Patents by Inventor Vera Taschner

Vera Taschner 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).

  • Publication number: 20220275155
    Abstract: The invention relates to a polyphosphazene produced by a method comprising the steps a) and b): a) converting an in particular cyclical phosphazene by means of phenol in the presence of a base; b) further converting by means of a special aromatic diphenol in the presence of a base, wherein the molar ratio of phenol used to cyclical phosphazene used is in the range from 3.5:1 to 1:1. The invention also relates to a method for producing the polyphosphazene and to a molding compound containing the polyphosphazene and a thermoplastic polymer.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 1, 2022
    Inventors: Maxime Paven, Vera Taschner, Sven Hobeika, Thomas Eckel, Stamo Mentizi, Igor Pochorovski, Andrij Pich, Ayse Deniz, Sven Buschmann
  • Publication number: 20210115248
    Abstract: The invention relates to a composition for production of a thermoplastic moulding compound, wherein the composition comprises or consists of the following constituents: A) 50-90% by weight of aromatic polycarbonate or polyestercarbonate having a relative solution viscosity of at least 1.285, measured in CH2Cl2 as solvent at 25° C. and a concentration of 0.5 g/100 ml, B) 1-10% by weight of rubber-modified graft polymer, C) 2.5-10% by weight of boron nitride, D) 4-20% by weight of talc, E) 2-20% by weight of phosphorus-containing flame retardant, F) 0-20% by weight of further additives, and to a process for producing the thermoplastic moulding compound, to the moulding compound itself, to the use of the moulding compound for production of mouldings and to the mouldings themselves.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 22, 2021
    Inventors: Vera Taschner, Dirk Kurzidim, Thomas Hoehnk, Klaus Kraner, Birte Saemisch, Thomas Eckel, Eckhard Wenz, Reiner Rudolf, Sven Hobeika, Matthias Kroh
  • Patent number: 10808086
    Abstract: The invention relates to a fibre composite (42) comprising at least one fibre layer (4, 14, 16) composed of a fibre material which is embedded in a matrix (8, 18) based on a thermoplastic, where the composition of the matrix (8, 18) contains: 60-95 parts by weight of aromatic polycarbonate and/or aromatic polyester carbonate and further additives. The invention further relates to the use of such a fibre composite for a component for a rail vehicle, in particular for a rail vehicle for transporting passengers.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: October 20, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Grimm, Vera Taschner, Eckhard Wenz, Thomas Höhnk
  • Patent number: 9637634
    Abstract: The present invention relates to flame-retardant, impact-modified polycarbonate (PC) compositions and molding compositions which have good mechanical properties, good resistance to chemicals and high hydrolytic stability. The present application additionally relates to the use of the compositions in the production of molded articles, and to molded articles produced from the compositions.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 2, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Mathieu Jung, Thomas Eckel, Vera Taschner
  • Publication number: 20160257794
    Abstract: The invention relates to a fibre composite (42) comprising at least one fibre layer (4, 14, 16) composed of a fibre material which is embedded in a matrix (8, 18) based on a thermoplastic, where the composition of the matrix (8, 18) contains: 60-95 parts by weight of aromatic polycarbonate and/or aromatic polyester carbonate and further additives. The invention further relates to the use of such a fibre composite for a component for a rail vehicle, in particular for a rail vehicle for transporting passengers.
    Type: Application
    Filed: October 6, 2014
    Publication date: September 8, 2016
    Inventors: Thomas GRIMM, Vera TASCHNER, Eckhard WENZ, Thomas HÖHNK
  • Publication number: 20160185956
    Abstract: The present invention relates to flame-retardant, impact-modified polycarbonate (PC) compositions and moulding compositions which have good mechanical properties, good resistance to chemicals and high hydrolytic stability. The present application additionally relates to the use of the compositions in the production of moulded articles, and to moulded articles produced from the compositions.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 30, 2016
    Inventors: Mathieu JUNG, Thomas ECKEL, Vera TASCHNER
  • Publication number: 20150315381
    Abstract: The present invention relates to flame-retardant, impact-modified polycarbonate (PC)/ABS compositions and moulding compositions which have high temperature stability and a high modulus of elasticity, good flowability and high hydrolytic stability. The present application additionally relates to the use of the compositions in the production of moulded articles, and to moulded articles produced from the compositions.
    Type: Application
    Filed: December 3, 2013
    Publication date: November 5, 2015
    Inventors: Mathieu JUNG, Thomas ECKEL, Vera TASCHNER
  • Publication number: 20150307707
    Abstract: The present invention relates to flame-retardant, impact-modified polycarbonate (PC) compositions and moulding compositions having a property combination of excellent mechanical properties, very good flame resistance, high hydrolytic stability and high resistance to chemicals (ESC behaviour). The present application additionally relates to the use of the compositions in the production of moulded articles, and to moulded articles produced from the compositions.
    Type: Application
    Filed: December 3, 2013
    Publication date: October 29, 2015
    Inventors: Mathieu JUNG, Thomas ECKEL, Vera TASCHNER
  • Publication number: 20150307705
    Abstract: The present invention relates to flameproofed polycarbonate (PC) compositions and moulding compounds which have modified impact strength, high-temperature stability and high hydrolysis stability. The present patent application further relates to the use of the compositions for the production of moulded articles, and to the moulded articles produced from the compositions.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 29, 2015
    Inventors: Mathieu JUNG, Thomas ECKEL, Vera TASCHNER
  • Patent number: 8822576
    Abstract: The present invention relates to flame resistant molding compositions comprising polycarbonates and graft polymers which, in addition to good flow properties, exhibit good (notched) impact strength and high chemical resistance with a UL94V-0 classification at 1.5 mm. These molding compositions are particularly suitable for thin-walled housing parts in the electrical and electronics sector.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: September 2, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Vera Taschner, Thomas Eckel, Dieter Wittmann, Paul Klewpatinond, Pierre Priest
  • 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: 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
  • 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: 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: 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