Patents by Inventor Georg Grestenberger

Georg Grestenberger 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: 20210253838
    Abstract: The present invention relates to a polypropylene based composition comprising:(A) from 40.0 to 85.0 wt % of a heterophasic propylene copolymer having a content of xylene cold soluble (XCS) fraction in the range of 15 wt % to 35 wt %, based on the total weight of the heterophasic propylene copolymer;(B) from 5.0 to 15.0 wt % of a terpolymer of propylene with ethylene and 1-butene comonomer units having a melting temperature Tm as measured in differential scanning calorimetry (DSC) of less than 140° C.; (C) from 5.0 to 25.0 wt % of an ethylene copolymer with alpha-olefin comonomer units having from 4 to 12 carbon atoms with a density of from 850 kg/m3 to 900 kg/m3; and(D) from 5.0 to 25.0 wt % of an inorganic filler, wherein the amounts of components (A), (B), (C), and (D) are all based on the total weight amount of the polypropylene based composition, said polypropylene based composition having a melt flow rate (MFR2) as measured at 230° C. and 2.16 kg load in accordance with ISO 1133 in the range of 2.
    Type: Application
    Filed: August 23, 2019
    Publication date: August 19, 2021
    Inventors: Jingbo Wang, Friedrich Berger, Daniela Mileva, Georg Grestenberger, Markus Gahleitner
  • Publication number: 20210238376
    Abstract: The present invention is directed to a polypropylene composition (C) a melt flow rate MFR2 (230° C.) determined according to ISO 1133 in the range of 15 to 40 g/ 10 min, the use of said polypropylene composition (C) for the production of a foamed article and a foamed article comprising said polypropylene composition (C).
    Type: Application
    Filed: May 14, 2019
    Publication date: August 5, 2021
    Applicants: BOREALIS AG, ABU DHABI POLYMERS CO. LTD (BOROUGE) LLC.
    Inventors: Susanne KAHLEN, Daniela MILEVA, Georg GRESTENBERGER, Andreas FUCHS, Stefanie ENGLEDER, Jürgen HUBER, Shengquan ZHU
  • Publication number: 20210221990
    Abstract: The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer (HECO), comprising a matrix being a propylene polymer (PP1), an elastomeric propylene copolymer (EPR) being dispersed in said matrix and a nucleating agent (NU). The polypropylene composition (C) further comprises polymeric fibers (PE). The present invention is also directed to a foamed article comprising the polypropylene composition (C) and the use of polymeric fibers (PE) as an impact modifier for a heterophasic propylene copolymer (HECO).
    Type: Application
    Filed: July 30, 2019
    Publication date: July 22, 2021
    Inventors: Susanne Kahlen, Daniela Mileva, Georg Grestenberger, Michael Jerabek, Thomas Lummerstorfer
  • Patent number: 11053379
    Abstract: A heterophasic propylene copolymer (HECO) comprising a polypropylene matrix having a melt flow rate MFR2 (230° C.) in the range of 45 to 75 g/10 min for the preparation of molde articles with low CLTE.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 6, 2021
    Assignee: BOREALIS AG
    Inventors: Georg Grestenberger, Daniela Mileva, Susanne Kahlen
  • Patent number: 11053371
    Abstract: Melt-blown webs having a widened process window and better barrier properties (3rd drop, cm H2O resp. mbar). The melt-blown webs are made from so-called “controlled rheology” propylene (CR-PP), which has been visbroken without the use of peroxide but with a specific type of visbreaking additive.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 6, 2021
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Joachim Fiebig, Henk Van Paridon, Markus Gahleitner, Georg Grestenberger, Jeroen Vanhoutte
  • Publication number: 20210179831
    Abstract: The present invention relates to a polypropylene based composition comprising: (A) from 40.0 to 85.0 wt % of a heterophasic propylene copolymer having a content of xylene cold soluble (XCS) fraction in the range of 15 wt % to 35 wt %, based on the total weight of the heterophasic propylene copolymer; (B) from 5.0 to 15.0 wt % of a random copolymer of propylene with comonomer units selected from ethylene and alpha-olefins having from 4 to 12 carbon atoms which has been polymerized in the presence of a single-site catalyst system and has a melting temperature Tm as measured in differential scanning calorimetry (DSC) of less than 140° C.; (C) from 5.0 to 25.0 wt % of an ethylene copolymer with alpha-olefin comonomer units having from 4 to 12 carbon atoms with a density of from 850 kg/m3 to 900 kg/m3; and (D) from 5.0 to 25.
    Type: Application
    Filed: August 23, 2019
    Publication date: June 17, 2021
    Inventors: Jingbo Wang, Klaus Bernreitner, Daniela Mileva, Georg Grestenberger, Markus Gahleitner
  • Patent number: 10941288
    Abstract: The present invention is directed to a stiff propylene composition with good dimensional stability and excellent surface appearance, said composition comprising a modified polypropylene composition and an inorganic filler.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: March 9, 2021
    Assignee: Borealis AG
    Inventors: Daniela Mileva, Georg Grestenberger, Thomas Lummerstorfer
  • Publication number: 20210061982
    Abstract: A heterophasic propylene copolymer (HECO) comprising a polypropylene matrix having a melt flow rate MFR2 (230° C.) in the range of 45 to 75 g/10 min for the preparation of molde articles with low CLTE.
    Type: Application
    Filed: January 27, 2017
    Publication date: March 4, 2021
    Inventors: Georg Grestenberger, Daniela Mileva, Susanne Kahlen
  • Patent number: 10920057
    Abstract: The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer and an inorganic filler, the use of said polypropylene composition (C) for the production of a foamed article and a foamed article obtained from said polypropylene composition (C).
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: February 16, 2021
    Assignee: BOREALIS AG
    Inventors: Georg Grestenberger, Susanne Kahlen, Daniela Mileva, Wolfgang Stockreiter, Erwin Kastner, Jochen Kastl
  • Patent number: 10829624
    Abstract: The present invention is directed to a polypropylene composition, said polypropylene composition comprising two different polypropylene fractions (PP1) and (PP2), wherein the first polypropylene (PP1) has a weight molecular weight Mw in the range of above 45 kg/mol to below 65 kg/mol and a melting temperature of at least 140° C.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: November 10, 2020
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Markus Gahleitner, Petar Doshev, Georg Grestenberger
  • Publication number: 20200325607
    Abstract: High quality melt-blown webs having improved barrier properties (3rd drop, cm H2O resp. mbar) and a widened process window. The melt-blown webs show a specific chain structure.
    Type: Application
    Filed: June 8, 2017
    Publication date: October 15, 2020
    Inventors: Lisa Maria Steiner, Gerhard Hubnar, Jingbo Wang, Markus Gahleitner, Georg Grestenberger, Joachim Fiebig
  • Publication number: 20200263015
    Abstract: The invention is directed at a polypropylene composition comprising a heterophasic propylene copolymer, a plastomer and an inorganic filler. Furthermore, the invention is directed at an article comprising the polypropylene composition and the use of the polypropylene composition to improve the adhesion performance.
    Type: Application
    Filed: October 29, 2018
    Publication date: August 20, 2020
    Applicant: BOREALIS AG
    Inventors: Claudia KNIESEL, Klaus LEDERER, Georg GRESTENBERGER, Erich SEITL, Andreas JAHN, Angelica Maëlle Delphine LEGRAS
  • Publication number: 20200207943
    Abstract: Melt-blown webs having a widened process window and better barrier properties(3rd drop, cm H2O resp. mbar). The melt-blown webs are made from so-called “controlled rheology” propylene (CR-PP), which has been visbroken without the use of peroxide but with a specific type of visbreaking additive.
    Type: Application
    Filed: September 23, 2016
    Publication date: July 2, 2020
    Inventors: Jingbo Wang, Joachim Fiebig, Henk Van Paridon, Markus Gahleitner, Georg Grestenberger, Jeroen Vanhoutte
  • Publication number: 20200207960
    Abstract: The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer (HECO1) having an intrinsic viscosity (IV) of the xylene soluble fraction (XCS) above 3.5 dl/g, an inorganic filler (F) and a nucleating agent (NU) being a dicarboxylic acid and/or a salt thereof. Further, the present invention is directed to the use of said polypropylene composition (C) for the production of a foamed article as well as a foamed article comprising said polypropylene composition (C). The present invention is also directed to the use of a nucleating agent (NU) being dicarboxylic acid and/or a salt thereof for the reduction of tigerskin of a polypropylene composition.
    Type: Application
    Filed: June 26, 2018
    Publication date: July 2, 2020
    Inventors: Daniela Mileva, Susanne Kahlen, Georg Grestenberger, Anton Sageder, Christof Wurnitsch, Anna Hartl, Patrick Rover, Erwin Pieklbauer
  • Patent number: 10696834
    Abstract: A polyolefin composition comprising a heterophasic propylene copolymer and a polar modified ?-polyolefin.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 30, 2020
    Assignee: BOREALIS AG
    Inventors: Georg Grestenberger, Daniela Mileva, Susanne Kahlen, Michael Jerabek
  • Publication number: 20200181378
    Abstract: The present invention is directed to a polypropylene composition (C) comprising a polypropylene matrix, a dispersed phase comprising two different elastomeric ethylene copolymers and an inorganic filler. The present invention is further directed to an article comprising said polypropylene composition (C).
    Type: Application
    Filed: June 26, 2018
    Publication date: June 11, 2020
    Inventors: Thomas Lummerstorfer, Claudia Kniesel, Georg Grestenberger
  • Patent number: 10647838
    Abstract: A heterophasic propylene copolymer (HECO) comprising a polypropylene matrix having a melt flow rate MFR2 (230° C.) in the range of 40 to 120 g/10 min and a comonomer content in the range of 30 to 75 mol-% for the preparation of molded articles with low CLTE.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 12, 2020
    Assignee: BOREALIS AG
    Inventors: Georg Grestenberger, Daniela Mileva, Susanne Kahlen, Pavel Shutov
  • Publication number: 20200123361
    Abstract: The present invention is directed to a heterophasic polypropylene composition (HC) comprising a modified polypropylene composition (mPP), a process for preparing said heterophasic polypropylene composition (HC) and an article comprising said heterophasic polypropylene composition (HC). The present invention is further directed to the use of a composition comprising a peroxide (PO) and a crosslinking agent (CA) to reduce tigerskin of a polypropylene composition (PP).
    Type: Application
    Filed: June 21, 2018
    Publication date: April 23, 2020
    Inventors: Thomas Lummerstorfer, Daniela Mileva, Georg Grestenberger
  • Patent number: 10557027
    Abstract: The present invention is directed to a heterophasic propylene copolymer (HECO), a polyolefin composition (PO) comprising the heterophasic propylene copolymer (HECO), an automotive article comprising the heterophasic propylene copolymer (HECO) and/or the polyolefin composition (PO) and a process for the preparation of the polyolefin composition (PO) as well as the use of the heterophasic propylene copolymer (HECO) for improving the mechanical properties of a polyolefin composition (PO).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: February 11, 2020
    Assignee: Borealis AG
    Inventors: Georg Grestenberger, Martina Sandholzer
  • Patent number: 10472509
    Abstract: The present invention is directed to a heterophasic propylene copolymer (HECO), a polyolefin composition (PO) comprising the heterophasic propylene copolymer (HECO), an automotive article comprising the heterophasic propylene copolymer (HECO) and/or the polyolefin composition (PO) and a process for the preparation of the polyolefin composition (PO) as well as the use of the heterophasic propylene copolymer (HECO) for improving the mechanical properties of a polyolefin composition (PO).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 12, 2019
    Assignee: BOREALIS AG
    Inventors: Georg Grestenberger, Martina Sandholzer