Patents by Inventor Solveig Johansson
Solveig Johansson 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: 11410788Abstract: The invention relates to power cable polymer composition which comprises a single site polyethylene (SSPE), a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable.Type: GrantFiled: December 18, 2015Date of Patent: August 9, 2022Assignee: BOREALIS AGInventors: Villgot Englund, Per-Ola Hagstrand, Solveig Johansson, Virginie Eriksson
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Publication number: 20180108450Abstract: The invention relates to power cable polymer composition which comprises a single site polyethylene (SSPE), a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable.Type: ApplicationFiled: December 18, 2015Publication date: April 19, 2018Inventors: Villgot ENGLUND, Per-Ola HAGSTRAND, Solveig JOHANSSON, Virginie ERIKSSON
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Patent number: 9353283Abstract: The present invention relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an MFR21, measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min. The present invention further relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an impact strength at ?40° C. of at least 80 kJ/m2 in a Charpy notched test according to ISO ISO 179-1/1eA:2000 with a pendulum energy of 15 J. The invention is furthermore directed to the use of the composition for the coating of an article.Type: GrantFiled: November 25, 2009Date of Patent: May 31, 2016Assignee: BOREALIS AGInventors: Björn Voigt, Martin Anker, Magnus Palmlöf, Solveig Johansson
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Patent number: 9017784Abstract: The present invention relates to a pipe made of a polyethylene composition comprising a polyethylene base resin, which comprises c. an ethylene copolymer as fraction (A), and d. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerization process in which a single-site catalyst (SSC) is used in the polymerization of at least one of fractions (A) and (B), the base resin having (i) a density of below 940 kg/m3, and (ii) a MFR5 at 190° C./5.00 kg of at least 0.20 g/10 min, and the polyethylene composition having a time to failure of at least 250 h measured according to ISO 1167 at 95° C. and 4.3 MPa.Type: GrantFiled: November 21, 2007Date of Patent: April 28, 2015Assignee: Borealis Technology OyInventors: Magnus Palmlöf, Solveig Johansson, Markku Vähteri
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Patent number: 8859066Abstract: A coating composition, a process for producing it and substrate coated therewith are described. The composition comprises a multimodal ethylene polymer, which contains from 80 to 99.8% by weight of ethylene repeating units and from 0.2 to 20% by weight of C3-C20 ?-olefin repeating units, and is a blend of at least a first and a second ethylene polymer prepared by polymerization in the presence of a single site catalyst system. The blend has a density of 0.915-0.955 g/cm3, a melt flow rate, MFR2, of 0.028-1.5 g/10 min., a molecular weight distribution, Mw/Mn, of 3-10, and a CTL 5.0 MPa-value according to ISO 6259 of at least 500 hrs.Type: GrantFiled: January 28, 2004Date of Patent: October 14, 2014Assignee: Borealis Technology OyInventors: Solveig Johansson, Christer Lind, Cecilia Rydin
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Patent number: 8450426Abstract: The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises a. an ethylene copolymer as fraction (A), and b. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst. (SSC) is used in the polymerisation of at least one of fractions (A) and (B), and the base resin has (i) a density of below 940 kg/m3, and (ii) a MFR2 at 190 ° C./2.16 kg of 0.001 to 10 g/10 min, and the composition has (iii) a flexural modulus of from 300 to 820 MPa, and to a process for the production of such a composition, and to a pipe produced from such a composition.Type: GrantFiled: November 21, 2007Date of Patent: May 28, 2013Assignee: Borealis Technology OyInventors: Magnus Palmlöf, Solveig Johansson, Per-Ola Hagstrand, Sune Olsson
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Publication number: 20110250374Abstract: The present invention relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an MFR21, measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min. The present invention further relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an impact strength at ?40° C. of at least 80 kJ/m2 in a Charpy notched test according to ISO ISO 179-1/1eA:2000 with a pendulum energy of 15 J. The invention is furthermore directed to the use of the composition for the coating of an article.Type: ApplicationFiled: November 25, 2009Publication date: October 13, 2011Applicant: BOREALIS AGInventors: Bjöm Voigt, Martin Anker, Magnus Palmlöf, Solveig Johansson
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Publication number: 20110111152Abstract: The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises a. an ethylene copolymer as fraction (A), and b. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst. (SSC) is used in the polymerisation of at least one of fractions (A) and (B), and the base resin has (i) a density of below 940 kg/m3, and (ii) a MFR2 at 190 ° C./2.16 kg of 0.001 to 10 g/10 min, and the composition has (iii) a flexural modulus of from 300 to 820 MPa, and to a process for the production of such a composition, and to a pipe produced from such a composition.Type: ApplicationFiled: November 21, 2007Publication date: May 12, 2011Applicant: BOREALIS TECHNOLOGY OYInventors: Magnus Palmlöf, Solveig Johansson, Per-ola Hagstrand, Sune Olsson
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Publication number: 20100075087Abstract: The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises a. an ethylene copolymer as fraction (A), and b. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst. (SSC) is used in the polymerisation of at least one of fractions (A) and (B), and the base resin has (i) a density of below 940 kg/m3, and (ii) a MFR2 at 190 ° C./2.16 kg of 0.001 to 10 g/10 min, and the composition has (iii) a flexural modulus of from 300 to 820 MPa, and to a process for the production of such a composition, and to a pipe produced from such a composition.Type: ApplicationFiled: November 21, 2007Publication date: March 25, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Magnus Palmlöf, Solveig Johansson, Per-ola Hagstrand, Sune Olsson
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Publication number: 20100055366Abstract: The present invention relates to a pipe made of a polyethylene composition comprising a polyethylene base resin, which comprises c. an ethylene copolymer as fraction (A), and d. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst (SSC) is used in the polymerisation of at least one of fractions (A) and (B), the base resin having (i) a density of below 940 kg/m, and (ii) a MFR5 at 190° C./5.00 kg of at least 0.20 g/10 min, and the polyethylene composition having a time to failure of at least 250 h measured according to ISO 1167 at 95° C. and 4.3 MPa.Type: ApplicationFiled: November 21, 2007Publication date: March 4, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Magnus Palmlöf, Solveig Johansson, Markku Vähteri
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Publication number: 20070273066Abstract: The present invention relates to a multimodal linear low density polyethylene composition for the preparation of a pressure pipe. The invention further relates to a pressure pipe, comprising said composition, a process for the manufacturing of a pipe made of the composition and to a process for the recycling of pipe material consisting of the composition according to the invention. Furthermore the invention relates to the use of the pressure pipe as an irrigation pipe, especially a drip irrigation pipe.Type: ApplicationFiled: March 3, 2005Publication date: November 29, 2007Applicant: BOREALIS TECHNOLOGY OYInventors: Solveig Johansson, Sune Olsson, Hakan Larsson, Markhu Vahteri
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Publication number: 20070003724Abstract: A coating composition, a process for producing it and substrate coated therewith are described. The composition comprises a multimodal ethylene polymer, which contains from 80 to 99.8% by weight of ethylene repeating units and from 0.2 to 20% by weight of C3-C20 ?-olefin repeating units, and is a blend of at least a first and a second ethylene polymer that are obtainable by a process comprising at least two steps in which: said first ethylene polymer is prepared by polymerising ethylene and optional comonomer(s) in the presence of a single site catalyst system; and said second ethylene polymer is prepared by polymerising ethylene and optional comonomer(s) in the presence of a single site catalyst system; said steps being performed in any order and the ethylene polymer of each step being present in the following step(s), and producing a blend of from 20 to 80% by weight of said first and from 80 to 20% by weight of said second ethylene polymer, said blend having a density of 0.915-0.Type: ApplicationFiled: January 28, 2004Publication date: January 4, 2007Applicant: BOREALIS TECHNOLOGY OYInventors: Solveig Johansson, Christer Lind, Cecilia Rydin
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Publication number: 20060241256Abstract: The use in the manufacture of a polyethylene article of a polyethylene composition comprising 20 to 50% wt of a copolymer of ethylene and a C3-20 alpha olefin comonomer and 50 to 80% wt. Of a lower weight average molecular weight ethylene polymer, the polyethylenes of the composition together having a density of 935 to 965 kg/m3, weight average molecular weight of 60000 to 300000 g/mol, an MFR2.16 at 190° C. of 0.1 to 10 g/10 min., and a molecular weight distribution (MWD) of from 2.5 to 20, the copolymer having a comonomer content of from 0.006 to 9 mol % and a degree of branching of 0.03 to 45 branches per 1000 carbons, and the ethylene polymer having a density of 939 to 975 kg/m3 and a weight average molecular weight of 20000 to 200000 g/mol.Type: ApplicationFiled: November 26, 2003Publication date: October 26, 2006Applicant: BOREALIS TECHNOLOGY OYInventors: Hege Baann, Svein Eggen, Hans Eklind, Irene Helland, Solveig Johansson, Bernt-Ake Sultan, Anneli Malmberg, Katrin Nord-Varhaug, Philipp Walter
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Patent number: 6924343Abstract: A process for polymerizing olefins using a high activity catalyst. The catalyst utilize in the present process has a good balance in activity and can be used to carry out ethylene polymerization at high and low melt flow rates to produce low gel or gel free product.Type: GrantFiled: June 14, 2004Date of Patent: August 2, 2005Assignee: Borealis Technology OyInventors: Jarmo Lindroos, Solveig Johansson, Päivi Waldvogel
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Publication number: 20050020785Abstract: A process for polymerizing olefins using a high activity catalyst. The catalyst utilize in the present process has a good balance in activity and can be used to carry out ethylene polymerization at high and low melt flow rates to produce low gel or gel free product.Type: ApplicationFiled: June 14, 2004Publication date: January 27, 2005Applicant: Borealis Technology OyInventors: Jarmo Lindroos, Solveig Johansson, Paivi Waldvogel
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Patent number: 6818584Abstract: Especially homogeneous supported Ziegler-Natta catalysts may be prepared in a simple one reaction vessel process from a magnesium hydrocarbyloxy starting material which is soluble in a hydrocarbon solvent. The process comprises: (I) reacting a magnesium hydrocarbyloxy compound with a chlorine-containing compound in a non-polar hydrocarbon solvent in which said magnesium hydrocarbyloxy compound is soluble whereby to produce a solution (A); and then either: (II) contacting the solution (A) with a chlorine containing tetravalent titanium compound to produce a solution (B); (III) impregnating solution (B) into a porous particulate support; or (II) impregnating solution (A) into a porous particulate support; and (III) contacting the solid support with a chlorine containing tetravalent titanium compound; or (II) impregnating solution (A) into a porous particulate support pretreated with a chlorine containing tetravalent titanium compound.Type: GrantFiled: July 29, 2002Date of Patent: November 16, 2004Assignee: Borealis Technology OYInventors: Thomas Garoff, Solveig Johansson, Paivi Waldvogel
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Publication number: 20030208010Abstract: A catalyst having high activity independent of the hydrogen concentration and low gel productivity in the polymerization of ethylene has been prepared.Type: ApplicationFiled: April 24, 2003Publication date: November 6, 2003Applicant: Borealis Polymers OyInventors: Jarmo Lindroos, Solveig Johansson, Paivi Waldvogel
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Patent number: 6620758Abstract: A catalyst having high activity independent of the hydrogen concentration and low gel productivity in the polymerization of ethylene has been prepared.Type: GrantFiled: April 6, 1999Date of Patent: September 16, 2003Assignee: Borealis Technology OyInventors: Jarmo Lindroos, Solveig Johansson, Päivi Waldvogel
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Patent number: 6562905Abstract: The present invention concerns a bimodal film-making HDPE composition, a process for the preparation thereof, a film prepared thereof and a film-making process. The composition comprises at least one polyethylene component having a relatively low molecular weight and another polyethylene component having a relatively high molecular weight. The composition has a shear thinning index defined by the relationship: SHI5/300≦0.00014 &eegr;5kPa+78 wherein &eegr;5kPa is the complex viscosity at G*=5 Pa and SHI5/300 is the ratio of complex viscosity at G*=5 kPa to the complex viscosity at G*=300 kPa. By means of the invention it is possible to produce material for making HDPE blown films with good mechanical properties in a process where the whole range of PE products from LLD to HD can be produced.Type: GrantFiled: November 9, 2000Date of Patent: May 13, 2003Assignee: Borealis Technology OyInventors: Auli Nummila-Pakarinen, Ole Jan Myhre, Jarmo Lindroos, Solveig Johansson
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Publication number: 20030008769Abstract: Especially homogeneous supported Ziegler-Natta catalysts may be prepared in a simple one reaction vessel process from a magnesium hydrocarbyloxy starting material which is soluble in a hydrocarbon solvent. The process comprises: (I) reacting a magnesium hydrocarbyloxy compound with a chlorine-containing compound in a non-polar hydrocarbon solvent in which said magnesium hydrocarbyloxy compound is soluble whereby to produce a solution (A); and then either: (II) contacting the solution (A) with a chlorine containing tetravalent titanium compound to produce a solution (B); (III) impregnating solution (B) into a porous particulate support; or (II) impregnating solution (A) into a porous particulate support; and (III) contacting the solid support with a chlorine containing tetravalent titanium compound; or (II) impregnating solution (A) into a porous particulate support pretreated with a chlorine containing tetravalent titanium compound.Type: ApplicationFiled: July 29, 2002Publication date: January 9, 2003Inventors: Thomas Garoff, Solveig Johansson, Paivi Waldvogel