oxygen and made flame retardant with the incorporation of at least one sterically hindered amine and at least one conventional flame retardant, while allowing normally high levels of flame-retardant fillers to be greatly reduced or eliminated.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: September 19, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Nikolas Kaprinidis, Nicola Lelli
  • Patent number: 7084197
    Abstract: Polymer compositions comprising a polymeric substrate and an effective stabilizing amount of a synergistic mixture of a nano-scaled filler and at least one additive selected from the group consisting of the hindered amine light stabilizers are effectively stabilized against the deleterious effects of oxidative, thermal or light-induced degradation.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: August 1, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hui Chin, Peter Shelsey Solera, Douglas Wayne Horsey, Nikolas Kaprinidis
  • Patent number: 7037962
    Abstract: The instant invention relates to a thermoplastic polymer composition useful in greenhouse films to enhance plant growth or in general bio-mass production. Further aspects of the invention are a process for enhancing plant growth in greenhouses by incorporating a photoactive additive together with light stabilizers into the greenhouse film and the use of the condensation product of dialkylamino benzaldehyde and barbituric acid together with light stabilizers as a plant growth enhancing additive in polymeric greenhouse films.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 2, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Mara Destro, Michela Bonora, Galileo Magnani
  • Patent number: 7034069
    Abstract: The present invention relates to highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers and for their use in protecting plants in green houses and the protection of foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, shampoos and the like from the deleterious effects of ultraviolet radiation. It has been found that certain highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers are especially effective towards this end when incorporated in the containers or films in which such materials are stored.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: April 25, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Dario Lazzari, Gianluca Ferri, Massimiliano Sala, Michela Bonora, Manuele Vitali
  • Patent number: 7026380
    Abstract: A stabilizer mixture containing A) either (A1) at least one compound of the formula in which R1 is for example hydrogen or C1–C8alkyl; R2, R3, R5 and R6 are for example hydrogen, C1–C30alkyl or phenyl; R4 is for example C1–C30alkyl or 2,2,6,6-tetramethyl-4-piperidyl; and n1 is a number from 1 to 50; or (A2) at least one compound of the formulae wherein n2 and n2* are a number from 2 to 50; B) magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium; and C) either (C1) an UV absorber or (C2) a pigment or (C3) an UV absorber and a pigment; with the proviso that, when component A) is at least one compound of the formulae (IIIa) and (IIIb), component B) is magnesium oxide, magnesium hydroxide or an organic salt of zinc or magnesium. Such a stabilizer mixture is particularly useful for stabilizing a polyolefin against light-induced degradation.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: April 11, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 7019053
    Abstract: A stabilizer mixture containing A) for example at least one compound of the formula (I) wherein the radicals R1, independently of one another, are hydrogen, C1–C8alkyl, —O?, —CH2CN, C3–C6alkenyl, C7–C9phenylalkyl, C7–C9phenylalkyl which is substituted on the phenyl radical by C1–C4alkyl; or C1–C8acyl; and B) magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and C) either (C1) an UV absorber or (C2) a pigment or (C3) an UV absorber and a pigment. Such a stabilizer mixture is particularly useful for stabilizing a polyolefin against light-induced degradation.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: March 28, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 6946517
    Abstract: A stabilizer mixture containing (A) for example a compound of the formula (A-I) wherein R1 is hydrogen or C1-C4alkyl, R2 is a direct bond or C1-C10alkylene and n1 is a number from 2 to 50; (B) a sterically hindered amine compound; and (C) anatase; with the proviso that the component (B) is different from a compound of the formula (A-I).
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: September 20, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 6908956
    Abstract: A description is given of a stabilizer composition comprising A) at least one nitrogen compound having a molecular weight of at least 150, selected from a secondary amine in which all substituents positioned ? to the amine nitrogen atom are different than hydrogen, or, derived from the secondary amine, a tertiary amine, hydroxylamine, alkoxyamine or amide; and B) at least one iron compound. The stabilizer composition optionally comprises nitroxyl radicals. It is suitable for stabilizing nonliving organic material, especially polyolefins or homopolymers or copolymers of styrene, against the effects of light, heat or oxygen.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: June 21, 2005
    Assignee: Basf Aktiengesellschaft
    Inventors: Heinz Friedrich Sutoris, Sylke Haremza, Hubert Trauth, Erik Hofmann, Manfred Appel
  • Patent number: 6903153
    Abstract: The invention relates to a polymer composition containing a polymer and, as an additive for making a dark laser marking, at least 0.1 wt. % antimony trioxide having an average particle size above 0.5 micrometer. The invention also relates to articles wholly or partly made of the polymer composition and to a process for applying a dark laser mark onto a light background of such article. The polymer composition according to the invention can be marked with laser light of wavelength 1064 nm.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: June 7, 2005
    Assignee: DSM IP Assets B.V.
    Inventors: Esther Wessels, Johannes F. Higler
  • Patent number: 6897250
    Abstract: An automobile interior or exterior trim material which is formed of a thermoplastic elastomer composition containing 100 parts by weight of a thermoplastic elastomer and 0.001-10 parts by weight of an alkyl benzoate compound of the following formula (I): wherein each of R1 and R2 is a hydrogen atom, a C1-C8 alkyl or cycloalky; grout, or a C6-C12 aryl, alkylaryl, or arylalkyl group; and R3 is a C1-C30 alkyl group. The interior or exterior trim material of the invention has improved weather resistance and resistance to weather-induced coloring.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: May 24, 2005
    Assignee: Asahi Denka Kogyo K. K.
    Inventors: Yuko Takahashi, by, Toshinori Yukino, Mitsuru Fukushima, Masayuki Takahashi
  • Patent number: 6869992
    Abstract: A stabilizer mixture containing (A) a sterically hindered amine compound, and (B) a polymer containing polar residues, the weight ratio of components (A) (B) being 20:1 to 1:20, with the provisos that, (1) component (B) is different from component (A) and does not contain groups of formulae (I) or (II) in which G is hydrogen or methyl, and G1 and G2, independently of one another, are hydrogen, methyl or together are a substituent ?O; and (2) component (B) is different from a polymer having an acidic hydrogen atom.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: March 22, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 6828364
    Abstract: A stabilizer mixture containing (I) two different sterically hindered amine compounds, and (II) at least one compound selected from the group consisting of an organic salt of Zn, an inorganic salt of Zn, Zn oxide, Zn hydroxide, an organic salt of Mg, an inorganic salt of Mg, Mg oxide and Mg hydroxide.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: December 7, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 6812322
    Abstract: A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
  • Patent number: 6812323
    Abstract: A process for preparing polyamides comprises polymerizing starting monomers or starting oligomers in the presence of at least one compound of the formula (I) where R is a functional group R8 which bears 1-4 identical or different amide-forming groups R7, R1 is H, C1-C20-alkyl, cycloalkyl, benzyl or OR6, where R6 is H, C1-C20-alkyl, cycloalkyl or benzyl, R2, R3, R4 and R5 are independently C1-C10-alkyl, n is a natural number greater than 1, and the piperidine derivatives attached to R are identical or different with regard to the substituents, meaning R1, R2, R3, R4 and R5. The polyamides are useful for preparing filaments, fibers, films, sheetlike structures and moldings.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrike Breiner, Manfred Julius, Rainer Neuberg, Robert Weiss, Axel Wilms, Harry Y. Hu
  • Patent number: 6809134
    Abstract: The thermoplast-based glass/plastic compounds according to the invention contain a low melting point sulfophosphate glass having the following composition: 4 to 10% Li2O; 4 to 10% Na2O; 4 to 8% K2O; 1 to 2% CaO; 35 to 37% ZnO; 0 to 3% La2O3; 19 to 22% P2O5 and 19 to 22% SO3, a high-performance thermoplast, an organic additive and/or a mineral filling material and optionally also carbon black and/or a sterically hindered phosphite or phenol.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 26, 2004
    Assignee: SIEMENS Aktiengesellschaft
    Inventors: Robert Greiner, Heinrich Kapitza, Manfred Ochsenkuehn
  • Publication number: 20040171720
    Abstract: Thermoplastic molding compositions comprising, as substantive components
    Type: Application
    Filed: December 10, 2003
    Publication date: September 2, 2004
    Inventors: Burkhardt Dames, Wolfgang Saurer
  • Patent number: 6774205
    Abstract: A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: August 10, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
  • Patent number: 6762226
    Abstract: Polyoxymethylene, blends of polycarbonate with acrylonitrile-butadiene-styrene terpolymer, and coatings based on a functional acrylate resin and a crosslinking agent, which are stabilized by addition of a compound of the formula I wherein s is from the range 1 to 8; R1, R2, R3 and R4, independently of each other, are C1-C4alkyl, or R1 and R2 or R3 and R4, together with the carbon atom to which they are bound, form a cyclopentyl or cyclohexyl ring; R5 is hydrogen; C1-C18alkyl; oxyl; OH; CH2CN; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C7-C12phenylalkyl; C7-C15phenylalkyl, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; C7-C15phenylalkoxy; C7-C15phenylalkoxy, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; or R5 is C1-C8alkanoyl; C3-C5alkenoyl; C1-C18alkanoyloxy; glycidyl; or a group —CH2CH(OH)-G, in which G is hydrogen, methyl or phenyl; and A is as descri
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: July 13, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Alessandro Zedda, Graziano Zagnoni, Massimiliano Sala, Dario Lazzari, Stephen Mark Andrews
  • Patent number: 6727300
    Abstract: Polymeric articles containing at least one polymeric material and a sufficient amount of at least one novel hindered amine light stabilizers to inhibit at least one of photo- or thermal degradation. The hindered amine light stabilizer may be a monomeric or an oligomeric hindered amine light stabilizer.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: April 27, 2004
    Assignee: Cytec Technology Corp.
    Inventor: Thomas P. Sassi
  • Patent number: 6683124
    Abstract: Fluorescent yellow pigment compositions comprising Pigment Violet 19 or Pigment Yellow 192 and a polyamide, a process for the making thereof, and a process for making an article comprising said fluorescent yellow pigment composition.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: January 27, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Joseph R. Webster
  • Patent number: 6642383
    Abstract: Compounds of the formula (I) wherein p is zero or 1; q and r, independently of each other, are an integer from 1 to 6; and s is a number ranging from 1 to 8; X is —O— or, when p is 1, X is also a group Rw, Rx, Ry and Rz are, independently of each other, C1-C18alkyl, C5-C12cycloalkyl or C1-C5hydroxyalkyl, especially methyl; R1 is hydrogen; C1-C18alkyl; oxyl; OH; CH2CN; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C7-C12phenylalkyl; C7-C15phenylalkyl, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; C7-C15phenylalkoxy; C7-C15phenylalkoxy, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; or R1 is C1-C8alkanoyl; C3-C5alkenoyl; C1-C18alkanoyloxy; glycidyl; or a group —CH2CH(OH)—G, in which G is hydrogen, methyl or phenyl; R2 is hydrogen, C1-C8alkyl, C5-C12cycloalkyl or C1-C4hydroxyalkyl; R3, R4, R5 independently of each other
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: November 4, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dario Lazzari, Graziano Zagnoni, Mirko Rossi, Alessandro Zedda, Valerio Borzatta, Stephen Mark Andrews
  • Patent number: 6638997
    Abstract: Hindered amines substituted on the N-atom with an —O—E—OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal —O—E moieties.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: October 28, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James P. Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera
  • Publication number: 20030149143
    Abstract: Polyolefins, especially polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of a selected hindered amine substituted by an alkoxy, cycloalkoxy or hydroxyalkoxy moiety and a selected organic or inorganic brominated and/or phosphorus containing flame retardant, such as ammonium polyphosphate or decabromodiphenyl oxide wherein the amount of organic or inorganic flame retardant required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when the hindered amine is not present.
    Type: Application
    Filed: July 29, 2002
    Publication date: August 7, 2003
    Inventors: Douglas Wayne Horsey, Stephen Mark Andrews, Leonard Harris Davis, Darrell David Dyas, Robert Leo Gray, Anunay Gupta, Bruce Vincent Hein, Joseph Stephen Puglisi, Ramanathan Ravichandran, Paul Shields, Rangarajan Srinivasan
  • Patent number: 6599963
    Abstract: Hindered amine compounds containing a group of the formula where G1 and G2 are independently alkyl of 1 to 4 carbon atoms or are together pentamethylene, Z1 and Z2 are each methyl, or Z1 and Z2 together form a linking moiety which may additionally be substituted by an ester, ether, amide, amino, carboxy or urethane group, and E is alkoxy, cycloalkoxy, aralkoxy, aryloxy, —O—CO—OZ3, —O—Si(Z4)3, —O—PO(OZ5)2 or —O—CH2—OZ6 where Z3, Z4, Z5 and Z6 are selected from the group consisting of hydrogen, an aliphatic, araliphatic and aromatic moiety, when added to a wide variety of polymeric substrates, particularly polyolefins and styrenic polymers, surprisingly bestow flame retardant properties to such compositions.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: July 29, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Douglas Wayne Horsey, Stephen Mark Andrews, Leonard Harris Davis, Darrell David Dyas, Jr., Robert Leo Gray, Anunay Gupta, Bruce Vincent Hein, Joseph Stephen Puglisi, Ramanathan Ravichandran, Paul Shields, Rangarajan Srinivasan
  • Patent number: 6583250
    Abstract: The bondability of a polyolefin, particularly to cyanoacrylate adhesives, is improved by incorporating in the polyolefin a polymerization initiator capable of initiating the polymerization of the monomers constituting the cyanoacrylate adhesive. The polymerization initiator may, for example, be a sterically hindered nitrogen base and may be mixed with the polyolefin at a temperature above the polyolefin's glass transition temperature using, for example, co-extrusion or co-injection methods.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: June 24, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Paul Birnbrich, Herbert Fischer, Manfred Gorzinski, Thomas Huver
  • Publication number: 20030083406
    Abstract: The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) 1
    Type: Application
    Filed: September 27, 2002
    Publication date: May 1, 2003
    Inventors: Sylke Haremza, Jurgen Krockenberger, Manfred Appel, Hubert Trauth, Alexander Aumuller
  • Patent number: 6555604
    Abstract: Use of a pigment of formula (I) where both R are Cl or COOCH3 for the coloration of polyolefins which do not warp.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: April 29, 2003
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Mohamed Sidqi
  • Publication number: 20030069337
    Abstract: A stabilizer mixture containing (A) a sterically hindered amino compound, and (B) a polymer containing polar residues, the weight ratio of components (A)(B) being 20:1 to 1:20, with the provisos that. (1) component (B) is different from component (A) and does not contain groups of formulae (I) or (II) in which G is hydrogen or methyl, and G1 and G2, independently of one another, are hydrogen, methyl or together are a substituent ═O; and (2) component (B) is different from a polymer having an acidic hydrogen atom.
    Type: Application
    Filed: July 23, 2002
    Publication date: April 10, 2003
    Inventor: Francois Gugumus
  • Patent number: 6545071
    Abstract: A stabilizer mixture containing A) for example at least one compound of the formula (I)  wherein the radicals R1, independently of one another, are hydrogen, C1-C8alkyl, —O, —CH2CN, C3-C6alkenyl, C7-C9phenylalkyl, C7-C9phenylalkyl which is substituted on the phenyl radical by C1-C4alkyl; or C1-C8acyl; and B) magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and C) either (C1) an UV absorber or (C2) a pigment or (C3) an UV absorber and a pigment. Such a stabilizer mixture is particularly useful for stabilizing a polyolefin against light-induced degradation.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: April 8, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Patent number: 6541547
    Abstract: Polyolefin mouldings which have excellent stability on permanent contact with extracting media comprise, as stabilizers, a selected mixture comprising an organic phosphite or phosphonite and a specially selected group of sterically hindered phenols or a certain group of sterically hindered amines. In addition, a selected three-component mixture comprising a phosphite or phosphonite, a phenolic antioxidant and a certain group of sterically hindered amines is particularly suitable as stabilizer for polyolefin moldings which are in permanent contact with extracting media.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: April 1, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Thomas Schmutz, Erich Kramer, Hans Zweifel, Bruno Rotzinger
  • Patent number: 6521681
    Abstract: Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation comprise as stabilizers at least one compound of the benzofuran-2-one type and at least one compound of the sterically hindered amine type.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: February 18, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jürg Zingg, Jean-Roch Pauquet, Christoph Kröhnke
  • Patent number: 6508847
    Abstract: Benzotriazole UV absorbers substituted with an ultra long ester or amide moiety wherein the ester or amide group is a hydrocarbyl group of 25 to 100 carbon atoms or is a group of alkyl of 25 to 100 carbon atoms interrupted by 5 to 39 oxygen atoms and terminated with an omega—OH or an omega—OR group exhibit excellent stabilization efficacy while they concomitantly do not bloom when incorporated into polyolefin films. These benzotriazole UV absorbers also provide excellent protection to white, dyed, dipped, unscented and/or scented candle wax from discoloration and degradation.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: January 21, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Mervin Wood, Ramanathan Ravichandran, Douglas Wayne Horsey, Anunay Gupta, Deborah DeHessa, Luther A. R. Hall, Andrea Smith, Stephen Mark Andrews
  • Patent number: 6476105
    Abstract: The present invention relates to a polyamide resin composition having excellent weather resistance and coating adhesion property and more particularly, to the polyamide resin composition capable of direct painting without pretreatment of primer and maintaining excellent weather resistance for a long period of exposure outside by adding an appropriate amount of a weathering stabilizer and a coating adhesion improver.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: November 5, 2002
    Assignees: Hyundai Motor Company, Honeywell Korea Co., Ltd.
    Inventors: Kie-Youn Jeong, Sang-Rok Lee, Hee-Won Seo
  • Patent number: 6423817
    Abstract: A process for preparing inherently light- and heat-stabilized polyamides comprises polymerizing in the presence of at least one triacetonediamine compound of the formula where R is hydrogen or hydrocarbyl having from 1 to 20 carbon atoms, preferably alkyl having from 1 to 18 carbon atoms, or benzyl.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: July 23, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Weinerth, Karlheinz Mell, Paul Matthies, Ludwig Beer
  • Publication number: 20020077393
    Abstract: A stabilizer mixture containing
    Type: Application
    Filed: July 5, 2001
    Publication date: June 20, 2002
    Inventor: Francois Gugumus
  • Publication number: 20020077394
    Abstract: A composition containing polypropylene prepared by polymerization over a metallocene catalyst or a polypropylene copolymer prepared by polymerization over a metallocene catalyst, and a stabilizer mixture comprising
    Type: Application
    Filed: October 9, 2001
    Publication date: June 20, 2002
    Inventors: Francois Gugumus, Nicola Lelli
  • Patent number: 6380285
    Abstract: Benzotriazole UV absorbers substituted with a ultra long ester or amide moiety wherein the ester or amide group is a hydrocarbyl group of 25 to 100 carbon atoms or is a group of alkyl of 25 to 100 carbon atoms interrupted by 5 to 39 oxygen atoms and terminated with an omega-OH or an omega-OR group exhibit excellent stabilization efficacy while they concomitantly do not bloom when incorporated into polyolefin films. These benzotriazole UV absorbers also provide excellent protection to white, dyed, dipped, unscented and/or scented candle wax from discoloration and degradation.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: April 30, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Mervin Wood, Ramanathan Ravichandran, Douglas Wayne Horsey, Anunay Gupta, Deborah DeHessa, Luther A. R. Hall, Andrea Smith, Stephen Mark Andrews
  • Patent number: 6380286
    Abstract: A synergistic stabilizer mixture comprising a component a) and, for example, a component b), where component a) is at least one compound of the formula I in which R1 is hydrogen or methyl, R2 is a direct bond or C1-C10alkylene, and n1 is a number from 2 to 50; component b) is at least one compound of the formulae IIa and IIb in which n2 and n2* are a number from 2 to 50.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: April 30, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: François Gugumus
  • Publication number: 20020032255
    Abstract: The invention relates to a copolyether ester composition protected against the influence of light that contains
    Type: Application
    Filed: April 26, 2001
    Publication date: March 14, 2002
    Inventors: Geert G.I.V. Bonte, Pieter Gijsman
  • Patent number: 6353044
    Abstract: Compounds belonging to the group of enamines consisting of derivatives of &bgr;-keto-esters or &bgr;-keto-amides or 1,3-diketones with primary or secondary aliphatic or aromatic amines carrying at least one sterically hindered amine group having general formula (I) in the molecule. The compounds having general formula (I) can be used as antioxidants or light stabilizers for organic polymers.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: March 5, 2002
    Assignee: Great Lakes Chemical Italia S.R.L.
    Inventors: Luciana Crisci, Fabio Broussard, Carlo Neri, Mauro Adovasio
  • Publication number: 20010056138
    Abstract: The invention concerns a white, light-colored tire rubber composition, devoid of carbon black, comprising at least a diene elastomer, a reinforcing white or colored filler, and an anti-photo-oxidizing system, wherein said protective system comprises (A) a 2,2′-methylene-bis-[4-alkyl (C1-C10)-6-alkyl(C1-C12)phenol]; (B) a dialkylthiodipropionate, the alkyl radicals thereof, which may be identical or different, are (C1-C20), radicals; (C) a 2-(2-hydroxyphenyl) benzotriazole; and (D) a “HALS” amine derived from 2,2,6,6-tetramethylpiperidine.
    Type: Application
    Filed: January 6, 2000
    Publication date: December 27, 2001
    Inventor: DIDIER VASSEUR
  • Patent number: 6297314
    Abstract: The invention relates to a coating agent containing a) one or more polyester resins (A); b) one or more polyacrylate resins (B); c) one or more di- and/or polyisocyanates (C) with free or blocked isocyanate groups; d) one or more light stabilizers (L1) based on a UV absorber; e) one or more light stabilizers (L2) based on sterically hindered amines; and f) one or more organic solvents (D). The coating agent is characterized in that 1) the polyester (A) has a hydroxyl number of 80-200 mg KOH/g and an acid number <10mg KOH/g; 2) the polyacrylate resin (B) has a hydroxyl number of 80-200 mg KOH/g and an acid number <20 mg KOH/g; and 3) the light stabilizer (L2) based on sterically hindered amines is functionalized by aminoether.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: October 2, 2001
    Assignee: BASF Coatings AG
    Inventors: Horst Hintze-Brüning, Patrick Van Ende
  • Publication number: 20010005730
    Abstract: A polyamic acid varnish composition, which is composed of a polyamic acid obtained by the addition polymerization of an diamine and an aromatic acid dianhydride, contains as an additive a specific imidazolyl-diaminoazine.
    Type: Application
    Filed: December 7, 2000
    Publication date: June 28, 2001
    Applicant: SONY CHEMICALS CORP.
    Inventors: Noriaki Kudo, Minoru Nagashima
  • Patent number: 6218536
    Abstract: 1,2-Bis-adducts of stable hindered nitroxide compounds with substituted ethylenes are prepared by reacting two equivalents of nitroxyl compound with an ethylenically unsaturated compound such as styrene or an acrylate ester. These adducts are very effective inhibitors to prevent the premature polymerization of ethylenically unsaturated monomers when such monomers are distilled, processed or stored.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: April 17, 2001
    Assignee: Ciba Specialty Chemcials Corporation
    Inventors: Glen Thomas Cunkle, Thomas F. Thompson, Volker H. von Ahn, Roland A. E. Winter
  • Patent number: 6191199
    Abstract: Adhesive compositions are rendered stable against degradation caused by ultraviolet light through the incorporation of a highly soluble, high extinction, photostable hydroxyphenyl-s-triazine UV absorber. An example of such compounds is 2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy*-2-hydroxypropyloxy)-5-&agr;-cumylphenyl]-s-triazine (* denotes a mixture of octyloxy, nonyloxy and decyloxy groups). Such compounds exhibit high extinction, excellent photostability and are highly soluble in adhesive formulations. The laminated articles derived from these compositions include, for example, solar control films, films and glazings, UV absorbing glasses and glass coatings, windscreens, retroreflective sheetings and signs, solar reflectors, optical films and the like.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: February 20, 2001
    Assignee: Ciba Speciatly Chemicals Corporation
    Inventors: Walter Renz, Mervin Gale Wood, Jr., Joseph Suhadolnik, Ramanathan Ravichandran, Revathi Iyengar
  • Patent number: 6174940
    Abstract: The present invention relates to mixtures comprising the compound I in a proportion of 65-95% by weight, the compound II in a proportion of 5-35% by weight and the compound III in a proportion of 0-10% by weight wherein the substituents are as defined in the description, and to mixtures with other compounds. The mixtures are suitable for stabilizing organic material against the effect of light and heat.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: January 16, 2001
    Assignee: Clariant GmbH
    Inventors: Thomas St{umlaut over (a)}hrfeldt, Mathias Mehrer, Matthias Z{umlaut over (a)}h, Gerhard Pfahler
  • Patent number: 6126861
    Abstract: The invention relates to novel compositions of photoreactive, UV-light absorbing, low molecular weight polyalkylpiperidines and non-photoreactive low molecular weight sterically hindered polyalkylpiperidines as well as to masterbatch compositions comprising the novel compositions. The invention relates further to a process for enhancing the light stability of organic material, the stabilized organic material and its use.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: October 3, 2000
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Karl Bechtold