Patents by Inventor Thomas Eckel

Thomas Eckel 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: 8748521
    Abstract: The present disclosure relates to impact-modified polycarbonate compositions which comprise a graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt. % (based on the graft base), talc having a d98 value (also called “top cut”) of less than 20 ?m and phosphorus-containing flame retardant, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and moulding compositions according to the disclosure have an optimum combination of good flameproofing, good resistance to chemicals and hydrolysis and good mechanical properties (i.e. in particular a high E modulus and high notched impact strength aK).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 10, 2014
    Assignee: Bayer MaterialScience
    Inventors: Vera Taschner, Thomas Eckel, Achim Feldermann, Eckhard Wenz, Dieter Wittmann
  • Patent number: 8710127
    Abstract: The present invention relates to flame-protected impact-modified polycarbonate compositions, wherein the compositions are free of rubber-free polyalkyl (alkyl)acrylate. The present invention further relates to the use of the polycarbonate compositions in the production of molded bodies, and to the molded bodies themselves.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: April 29, 2014
    Assignee: Bayer Materialscience AG
    Inventors: Achim Feldermann, Thomas Eckel, Andreas Seidel, Dieter Wittmann
  • Publication number: 20130289177
    Abstract: The present invention relates to moulding compositions of polycarbonates and graft polymers and optionally further additives and components, which have, in addition to a high resistance to chemicals, a good resistance to heat, in particular a low tendency towards yellowing and a low tendency towards degradation when exposed to heat. In a particular, flameproofed embodiment, the after-burn time in a UL94 classification is furthermore reduced.
    Type: Application
    Filed: April 22, 2013
    Publication date: October 31, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Thomas Eckel, Andreas Seidel, Martin Haussler, Burkhard Thuermer
  • Publication number: 20130289192
    Abstract: The present invention relates to moulding compositions comprising polycarbonate and acrylonitrile-butadiene-styrene polymer (ABS) as well as optionally further additives and components, which moulding compositions are distinguished by high thermal processing stability in respect of gloss level, polycarbonate degradation and content of free bisphenol A and exhibit improved stress cracking resistance.
    Type: Application
    Filed: April 22, 2013
    Publication date: October 31, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Andreas Seidel, Thomas Eckel, Martin Haussler
  • Patent number: 8530551
    Abstract: Battery box comprising compositions containing A) 70.0 to 90.0 parts by weight of linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) 6.0 to 15.0 parts by weight of at least one graft polymer, C) 2.0 to 15.0 parts by weight of one or more phosphorus compounds, D) 0 to 3.0 parts by weight of antidripping agents, E) 0 to 3.0 parts by weight of thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) 0 to 20.0 parts by weight of further additives, wherein the compositions are optionally free from rubber-free polyalkyl(alkyl)acrylate.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 10, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Eckel, Ulrich Grosser, Claus Rüdiger, Achim Feldermann, Dieter Wittmann
  • Patent number: 8383709
    Abstract: The present invention relates to flame-resistant moulding compositions of polycarbonates and graft polymers which, in addition to good flow properties, have very good mechanical properties and a particularly good, trouble-free surface. These moulding compositions are suitable in particular for injection moulding uses for mouldings with thin wall thicknesses and high-gloss surfaces. The thermoplastic moulding compositions according to the invention comprise A) 65.0 to 82.0 parts by wt. of at least one aromatic polycarbonate, B) 4.0 to 11.0 parts by wt. of at least one graft polymer, C) 14.0 to 24.0 parts by wt. of at least one phosphorus-containing flameproofing agent, wherein the sum of the parts by weight of components A to C adds up to 100 parts by weight and the total content of the polymer which is formed from the grafting monomers or is added in the free form and is not bonded chemically to the graft base is less than 2.0 wt. %, based on the total moulding composition.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 26, 2013
    Assignee: Bayer Materialscience AG
    Inventors: Thomas Eckel, Burkhard Thuermer, Vera Taschner, Dieter Wittmann
  • Publication number: 20130018137
    Abstract: A masterbatch comprising pigment and demoulding agent is provided. The demoulding agent is selected from the group comprising low molecular weight polyolefin oils, low molecular weight polyolefin waxes, montan waxes and aliphatic or aromatic carboxylic acid esters of fatty acids and/or fatty alcohols, wherein the pigment content of the masterbatch is from 3 to 70 wt. %, based on the total weight of the masterbatch. The masterbatch is suitable for preparation of a polymer composition having improved pigment dispersion.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 17, 2013
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Andreas SEIDEL, Hans-Juergen THIEM, Reiner RUDOLF, Joerg REICHENAUER, Thomas ECKEL
  • Patent number: 8349926
    Abstract: The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and moulding compositions which have good mechanical properties and a high resistance to chemicals coupled with good flameproofing properties, and show improved flow properties during processing. The present invention furthermore relates to a process for the preparation of the compositions and their use for the production of shaped articles, in particular housings of flat screen apparatuses.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 8, 2013
    Assignee: Bayer Materialscience AG
    Inventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Burkhard Thuermer
  • Patent number: 8349927
    Abstract: The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and molding compositions which have good mechanical properties as well as high resistance to chemicals, to a process for their preparation, and to their use in the production of molded articles, in particular of casings for flat screen devices.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 8, 2013
    Assignee: Bayer Materialscience AG
    Inventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Burkhard Thuermer
  • Patent number: 8344051
    Abstract: The present invention relates to flameproofed, impact-modified, scratch-resistant polycarbonate (PC) compositions and molding compositions with surface-modified, calcined kaolin as filler, which have good mechanical properties, good flowability and high chemical resistance. Furthermore, the present application relates to the use of the compositions for the production of moldings.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 1, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Burkhard Thuermer, Dieter Wittmann
  • Patent number: 8178603
    Abstract: The present disclosure relates to an impact-modified polycarbonate composition which comprise a first graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt. % (based on the graft base), a second graft polymer containing a diene rubber, and phosphorus-containing flameproofing agent, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and molding compositions according to the disclosure have an optimum combination of good flameproofing at thin wall thicknesses, good resistance to chemicals and hydrolysis and low melt viscosity.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 15, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Eckhard Wenz
  • Publication number: 20120074617
    Abstract: Battery box comprising compositions containing A) 70.0 to 90.0 parts by weight of linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) 6.0 to 15.0 parts by weight of at least one graft polymer, C) 2.0 to 15.0 parts by weight of one or more phosphorus compounds, D) 0 to 3.0 parts by weight of antidripping agents, E) 0 to 3.0 parts by weight of thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) 0 to 20.0 parts by weight of further additives, wherein the compositions are optionally free from rubber-free polyalkyl(alkyl)acrylate.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Thomas ECKEL, Ulrich GROSSER, Claus RÜDIGER, Achim FELDERMANN, Dieter WITTMANN
  • Publication number: 20120074036
    Abstract: The present invention relates to battery boxes comprising flame-retardant compositions comprising A) linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) at least one graft polymer, C) one or more phosphorus compounds, D) optionally one or more antidripping agents, optionally E) thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) optionally one or more further additives, wherein the composition is preferably free from rubber-free polyalkyl(alkyl)acrylate.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Thomas ECKEL, Ulrich GROSSER, Claus RÜDIGER, Achim FELDERMANN
  • Publication number: 20110263766
    Abstract: The present invention relates to flame-resistant moulding compositions of polycarbonates and graft polymers which, in addition to good flow properties, have very good mechanical properties and a particularly good, trouble-free surface. These moulding compositions are suitable in particular for injection moulding uses for mouldings with thin wall thicknesses and high-gloss surfaces. The thermoplastic moulding compositions according to the invention comprise A) 65.0 to 82.0 parts by wt. of at least one aromatic polycarbonate, B) 4.0 to 11.0 parts by wt. of at least one graft polymer, C) 14.0 to 24.0 parts by wt. of at least one phosphorus-containing flameproofing agent, wherein the sum of the parts by weight of components A to C adds up to 100 parts by weight and the total content of the polymer which is formed from the grafting monomers or is added in the free form and is not bonded chemically to the graft base is less than 2.0 wt. %, based on the total moulding composition.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Thomas ECKEL, Burkhard THUERMER, Vera TASCHNER, Dieter WITTMANN
  • Publication number: 20110159292
    Abstract: The present invention relates to a composite component comprising i) a support made of a thermoplastic composition comprising A) at least one polymer selected from the group consisting of aromatic polycarbonates, aromatic polyester carbonates, aromatic polyesters, and mixtures thereof, in an amount of from 20.0 to 85.0 parts by wt., based on the sum of components A and B; B) at least one rubber-modified vinyl (co)polymer in an amount of from 15.0 to 80.0 parts by wt., based on the sum of components A and B, and with a rubber content [RB] of at least 25.0 parts by wt., based on component B; and C) at least one polymer additive in an amount of from 0 to 30.0 parts by wt., based on the sum of components A to C; and ii) at least one polyurethane layer, wherein the thermoplastic composition comprises a total rubber content [R], of at least 12 parts by wt., based on the sum of components A to C.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 30, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Eckel, Andreas Seidel, Uli Franz
  • Publication number: 20110152418
    Abstract: The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and moulding compositions which have good mechanical properties as well as high resistance to chemicals, to a process for their preparation, and to their use in the production of moulded articles, in particular of casings for flat screen devices.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 23, 2011
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Thomas ECKEL, Vera Taschner, Achim Feldermann, Burkhard Thuermer
  • Publication number: 20110152416
    Abstract: The present invention relates to flameproofed, impact-modified, scratch-resistant polycarbonate (PC) compositions and moulding compositions with surface-modified, calcined kaolin as filler, which have good mechanical properties, good flowability and high chemical resistance. Furthermore, the present application relates to the use of the compositions for the production of mouldings.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 23, 2011
    Applicant: BAYER MATERIAL SCIENCE AG
    Inventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Burkhard Thuermer, Dieter Wittmann
  • Publication number: 20110152417
    Abstract: The present invention relates to scratch-resistant, impact-resistant polycarbonate (PC) compositions and moulding compositions which have good mechanical properties and a high resistance to chemicals coupled with good flameproofing properties, and show improved flow properties during processing. The present invention furthermore relates to a process for the preparation of the compositions and their use for the production of shaped articles, in particular housings of flat screen apparatuses.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 23, 2011
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Thomas ECKEL, Vera Taschner, Achim Feldermann, Burkhard Thuermer
  • Patent number: 7943686
    Abstract: The disclosure relates to impact-modified polycarbonate compositions and moulding compositions comprising A) aromatic polycarbonate or aromatic polyester carbonate or mixtures of these, B) a mixture containing Ba) at least one graft polymer prepared in emulsion polymerization and Bb) at least one carboxylate salt, wherein this mixture, suspended as a 10 wt. % strength suspension in distilled water, has a pH of >7, C) at least one acidic phosphorus compound with at least one P—OH functionality, which are distinguished compared with the prior art by an improved combination of stability to hydrolysis and heat stability, and which are suitable for production of injection-moulded components which have a good toughness at low temperatures and—even with critical processing conditions (high processing temperatures)—still have a good resistance to stress cracking under the influence of chemicals.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: May 17, 2011
    Assignee: Bayer Material Science AG
    Inventors: Andreas Seidel, Evgueni Avtomonov, Thomas Eckel
  • Patent number: 7868070
    Abstract: A thermoplastic molding composition that features improved thermal stability and a relatively low maximum rate of decomposition in the event of fire is disclosed. The composition contains an aromatic polycarbonate and/or polyester carbonate, and a modified layered compound, the modification with organic polymer by means of a solvent-free melt process. Optional additional components include an impact modifier, a thermoplastic (co)copolymer, and a phosphorus compound.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: January 11, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Eckhard Wenz, Uwe Peucker, Thomas Eckel, Dieter Wittmann, Arno Nennemann, Vera Buchholz