Patents by Inventor Siegfried Anders

Siegfried Anders has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8092901
    Abstract: A multilayer product characterized by its improved weatherability and mechanical properties is disclosed. The product contains a layer A containing a member selected from the group consisting of transparent thermoplastic material and a lacquer, the member containing at least one UV absorber, a layer B containing a transparent thermoplastic material and containing at least one colorant, and a layer C containing a transparent thermoplastic material. Also disclosed is a process for the preparation of the inventive multilayer product.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: January 10, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising, Wolfgang Ebert, Robert Maleika, Martin Döbler, Melanie Möthrath
  • Patent number: 7691477
    Abstract: A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1a) or (1b), in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 carbon atoms, k is a whole number from 1 to 1500, o stands for numbers from 1 to 1500, and m is z/o and n is (o-z)/o wherein z is 0 to o.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: April 6, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Helmut-Werner Heuer, Rolf Wehrmann, Sylvia Braun, Claus Rüdiger, Marco Roelofs, Wolfgang Nising, Siegfried Anders, Jürgen Röhner, Rüdiger Gorny, Ralf Hufen
  • Patent number: 7265170
    Abstract: A thermoplastic molding composition characterized by its optical brightness and good weathering resistance is disclosed. The composition contains a poly(ester) carbonate an optical brightener conforming to where R1, R2, R3 R4, R5 and R6 independently denote H, alkyl, aryl, heteroaryl or halogen, or where R1, R2, R3, R4, R5, R6 and R7 mutually independently stand for H, alkyl, aryl, heteroaryl, halogen or a cyano group.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: September 4, 2007
    Assignee: Bayer MaterialScience AG
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising, Marco Roelofs
  • Patent number: 7201964
    Abstract: A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle ?? (min) according to DIN 52305-A-AS of ?2.0 and a refracting power D? (min) according to DIN 52305-A-AZ of ?0.05, is prepared by extruding a molding composition comprising linear (co)polycarbonate having weight average molecular weight of 25,000 to 31,000.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: April 10, 2007
    Assignee: Bayer Materialscience AG
    Inventors: Siegfried Anders, Rüdiger Gorny, Peter Schwarz, Claus Rüdiger, Jürgen Röhner
  • Publication number: 20060293414
    Abstract: An extruded article is disclosed. The article is prepared of a mixture containing a) at least one thermoplastic material selected from a specified group and b) a polyalkylhydrogensiloxane-coated, multi-layered pigment the structure of which includes a substrate and at least three overlaying covering layers.
    Type: Application
    Filed: May 23, 2006
    Publication date: December 28, 2006
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising
  • Publication number: 20060251900
    Abstract: A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1a) or (1b), in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 C atoms, k is a whole number from 1 to 1500 and m is z/o and n is (o-z)/o wherein z is 0 to o. The multi-layer article that may be prepared by co-extrusion exhibits improved properties.
    Type: Application
    Filed: October 6, 2005
    Publication date: November 9, 2006
    Inventors: Helmut-Werner Heuer, Rolf Wehrmann, Sylvia Braun, Claus Rudiger, Marco Roelofs, Wolfgang Nising, Siegfried Anders, Jurgen Rohner, Rudiger Gorny, Ralf Hufen
  • Patent number: 6960623
    Abstract: A thermoplastic molding composition especially suitable for preparing extruded articles is disclosed. The composition contains polycarbonate, a fatty acid ester and a triazine conforming to formula (I) wherein R1, R2, R3 and R4 independently one of the others is selected from the group consisting of C1-C8-alkyl, halogen and —CN, and where R5 is H or C1-C20-alkyl.
    Type: Grant
    Filed: May 28, 2001
    Date of Patent: November 1, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising
  • Publication number: 20050158555
    Abstract: A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle ?? (min) according to DIN 52305-A-AS of ?2.0 and a refracting power D? (min) according to DIN 52305-A-AZ of ?0.05, is prepared by extruding a molding composition comprising linear (co)polycarbonate having weight average molecular weight of 25,000 to 31,000.
    Type: Application
    Filed: November 17, 2004
    Publication date: July 21, 2005
    Inventors: Siegfried Anders, Rudiger Gorny, Peter Schwarz, Claus Rudiger, Jurgen Rohner
  • Publication number: 20050084663
    Abstract: A multilayer product characterized by its improved weatherability and mechanical properties is disclosed. The product contains a layer A containing a member selected from the group consisting of transparent thermoplastic material and a lacquer, the member containing at least one UV absorber, a layer B containing a transparent thermoplastic material and containing at least one colorant, and a layer C containing a transparent thermoplastic material. Also disclosed is a process for the preparation of the inventive multilayer product.
    Type: Application
    Filed: December 5, 2002
    Publication date: April 21, 2005
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising, Wolfgang Ebert, Robert Maleika, Martin Dobler, Melanie Mothrath
  • Patent number: 6861460
    Abstract: Compositions containing polycarbonate and one or more esters derived from a linear carboxylic acid and branched alcohol are disclosed. The inventive compositions feature improved processing properties and are especially suitable for preparing extruded articles.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: March 1, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising
  • Patent number: 6858303
    Abstract: A thermoplastic molding composition comprising polycarbonate and 50 ppm to 300 ppm, in relation to the weight of the composition, of diphenyl carbonate is disclosed. The composition is especially suitable for the preparation of extruded sheets, in particular coextruded.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: February 22, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising, Heidemarie Pantke, James Mason, Melanie Möthrath
  • Publication number: 20050031855
    Abstract: A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1a) or (1b), ?O-D-O—CH2?k??1a ??O-D-O—CH2?mO?E-O—CH2?n?o??1b in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 C atoms, k is a whole number from 1 to 1500 and m is z/o and n is (o?z)/o wherein z is 0 to o. The multi-layer article that may be prepared by co-extrusion exhibits improved properties.
    Type: Application
    Filed: July 20, 2004
    Publication date: February 10, 2005
    Inventors: Helmut-Werner Heuer, Rolf Wehrmann, Sylvia Braun, Claus Rudiger, Marco Roelofs, Wolfgang Nising, Siegfried Anders, Jurgen Rohner, Rudiger Gorny
  • Publication number: 20050013970
    Abstract: A multi-layer product which is produced by co-extrusion and in which the co-extruded side is easily recognizable is disclosed. The product comprises a base layer containing a transparent thermoplastic and at least one co-extruded layer that contains a transparent thermoplastic and is different from the base layer. Also disclosed is a process for the production of such a multi-layer product and products containing such a multi-layer product.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 20, 2005
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising, Claus Rudiger
  • Patent number: 6841240
    Abstract: A multilayered article made of a plastic material which exhibits high IR reflection and a high gloss is disclosed. The article includes at least three layers A, B and C, wherein layer A contains a transparent thermoplastic plastics material, and wherein layer B contains a transparent thermoplastic plastics material and a pigment which consists of a transparent support material and a titanium dioxide layer of thickness 150 to 200 ?m, and where layer C contains a transparent thermoplastic plastics material.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: January 11, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising
  • Publication number: 20040266975
    Abstract: A thermally-formed molded article comprising a branched polycarbonate having improved thickness uniformity is disclosed. The polycarbonate has a melt volume rate of 1.5 to 10 and a viscosity parameter of 1.75 to 3.0. Also disclosed is a process for the production of the article.
    Type: Application
    Filed: April 21, 2004
    Publication date: December 30, 2004
    Inventors: Jurgen Rohner, Siegfried Anders, Rudiger Gorny, Peter Schwarz
  • Patent number: 6833193
    Abstract: A polycarbonate molding having improved optical properties is disclosed. The molding features an angle of deflection &agr;&egr; (min) determined in a accordance with DIN 52305-A-AS of ≦2.0 and a refractive index D&egr; (min) determined in accordance with DIN 52305-A-AZ of ≦0.05. The molding is prepared from a molding composition that contains a branched polycarbonate having a weight average molecular weight of 25,000 to 40,000 and melt volume rate of 2 to 20 cm3/10 min (300° C.; 1.2 kg) determined in accordance with ISO 1133.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: December 21, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Anders, Jürgen Röhner, Wilfried Haese
  • Publication number: 20040122147
    Abstract: A thermoplastic molding composition comprising polycarbonate and 50 ppm to 300 ppm, in relation to the weight of the composition, of diphenyl carbonate is disclosed. The composition is especially suitable for the preparation of extruded sheets, in particular coextruded.
    Type: Application
    Filed: October 7, 2003
    Publication date: June 24, 2004
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising, Heidemarie Pantke, James Mason, Melanie Mothrath
  • Patent number: 6740693
    Abstract: A Polycarbonate molding composition is disclosed. The composition that contains a compound conforming to the general formula (I) wherein A represents a C10 to C40-fatty acid radical, B represents a trivalent alcohol having 3 to 20 carbon atoms, C represents a dicarboxylic acid radical having 4 to 40 carbon atoms, and n represents an integer from 0 to 15, is suitable for making a variety of molded articles having surface of good quality.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: May 25, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising
  • Publication number: 20040063821
    Abstract: A thermoplastic molding composition characterized by its optical brightness and good weathering resistance is disclosed.
    Type: Application
    Filed: September 24, 2003
    Publication date: April 1, 2004
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising, Marco Roelofs
  • Patent number: 6713181
    Abstract: A thermoplastic molding composition is disclosed. The composition that contains a polymer selected from the group consisting of a polycarbonate, a transparent polycarbonate-polyester-blend, a copolyestercarbonate and a transparent polyester and a compound of formula (I) and one or more compounds of formula (II) wherein a is 1 to 17, b is 0 to 16, c is 6 to 14, d is 3 to 7, e is 6 to 14, f is 3 to 7, g is 5 to 40 and a+b is 9 to 25 and n is 1 to 10, was found to be especially suitable for co-extrusion applications.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: March 30, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising, Wolfgang Ebert