Nonhetero Nitrogen Patents (Class 524/103)
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Patent number: 7214729Abstract: 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: GrantFiled: September 30, 2003Date of Patent: May 8, 2007Assignee: Ciba Specialty Chemicals Corp.Inventors: Nikolas Kaprinidis, Nicola Lelli
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Patent number: 7169835Abstract: 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: GrantFiled: August 9, 2004Date of Patent: January 30, 2007Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 7132467Abstract: 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: GrantFiled: January 23, 2003Date of Patent: November 7, 2006Assignee: Ciba Specialty Chemicals Corp.Inventors: Erich Kramer, Alfred Georges Oertli, Markus Grob
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Patent number: 7109260Abstract: 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: GrantFiled: September 30, 2003Date of Patent: September 19, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Nikolas Kaprinidis, Nicola Lelli
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Patent number: 7084197Abstract: 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: GrantFiled: June 20, 2002Date of Patent: August 1, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Hui Chin, Peter Shelsey Solera, Douglas Wayne Horsey, Nikolas Kaprinidis
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Patent number: 7037962Abstract: 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: GrantFiled: October 20, 2003Date of Patent: May 2, 2006Assignee: Ciba Specialty Chemicals Corp.Inventors: Mara Destro, Michela Bonora, Galileo Magnani
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Patent number: 7034069Abstract: 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: GrantFiled: June 24, 2002Date of Patent: April 25, 2006Assignee: Ciba Specialty Chemicals Corp.Inventors: Dario Lazzari, Gianluca Ferri, Massimiliano Sala, Michela Bonora, Manuele Vitali
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Patent number: 7026380Abstract: 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: GrantFiled: March 24, 2003Date of Patent: April 11, 2006Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 7019053Abstract: 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: GrantFiled: January 21, 2003Date of Patent: March 28, 2006Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 6946517Abstract: 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: GrantFiled: October 22, 2002Date of Patent: September 20, 2005Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 6908956Abstract: 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: GrantFiled: January 31, 2001Date of Patent: June 21, 2005Assignee: Basf AktiengesellschaftInventors: Heinz Friedrich Sutoris, Sylke Haremza, Hubert Trauth, Erik Hofmann, Manfred Appel
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Patent number: 6903153Abstract: 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: GrantFiled: December 26, 2001Date of Patent: June 7, 2005Assignee: DSM IP Assets B.V.Inventors: Esther Wessels, Johannes F. Higler
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Patent number: 6897250Abstract: 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: GrantFiled: November 1, 2000Date of Patent: May 24, 2005Assignee: Asahi Denka Kogyo K. K.Inventors: Yuko Takahashi, by, Toshinori Yukino, Mitsuru Fukushima, Masayuki Takahashi
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Patent number: 6869992Abstract: 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: GrantFiled: February 15, 2001Date of Patent: March 22, 2005Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 6828364Abstract: 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: GrantFiled: July 5, 2001Date of Patent: December 7, 2004Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 6812322Abstract: 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: GrantFiled: December 26, 2002Date of Patent: November 2, 2004Assignee: BASF AktiengesellschaftInventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
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Patent number: 6812323Abstract: 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: GrantFiled: September 14, 2000Date of Patent: November 2, 2004Assignee: BASF AktiengesellschaftInventors: Ulrike Breiner, Manfred Julius, Rainer Neuberg, Robert Weiss, Axel Wilms, Harry Y. Hu
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Patent number: 6809134Abstract: 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: GrantFiled: October 15, 2002Date of Patent: October 26, 2004Assignee: SIEMENS AktiengesellschaftInventors: Robert Greiner, Heinrich Kapitza, Manfred Ochsenkuehn
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Publication number: 20040171720Abstract: Thermoplastic molding compositions comprising, as substantive componentsType: ApplicationFiled: December 10, 2003Publication date: September 2, 2004Inventors: Burkhardt Dames, Wolfgang Saurer
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Patent number: 6774205Abstract: 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: GrantFiled: December 26, 2002Date of Patent: August 10, 2004Assignee: BASF AktiengesellschaftInventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
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Patent number: 6762226Abstract: 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 descriType: GrantFiled: October 15, 2002Date of Patent: July 13, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Alessandro Zedda, Graziano Zagnoni, Massimiliano Sala, Dario Lazzari, Stephen Mark Andrews
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Patent number: 6727300Abstract: 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: GrantFiled: October 25, 2001Date of Patent: April 27, 2004Assignee: Cytec Technology Corp.Inventor: Thomas P. Sassi
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Patent number: 6683124Abstract: 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: GrantFiled: September 27, 2001Date of Patent: January 27, 2004Assignee: Clariant Finance (BVI) LimitedInventor: Joseph R. Webster
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Patent number: 6642383Abstract: 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 otherType: GrantFiled: May 15, 2001Date of Patent: November 4, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Graziano Zagnoni, Mirko Rossi, Alessandro Zedda, Valerio Borzatta, Stephen Mark Andrews
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Patent number: 6638997Abstract: 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: GrantFiled: September 27, 2001Date of Patent: October 28, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: James P. Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera
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Publication number: 20030149143Abstract: 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: ApplicationFiled: July 29, 2002Publication date: August 7, 2003Inventors: 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
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Patent number: 6599963Abstract: 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: GrantFiled: August 1, 2001Date of Patent: July 29, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: 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
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Patent number: 6583250Abstract: 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: GrantFiled: November 20, 1998Date of Patent: June 24, 2003Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Paul Birnbrich, Herbert Fischer, Manfred Gorzinski, Thomas Huver
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Publication number: 20030083406Abstract: The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) 1Type: ApplicationFiled: September 27, 2002Publication date: May 1, 2003Inventors: Sylke Haremza, Jurgen Krockenberger, Manfred Appel, Hubert Trauth, Alexander Aumuller
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Patent number: 6555604Abstract: Use of a pigment of formula (I) where both R are Cl or COOCH3 for the coloration of polyolefins which do not warp.Type: GrantFiled: August 28, 2000Date of Patent: April 29, 2003Assignee: Clariant Finance (BVI) LimitedInventor: Mohamed Sidqi
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Publication number: 20030069337Abstract: 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: ApplicationFiled: July 23, 2002Publication date: April 10, 2003Inventor: Francois Gugumus
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Patent number: 6545071Abstract: 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: GrantFiled: August 14, 1997Date of Patent: April 8, 2003Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 6541547Abstract: 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: GrantFiled: September 9, 1996Date of Patent: April 1, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Schmutz, Erich Kramer, Hans Zweifel, Bruno Rotzinger
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Patent number: 6521681Abstract: 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: GrantFiled: June 23, 1997Date of Patent: February 18, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Jürg Zingg, Jean-Roch Pauquet, Christoph Kröhnke
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Patent number: 6508847Abstract: 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: GrantFiled: December 20, 2000Date of Patent: January 21, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin Wood, Ramanathan Ravichandran, Douglas Wayne Horsey, Anunay Gupta, Deborah DeHessa, Luther A. R. Hall, Andrea Smith, Stephen Mark Andrews
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Patent number: 6476105Abstract: 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: GrantFiled: October 9, 2001Date of Patent: November 5, 2002Assignees: Hyundai Motor Company, Honeywell Korea Co., Ltd.Inventors: Kie-Youn Jeong, Sang-Rok Lee, Hee-Won Seo
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Patent number: 6423817Abstract: 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: GrantFiled: December 31, 1996Date of Patent: July 23, 2002Assignee: BASF AktiengesellschaftInventors: Klaus Weinerth, Karlheinz Mell, Paul Matthies, Ludwig Beer
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Publication number: 20020077393Abstract: A stabilizer mixture containingType: ApplicationFiled: July 5, 2001Publication date: June 20, 2002Inventor: Francois Gugumus
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Publication number: 20020077394Abstract: 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 comprisingType: ApplicationFiled: October 9, 2001Publication date: June 20, 2002Inventors: Francois Gugumus, Nicola Lelli
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Patent number: 6380285Abstract: 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: GrantFiled: February 1, 2000Date of Patent: April 30, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin Wood, Ramanathan Ravichandran, Douglas Wayne Horsey, Anunay Gupta, Deborah DeHessa, Luther A. R. Hall, Andrea Smith, Stephen Mark Andrews
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Patent number: 6380286Abstract: 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: GrantFiled: March 24, 1999Date of Patent: April 30, 2002Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Publication number: 20020032255Abstract: The invention relates to a copolyether ester composition protected against the influence of light that containsType: ApplicationFiled: April 26, 2001Publication date: March 14, 2002Inventors: Geert G.I.V. Bonte, Pieter Gijsman
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Patent number: 6353044Abstract: 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: GrantFiled: November 8, 1999Date of Patent: March 5, 2002Assignee: Great Lakes Chemical Italia S.R.L.Inventors: Luciana Crisci, Fabio Broussard, Carlo Neri, Mauro Adovasio
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Publication number: 20010056138Abstract: 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: ApplicationFiled: January 6, 2000Publication date: December 27, 2001Inventor: DIDIER VASSEUR
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Patent number: 6297314Abstract: 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: GrantFiled: January 12, 2000Date of Patent: October 2, 2001Assignee: BASF Coatings AGInventors: Horst Hintze-Brüning, Patrick Van Ende
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Publication number: 20010005730Abstract: 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: ApplicationFiled: December 7, 2000Publication date: June 28, 2001Applicant: SONY CHEMICALS CORP.Inventors: Noriaki Kudo, Minoru Nagashima
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Patent number: 6218536Abstract: 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: GrantFiled: October 7, 1998Date of Patent: April 17, 2001Assignee: Ciba Specialty Chemcials CorporationInventors: Glen Thomas Cunkle, Thomas F. Thompson, Volker H. von Ahn, Roland A. E. Winter
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Patent number: 6191199Abstract: 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: GrantFiled: May 3, 1999Date of Patent: February 20, 2001Assignee: Ciba Speciatly Chemicals CorporationInventors: Walter Renz, Mervin Gale Wood, Jr., Joseph Suhadolnik, Ramanathan Ravichandran, Revathi Iyengar
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Patent number: 6174940Abstract: 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: GrantFiled: August 13, 1998Date of Patent: January 16, 2001Assignee: Clariant GmbHInventors: Thomas St{umlaut over (a)}hrfeldt, Mathias Mehrer, Matthias Z{umlaut over (a)}h, Gerhard Pfahler
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Patent number: 6126861Abstract: 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: GrantFiled: October 13, 1998Date of Patent: October 3, 2000Assignee: Clariant Finance (BVI) LimitedInventor: Karl Bechtold