Two Or More Nitrogen Rings Patents (Class 524/102)
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Patent number: 6525117Abstract: A vinyl chloride polymer composition comprising a zinc pyrithione and an effective amount for stabilization of the biocide of a mixed metal (e.g., magnesium/aluminum or magnesium/aluminum/zinc) hydroxycarbonate (or “hydrotalcite”). A pre-blend of the biocide and hydroxycarbonate stabilizer is also described.Type: GrantFiled: June 7, 2001Date of Patent: February 25, 2003Assignee: Akzo Nobel N.V.Inventor: Joseph W. Burley
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Patent number: 6525131Abstract: Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.Type: GrantFiled: September 18, 2001Date of Patent: February 25, 2003Assignee: Crompton CorporationInventor: Thomas H. Peter
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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: 6518358Abstract: A golf ball comprising a core and a cover layer wherein the cover is formed of a polyurethane composition comprising a prepolymer comprising a saturated diisocyanate and a curing agent, and a UV absorber.Type: GrantFiled: August 8, 2001Date of Patent: February 11, 2003Assignee: Acushnet CompanyInventor: Shenshen Wu
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Patent number: 6512044Abstract: The present invention provides a coating composition comprising a) one or more polyester resins (A), b) one or more polyacrylate resins (B), c) one or more di- and/or polyisocyanates (C) having 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), where 1.) the polyester (A) has an OH number of from 80 to 200 mg KOH/g and an acid number <10 mg KOH/g, 2.) the polyacrylate resin (B) has an OH number of from 80 to 200 mg KOH/g and an acid number <20 mg KOH/g, 3.) the light stabilizer (L2) based on sterically hindered amines is amino ether functionalized, and 4.) the light stabilizer (L1) is included herein in an amount of at least 3% by weight, based on the coating composition.Type: GrantFiled: May 15, 2001Date of Patent: January 28, 2003Assignee: BASF Coatings AGInventor: Guido Wilke
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Patent number: 6509399Abstract: This invention relates generally to para-tertiary alkyl phenyl substituted pyrimidines and triazines and the use thereof to protect against degradation by environmental forces, inclusive of ultraviolet light, actinic radiation, oxidation, moisture, atmospheric pollutants and combinations thereof. The new class of para-tertiary alkyl phenyl substituted pyrimidines and triazines includes two tertiary alkylated phenyl groups, and a resorcinol or substituted resocinol group attached to the triazine or pyrimidine ring. These materials may, under the appropriate circumstances, be bonded to formulations comprising coatings, polymers, resins, organic compounds and the like via reaction of the bondable functionality with the materials of the formulation. A method for stabilizing a material by incorporating such para-tertiary alkyl phenyl substituted pyrimidines and triazines is also disclosed.Type: GrantFiled: May 18, 2001Date of Patent: January 21, 2003Assignee: Cytec Technology CorpInventors: Ram B. Gupta, Dennis J. Jakiela
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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: 6509401Abstract: The present invention relates to a synergistic flame retardant combination for thermoplastic polymers which comprises as component A a salt of 1-hydroxydihydrophosphole oxides of the formula (Ia) or formula (Ib) and/or 1-hydroxyphospholane oxides of the formula (II) and as component B a nitrogen compound of the formula (III) to (VIII) or a mixture of the compounds designated by the formulae in which the substituents are as defined in the description.Type: GrantFiled: August 27, 1998Date of Patent: January 21, 2003Assignee: Clariant GmbHInventors: Elke Jenewein, Bernd Nass, Wolfgang Wanzke
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Patent number: 6492442Abstract: Described is a stabilizer composition comprising a 3-arylacrylic ester, a polymeric compound having a molecular weight of at least 2000 which carries, on a polymeric framework, side groups having secondary amine functions, all substituents positioned to the amine nitrogen being other than hydrogen, a chroman derivative, and an organic phosphite and/or phosphonite. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane against light, oxygen and heat.Type: GrantFiled: October 2, 2000Date of Patent: December 10, 2002Assignee: BASF AktiengesellschaftInventors: Manfred Appel, Hubert Trauth, Jürgen Krockenberger, Alexander Aumüller
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Patent number: 6489383Abstract: 2H-Benzotriazole UV absorbers substituted at the 3-position or at the 5-position of the phenyl ring by a 1,1-diphenylalkyl moiety, particularly a 1,1-diphenylethyl group, are particularly photostable in automotive coatings, and are of low color and exhibit low volatility in thermoplastic compositions.Type: GrantFiled: February 7, 2002Date of Patent: December 3, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin G. Wood, Ramanathan Ravichandran, Joseph Suhadolnik, David Bramer, Jacqueline Lau, Anthony DeBellis
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Hindered amine compound, resin composition, polyurethane fiber and production method and use thereof
Patent number: 6486238Abstract: A hindered amine compound having thesolubility in an acidic solution of 5.0×10−3 eq./liter or less comprising at least two specific organic groups in a specific weight ratio in a molecule, or at least two specific monomeric units, which can be used as a stabilizer of a resin.Type: GrantFiled: December 20, 1999Date of Patent: November 26, 2002Assignee: Toyo Boseki Kabushiki KaishaInventors: Kota Kitamura, Chihiro Oshimo, Genei Matsukawa, Futoshi Ishimaru -
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: 6472050Abstract: Polyvinyl chloride (“PVC”) compositions and articles are provided which are suitable for fabricating flexible, reflective roll-up roadway signs in which a fluorescent perylene imide dye is present in the PVC reflective layer. The compositions afford enhanced fluorescence durability of perylene imide fluorescent dyes in the articles through the combination of a polymeric hindered amine light stabilizing compound having molecular weight greater about 1500, and a benzophenone ultraviolet absorbing compound. The compositions and articles preferably further comprise a polymeric plasticizer having molecular weight in the range of about 2000 to about 8000 to provide enhanced retention of retroreflectivity in flexible PVC highway signs.Type: GrantFiled: December 30, 1999Date of Patent: October 29, 2002Assignee: Avery Dennison CorporationInventor: Drew J. Buoni
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Patent number: 6455617Abstract: The invention concerns the use, for increasing the durability of moulds made of silicone elastomer crosslinkable by a poly addition or polycondensation reaction, of additive capable of stabilizing the silicone elastomer constituting the mold with respect to materials to be molded, of an additive selected among: (a) antioxidant additives comprising, in their structure additives containing at least one R—Sq—R′ group in which R and R′ are monovalent hydrocarbon groups with at least 3 carbon atoms or a monovalent hydrocarbon group with an ester bond or R and R′ together form a cycle, q being a whole number between 1 and 3 inclusively, (b) additives inhibitors of free radicals capable, in moulding conditions of generating radicals ═N—O; the invention concerns the synergistic combination of (a)+(b), the synergistic combination of (a) and/or (b) with phosphites (c), except for the use of bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate as only additive in a silicType: GrantFiled: June 23, 2000Date of Patent: September 24, 2002Assignee: Rhodia ChimieInventors: Michel Gay, Fabienne Howe, Christian Pusineri, Joëlle Viennet
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Publication number: 20020120042Abstract: 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 1Type: ApplicationFiled: February 22, 2002Publication date: August 29, 2002Inventor: Francois Gugumus
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Patent number: 6433044Abstract: The present invention provides a methyl methacrylate resin composition exhibiting superior durability without impairing the transparency inherent to a methyl methacrylate resin, which comprises a methyl methacrylate resin and a 2-(1-arylalkylidene)malonic acid ester in an amount of 0.0005 to 0.1 parts by weight per 100 parts by weight of the methyl methacrylate resin.Type: GrantFiled: July 24, 2001Date of Patent: August 13, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Tomohiro Maekawa, Kenji Manabe
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Patent number: 6420461Abstract: The present invention relates to novel compounds of the formula (III) in which the substituents are as defined in the description, to a process for their preparation and to mixtures with other compounds. The compounds of the formula (III) are suitable for stabilizing organic material against the effect of light and heat.Type: GrantFiled: November 12, 1999Date of Patent: July 16, 2002Assignee: Clariant GmbHInventors: Thomas Stährfeldt, Mathias Mehrer, Matthias Zäh, Gerhard Pfahler
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Patent number: 6420462Abstract: A new process is described for the preparation of a compound of the formula I wherein R1, R2, R3 and R4, independently of each other, are C1-C8alkyl or C1-C5hydroxyalkyl, or R1 and R2 together with the carbon atom they are attached to are C5-C12cycloalkyl or R3 and R4 together with the carbon atom they are attached to are C5-C12cycloalkyl; R5, R6, R7, R8 and R9, independently of each other, are H, C1-C8alkyl, C2-C8alkenyl, C5-C12aryl, C1-C4haloalkyl, an electron withdrawing group, or C1-C12aryl which is substituted by a residue selected from C1-C4alkyl, C1-C4alkoxy, halogen; and R7 and R8 together may also form a chemical bond; and R is an organic linking group containing 2-500 carbon atoms and forming, together with the carbon atoms it is directly connected to and the nitrogen atom, a substituted, 5-, 6 or 7-membered cyclic ring structure; characterized in that a compound of the formula II is oxidized.Type: GrantFiled: June 15, 2000Date of Patent: July 16, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Alessandro Zedda, Gianluca Ferri, Massimiliano Sala
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Patent number: 6420463Abstract: 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: February 21, 2001Date of Patent: July 16, 2002Assignee: Ciba Specialty Chemicals Corp.Inventors: 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: 20020086921Abstract: 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 1Type: ApplicationFiled: April 2, 2001Publication date: July 4, 2002Inventors: Alessandro Zedda, Graziano Zagnoni, Massimiliano Sala, Dario Lazzari, Stephen Mark Andrews
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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: 6403681Abstract: 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: February 21, 2001Date of Patent: June 11, 2002Assignee: 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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Patent number: 6391949Abstract: 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: February 22, 2001Date of Patent: May 21, 2002Assignee: 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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Patent number: 6387984Abstract: The present invention provides an aqueous ink composition for ball-point pens comprising a titanium oxide as a white pigment, a viscosity modifier and flat-shaped resin particles. The color of the aqueous ink composition can be adjusted by coloring agents (such as a pigment). The viscosity of the aqueous ink composition is 100 cps to 20,000 cps at 20° C. The average particle diameter of said flat-shaped resin particles is 0.05 &mgr;m to 10 &mgr;m and the content thereof is 1% by weight to 35% by weight with respect to the total amount of the aqueous ink composition. The content of the titanium oxide is 5% by weight to 55% by weight with respect to the total amount of the aqueous ink composition. As a viscosity modifier, a polysaccharide is used and the content thereof is 0.1% by weight to 2% by weight with respect to the total amount of the aqueous ink composition.Type: GrantFiled: June 7, 2000Date of Patent: May 14, 2002Assignee: Sakura Color Products CorporationInventor: Tadaaki Ito
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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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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: 6376584Abstract: Hindered amines substituted on the N-atom with an hydroxy-substituted alkoxy moiety are particularly effective in stabilizing organic polymer 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 otherwise attainable.Type: GrantFiled: February 27, 2001Date of Patent: April 23, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: James Peter Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera, Christophe Bulliard
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Patent number: 6368520Abstract: Stabilizer mixture comprising, for example, a compound of the formula and, for example, a compound of the formulaType: GrantFiled: June 24, 1998Date of Patent: April 9, 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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Publication number: 20020028861Abstract: The contents of clear or lightly colored plastic containers or films are protected from ultraviolet radiation by the incorporation of certain UV absorbers of the class of durable benzotriazoles and tris-aryl-s-triazines in the container or film. Contents to be protected include foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, shampoos and the like.Type: ApplicationFiled: January 29, 2001Publication date: March 7, 2002Inventors: Stephen Mark Andrews, Joseph Suhadolnik, Mervin Gale Wood
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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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Patent number: 6353042Abstract: An ultraviolet light stabilization additive package is used in an encapsulant material that may be used in solar cell modules, laminated glass and a variety of other applications. The ultraviolet light stabilization additive package comprises a first hindered amine light stabilizer and a second hindered amine light stabilizer. The first hindered amine light stabilizer provides thermal oxidative stabilization, and the second hindered amine light stabilizer providing photo-oxidative stabilization.Type: GrantFiled: July 24, 1997Date of Patent: March 5, 2002Assignee: Evergreen Solar, Inc.Inventors: Jack I. Hanoka, Peter P. Klemchuk
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Publication number: 20020010235Abstract: Hindered amine compounds containing a group of the formula 1Type: ApplicationFiled: August 1, 2001Publication date: January 24, 2002Inventors: 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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Publication number: 20020006992Abstract: The present invention relates to a synergistic additives mixture for producing calendered polyolefin articles, comprisingType: ApplicationFiled: February 3, 1999Publication date: January 17, 2002Inventors: CHRISTIAN WICK, GERHARD PFAHLER, ALEXANDER LICHTBLAU
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Patent number: 6337367Abstract: An improved silane cross-linked insulation material, a method of making, and a non-shielded electrical power cable including such insulation material which has both weathering and track resistant properties is disclosed comprising (a) a linear low density polyethylene base resin, (b) a black masterbatch comprising a conductive carbon black and a polymer, (c) an antioxidant and (d) an ultraviolet ray inhibitor. The insulation material meets Federal Aviation Administration technical requirements for airport lighting applications.Type: GrantFiled: July 11, 2000Date of Patent: January 8, 2002Assignee: Pirelli Cables and Systems, LLCInventor: Kyle Edward Cope
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Publication number: 20020002236Abstract: Preparing pigment preparations by mixing a dyestuff with a monomer and simultaneously polymerizing the monomers in an extruder at elevated temperatures, wherein the following steps are carried out:Type: ApplicationFiled: July 18, 2001Publication date: January 3, 2002Inventors: Johannes Leugs, Harald Marinus Alexander Heere, Adrianus Hendrikus Van Rooijen
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Patent number: 6335389Abstract: A resin composition for powdery coatings, which contains the following components (A), (B) and (C): (A) a carboxyl group-containing resin having a number average molecular weight of from 1000 to 20000, an acid value of from 5 to 200 and a glass transition temperature of from 30 to 120° C., (B) a poly-&bgr;-methylglycidyl compound having at least two structures represented by the formula (1) in one molecule: and (C) a sterically-hindered amine as a heat yellowing inhibitor.Type: GrantFiled: August 16, 2000Date of Patent: January 1, 2002Assignee: Nissan Chemical Industries, Ltd.Inventors: Hisao Ikeda, Motohiko Hidaka
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Patent number: 6328912Abstract: A mixture for stabilizing polyolefins containing A) either (A1) at least one compound of the formula in which R1 is for example C1-C10alkyl; R2 is C3-C10alkylene; R3 is for example hydrogen or C1-C8alkyl; and n1 is a number from 2 to 50; or (A2) a product obtainable by reacting a product—obtained by reaction of a polyamine of the formula in which n2′, n2″ and n2′″ are a number from 2 to 12 with cyanuric chloride—with a compound of the formula wherein R4 is for example hydrogen or C1-C12alkyl; and R5 is as defined for R3 and B) magnesium oxide, magnesium hydroxide, C) zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and at least one of C1) an UV absorber or C2) 2 pigment.Type: GrantFiled: July 10, 1997Date of Patent: December 11, 2001Assignee: CIBA Specialty Chemicals Corp.Inventor: François Gugumus
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Publication number: 20010034385Abstract: A hydrophobically capped oligomeric acrylamide or pyrrolidone is employed as a dispersant for hydrophobic materials in an aqueous medium containing a hydrophilic colloid, e.g. gelatin. The hydrophobic materials include photographic addenda such as color couplers or solid particle dyes.Type: ApplicationFiled: January 26, 2001Publication date: October 25, 2001Applicant: Eastman Kodak CompanyInventors: Alan R. Pitt, Trevor J. Wear, Danuta Gibson, Ian M. Newington, Mary C. Brick, John W. Boettcher, Gary N. Barber
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Patent number: 6306940Abstract: Colorant concentrates made from free-flowing polyoxymethylene copolymer as carrier, 15-80% by weight of colorant, 2-15% by weight of nitrogen-containing stabilizer and 0-15% by weight of dispersion aid for coloring pellets or molding compositions made from polyoxymethylene (POM) and for producing colored injection moldings or colored POM extrudates. The products produced with this colorant preparation are particularly stable during processing and have very low formaldehyde emissions.Type: GrantFiled: July 25, 2000Date of Patent: October 23, 2001Assignee: Ticona GmbHInventors: Stefan Disch, Peter Eckardt, Michael Hoffmockel, Karl-Friedrich Mück, Gerhard Reuschel
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Patent number: 6288152Abstract: A room-temperature curable silicone rubber composition that excels in bonding durability. comprises. The present invention is a room-temperature curable composition comprising: (A) 100 parts by weight of a polydiorganosiloxane comprising (A-1) 20 to 100 parts by weight of a first polydiorganosiloxane, (A-2) 0 to 80 parts by weight of a second polydiorganosiloxane; (B) 1 to 20 parts by weight of an alkoxysilane or an alkoxysilane partial hydrolysis condensate; (C) 0.5 to 10 parts by weight of an organo-titanium compound; (D) 0.01 to 5 parts by weight of an additive selected from light stabilizers and UV absorbers.Type: GrantFiled: November 12, 1999Date of Patent: September 11, 2001Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Kazutoshi Okabe, Hiroshi Adachi, Toshio Saruyama
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Patent number: 6277917Abstract: Curable powder clear coating composition and coated substrate with multilayered coatings have as the predominant film-forming polymer in the coating at least one epoxy acrylic copolymer in an amount from 60 to 99.99 percent by weight and 10 to 40 percent by weight of a polycarboxylic acid crosslinking agent. The percentages by weight are based on solids of the curable coating composition. A single predominant film-forming epoxy acrylic copolymer has a number average molecular weight in the range of about 1000 to 5500; a calculated Tg in the range of 50 to 85° C.; epoxy content in the range of 35 to 85, and a styrene content resulting from an amount of styrene monomer in the range of up to about 25 weight percent based on the weight percent of the monomers to form the copolymer.Type: GrantFiled: June 7, 1999Date of Patent: August 21, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Anton Jurgetz, Karen B. Allen, John M. Furar, Kurt A. Humbert, Charles M. Kania, Stephen G. McQuown, Karen S. Rechenberg
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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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Publication number: 20010001690Abstract: An extended life fluorescent polyvinyl chloride sheeting and a method for forming the sheeting are disclosed. The sheeting includes a polyvinyl chloride film having a fluorescent colorant incorporated therein. A protective polymer layer is attached to the polyvinyl chloride film. A light filtering agent is incorporated into the protective layer, wherein the filter agent blocks the 425 nm and lower wavelengths of the visible spectrum.Type: ApplicationFiled: January 8, 2001Publication date: May 24, 2001Applicant: Reflexite CorporationInventor: Edward D. Phillips
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Patent number: 6235819Abstract: A method for scavenging amines within polymeric compositions of matter comprising the step of adding to a polymeric composition of matter at least one triazine compound, wherein said triazine compound is defined according to the formula: where X is selected from the group consisting of hydrogen, halides, amines, and organic groups having from 1 to about 20 carbon atoms, Y is selected from the group consisting of halides, alkoxy derivatives, amine derivatives, aryloxy derivatives, and urea derivatives, with the proviso that the substituent Y is displacable by a reaction with a secondary amine, and Z is selected from the group consisting of alkoxy derivatives, amino derivatives, aryloxy derivatives, and urea derivatives, with the proviso that the substituent Z is displacable by a reaction with a secondary amine.Type: GrantFiled: December 31, 1997Date of Patent: May 22, 2001Assignee: Bridgestone CorporationInventors: David F. Lawson, Ashley S. Hilton, John R. Schreffler, Roderic P. Quirk
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Patent number: 6218451Abstract: The present invention relates to the use of a photoreactive and UV absorbing piperidine compound of the formula A below and of a mixture consisting of this piperidine compound and at least one selected UV absorber as light stabilizers in coating materials, preferably in automotive coating materials. The invention also provides a method of stabilizing coating materials against the degradation of the polymer material present in the coating material, as induced by the action of atmospheric oxygen, heat and/or UV light, and the coating materials themselves that are stabilized in this way.Type: GrantFiled: October 12, 1998Date of Patent: April 17, 2001Assignee: Clariant Finance (BVI) LimitedInventors: Karl Bechtold, Gilbert Ligner
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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: 6218452Abstract: 1. Synthetic polyamide comprising one or more of the following compounds: a) a compound having at least one sterically hindered amino group, [hereinafter referred to as compounds a)]; or b) a trimesinic acid trialkylamide, at least one alkyl group of which bears at least one free amino and/or alkylamino group [hereinafter referred to as compounds b)]; or c) a trialkylamino-substituted triazine, at least one alkyl group of which carries a free amino and/or alkylamino group [hereinafter referred to as compounds c)]; or d) a dyestuff that is free of sulphonic acid groups and contains at least one group that is reactive to a hydroxy and/or amino group [hereinafter referred to as compounds d)]; or e) a synthetic polyamide containing at least one group that is reactive with a hydroxy and/or amino group [hereinafter referred to as compounds e)].Type: GrantFiled: July 23, 1999Date of Patent: April 17, 2001Assignee: Clariant Finance (BVI) LimitedInventors: Bansai Lal Kaul, Angelos Elie Vougioukas
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Patent number: 6214995Abstract: This invention relates to new and novel compositions and processes, whereby hindered amine light stabilizers (HALS) having either one or more amido or imido groups and/or a phenolic or anilino group are reacted with an aldehyde to give hydroxy, alkylated groups. These hydroxyalkylated groups can be further reacted with lower alkyl alcohol's to give the more stable alkoxylated derivatives. The above compositions can then be used as reactive HALS for the following polymeric systems, e.g., aminoplasts epoxies, polyesters, polyamides, and urethanes and others to confer photo stabilization.Type: GrantFiled: December 22, 1998Date of Patent: April 10, 2001Inventor: Richard F. Stockel
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Patent number: RE37200Abstract: A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.Type: GrantFiled: August 23, 1999Date of Patent: May 29, 2001Assignee: Bayer CorporationInventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan