Patents by Inventor Pirjo Jaaskelainen

Pirjo Jaaskelainen 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: 10253115
    Abstract: Process for producing of a capacitor film comprising the steps of (a) polymerizing propylene in the presence of a catalyst comprising a solid catalyst system obtaining a polypropylene, (b) subjecting said polypropylene to a film forming process obtaining a capacitor film, wherein during the polymerization step (a) said catalyst comprising the solid catalyst system fragments into nanosized catalyst fragments being distributed in said polypropylene, said solid catalyst system comprises a transition metal, a metal which is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: April 9, 2019
    Assignee: BOREALIS AG
    Inventors: Peter Denifl, Pirjo Jaaskelainen, Timo Leinonen, Bo Malm, Anders E. Nymark, Torvald Vestberg
  • Patent number: 9309393
    Abstract: Propylene polymer composition comprising a polypropylene (A), an elastomeric copolymer (B) of ethylene and at least one ?-olefin comonomer selected form the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene and 1-octene, and an ethylene C2 to C8 alkyl acrylate copolymer (C) wherein the composition has a strain hardening SH3.0/2.5 (at a Hencky strain rate of 3 s?1) of at least 0.5.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: April 12, 2016
    Assignee: Borealis Technology Oy
    Inventors: Klaus Bernreitner, Tung Pham, Espen Ommundsen, Pirjo Jääskeläinen
  • Patent number: 9079988
    Abstract: The present invention relates to a process for the preparation of a propylene copolymer P1 having ethylene-derived comonomer units, which comprises the following steps: (i) introducing propylene, ethylene, and hydrogen into a polymerisation reactor R1, wherein the ethylene is fed to the polymerisation reactor R1 in a periodically varying amount, (ii) preparing the propylene copolymer in the polymerisation reactor R1 in the presence of a catalyst.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: July 14, 2015
    Assignee: Borealis AG
    Inventors: Michiel Bergstra, John Severn, Torvald Vestberg, Pauli Leskinen, Bo Malm, Olli Tuominen, Pirjo Jääskeläinen
  • Publication number: 20140220236
    Abstract: Process for producing of a capacitor film comprising the steps of (a) polymerizing propylene in the presence of a catalyst comprising a solid catalyst system obtaining a polypropylene, (b) subjecting said polypropylene to a film forming process obtaining a capacitor film, wherein during the polymerization step (a) said catalyst comprising the solid catalyst system fragments into nanosized catalyst fragments being distributed in said polypropylene, said solid catalyst system comprises a transition metal, a metal which is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 7, 2014
    Applicant: Borealis AG
    Inventors: Peter Denifl, Pirjo Jaaskelainen, Timo Leinonen, Bo Malm, Anders E. Nymark, Torvald Vestberg
  • Patent number: 8748535
    Abstract: The present invention relates to a heterophasic polypropylene composition with rather high melt flow rate, high stiffness, acceptable impact properties and an advantageous balance between stiffness and transparency. Still further, the present invention is also directed to a process for producing the inventive polypropylene composition, to an article made of the inventive polypropylene composition and to the use of the inventive polypropylene composition for the production of films and molded articles, such as thin-walled plastic containers for packaging. The inventive heterophasic polypropylene composition comprises at least a propylene homopolymer fraction, a propylene random copolymer fraction, two different ethylene-propylene rubber fractions and an ethylene homo- or copolymer fraction.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: June 10, 2014
    Assignee: Borealis AG
    Inventors: Petar Doshev, Rao Kona Balakantha, Pirjo Jaaskelainen, Bo Malm
  • Publication number: 20140079899
    Abstract: Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, and d. being partially crystallized in the ?-modification.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 20, 2014
    Applicant: Borealis AG
    Inventors: Klaus Bernreitner, Manfred Stadlbauer, Norbert Hafner, Wilfried Töltsch, Pirjo Jääskeläinen
  • Patent number: 8541507
    Abstract: The present invention relates to a high flow polypropylene composition comprising (A) a low molecular weight propylene homopolymer fraction and (B) a high molecular weight propylene copolymer fraction, having a comonomer content of not higher than 8 wt %, wherein the ratio between the MFR2 of fraction (A) and the MFR2 of fraction (B) is at least 3 and wherein the MFR2 of the entire composition is at least 5 g/10 min, the values of MFR2 being measured according to ISO 1133 (230° C., 2.16 kg load), and to processes for producing such compositions and to articles made there from.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: September 24, 2013
    Assignee: Borealis AG
    Inventors: Petar Doshev, Pirjo Jaaskelainen, Saeid Kheirandish, Pauli Leskinen, Geir Kristian Johnsen, Hao Ding
  • Patent number: 8394893
    Abstract: The invention relates to a heterophasic alpha-olefÊn random copolymer composition with a melting temperature (Tm) of at least 130° C. and a flexural modulus of not higher than 1000 MPa5 whereby the inventive composition comprises an al-pha-olefin random copolymer component (A) of at least two alpha-olefÊn (co)polymer fractions (i) and (ii) having a different comonomer content, whereby at least one of the fractions is an alpha-olefÊn random copolymer, and a rubber component (B).
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: March 12, 2013
    Assignee: Borealis Polymers Oy
    Inventors: Torwald Vestberg, Bo Malm, Pirjo Jääskeläinen
  • Publication number: 20130005902
    Abstract: The present invention relates to a heterophasic polypropylene composition with rather high melt flow rate, high stiffness, acceptable impact properties and an advantageous balance between stiffness and transparency. Still further, the present invention is also directed to a process for producing the inventive polypropylene composition, to an article made of the inventive polypropylene composition and to the use of the inventive polypropylene composition for the production of films and moulded articles, such as thin-walled plastic containers for packaging. The inventive heterophasic polypropylene composition comprises at least a propylene homopolymer fraction, a propylene random copolymer fraction, two different ethylene-propylene rubber fractions and an ethylene homo- or copolymer fraction.
    Type: Application
    Filed: December 14, 2010
    Publication date: January 3, 2013
    Inventors: Petar Doshev, Rao Kona Balakantha, Pirjo Jaaskelainen, Bo Malm
  • Patent number: 8288481
    Abstract: Novel polyolefin compositions comprising (A) a first propylene-ethylene random copolymer and (B) a second propylene-ethylene random copolymer, wherein the polyolefin composition has an ethylene content CMAB of 1-10 wt % and an MFR(AB) of 3-20 g/10 min with the proviso that CMAB>CMA and MFR(A)/MFR(AB)>1.45 and where the polyolefin composition further has a randomness R of the ethylene distribution in the polymer chain of ?0.945. Articles made from the novel polyolefin compositions have excellent optical properties even after subjecting them to a heat sterilization step.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: October 16, 2012
    Assignee: Borealis Technology Oy
    Inventors: Joachim Fiebig, Markus Gahleitner, Pirjo Jääskeläinen, Bo Malm, Tonja Schedenig
  • Publication number: 20120015170
    Abstract: The present invention relates to a high flow polypropylene composition comprising (A) a low molecular weight propylene homopolymer fraction and (B) a high molecular weight propylene copolymer fraction, having a comonomer content of not higher than 8 wt %, wherein the ratio between the MFR2 of fraction (A) and the MFR2 of fraction (B) is at least 3 and wherein the MFR2 of the entire composition is at least 5 g/10 min, the values of MFR2 being measured according to ISO 1133 (230° C., 2.16 kg load), and to processes for producing such compositions and to articles made there from.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 19, 2012
    Applicant: BOREALIS AG
    Inventors: Petar Doshev, Pirjo Jaaskelainen, Saeid Kheirandish, Pauli Leskinen, Geir Kristian Johnsen, Hao Ding
  • Publication number: 20110293869
    Abstract: The present invention provides polymer compositions, comprising a random propylene copolymer having an MFR2 value of 70 or more (g/10 min), which is in particular suitable for preparing thin-walled packaging products by injection molding.
    Type: Application
    Filed: June 29, 2007
    Publication date: December 1, 2011
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Elina Myhre, Pirjo Jääskeläinen
  • Publication number: 20110224387
    Abstract: The present invention relates to a process for the preparation of a propylene copolymer P1 having ethylene-derived comonomer units, which comprises the following steps: (i) introducing propylene, ethylene, and hydrogen into a polymerisation reactor R1, wherein the ethylene is fed to the polymerisation reactor R1 in a periodically varying amount, (ii) preparing the propylene copolymer in the polymerisation reactor R1 in the presence of a catalyst.
    Type: Application
    Filed: October 6, 2009
    Publication date: September 15, 2011
    Applicant: BOREALIS AG
    Inventors: Michiel Bergstra, John Severn, Torvald Vestberg, Pauli Leskinen, Bo Malm, Olli Tuominen, Pirjo Jääskeläinen
  • Publication number: 20110104416
    Abstract: Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, and d. being partially crystallized in the ?-modification.
    Type: Application
    Filed: May 20, 2009
    Publication date: May 5, 2011
    Applicant: Borealis AG
    Inventors: Klaus Bernreitner, Manfred Stadlbauer, Norbert Hafner, Wilfried Töltsch, Pirjo Jääskeläinen
  • Publication number: 20100272939
    Abstract: Novel polyolefin compositions comprising (A) a first propylene-ethylene random copolymer and (B) a second propylene-ethylene random copolymer, wherein the polyolefin composition has an ethylene content CMAB of 1-10 wt % and an MFR(AB) of 3-20 g/10 min with the proviso that CMAB>CMA and MFR(A)/MFR(AB)>1.45 and where the polyolefin composition further has a randomness R of the ethylene distribution in the polymer chain of 0.945. Articles made from the novel polyolefin compositions have excellent optical properties even after subjecting them to a heat sterilisation step.
    Type: Application
    Filed: August 26, 2008
    Publication date: October 28, 2010
    Applicant: Borealis Technology Oy
    Inventors: Joachim Fiebig, Markus Gahleitner, Pirjo Jääskeläinen, Bo Malm, Tonja Schedenig
  • Publication number: 20100249326
    Abstract: Propylene polymer composition comprising a polypropylene (A), an elastomeric copolymer (B) of ethylene and at least one ?-olefin comonomer selected form the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene and 1-octene, and an ethylene C2 to C8 alkyl acrylate copolymer (C) wherein the composition has a strain hardening SH3.0/2.5 (at a Hencky strain rate of 3 s?1) of at least 0.5.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 30, 2010
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Klaus Bernreitner, Tung Pham, Espen Ommundsen, Pirjo Jääskeläinen
  • Patent number: 7683141
    Abstract: The present invention relates in a first embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the sealing initiation temperature SIT of the film is Tm?30° C. or less, preferably Tm?33° C. or less, in a second embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the film is having a relative reduction of the static friction value (inside-inside) from one to four days of 35% or more, preferably 40% or more, in a third embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the distribution of the comonomer in the random copolymer determined according to TREF method is multimodal, preferably bimodal, in a fourth embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol %, wherein the copolymer is having an elution interval of 50° C.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: March 23, 2010
    Assignee: Borealis Technology Oy
    Inventors: Pirjo Jaaskelainen, Markus Gahleitner, Manfred Kirchberger, Paivi Pitkanen
  • Publication number: 20100003435
    Abstract: The present invention provides an article comprising a biaxially oriented polypropylene composition, wherein said composition comprises a multimodal polypropylene and a polymeric nucleating agent. The articles are suitable for use in the medical and food industries.
    Type: Application
    Filed: November 16, 2007
    Publication date: January 7, 2010
    Inventors: Harry Oysaedm, Pirjo Jaaskelainen, Espen Ommundsen, Geir Morten Johansen, Max Wach-Holder
  • Publication number: 20090306271
    Abstract: A multimodal polymer composition comprising: (A) a polypropylene homopolymer or a propylene random copolymer comprising propylene and up to 5 weight % of comonomer selected from ethylene and/or C4-10 alpha olefin; and (B) a random copolymer of propylene and comonomer selected from ethylene and/or C4-10 alpha olefin; wherein the total comonomer content of the polymer composition is at least 0.5 wt % and the melt flow rate of the polymer blend is at least 6 g/10 min when measured according to ISO 1133 at 230° C. and a load of 2.16 kg.
    Type: Application
    Filed: November 20, 2006
    Publication date: December 10, 2009
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Espen Ommundsen, Pirjo Jaaskelainen, Max Wacholder, Markus Gahleitner, Harry Oysaed, Geir Morten Johansen
  • Patent number: 7619165
    Abstract: Insulation layer for cables comprising a heterophasic polymer composition having superior mechanical and electrical properties and being environmentally friendly. The heterophasic polymer composition comprises a polymer matrix and dispersed therein a propylene copolymer having a weight average particle size of less than 1 ?m.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: November 17, 2009
    Assignee: Borealis Technology Oy
    Inventors: Markus Gahleitner, Karl-Michael Jager, Robert Nigel Hampton, Pirjo Jaaskelainen, Magnus Palmlof, Bo Malm, Merja Poikela, John Haugen