Patents by Inventor Klaus Bernreitner

Klaus Bernreitner 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).

  • Process for producing pellets of copolymers of propylene
    Patent number: 11292156
    Abstract: The present invention provides a process for extruding and pelletising a propylene copolymer. The copolymer has a content of comonomer from 5 to 40% by mole, a melt flow rate MFR2 measured at 230° C. under a load of 2.16 kg of from 0.5 to 15 g/10 min and a content of cold xylene soluble material of from 20 to 60% by weight. The process comprises extruding the propylene copolymer through a die plate into an underwater pelletiser and cutting strands of the propylene copolymer into pellets in the underwater pelletiser, wherein the ratio of the mass flow rate of the propylene copolymer to the mass flow rate of the cooling water is from 0.020 to 0.060; and the propylene copolymer comprises a polymeric nucleating agent.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 5, 2022
    Assignee: Borealis AG
    Inventors: Martina Sandholzer, Klaus Bernreitner, Hermann Braun, Hermann Prokschi, Ulrich Schreider, Frank Schroder, Thomas Hager, Katja Klimke, Markus Gahleitner
  • Polypropylene composition
    Patent number: 11292900
    Abstract: Polypropylene composition comprising a heterophasic polypropylene (HECO) and a bimodal metallocene linear low-density polyethylene (mLLDPE), as well as articles obtained from said polypropylene composition. The present invention is further related to the use of a bimodal metallocene linear low-density polyethylene (mLLDPE) as modifier for heterophasic polypropylenes (HECOs) to improve impact strength and optics.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 5, 2022
    Assignee: Borealis AG
    Inventors: Markus Gahleitner, Jingbo Wang, Klaus Bernreitner, Pauli Leskinen
  • Polypropylene composition with flame retardant activity
    Patent number: 11248115
    Abstract: The present invention relates to a polymer composition with flame retardant activity, to a use of the polymer composition for producing an article, to an article comprising the polymer composition, preferably to an article which comprises a layer element comprising at least one layer which comprises the polymer composition.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 15, 2022
    Assignee: BOREALIS AG
    Inventors: Minna Aarnio-Winterhof, Martina Sandholzer, Klaus Bernreitner
  • Heterophasic polypropylene with propylene hexene random copolymer as matrix
    Patent number: 11230638
    Abstract: The present invention is directed to a heterophasic polypropylene composition of high transparency based on excellent compatibility of the propylene 1-hexene random copolymer used as matrix with different types of external modifiers dispersed within the matrix. The present invention is further directed to a process for producing such a polypropylene composition and to a film, in particular a cast film, obtained from such a polypropylene composition. The polypropylene composition comprising a blend of a propylene copolymer comprising 2.5 to 12.0 wt % of 1-hexene as a comonomer, and having a melt flow rate MFR2 of 0.1 to 100 g/10 min, and an ethylene homo- or copolymer having a melt flow rate MFR2 of 0.05 to 30.0 g/10 min and a density of 850 to 920 kg/m3, wherein the melt flow rate MFR2 of the polypropylene composition is from 1.0 to 12.0 g/10 min.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: January 25, 2022
    Assignee: BOREALIS AG
    Inventors: Markus Gahleitner, Jingbo Wang, Klaus Bernreitner, Pauli Leskinen, Cornelia Tranninger
  • POLYPROPYLENE COMPOSITION WITH IMPROVED OPTICAL PROPERTIES AND WHITENING RESISTANCE
    Publication number: 20220017733
    Abstract: The invention is related to polypropylene compositions combining high impact strength with good haze and additionally showing good stress whitening resistance.
    Type: Application
    Filed: October 29, 2019
    Publication date: January 20, 2022
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen
  • POLYPROPYLENE COMPOSITION FOR FILM SEALING LAYER
    Publication number: 20220017734
    Abstract: New polypropylene composition which combines low sealing initiation temperature (SIT), low overall migration, good mechanical and optical properties, its use and articles made therefrom.
    Type: Application
    Filed: December 5, 2019
    Publication date: January 20, 2022
    Inventors: Jingbo Wang, Klaus Bernreitner, Markus Gahleitner, Pauli Leskinen
  • PROPYLENE BUTENE COPOLYMER
    Publication number: 20210395474
    Abstract: The invention provides a multimodal propylene butene random copolymer having a melt flow rate (MFR2) of 1.0 to 20.0 g/10 min and a butene content of 1.5 to 8.0 wt %, wherein said copolymer is prepared using a single site catalyst and wherein said copolymer comprises (i) 30 to 70 wt % of a propylene butene copolymer (A) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 0.5 to 10.0 wt %; and (ii) 70 to 30 wt % of a propylene butene copolymer (B) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 1.0 to 8.0 wt %; wherein copolymers (A) and (B) are different.
    Type: Application
    Filed: November 14, 2019
    Publication date: December 23, 2021
    Inventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Matthias HOFF
  • PROPYLENE BUTENE COPOLYMER
    Publication number: 20210395427
    Abstract: The invention provides a multimodal propylene butene random copolymer having a melt flow rate (MFR2) of 1.0 to 20.0 g/10 min and a butene content of 5.0 to 20.0 wt %, wherein said copolymer is prepared using a single site catalyst and wherein said copolymer comprises: (i) 30 to 70 wt % of a propylene butene copolymer (A) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 2.0 to 10.0 wt %; and (ii) 70 to 30 wt % of a propylene butene copolymer (B) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 4.0 to 20.0 wt %; wherein copolymers (A) and (B) are different.
    Type: Application
    Filed: November 14, 2019
    Publication date: December 23, 2021
    Inventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Matthias HOFF
  • COMPOSITION
    Publication number: 20210395512
    Abstract: The invention provides a polyolefin composition comprising: (i) 55 to 95 wt % of a propylene butene random copolymer having an MFR2 of 1.0 to 20.0 g/10 min, a butene content of 1.5 to 8.0 wt % and prepared using a single site catalyst; and (ii) to 45 wt % of an ethylene based plastomer having a density of 860 to 905 kg/m3, an MFR2 of 0.3 to 30 g/10 min and prepared using a single site catalyst.
    Type: Application
    Filed: November 14, 2019
    Publication date: December 23, 2021
    Inventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Matthias HOFF
  • POLYOLEFIN COMPOSITION WITH IMPROVED IMPACT AND WHITENING RESISTANCE
    Publication number: 20210363314
    Abstract: The invention is related to polymer compositions combining high impact strength with good haze and additionally showing good stress whitening resistance.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 25, 2021
    Inventors: Jingbo Wang, Markus Gahleitner, Friedrich Berger, Klaus Bernreitner, Pauli Leskinen
  • FOAMABLE POLYPROPYLENE COMPOSITION
    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
  • POLYOLEFIN COMPOSITION WITH IMPROVED BALANCE OF PROPERTIES
    Publication number: 20210355308
    Abstract: The present invention is directed to a polyolefin composition comprising a blend of a heterophasic polypropylene composition and 5.0 to 30.0 wt % of an ethylene homo- or copolymer, the ethylene homo- or copolymer having a density of at least 941 kg/m3 and a melt flow rate MFR21 of 1 to 10 g/10 min. The heterophasic polypropylene composition comprises a propylene homopolymer or a propylene ethylene random copolymer and an elastomeric ethylene propylene rubber, and is characterized by 75.0 to 95.0 wt % of a crystalline fraction having an ethylene content of up to 4.0 wt % and an MFR2 of 0.1 to 100 g/10 min, and 5.0 to 25.0 wt % of a soluble fraction having an ethylene content of 10.0 to 70.0 wt % and an intrinsic viscosity of 1.0 to 4.0 dl/kg, wherein the crystalline fraction and the soluble fraction are determined in 1,2,4-trichlorobenzene at 40° C.
    Type: Application
    Filed: October 24, 2019
    Publication date: November 18, 2021
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Yi Liu
  • PROPYLENE COPOLYMER WITH EXCELLENT OPTICAL PROPERTIES
    Publication number: 20210347971
    Abstract: The present invention is directed to a polypropylene composition (P) comprising a first random propylene copolymer (A) and a second random propylene copolymer (B), said first random propylene copolymer (A) and said second random propylene copolymer (B) being copolymers of propylene and 1-hexene. Further, the present invention is directed to a blown film comprising said polypropylene composition (P).
    Type: Application
    Filed: September 9, 2019
    Publication date: November 11, 2021
    Applicant: BOREALIS AG
    Inventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Peter NIEDERSÜSS
  • A MULTILAYER FILM
    Publication number: 20210347155
    Abstract: Multilayer film of at least three layers, one core layer and at least one sealing layer wherein 5 the sealing layer comprises a linear low density polyethylene having a density in the range of 0.915 to 0.925 g/cm3, and the core layer comprises a propylene 1-hexene copolymer, said copolymer has an 1-hexene content in the range of 4.5 to 8.0 wt.-% and a xylene soluble fraction of more than 10.0 wt.-%.
    Type: Application
    Filed: September 19, 2019
    Publication date: November 11, 2021
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Peter Niedersüss
  • MULTILAYER FILM
    Publication number: 20210339509
    Abstract: Multilayer film of at least three layers, one core layer and at least one sealing layer wherein the sealing layer comprises a linear low density polyethylene having a density in the range of 0.915 to 0.925 g/cm3, and the core layer comprises a propylene 1-hexene copolymer, said copolymer has an 1-hexene content in the range of 2.0 to 5.0 wt.-% and a xylene soluble fraction in the range of 0.3 to 15.0 wt.-%.
    Type: Application
    Filed: September 20, 2019
    Publication date: November 4, 2021
    Inventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Peter NIEDERSÜSS
  • FOAMABLE POLYPROPYLENE COMPOSITIONS
    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
  • PROPYLENE RANDOM COPOLYMER FOR USE IN FILM APPLICATIONS
    Publication number: 20210332227
    Abstract: The present invention is directed to a polypropylene composition (P) comprising a bimodal copolymer of propylene and 1-hexene prepared in the presence of a metallocene catalyst, said bimodal copolymer having a melt flow rate MFR2 in the range of 4.0 to 20.0 g/10 min. Further, the present invention is directed to a method for preparing the copolymer (C) and an article comprising said polypropylene composition (P).
    Type: Application
    Filed: September 9, 2019
    Publication date: October 28, 2021
    Applicant: BOREALIS AG
    Inventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Peter NIEDERSÜSS
  • SOFT AND TRANSPARENT PROPYLENE COMPOLYMERS
    Publication number: 20210309844
    Abstract: The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer (RAHECO) and a plastomer (PL) as well as a process for the preparation of said polypropylene composition and a film obtained from said polypropylene composition (C).
    Type: Application
    Filed: April 20, 2021
    Publication date: October 7, 2021
    Inventors: Markus Gahleitner, Jingbo Wang, Carl-Gustaf Ek, Klaus Bernreitner
  • PROPYLENE RANDOM COPOLYMER BASED HOT MELT ADHESIVE COMPOSITION
    Publication number: 20210277290
    Abstract: The present application relates to an adhesive composition comprising a polypropylene resin, a tackifying resin and a plasticizer resin having a superior balance of properties in regard of Brookfield viscosity and maximum probe tack. It further relates to an article comprising the adhesive composition and to a process for producing said article. The application also relates to the use of the adhesive composition in the preparation of an article.
    Type: Application
    Filed: August 5, 2018
    Publication date: September 9, 2021
    Inventors: Jingbo Wang, Carl-Gustaf Ek, Klaus Bernreitner, Jose Miguel Martin-Martinez, Alfonso Delucas-Freile, Monica Fuensanta-Soriano
  • MULTIMODAL PROPYLENE RANDOM COPOLYMER BASED COMPOSITION SUITABLE AS HOT MELT ADHESIVE COMPOSITIONS
    Publication number: 20210261764
    Abstract: The present application relates to a composition comprising a polypropylene resin, which comprises a multimodal propylene random copolymer (R-PP) with a melt flow rate MFR of at least 50 g/10 min and a propylene copolymer (PC), which is different from the multimodal propylene random copolymer (R-PP), and a tackifying resin.
    Type: Application
    Filed: August 5, 2019
    Publication date: August 26, 2021
    Inventors: Jingbo Wang, Carl-Gustaf Ek, Klaus Bernreitner, Jose Miguel Martin-Martinez, Alfonso Delucas-Freile, Monica Fuensanta-Soriano