Two Or More Nitrogen Rings Patents (Class 524/102)
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Patent number: 7541398Abstract: The present invention includes compositions and methods of making an antimicrobial polymer by mixing sterically hindered N-halo-amines with polymeric materials with a source of halides selected from sodium di-X-isocyanurate, sodium hypohalite, N—X-succinimide, and calcium hypohalite, and mixtures and combinations thereof, wherein X is selected from Cl or Br, and wherein the sterically hindered halo-amines are charged before or after mixing with the polymers, or combinations thereof.Type: GrantFiled: January 3, 2006Date of Patent: June 2, 2009Assignee: Board of Regents, The University of Texas SystemInventors: Yuyu Sun, Zhaobin Chen
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Publication number: 20090111917Abstract: The present invention relates to non-agricultural articles which keep their properties during the use and degrade later on, until total disintegration and disappearance of the plastic. The invention further relates to a method for controlling the weathering resistance and the degradation of non-agricultural articles. The desired effect is obtained with specific combinations of degradant metal salts and stabilizers. The non-agricultural article of the present invention comprises an organic polymer, an organic salt of Fe, Ce, Co, Mn, Cu or V and one or more sterically hindered amine compounds.Type: ApplicationFiled: December 18, 2008Publication date: April 30, 2009Inventor: Michela Bonora
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Patent number: 7488433Abstract: Synergistic stabilizer compositions are employed to stabilize halogen-containing vinyl polymers from, for example, degradation and discoloration. The stabilizer compositions comprise a zinc compound, a dihydropyridine or polydihydropyridine, a beta-diketone and a latent mercaptan.Type: GrantFiled: June 29, 2005Date of Patent: February 10, 2009Assignee: Rohm and Haas CompanyInventor: Lionel R. Price
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Publication number: 20090023844Abstract: A polymer composition having an iodine value of no less than 0.1 and no more than 0.55 is obtained by adding a light stabilizer such as N,N?-bis-(2,2,6,6-tetramethyl-4-piperidinyl)-N,N?-bis-formyl-hexamethylenediamine and an antioxidant such as 2-[1-(2-hydroxy-3,5-di-t-pentylphenyl)ethyl]-4,6-di-t-pentylphenyl acrylate to an alicyclic structure-containing polymer having a low iodine value; and an optical molded body having an iodine value of no less than 0.1 and no more than 0.6 is obtained by molding this polymer composition containing an alicyclic structure-containing polymer and a light stabilizer and/or an antioxidant.Type: ApplicationFiled: February 1, 2007Publication date: January 22, 2009Applicant: ZEON CORPORATIONInventor: Kazuhiro Takahashi
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Patent number: 7470734Abstract: Polymeric substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of (i.) at least one compound selected from the group consisting of nitroxyl stabilizers, hydroxylamine stabilizers, nitrone stabilizers, substituted hydroxylamine stabilizers, amine oxide stabilizers, benzofuranone stabilizers, phosphite and phosphonite stabilizers, quinone methide stabilizers and monoacrylate esters of 2,2?-alkylidenebisphenol stabilizers and (ii.) at least one compound selected from the group consisting of brominated flame retardants, phosphorus containing flame retardants and inorganic flame retardants such as ammonium polyphosphate or decabromodiphenyl oxide; wherein the amount of organic or inorganic flame retardant of component (ii.) required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when component (i.) is not present.Type: GrantFiled: December 7, 2005Date of Patent: December 30, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Malisa V. Troutman, Ramanathan Ravichandran, Rangarajan Srinivsan, Roswell Easton King, Douglas Wayne Horsey
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Patent number: 7468406Abstract: A durable colored article having fluorescent properties comprises a substantially solventless polyvinyl chloride matrix, a thioxanthene fluorescent dye, and a secondary or tertiary hindered amine light stabilizer having a molecular weight less than about 1000 grams/mole. The invention has the advantage in that it provides a flexible polyvinyl chloride film that exhibits durable fluorescent colors.Type: GrantFiled: August 24, 2006Date of Patent: December 23, 2008Assignee: 3M Innovative Properties CompanyInventors: Kenneth M. White, Lee A. Pavelka, Vera L. Lightle, James C. Coderre
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Patent number: 7449514Abstract: A durable colored article having fluorescent properties comprises a substantially solventless polyvinyl chloride matrix, a thioxanthene fluorescent dye, and a secondary or tertiary hindered amine light stabilizer having a molecular weight less than about 1000 grams/mole. The invention has the advantage in that it provides a flexible polyvinyl chloride film that exhibits durable fluorescent colors.Type: GrantFiled: November 26, 2002Date of Patent: November 11, 2008Assignee: 3M Innovative Properties CompanyInventors: Kenneth M. White, Lee A. Pavelka, Vera L. Lightle, James C. Coderre
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Publication number: 20080269381Abstract: A non-aqueous pigment dispersion includes a diketopyrrolo-pyrrole pigment, a polymeric dispersant, and a dispersion synergist in a dispersion medium wherein the dispersion synergist is a quinacridone derivative containing at least one acid group or a salt thereof.Type: ApplicationFiled: November 28, 2006Publication date: October 30, 2008Applicant: AGFA GRAPHICS NVInventor: Geert Deroover
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Patent number: 7425590Abstract: Polymer compositions comprising: (A) at least one polyester (A) comprising: (1) diacid residues comprising about 70 to 100 mole percent phthalic acid residues; and 0 to about 30 mole percent of modifying dicarboxylic acid residues, wherein the total mole percent of diacid residues is equal to 100 mole percent; and (2) diol residues comprising about 0 to 45 mole percent 1,4-cyclohexanedimethanol residues, and 100 to about 55 mole percent of other alkylene glycol residues, wherein the total mole percent of diol residues is equal to 100 mole percent; and (B) a miscible blend of: (1) at least one polycarbonate (B) of bisphenol A; (2) at least one polyester (C) consisting essentially of 1,4-cyclohexanedicarboxylic acid residues and at least one glycol selected from 70 to 100 mole percent of residues of 1,4-cyclohexanedimethanol residues and 0 to 30 mole percent of residues of polytetramethylene glycol.Type: GrantFiled: July 12, 2005Date of Patent: September 16, 2008Assignee: Eastman Chemical CompanyInventor: Wesley Raymond Hale
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Patent number: 7419513Abstract: Compounds which have a benzotriazole and a hindered amine moiety in the same molecule are typified by the formula A wherein at least one of G2, R1 or R2 contains a hindered amine moiety are extremely effective light stabilizers having both the UV absorbing activity of a benzotriazole and the light stabilizing efficacy of a hindered amine in the same molecule. These compounds are effective stabilizers for thermoset resin compositions, thermoplastic resin compositions, for photographic applications, for pigmented or dyed polypropylene, polyamide or polyester fibers, and for white, dyed, dipped, unscented and/or scented candle wax against discoloration and fading when incorporated therein alone or in combination with an antioxidant.Type: GrantFiled: September 13, 2004Date of Patent: September 2, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin G. Wood, Jacqueline Lau, Ramanathan Ravichandran, Andrea R. Smith, Joseph Suhadolnik, Peter Solera, Joseph S. Puglisi, Carmen Hendricks-Guy, Stephen D. Pastor, Luther A. R. Hall
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Publication number: 20080118773Abstract: A complex composition characterized by comprising a polymer having repeating units represented by the formula (1) and a metal complex which luminesces in its triplet excited state; and a polymer complex compound characterized by comprising repeating units represented by the formula (1) and a metal complex structure which luminesces in its triplet excited state and by emitting visible light in a solid state. (1) (Ar1 and Ar2 each independently represents a trivalent aromatic hydrocarbon group or trivalent heterocyclic group; Ar3 represents an aromatic hydrocarbon group or heterocyclic group, provided that the ring Ar3 has bonded thereto one or more groups selected from the group consisting of alkyl, alkoxy, alkylthio, alkylsilyl, alkylamino, aryl, aryloxy, arylalkyl, arylalkoxy, arylalkenyl, arylalkynyl, arylamino, monovalent heterocyclic groups, and cyano; and X represents a single bond or connecting group.Type: ApplicationFiled: March 25, 2004Publication date: May 22, 2008Inventors: Satoshi Mikami, Masaaki Yokoyama, Yuichiro Kawamura
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Patent number: 7361702Abstract: The invention provides coating material compositions comprising stable adducts which, at relatively high temperatures, generate radicals that possess initiating activity, and also provides processes for preparing them, and for the use of such coating material compositions. Stable adducts of this kind may be used in order to initiate polymerization of ethylenically unsaturated monomers.Type: GrantFiled: February 12, 2002Date of Patent: April 22, 2008Assignee: BASF AktiengesellschaftInventors: Reinhold Schwalm, Roman Benedikt Raether
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Patent number: 7326740Abstract: Disclosed are natural products composites protected against the deleterious effects of microorganisms comprising at least one natural product, at least one thermoplastic resin, and an effective amount of an antifungal agent. The composites are further advantageously protected against weathering and color formation by the incorporation therein of at least one light stabilizer and at least one compound selected from the group consisting of the oxides, hydroxides or silicates of Ca, Mg, Al and Zn. The light stabilizers are selected from the group consisting of the ultraviolet light absorbers and the sterically hindered amines. The metal oxide is for example CaO. The natural products are for example wood flour, flax, hemp, jute, kenaf, or rice husk. The thermoplastic resin is for example polyethylene or polypropylene. The antifungal agent and potential coadditives are incorporated via melt processing such as extrusion, co-kneading, pultrusion and injection molding.Type: GrantFiled: April 20, 2004Date of Patent: February 5, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Urs Stadler, Gerry Capocci, Shing Li, Melinda Reyes, Heinz Herbst
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Patent number: 7323502Abstract: 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 compound selected from the group consisting of the (a) sterically hindered nitroxyl stabilizers, (b) sterically hindered hydroxylamine stabilizers and (c) sterically hindered alkoxyamine stabilizers and (ii) at least one phosphazene flame retardant. Advantageously, a further flame retardant may be added, without the need of adding an antimony synergist. The compositions of the invention combine good flame retardant properties with light stability and good mechanical properties.Type: GrantFiled: February 27, 2003Date of Patent: January 29, 2008Assignee: Ciba Specialty Chemicals CorporationInventor: Nikolas Kaprinidis
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Patent number: 7297735Abstract: This invention relates to polycarbonate compositions comprising: (A) at least one polycarbonate comprising repeating units derived from a dihydroxyaromatic compound or a dihydroxyaliphatic compound of the formula HO—Y—OH; and (B) at least one salt prepared from the reaction of one or more acidic phosphorus-containing compounds and one or more hindered amine light stabilizers. The polycarbonate compositions exhibit improved hydrolytic stability.Type: GrantFiled: March 5, 2003Date of Patent: November 20, 2007Assignee: Eastman Chemical CompanyInventors: Jason Clay Pearson, Douglas Stephens McWilliams, Gether Irick, Jr., Max Allen Weaver
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Patent number: 7282533Abstract: Plastics comprise sterically hindered, esterified amine (I) which contains less than 100 ppm, based on the weight of (I), of titanium.Type: GrantFiled: July 15, 2004Date of Patent: October 16, 2007Assignee: BASF AktiengesellschaftInventors: Mirko Kreitschmann, Hauke Malz, Thomas Flug, Sylvia Rybicki
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Patent number: 7265171Abstract: The novel transparent polyolefin, polyester or polyamide article disclosed is stabilized against the effects of light, oxygen, heat and agressive chemicals by addition of 0.005-0.30% by weight the polymeric substrate of a hydroxyphenyl triazine UV absorber, and is characterized by its thickness between 1 and 500 ?m. Preferred polyolefin articles thus stabilized are agricultural films containing as further stabilizer a sterically hindered amine. The novel compositions act as selective UV filter especially useful in agriculture.Type: GrantFiled: February 22, 2006Date of Patent: September 4, 2007Assignee: Ciba Specialty Chemicals Corp.Inventors: David George Leppard, François Gugumus, Michela Bonora
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Patent number: 7259198Abstract: The present invention provides polyolefin compositions that are UV stable and suitable for articles that may be exposed to sunlight. The present invention provides, in one aspect, a polyolefin homopolymer or copolymer comprising, by weight of the polyolefin: (a) from 0.001 to 2 wt % hindered amine; (b) from 0.001 to 1 wt % ethoxylated amine; and (c) from 0.001 to 1 wt phenolic antioxidant; wherein the amount of phenolic antioxidant (PA), ethoxylated amine (EA) and hindered amine (HA) present in the composition is satisfied by the equation: PA + EA HA = Q wherein Q ranges from 0.15 to 250 when each component is expressed as a weight percentage. The composition is stable towards UV radiation such that it is useful for any number of articles such as automotive components and other articles that are, for example, injection molded.Type: GrantFiled: June 11, 2003Date of Patent: August 21, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventor: Daniel Vaillant
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Patent number: 7226964Abstract: The present invention relates to the prevention of scorching before crosslinking of a thermoplastic and/or elastomeric composition with peroxides or azo compounds. This is achieved by using a nitroxide in combination with at least one crosslinking promoter (promoter) chosen from group (P) consisting of compounds containing at least one double bond, which may be difunctional or polyfunctional.Type: GrantFiled: April 3, 2003Date of Patent: June 5, 2007Assignee: ARKEMA FranceInventors: Fabien Debaud, Alfredo Defrancisci, Olivier Guerret, Jacques Kervennal
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Patent number: 7214742Abstract: Compounds of the general formula I? in which R1 is H, C1–C12alkyl; C5–C12cycloalkyl; C2–C18alkyl which is interrupted by one or more O; SR4; OR5; or is a group of formula II or III R2, R21 and R3 independently of one another, are H or —Y—T as defined in claim 1, where T is a reactive group selected from OH, acryl- and methacryloxy and arylcarbonate groups, and further symbols are as defined in claim 1, are effective as crosslinking agents for polymeric networks, especially as in flexographic printing plates, coatings, and plastic containers or films. Further provided is a method of protecting the content of a clear or lightly colored plastic container or film against the deleterious effects of ultraviolet radiation, which method comprises permanently and covalently bonding one or more UV absorbing moieties of a durable s-triazine UV absorber via condensation to a suitable polymer component.Type: GrantFiled: November 21, 2002Date of Patent: May 8, 2007Assignee: Ciba Specialty Chemicals Corp.Inventors: Thomas Bolle, Andreas Valet, David George Leppard, Stephen Mark Andrews, Ramanathan Ravichandran, Markus Grob, Dirk Simon
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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: 7205346Abstract: A flame-retardant resin composition comprises a thermoplastic resin; a flame retardant comprising a phosphorus-containing compound (A), a aromatic resin (B), and at least one flame-retardant auxiliary (C) selected from a nitrogen-containing compound and a metal salt of an inorganic acid; and at least one stabilizer auxiliary (D) selected from a compound having a functional group reactive to an active hydrogen atom and a water-repellent compound. The phosphorus-containing compound may be a phosphoric ester. The aromatic resin may be a polyphenylene sulfide-series resin or a polyphenylene oxide-series resin. The nitrogen-containing compound is a salt of an amino group-containing triazine compound with an oxygen acid, a salt of an amino group-containing triazine compound with a hydroxyl group-containing triazine compound, a polyphosphoric acid amide, a cyclic urea compound, or others.Type: GrantFiled: November 28, 2002Date of Patent: April 17, 2007Assignee: Polyplastics Co., Ltd.Inventor: Hatsuhiko Harashina
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Patent number: 7199181Abstract: A stabilizer composition is described and comprises a 2-cyano-3,3-diarylacrylate, a sterically hindered monomeric amine, a sterically hindered phenol and, where appropriate, a chromane derivative and/or an organic phosphite and/or phosphonite. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.Type: GrantFiled: December 13, 2002Date of Patent: April 3, 2007Assignee: BASF AktiengesellschaftInventors: Thomas Heidenfelder, Manfred Appel
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Patent number: 7196135Abstract: A stabilizer composition is described and comprises a 3-arylacrylate, a polymeric compound with molecular weight at least 2000, bearing, on a polymeric framework, side groups having amine functions, where all of the substituents in the ?-position to the amine nitrogen atom are other than hydrogen, and comprises a sterically hindered phenol. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.Type: GrantFiled: December 13, 2002Date of Patent: March 27, 2007Assignee: BASF AktiengesellschaftInventors: Thomas Heidenfelder, Manfred Appel
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Patent number: 7186766Abstract: About 0.001 to 1 part by weight of a phenol component (B1) and/or about 0.001 to 10 parts by weight of an amino acid (B2) are added relative to 100 parts by weight of a polyacetal resin (A) to prepare a polyacetal resin composition. The phenol component (B1) may be a novolak phenol-series resin, a phenol aralkyl-series resin, a polyvinyl phenol-series resin, a polyhydric phenol, a polyphenol, a catechin compound, or a lignin. The amino acid (B2) may be an ?-amino acid, a ?-amino acid, a ?-amino acid, a ?-amino acid, or a derivative of an amino acid. The polyacetal resin composition may further contain an antioxidant, a heat stabilizer, a processing stabilizer, a weather (light)-resistant stabilizer, or a coloring agent. The polyacetal resin composition ensures marked inhibition of formaldehyde emission.Type: GrantFiled: July 1, 2003Date of Patent: March 6, 2007Assignee: Polyplastics Co., Ltd.Inventors: Hatsuhiko Harashina, Hayato Kurita
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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: 7166653Abstract: The novel transparent polyolefin, polyester or polyamide article disclosed is stabilized against the effects of light, oxygen, heat and agressive chemicals by addition of 0.005–0.30% by weight the polymeric substrate of a hydroxyphenyl triazine UV absorber, and is characterized by its thickness between 1 and 500 ?m. Preferred polyolefin articles thus stabilized are agricultural films containing as further stabilizer a sterically hindered amine. The novel compositions act as selective UV filter especially useful in agriculture.Type: GrantFiled: May 6, 2003Date of Patent: January 23, 2007Assignee: Ciba Specialty Chemicals Corp.Inventors: David George Leppard, François Gugumus, Michela Bonora
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Patent number: 7166659Abstract: Compounds of formula I or II where R is an aryl moiety, such as phenyl, naphthyl or biphenylyl, or is phenyl substituted by one or more trifluoromethyl, bromo or cyano, and E1 and E2 are independently hydrogen, alkyl, aralkyl and the like are prepared by reaction of a benzotriazole substituted on the 5-position of the benzo ring by a halogen atom with a arylboronic acid or ester in the presence of a transition-metal catalyst, such as palladium (II) diacetate. The benzotriazole compounds of formula I are particularly efficacious as stabilizers for automotive coatings and candle wax.Type: GrantFiled: March 30, 2004Date of Patent: January 23, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: Stephen D. Pastor, Andrew B. Naughton, Robert Detlefsen, Mervin G. Wood, Joseph Suhadolnik, Anthony DeBellis, Deborah DeHessa
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Patent number: 7148278Abstract: A golf ball including a center, a cover, and, optionally, at least one intermediate layer disposed between the center and the cover, wherein the cover is formed from a polyurethane composition, or a reaction product thereof, including at least one polyol; at least one polyisocyanate; at least one curing agent; and at least one color stabilizer; wherein the color stabilizer is present in an amount sufficient to provide a ?C* of less than about 22 upon exposure to UV light over a timeframe of 1 hour.Type: GrantFiled: July 25, 2003Date of Patent: December 12, 2006Assignee: Acushnet CompanyInventors: David A. Bulpett, Shenshen Wu, Kevin M. Harris, Manjari Kuntimaddi, Mitchell E. Lutz
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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: 7091280Abstract: The present invention relates to a binder composition containing A) at least one aqueous polyurethane-polyurea dispersion and B) at least one stabilizer containing a) at least one amine having a structural unit corresponding to formula (I) ?which has no hydrazide groups, b) at least one compound having a structural unit corresponding to formula (II) —CO—NH—NH—??(II) ?and c) optionally a stabilizing compound other than a) and b). The polyurethane dispersions are manufactured in the presence of components a) and b). It is possible for components a) and b), depending on the grade used, to be incorporated into the polymer framework as structural units.Type: GrantFiled: January 14, 2003Date of Patent: August 15, 2006Assignee: Bayer AktiengesellschaftInventors: Thorsten Rische, Karin Naujoks, Jürgen Meixner, Thomas Feller, Eberhard König
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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: 7030229Abstract: The present invention relates to an azo dye of formula I, II or III: (formula I, II or III); wherein R1 and R2 are each independently of the other one or more divalent groups selected from alkylene, arylene, aralkylene and cycloalkylene, which may be interrupted by —O—, —S—, —NH—, —NR8—, —COO—, —CONH— or —CONR9—, wherein R8 and R9 are alkyl or aryl, X is —O— or —NH—, R3 is —CN or —CONH2, R4 is methyl or trifluoromethyl and R5, R6, R7 and R8 are each independently of the others hydrogen, halogen or —CN, to a process for the preparation thereof and to the use thereof in a method of producing mass-colored plastics or polymeric color particles.Type: GrantFiled: May 27, 2003Date of Patent: April 18, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Athanassios Tzikas, Antoine Clément, Urs Lauk
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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: 6998431Abstract: Process for the production of an alpha olefin polymer and a process for the treatment of the alpha olefin polymer. A polymerization feed containing an alpha olefin, such as propylene, is supplied to the reactor to produce a thermoplastic polymer product involving a homopolymer or a copolymer. A product stream containing the polymer is withdrawn from the polymerization reactor and the polymer product is recovered from the product stream. The polymer product is then processed to produce the polymer product in a granular or pelletized form. A hindered amine light stabilizer is oxidized with an oxidizing agent under conditions to convert at least a portion of the amine groups to nitroxyl groups. The oxidized hindered amine light stabilizer is then supplied to the polymer product prior to heating and processing of the polymer product.Type: GrantFiled: March 28, 2002Date of Patent: February 14, 2006Assignee: Fina Technology, Inc.Inventor: Lisa Albe
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Patent number: 6992124Abstract: The present invention relates to a synergistic additives mixture for producing calendered polyolefin articles, comprising A) at least one component from the group of peroxide-destroying phosphorus or sulfur compounds, B) at least one component from the group of phenolic antioxidants, C) at least one component from the group of sterically hindered amines, and D) if desired, further additives. Using this additive mixture prevents sticking to the hot roll surfaces and reduces the degradation of the polymer.Type: GrantFiled: February 3, 1999Date of Patent: January 31, 2006Assignee: Clariant GmbHInventors: Christian Wick, Gerhard Pfahler, Alexander Lichtblau
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Patent number: 6949595Abstract: A golf ball including a center, a translucent cover, and, optionally, at least one intermediate layer disposed between the center and the cover. The cover is preferably formed from a polyurethane composition or a reaction product of isocynate. The cover is further comprised at least one color stabilizer and/or an optical enhancer. Preferably, the intermediate layer contributes to the overall appearance of the ball and can contain pigment and/or optical brighteners.Type: GrantFiled: March 7, 2003Date of Patent: September 27, 2005Assignee: Acushnet CompanyInventors: William E. Morgan, Kevin M. Harris, Shawn Ricci
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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: 6924330Abstract: A compound of the formula (I) wherein G1, G2, G3 and G4 are independently of one another C1-C18alkyl or C5-C12cycloalkyl or the radicals G1 and G2 and the radicals G3 and G4 form independently of one another, together with the carbon atom they are attached to, C5-C12cycloalkyl; R is hydrogen, C1-C18alkyl, oxyl, —OH, —CH2CN, C3-C6alkenyl, C3-C8alkynyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C8acyl, C1-C18alkoxy, C1-C18hydroxyalkoxy, C2-C18alkenyloxy, C5-C12cycloalkoxy, C7-C12phenylalkoxy unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C18alkanoyloxy, (C1-C18alkoxy)carbonyl, glycidyl or a group —CH2CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G1, G2, G3, G4 and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material agType: GrantFiled: February 19, 2001Date of Patent: August 2, 2005Assignee: Ciba Specialty Chemicals Corp.Inventors: Dario Lazzari, Graziano Zagnoni
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Patent number: 6918958Abstract: The invention relates to pigment dispersants of the formula (I), and to pigment preparations including at least one organic pigment and at least one pigment disperant of the formula (I): wherein Q1, R1, R2, E+, G+, s and n are defined in the specification.Type: GrantFiled: January 31, 2002Date of Patent: July 19, 2005Assignee: Clariant GmbHInventors: Joachim Weber, Gerhard Wilker, Klaus Brychcy, Erwin Dietz
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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: 6881772Abstract: A stabilizer mixture containing (A) a sterically hindered amine compound, (B) an organic salt of Ca or an inorganic salt of Ca and (C) an organic salt of Mg, an inorganic salt of Mg, an organic salt of Zn or an inorganic salt of Zn; with the proviso that component (C) is Mg-hydroxide-carbonate, Zn-hydroxide-carbonate or dolomite, when component (B) is calcium stearate.Type: GrantFiled: June 7, 2002Date of Patent: April 19, 2005Assignee: Ciba Specialty Chemicals Corp.Inventor: François Gugumus
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Patent number: 6881773Abstract: Stabilized thermoplastic polymer, especially polyolefin compositions comprising a flame retardant selected from b1) melamin based flame retardants, or one of the compounds b2) bis-(hexachlorocyclopentadieno)cyclooctane, b3) tris-(2,3-dibromopropyl)-isocyanurate, b4) ethylene-bis-tetrabromophthalimide; b5) 1,2,5,6,9,10-hexabromo-cyclo-dodecan, b6) ethane-1,2-bis(pentabromophenyl); and c) a sterically hindered amine light stabilizer of the hydrocarbyloxyamine or hydroxyhydrocarbyloxyamine class and optional further components combine optimum outdoor weathering stability and good flame retardant properties.Type: GrantFiled: December 10, 2001Date of Patent: April 19, 2005Assignee: Ciba Specialty Chemicals Corp.Inventors: Jürg Zingg, Jürgen Link
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Patent number: 6878762Abstract: A polyamide resin composition, with a sufficiently high weather resistance even when the polyamide resin contains a pigment containing a metal component such as titanium oxide, or a residual catalyst containing a metal component, is provided by a polyamide resin composition comprising from 0.05 to 2 parts by weight of an N—O—R type low-molecular-weight hindered amine light-resistant stabilizer and a high-molecular-weight hindered amine light-resistant stabilizer per 100 parts by weight as a total of the composition.Type: GrantFiled: September 20, 2002Date of Patent: April 12, 2005Assignee: Ube Industries, Ltd.Inventors: Yoshihiro Urata, Tetsuya Yasui