Patents Represented by Attorney Tyler A. Stevenson
  • Patent number: 8349923
    Abstract: The present invention relates to a novel method of flame retarding a polymeric substrate by adding a small but efficient amount of a synergistic mixture of at least one sterically hindered N-alkoxyamine (NOR), at least a metal salt of hypophosphorous (phosphinic) acid and at least one organo-halogen flame retardant. A further aspect of the invention is the flame retardant composition itself and together with a polymer. The present invention also relates to polymeric articles (e.g. moldings, films, fibers, etc.) that are stabilized against light, heat and oxygen and made flame retardant by incorporation of at least one sterically hindered N-alkoxy amine, at least a metal salt of hypophosphorous acid (phosphinic acid) and at least one organo-halogen flame retardant.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: January 8, 2013
    Assignee: BASF SE
    Inventor: Michael Roth
  • Patent number: 8349224
    Abstract: The present invention relates to flame retardant polymer compositions which comprise melamine phenylphosphonates and mixtures with dihydro-oxa-phosphaphenanthrene derivatives. The compositions are especially useful for the manufacture of flame retardant compounds based on polyfunctional epoxides or polycondensates like polyesters, polyamides and polycarbonates.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: January 8, 2013
    Assignee: BASF SE Ludwigshafen
    Inventors: Sabine Fuchs, Thomas Weiβ, Rainer Xalter
  • Patent number: 8304477
    Abstract: Disclosed are mixtures of oxyalkylene bridged bis- and tris-phosphite esters of formulae I and II where R is hydrogen or methyl, n and n? are independently an integer from 1 to 45 and R1, R2 and R3 are each independently hydrogen, straight or branched chain alkyl of 1 to 12 carbon atoms, phenylalkyl of 7 to 9 carbon atoms, phenylalkyl of 7 to 9 carbon atoms substituted on the phenyl ring by one to three straight or branched chain alkyl of 1 to 12 carbon atoms or R1, R2 and R3 are each independently —(CH2)k—COOR4 where k is 0, 1 or 2 and R4 is hydrogen or straight or branched chain alkyl of 1 to 20 carbon atoms. The mixtures of formula I and II are liquid at ambient conditions and are effective stabilizers for polyolefins.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: November 6, 2012
    Assignee: BASF SE
    Inventors: Roswell E. King, Stanley Padegimas, Marie A. McGregor, legal representative, Brian Bakke, Lucas Moore, Sai P Shum, Robert Cordova
  • Patent number: 8287777
    Abstract: The present invention relates to a method of protecting organic material, especially from the pharmaceuticals and foodstuffs sectors, against light, wherein at least one pigment of formula (1), (2), (3), (4), (5), (6) and (7) and (8) as defined in claim 1 and optionally a UV absorber as well as optionally further pigments and/or colorants is applied to or incorporated in a carrier material and the carrier material so treated is positioned between the light source and the organic material to be protected.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: October 16, 2012
    Assignee: BASF SE
    Inventors: Isabel Annelies Marika Hirschmuller, Jürg Zingg
  • Patent number: 8277695
    Abstract: A reversible thermochromic system comprising a) a compound of the formula (IA) or a tautomer thereof or a compound of the formula (IB) or a tautomer thereof (IA) (IB) wherein R1 is C1-C18alkyl, C2-C18alkenyl, C3-C12cycloalkyl, C3-C12cycloalkyl substituted by 1, 2 or 3 C1-C4alkyl; phenyl, phenyl substituted by 1, 2 or 3 C1-C4alkyl; or C7-C12phenylalkyl; R2 is hydrogen or a group —SO2—R; R3 and R4 independently of one another are hydrogen, C1-C18alkyl, C2-C18alkenyl, C3-C12cycloalkyl, C3-C12cycloalkyl substituted by 1, 2 or 3 C1-C4alkyl; phenyl, phenyl substituted by 1, 2 or 3 C1-C4alkyl; or C7-C12phenylalkyl; and R is C1-C18alkyl, C2-C18alkenyl, C3-C12cycloalkyl, C3-C12cycloalkyl substituted by 1, 2 or 3 C1-C4alkyl; phenyl, phenyl substituted by 1, 2 or 3 C1-C4alkyl; or C7-C12phenylalkyl; and b) a compound containing a group of the formula (III).
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: October 2, 2012
    Assignee: BASF SE
    Inventors: Walter Fischer, Abdel-Ilah Basbas, Martin Brunner, Rolf Benz
  • Patent number: 8273822
    Abstract: The present invention pertains to a reversible thermochromic system comprising a ?-phenylvinylketone or a ?-phenyl polyacetylenyl ketone with at least one acidic hydrogen and a base and to a reversible thermochromic composition comprising the reversible thermochromic system and a carrier material and to novel substituted ?-phenylvinylketones or ?-phenyl polyacetylenyl ketones with at least one acidic hydrogen.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: September 25, 2012
    Assignee: BASF SE
    Inventors: Mirko Rossi, Graziano Zagnoni, Manuele Vitali, Dario Lazzari, Walter Fischer
  • Patent number: 8268202
    Abstract: Disclosed are potassium cesium tungsten bronze solid solution particles of the formula KxCsyWOz, where x+y?1 and 2?z?3. The particles are for instance micron or nano scaled particles. Also disclosed are organic or inorganic compositions comprising an organic or inorganic substrate and incorporated therein the present potassium cesium tungsten bronze solid solution particles. The substrates are for instance plastics, coatings, inks, adhesives, ceramics or glass. Also disclosed is a method for the preparation of the present potassium cesium tungsten bronze solid solution particles, which method comprises mixing a suitable tungsten source with a salt of potassium and a salt of cesium to form a powder mixture and exposing the powder mixture to a plasma torch under a reducing atmosphere. The present tungsten bronze particles are suitable NIR absorbers and heat shielding additives.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: September 18, 2012
    Assignee: BASF SE
    Inventors: Marc Andrew Mamak, Urs Lehmann, Urs Leo Stadler, Ralf Stefan Knischka
  • Patent number: 8262945
    Abstract: Photochromic compositions are disclosed comprising a polymeric material, a photochromic dye, a hydroxyphenyl triazine UV absorber and, optionally, a further light stabilizer selected from the sterically hindered amines. These systems provide a reversible photochromic effect and show improved light stabilization and color fastness.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 11, 2012
    Assignee: BASF SE
    Inventors: Mara Destro, Dario Lazzari, Dirk Simon, Manuele Vitali
  • Patent number: 8258217
    Abstract: The instant invention relates to a composition comprising a) an organic material which is susceptible to oxidative, thermal or light-induced degradation, and b) at least one compound of the formula (I) wherein the general symbols are as defined in claim 1; especially wherein at least one of the radicals R2, R3 or R4 is —CH2—CH(CH3)—S(O)p—R12, —CH2—CH2—CH2—S(O)p—R12, —CH2—CH(R11)—CH2—R12 or —CH2—CH?CH—R12, R11 is hydrogen or halogen, R12 is a monovalent perfluorinated alkyl or alkenyl, linear or branched organic radical having four to twenty fully fluorinated carbon atoms; or —CH2CH2(CF2)mCF3, m is 3 to 12, and p is 0, 1 or 2. The compounds of the formula I are useful as reducers of surface energy for organic materials, for example synthetic polymer.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 4, 2012
    Assignee: BASF SE Ludwigshafen
    Inventors: Michèle Gerster, Manuel Mihalic
  • Patent number: 8258253
    Abstract: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: September 4, 2012
    Assignee: BASF SE
    Inventors: Paul Odorisio, Stephen M. Andrews, Thomas F. Thompson, Si Wu, Paragkumar Thanki, Deepak M. Rane, Delina Joseph, Jianzhao Wang
  • Patent number: 8246859
    Abstract: The invention describes a process for reducing the surface energy of organic materials such as for example increasing the oil and water repellency and stain release of organic materials, which comprises treating the organic material with at least a compound of the formula I wherein the general symbols are as defined in claim 1; especially wherein at least one of the radicals R2, R3 or R4 is —CH(R11)—S(O)p—R12; R11 is hydrogen, C1-C8alkyl, unsubstituted or with C1-C4alkyl substituted phenyl; R12 is a monovalent perfluorinated alkyl or alkenyl, linear or branched organic radical having four to twenty fully fluorinated carbon atoms, and p is 0, 1 or 2.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: August 21, 2012
    Assignee: BASF SE
    Inventors: Michèle Gerster, Manuel Mihalic
  • Patent number: 8247479
    Abstract: The invention, relates to azo-compounds of formula (I), wherein >N—O—R substituted 2,2,6,6-tetraalkyl-piperidyl groups are present. These azo-compounds have excellent flame retardant properties, either if applied alone, or combined with other compounds, having flame retardant properties.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 21, 2012
    Assignee: BASF SE
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilén, Melanie Aubert
  • Patent number: 8236881
    Abstract: The present invention relates to flame retardant polymer compositions which comprise mixtures of phosphinic acid salts and dihydro-oxa-phospho-phenantrene derivatives. The compositions are especially useful for the manufacture of flame retardant compounds based on polycondensates like polyesters, polyamides and polycarbonates.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: August 7, 2012
    Assignee: BASF SE
    Inventor: Michael Roth
  • Patent number: 8226967
    Abstract: The invention relates to a use of surface active hydrophobins for applications in pharmaceutical technology, in particular as excipients for galenic use. Provided is a method for either admixture of hydrophobins to galenic compositions or for treating the surface of pharmaceutical forms with a hydrophobin-containing solution to modify the pharmaceutical properties of the galenic form. In a preferred embodiment of the invention hydrophobins are used to improve the properties of a pharmaceutical composition, e.g. to act as a surfactant or to increase resistance to disintegration of the galenic forms to achieve a retarded drug release. The galenic form to be modified by the use of surface active proteins as excipients can be capsules, tablets, pills, microparticles, vesicles, and suppositories, although further galenic forms are envisioned.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: July 24, 2012
    Assignee: BASF SE
    Inventors: Andreas Buthe, Andreas Hafner, Franz Kaufmann, Esther Gabor, Guido Meurer, Jürgen Eck, Gordon Bradley
  • Patent number: 8227541
    Abstract: An additive mixture containing the components (A), (B) and optionally (C), wherein component (A) is at least one compound of the formula (I) wherein p is zero or 1; m and n are independently of one another an integer from zero to 3; and the radicals R are independently of one another C1-C8alkyl, C1-C8alkoxy, hydroxy, halogen, C1-C8alkylthio, C1-C8alkylsulfoxy or 2 radicals R form together with 2 adjacent carbon atoms of the unsaturated parent ring a 5- to 7-membered carbocyclic or heterocyclic ring; component (B) is at least one compound of the formula (II) wherein x and y are independently of one another an integer from 2 to 10; the radicals A1, A2 and A3 are independently of one another C1-C10alkyl, C5-C12cycloalkyl unsubstituted or substituted by 1 to 3 C1-C10alkyl; phenyl unsubstituted or substituted by 1 to 3 C1-C10alkyl; or C7-C12phenylalkyl, and the radicals A2 and A3 are additionally hydrogen; with the proviso that at least one of the radicals A1 and A2 is branched C3-C10alkyl, C5-C12cycloal
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: July 24, 2012
    Assignee: BASF SE
    Inventors: Klaus Stoll, Urs Hirt, Judy Van De Langkruis
  • Patent number: 8221657
    Abstract: The instant invention relates to novel phthalocyanines and their use as IR-absorbers, in particular in transparent thermoplastic or crosslinkable polymers. A further aspect of the invention is a composition of these phthalocyanines and thermoplastic or crosslinkable polymers and an architectural or automotive glazing containing these phthatolcyanines.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: July 17, 2012
    Assignee: BASF SE
    Inventors: Francesca Peri, Cesare Lorenzetti, Samanta Cimitan, Markus Grob
  • Patent number: 8217105
    Abstract: The invention describes a composition comprising a) a polyethylene, b) a sulfur-containing phenolic antioxidant, c) a migrating antistatic agent, and d) an organic peroxide. The composition is useful for the preparation of a crosslinked polyethylene as cable insulation of medium and high voltage cables with improved water tree resistance.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: July 10, 2012
    Assignee: BASF SE
    Inventors: Heinz Herbst, Markus Kolb
  • Patent number: 8217170
    Abstract: The instant invention discloses a process for the preparation of compounds of the formula (I), wherein the general symbols are as defined in claim 1, which process comprises reacting a sterically hindered amine of the formula (II), wherein the general symbols are as defined in claim 1, with a compound of the formula (III) wherein the general symbols are as defined in claim 1, in the presence of a catalyst. The compounds of the formula (I) are useful as stabilizers for protecting organic materials, in particular synthetic polymers, reprographic materials or coating materials against oxidative, thermal or light-induced degradation.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 10, 2012
    Assignee: BASF SE
    Inventor: Massimiliano Sala
  • Patent number: 8183312
    Abstract: Disclosed are scratch resistant polypropylene molded parts comprising a) a polypropylene substrate and incorporated therein a combination of b) an alpha, beta-unsaturated carboxylic reagent functionalized olefin polymer or copolymer, c) a primary or secondary fatty acid amide and d) a nucleating agent selected from the group consisting of sodium benzoate, 2,2?-methylene-bis(4,6-di-tert-butylphenyl)phosphate, zinc glycerolate, calcium salt of 1,2-dicarboxylic acid cyclohexane and sodium salt of 1,2-dicarboxylic acid norbornane. Also disclosed is a method for providing scratch resistance to a polypropylene molded part by incorporating said additives. The polypropylene substrate is for instance polypropylene homopolymer or thermoplastic polyolefin (TPO). Component b) is for instance maleated polypropylene or the reaction product of an alpha-olefin and maleic anhydride. The fatty acid amide is for instance stearyl erucamide or oleyl palmitamide. The molded parts are suitable for automotive parts.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: May 22, 2012
    Assignee: BASF SE
    Inventors: Hung Pham, Nikolas Kaprinidis, Ralph Dieter Maier, Johanne Wilson
  • Patent number: 8173728
    Abstract: The invention relates to stabilized thermoplastic polymers, in particular polyolefin films. The stabilizing composition contains a tertiary amine with a molecular weight greater than 400 g/mol, a UV-absorber and/or a sterically hindered amine light stabilizer (HALS). Further aspects of the invention are a process for stabilizing thermoplastic polymers and the use of the above composition for stabilizing thermoplastic polymers.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: May 8, 2012
    Assignee: BASF SE
    Inventors: Cesare Lorenzetti, Michela Bonora, Anna Bassi, Mirko Rossi