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).

  • Patent number: 11952482
    Abstract: A heterophasic polypropylene composition (C) comprising: a. 60.0 to 85.0 wt.-% of a first heterophasic propylene ethylene copolymer (HECO1), having: i. 75.0 to 92.0 wt.-% of a CRYSTEX QC crystalline fraction (CF); ii. 8.0 to 25.0 wt.-% of a CRYSTEX QC soluble fraction (SF); iii. an IV(SF) of 2.00 to 4.00 dl/g; b. 5.0 to 20.0 wt.-% of a second heterophasic propylene ethylene copolymer (HECO2), having i. 15.0 to 30.0 wt.-% of a CRYSTEX QC soluble fraction (SF); ii. an IV(SF) of 2.5 to 5.0 dl/g; and c. 5.0 to 20.0 wt.-% of a polymer of ethylene (PE), being selected from an ethylene-based plastomer and an LDPE, having a density in the range from 895 to 925 kg/m3; wherein the heterophasic polypropylene composition (C) has an MFR2 in the range from 15.0 to 40.0 g/10 min, and 5.0 to 23.0 wt.-% of a CRYSTEX QC soluble fraction (SF).
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: April 9, 2024
    Assignee: BOREALIS AG
    Inventors: Cornelia Tranninger, Daniela Mileva, Georg Grestenberger
  • Patent number: 11945926
    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: Grant
    Filed: May 14, 2019
    Date of Patent: April 2, 2024
    Assignees: Abu Dhabi Polymers Co. Ltd (Borouge) LLC., Borealis AG
    Inventors: Susanne Kahlen, Daniela Mileva, Georg Grestenberger, Andreas Fuchs, Stefanie Engleder, Jürgen Huber, Shengquan Zhu
  • Publication number: 20240084080
    Abstract: The present invention is directed to a fiber reinforced composition (C) comprising a heterophasic polypropylene composition (HECO), fibers (F) and an adhesion promoter (AP) as well as an article comprising said fiber reinforced composition (C).
    Type: Application
    Filed: January 20, 2022
    Publication date: March 14, 2024
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Georg Grestenberger, Thomas Lummerstorfer
  • Publication number: 20230331881
    Abstract: Process for producing a polypropylene comprising the steps of polymerizing the polypropylene in the presence of a metallocene catalyst, visbreaking said polypropylene and subsequently aerating the polypropylene at elevated temperature.
    Type: Application
    Filed: June 14, 2021
    Publication date: October 19, 2023
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Georg Grestenberger, Ramesh Kumar Selvasankar
  • Publication number: 20230303812
    Abstract: A composition comprising (A) 40 to 80 wt.-% of a first heterophasic composition (HECO1); (B) 7 to 30 wt.-% of a second heterophasic composition (HECO2); (C) 0 to 12 wt.-% of an HDPE; (D) 2 to 12 wt.-% of a plastomer; and (E) 7 to 25 wt.-%, of talc; wherein HECO1 has a Tm of 150 to 159° C., an MFR2 of 20.0 to 120 g/10 min, a CRYSTEX crystalline fraction of 79.0 to 91.0 wt.-%, a CRYSTEX soluble fraction of 9.0 to 21.0 wt.-%, and an ethylene content of 1.5 to 6.5 mol.-%; HECO2 has an MFR2 of 2.0 to 10.0 g/10 min, a CRYSTEX crystalline fraction of 70.0 to 82.0 wt.-%, a CRYSTEX soluble fraction of 18.0 to 30.0 wt.-% and an ethylene content of 9.0 to 20.0 mol.-%; the plastomer being a C2/C8 or a C2/C4 copolymer having a density of 850 to 900 kg/m3.
    Type: Application
    Filed: August 13, 2021
    Publication date: September 28, 2023
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Georg Grestenberger
  • Publication number: 20230257570
    Abstract: A heterophasic polypropylene composition (C) comprising: a. 60.0 to 85.0 wt.-% of a first heterophasic propylene ethylene copolymer (HECO1), having: i. 75.0 to 92.0 wt.-% of a CRYSTEX QC crystalline fraction (CF); ii. 8.0 to 25.0 wt.-% of a CRYSTEX QC soluble fraction (SF); iii. an IV(SF) of 2.00 to 4.00 dl/g; b. 5.0 to 20.0 wt.-% of a second heterophasic propylene ethylene copolymer (HECO2), having i. 15.0 to 30.0 wt.-% of a CRYSTEX QC soluble fraction (SF); ii. an IV(SF) of 2.5 to 5.0 dl/g; and c. 5.0 to 20.0 wt.-% of a polymer of ethylene (PE), being selected from an ethylene-based plastomer and an LDPE, having a density in the range from 895 to 925 kg/m3; wherein the heterophasic polypropylene composition (C) has an MFR2 in the range from 15.0 to 40.0 g/10 min, and 5.0 to 23.0 wt.-% of a CRYSTEX QC soluble fraction (SF).
    Type: Application
    Filed: July 8, 2021
    Publication date: August 17, 2023
    Inventors: Cornelia Tranninger, Daniela Mileva, Georg Grestenberger
  • Publication number: 20230183431
    Abstract: Fiber reinforced composite comprising a polypropylene with high melting temperature and narrow molecular weight distribution.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 15, 2023
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Georg Grestenberger
  • Publication number: 20230174759
    Abstract: Fiber reinforced composite comprising a polypropylene with high melting temperature and very narrow molecular weight distribution.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 8, 2023
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Georg Grestenberger
  • Patent number: 11668033
    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: Grant
    Filed: June 8, 2017
    Date of Patent: June 6, 2023
    Assignee: BOREALIS AG
    Inventors: Lisa Maria Steiner, Gerhard Hubner, Jingbo Wang, Markus Gahleitner, Georg Grestenberger, Joachim Fiebig
  • Patent number: 11643537
    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: Grant
    Filed: August 23, 2019
    Date of Patent: May 9, 2023
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Friedrich Berger, Daniela Mileva, Georg Grestenberger, Markus Gahleitner
  • Patent number: 11578430
    Abstract: Melt-blown fiber comprising two polypropylenes which differ in their molecular weight.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: February 14, 2023
    Assignee: Borealis AG
    Inventors: Jingbo Wang, Joachim Fiebig, Henk Van Paridon, Markus Gahleitner, Petar Doshev, Georg Grestenberger, Antti Tynys
  • Patent number: 11530321
    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: Grant
    Filed: October 29, 2018
    Date of Patent: December 20, 2022
    Assignee: Borealis AG
    Inventors: Claudia Kniesel, Klaus Lederer, Georg Grestenberger, Erich Seitl, Andreas Jahn, Angelica Maëlle Delphine Legras
  • Patent number: 11396593
    Abstract: The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of a polypropylene homopolymer (H-PP1) for reducing the 5stiffness reduction factor of a foamed injection molded article by at least 40 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article and compared to an article comprising the same amount of a polypropylene which has been polymerized in the presence of a Ziegler-Natta catalyst.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: July 26, 2022
    Assignee: BOREALIS AG
    Inventors: Daniela Mileva, Susanne Kahlen, Patrick Rover, Georg Grestenberger, Jingbo Wang, Klaus Bernreitner, Markus Gahleitner
  • Patent number: 11377543
    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: Grant
    Filed: June 21, 2018
    Date of Patent: July 5, 2022
    Assignee: BOREALIS AG
    Inventors: Thomas Lummerstorfer, Daniela Mileva, Georg Grestenberger
  • Patent number: 11332603
    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: Grant
    Filed: June 26, 2018
    Date of Patent: May 17, 2022
    Assignee: BOREALIS AG
    Inventors: Daniela Mileva, Susanne Kahlen, Georg Grestenberger, Anton Sageder, Christof Wurnitsch, Anna Hartl, Patrick Rover, Erwin Pirklbauer
  • Patent number: 11186708
    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: Grant
    Filed: June 26, 2018
    Date of Patent: November 30, 2021
    Assignee: BOREALIS AG
    Inventors: Thomas Lummerstorfer, Claudia Kniesel, Georg Grestenberger
  • Publication number: 20210355307
    Abstract: The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of said polypropylene composition for reducing the stiffness reduction factor of a foamed injection molded article by at least 200 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 18, 2021
    Inventors: Daniela Mileva, Susanne Kahlen, Patrick Rover, Georg Grestenberger, Jingbo Wang, Klaus Bernreitner, Markus Gahleitner
  • Publication number: 20210340365
    Abstract: The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of a polypropylene homopolymer (H-PP1) for reducing the 5stiffness reduction factor of a foamed injection molded article by at least 40 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article and compared to an article comprising the same amount of a polypropylene which has been polymerized in the presence of a Ziegler-Natta catalyst.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 4, 2021
    Inventors: Daniela MILEVA, Susanne KAHLEN, Patrick ROVER, Georg GRESTENBERGER, Jingbo WANG, Klaus BERNREITNER, Markus GAHLEITNER
  • Patent number: 11111371
    Abstract: The present invention is directed to propylene composition applicable for high flow automotive exterior compounds with excellent surface appearance, said composition comprising a modified polypropylene composition and an inorganic filler.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: September 7, 2021
    Assignee: BOREALIS AG
    Inventors: Thomas Lummerstorfer, Daniela Mileva, Georg Grestenberger
  • Patent number: 11111369
    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: November 28, 2017
    Date of Patent: September 7, 2021
    Assignee: BOREALIS AG
    Inventors: Susanne Kahlen, Daniela Mileva, Georg Grestenberger, Michael Tranninger, Michael Jerabek, Dieter Nicolussi, Anna Hartl