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).
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Patent number: 10253115Abstract: 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: GrantFiled: August 29, 2012Date of Patent: April 9, 2019Assignee: BOREALIS AGInventors: Peter Denifl, Pirjo Jaaskelainen, Timo Leinonen, Bo Malm, Anders E. Nymark, Torvald Vestberg
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Patent number: 9309393Abstract: 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: GrantFiled: October 1, 2008Date of Patent: April 12, 2016Assignee: Borealis Technology OyInventors: Klaus Bernreitner, Tung Pham, Espen Ommundsen, Pirjo Jääskeläinen
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Patent number: 9079988Abstract: 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: GrantFiled: October 6, 2009Date of Patent: July 14, 2015Assignee: Borealis AGInventors: Michiel Bergstra, John Severn, Torvald Vestberg, Pauli Leskinen, Bo Malm, Olli Tuominen, Pirjo Jääskeläinen
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Publication number: 20140220236Abstract: 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: ApplicationFiled: August 29, 2012Publication date: August 7, 2014Applicant: Borealis AGInventors: Peter Denifl, Pirjo Jaaskelainen, Timo Leinonen, Bo Malm, Anders E. Nymark, Torvald Vestberg
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Patent number: 8748535Abstract: 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: GrantFiled: December 14, 2010Date of Patent: June 10, 2014Assignee: Borealis AGInventors: Petar Doshev, Rao Kona Balakantha, Pirjo Jaaskelainen, Bo Malm
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Publication number: 20140079899Abstract: 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: ApplicationFiled: November 20, 2013Publication date: March 20, 2014Applicant: Borealis AGInventors: Klaus Bernreitner, Manfred Stadlbauer, Norbert Hafner, Wilfried Töltsch, Pirjo Jääskeläinen
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Patent number: 8541507Abstract: 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: GrantFiled: June 30, 2010Date of Patent: September 24, 2013Assignee: Borealis AGInventors: Petar Doshev, Pirjo Jaaskelainen, Saeid Kheirandish, Pauli Leskinen, Geir Kristian Johnsen, Hao Ding
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Patent number: 8394893Abstract: 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: GrantFiled: January 12, 2006Date of Patent: March 12, 2013Assignee: Borealis Polymers OyInventors: Torwald Vestberg, Bo Malm, Pirjo Jääskeläinen
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Publication number: 20130005902Abstract: 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: ApplicationFiled: December 14, 2010Publication date: January 3, 2013Inventors: Petar Doshev, Rao Kona Balakantha, Pirjo Jaaskelainen, Bo Malm
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Patent number: 8288481Abstract: 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: GrantFiled: August 26, 2008Date of Patent: October 16, 2012Assignee: Borealis Technology OyInventors: Joachim Fiebig, Markus Gahleitner, Pirjo Jääskeläinen, Bo Malm, Tonja Schedenig
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Publication number: 20120015170Abstract: 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: ApplicationFiled: June 30, 2010Publication date: January 19, 2012Applicant: BOREALIS AGInventors: Petar Doshev, Pirjo Jaaskelainen, Saeid Kheirandish, Pauli Leskinen, Geir Kristian Johnsen, Hao Ding
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Publication number: 20110293869Abstract: 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: ApplicationFiled: June 29, 2007Publication date: December 1, 2011Applicant: BOREALIS TECHNOLOGY OYInventors: Elina Myhre, Pirjo Jääskeläinen
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Publication number: 20110224387Abstract: 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: ApplicationFiled: October 6, 2009Publication date: September 15, 2011Applicant: BOREALIS AGInventors: Michiel Bergstra, John Severn, Torvald Vestberg, Pauli Leskinen, Bo Malm, Olli Tuominen, Pirjo Jääskeläinen
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Publication number: 20110104416Abstract: 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: ApplicationFiled: May 20, 2009Publication date: May 5, 2011Applicant: Borealis AGInventors: Klaus Bernreitner, Manfred Stadlbauer, Norbert Hafner, Wilfried Töltsch, Pirjo Jääskeläinen
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Publication number: 20100272939Abstract: 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: ApplicationFiled: August 26, 2008Publication date: October 28, 2010Applicant: Borealis Technology OyInventors: Joachim Fiebig, Markus Gahleitner, Pirjo Jääskeläinen, Bo Malm, Tonja Schedenig
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Publication number: 20100249326Abstract: 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: ApplicationFiled: October 1, 2008Publication date: September 30, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Klaus Bernreitner, Tung Pham, Espen Ommundsen, Pirjo Jääskeläinen
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Patent number: 7683141Abstract: 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: GrantFiled: June 26, 2002Date of Patent: March 23, 2010Assignee: Borealis Technology OyInventors: Pirjo Jaaskelainen, Markus Gahleitner, Manfred Kirchberger, Paivi Pitkanen
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Publication number: 20100003435Abstract: 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: ApplicationFiled: November 16, 2007Publication date: January 7, 2010Inventors: Harry Oysaedm, Pirjo Jaaskelainen, Espen Ommundsen, Geir Morten Johansen, Max Wach-Holder
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Publication number: 20090306271Abstract: 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: ApplicationFiled: November 20, 2006Publication date: December 10, 2009Applicant: BOREALIS TECHNOLOGY OYInventors: Espen Ommundsen, Pirjo Jaaskelainen, Max Wacholder, Markus Gahleitner, Harry Oysaed, Geir Morten Johansen
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Patent number: 7619165Abstract: 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: GrantFiled: June 20, 2005Date of Patent: November 17, 2009Assignee: Borealis Technology OyInventors: Markus Gahleitner, Karl-Michael Jager, Robert Nigel Hampton, Pirjo Jaaskelainen, Magnus Palmlof, Bo Malm, Merja Poikela, John Haugen