Patents by Inventor Siw Bodil Fredriksen
Siw Bodil Fredriksen 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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Publication number: 20200032009Abstract: A process for the manufacture of a modified poly(alkylene carbonate) comprising compounding i) at least one poly(alkylene carbonate) and at least one modifying agent having at least three carboxylic acid groups, or ii) at least one carboxylic acid group and at least one anhydride group, or iii) at least two anhydride groups, at a temperature of 120 to 240° C.Type: ApplicationFiled: August 1, 2019Publication date: January 30, 2020Inventors: Carlos Barreto Soler, Rodney W. Rychwalski, Siw Bodil Fredriksen
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Patent number: 10370503Abstract: A process for the manufacture of a modified poly(alkylene carbonate) comprising compounding i) at least one poly(alkylene carbonate) and at least one modifying agent having at least three carboxylic acid groups, or ii) at least one carboxylic acid group and at least one anhydride group, or iii) at least two anhydride groups, at a temperature of 120 to 240° C.Type: GrantFiled: January 10, 2014Date of Patent: August 6, 2019Assignee: NORNER IP ASInventors: Carlos Barreto Soler, Rodney W. Rychwalski, Siw Bodil Fredriksen
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Patent number: 9340646Abstract: A process for purifying a poly(alkylene carbonate), said process comprising the steps of adding said poly(alkylene carbonate) to an aqueous solution, optionally in the presence of an acid compound, in the absence of any organic solvent. subsequently heating said blend to a temperature of up to 200° C.; and removing the aqueous phase and drying the residue.Type: GrantFiled: July 11, 2012Date of Patent: May 17, 2016Assignee: NORNER IP ASInventors: Carlos Barreto Soler, Siw Bodil Fredriksen, Espen Ommundsen
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Publication number: 20150361228Abstract: A process for the manufacture of a modified poly(alkylene carbonate) comprising compounding i) at least one poly(alkylene carbonate) and at least one modifying agent having at least three carboxylic acid groups, or ii) at least one carboxylic acid group and at least one anhydride group, or iii) at least two anhydride groups, at a temperature of 120 to 240° C.Type: ApplicationFiled: January 10, 2014Publication date: December 17, 2015Inventors: Carlos Barreto Soler, Rodney W. Rychwalski, Siw Bodil Fredriksen
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Patent number: 8912276Abstract: Coating composition comprising an ethylene copolymer containing not more than 5 mole-% comonomer, whereby the fraction of the ethylene copolymer having a molecular weight of 300 000 g/mol-600 000 g/mol has a methyl branching of more than 4.0 Methyl per 1000 C as determined by SEC/FT-IR analysis.Type: GrantFiled: May 4, 2012Date of Patent: December 16, 2014Assignee: Borealis AGInventors: Tuomas Noopila, Erik Eriksson, Magnus Palmlöf, Jari Hätönen, Michiel Bergstra, Leif Leiden, Martin Anker, Siw Bodil Fredriksen
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Publication number: 20140155573Abstract: A process for purifying a poly(alkylene carbonate), said process comprising the steps of adding said poly(alkylene carbonate) to an aqueous solution, optionally in the presence of an acid compound, in the absence of any organic solvent. subsequently heating said blend to a temperature of up to 200° C.; and removing the aqueous phase and drying the residue.Type: ApplicationFiled: July 11, 2012Publication date: June 5, 2014Applicant: NORNER IP ASInventors: Carlos Barreto Soler, Siw Bodil Fredriksen, Espen Ommundsen
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Publication number: 20140069547Abstract: Coating composition comprising an ethylene copolymer containing not more than 5 mole-% comonomer, whereby the fraction of the ethylene copolymer having a molecular weight of 300 000 g/mol-600 000 g/mol has a methyl branching of more than 4.0 Methyl per 1000 C as determined by SEC/FT-IR analysis.Type: ApplicationFiled: May 4, 2012Publication date: March 13, 2014Applicant: BOREALIS AGInventors: Tuomas Noopila, Erik Eriksson, Magnus Palmlöf, Jari Häönen, Michiel Bergstra, Leif Leiden, Martin Anker, Siw Bodil Fredriksen
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Patent number: 8623482Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m to 955 kg/m3.Type: GrantFiled: December 9, 2008Date of Patent: January 7, 2014Assignee: Borealis Technology OyInventors: Martin Anker, Siw Bodil Fredriksen, Pal Christian Bentzrod, Mats Backman, Leif Leiden, Markku Vahteri, Petri Rekonen
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Patent number: 8461280Abstract: A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m3, and containing at least one ?-olefin comonomer in addition to ethylene comprising: (A) 30 to 60 wt % of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one ?-olefin; and (B) 70 to 40 wt % of a higher molecular weight component being a copolymer of ethylene and at least one ?-olefin, said ?-olefin being the same or different from any ?-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butane alone; wherein the multimodal LLDPE has a dart drop of at least 700 g; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.Type: GrantFiled: December 5, 2008Date of Patent: June 11, 2013Assignee: Borealis Technology OyInventors: Virginie Eriksson, Marjo Vaananen, Markku Vahteri, Thomas Garoff, Petri Rekonen, Jari Hatonen, Siw Bodil Fredriksen, Katrin Nord-Varhaug, Marit Seim, Jorunn Nilsen, Irene Helland
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Patent number: 8445599Abstract: The present inventions relates to a process for producing polyethylene compositions comprising polymerizing polyethylene resins in a cascaded multi-stage reaction in which the reaction steps are performed in at least two slurry phase reactors (A) and (B) and at least one gas phase reactor (C) which are arranged in series in any order wherein in reactor (A) a low molecular weight ethylene homo- or copolymer fraction having a MFR2 of 100 to 2000 g/10 min, in reactor (B) a low molecular weight ethylene homo- or copolymer fraction having an MFR2 of 100 to 2000 g/10 min, and in reactor (C) a high molecular weight ethylene copolymer fraction are polymerized, and further comprising a compounding step after polymerization, wherein the final polyethylene composition has a MFR21 of 3 to 50 g/10 min, the melt flow rates being determined according to ISO 1133.Type: GrantFiled: October 16, 2009Date of Patent: May 21, 2013Assignee: Borealis AGInventors: Bill Gustafsson, Jari Hatonen, Petri Rekonen, Markku Vahteri, Siw Bodil Fredriksen, Arild Follestad, Karl Isak Skau
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Patent number: 8361578Abstract: Coated pipes have a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3.Type: GrantFiled: December 8, 2008Date of Patent: January 29, 2013Assignee: Borealis Technology OYInventors: Mats Backman, Martin Anker, Siw Bodil Fredriksen, Leif Leiden, Markku Vahteri, Petri Rekonen
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Patent number: 8142871Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol and a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 945 kg/m3 to 958 kg/m3. The coatings have a high stiffness, good properties at elevated temperatures and acceptable stress-cracking properties.Type: GrantFiled: December 10, 2008Date of Patent: March 27, 2012Assignee: Borealis Technology OYInventors: Martin Anker, Siw Bodil Fredriksen, Pal Christian Bentzrod, Mats Bäckman, Leif Leiden, Markku Vahteri, Petri Rekonen
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Publication number: 20110288237Abstract: The present inventions relates to a process for producing polyethylene compositions comprising polymerising polyethylene resins in a cascaded multi-stage reaction in which the reaction steps are performed in at least two slurry phase reactors (A) and (B) and at least one gas phase reactor (C) which are arranged in series in any order wherein in reactor (A) a low molecular weight ethylene homo- or copolymer fraction having a MFR2 of 100 to 2000 g/10 min, in reactor (B) a low molecular weight ethylene homo- or copolymer fraction having an MFR2 of 100 to 2000 g/10 min, and in reactor (C) a high molecular weight ethylene copolymer fraction are polymerised, and further comprising a compounding step after polymerisation, wherein the final polyethylene composition has a MFR21 of 3 to 50 g/10 min, the melt flow rates being determined according to ISO 1133, a multimodal polymer composition comprising a polyethylene resin comprising (i) a first low molecular weight ethylene homo- or copolymer fraction having a MFR2Type: ApplicationFiled: October 16, 2009Publication date: November 24, 2011Applicant: BOREALIS AGInventors: Bill Gustafsson, Jari Hatonen, Petri Rekonen, Markku Vahteri, Siw Bodil Fredriksen, Arild Follestad, Karl Isak Skau
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Publication number: 20110120587Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m to 955 kg/m3.Type: ApplicationFiled: December 9, 2008Publication date: May 26, 2011Applicant: BOREALIS TECHNOLOGY OYInventors: Martin Anker, Siw Bodil Fredriksen, Pal Christian Bentzrod, Mats Backman, Leif Leiden, Markku Vahteri, Petri Rekonen
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Patent number: 7947783Abstract: The present invention relates to a polyethylene composition wherein (i) the composition has an MFR2 of 0.05 to 100 g/10 min, (ii) the environmental stress crack resistance ESCR measured in hours according to ASTM 1693, condition B and E-modulus EM measured according to ISO 527-2: 1993 in MPa satisfy the following relation: ESCR>?EM h/MPa+1150 h.Type: GrantFiled: October 6, 2006Date of Patent: May 24, 2011Assignee: Borealis Technology OyInventors: Svein Eggen, Katrin Nord-Varhaug, Siw Bodil Fredriksen
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Publication number: 20110028665Abstract: A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m3, and containing at least one ?-olefin comonomer in addition to ethylene comprising: (A) 30 to 60 wt % of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one ?-olefin; and (B) 70 to 40 wt % of a higher molecular weight component being a copolymer of ethylene and at least one ?-olefin, said ?-olefin being the same or different from any ?-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butane alone; wherein the multimodal LLDPE has a dart drop of at least 700 g; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.Type: ApplicationFiled: December 5, 2008Publication date: February 3, 2011Applicant: BOREALIS TECHNOLOGY OYInventors: Virginie Eriksson, Markku Vahteri, Marjo Vaananen, Thomas Garoff, Jari Hatonen, Petri Rekonen, Siw Bodil Fredriksen, Katrin Nord-Varhaug, Marit Seim, Jorunn Nilsen, Irene Helland
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Publication number: 20100313986Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.Type: ApplicationFiled: December 8, 2008Publication date: December 16, 2010Inventors: Mats Backman, Martin Anker, Siw Bodil Fredriksen, Leif Leiden, Markku Vahteri, Petri Rekonen
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Publication number: 20100279047Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol and a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 945 kg/m3 to 958 kg/m3. The coatings have a high stiffness, good properties at elevated temperatures and acceptable stress-cracking properties.Type: ApplicationFiled: December 10, 2008Publication date: November 4, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Martin Anker, Siw Bodil Fredriksen, Pal Christian Bentzrod, Mats Bäckman, Leif Leiden, Markku Vahteri, Petri Rekonen
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Publication number: 20080224354Abstract: The present invention relates to a polyethylene composition wherein (i) the composition has an MFR2 of 0.05 to 100 g/10 min, (ii) the environmental stress crack resistance ESCR measured in hours according to ASTM 1693, condition B and E-modulus EM measured according to ISO 527-2: 1993 in MPa satisfy the following relation: ESCR>?EM h/MPa+1150 h.Type: ApplicationFiled: October 6, 2006Publication date: September 18, 2008Inventors: Svein Eggen, Katrin Nord-Varhaug, Siw Bodil Fredriksen
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Patent number: 7166682Abstract: A process for the preparation of an olefin polymerisation catalyst comprising: a) reacting an aluminoxane and a Lewis base in an optionally halogenated hydrocarbon solvent to form a particulate suspension; b) reacting said suspension with a metallocene complex in an optionally halogenated hydrocarbon solvent; and optionally c) isolating the olefin polymerisation catalyst.Type: GrantFiled: September 4, 2003Date of Patent: January 23, 2007Assignee: Borealis Technology OyInventors: Jarmo Lindroos, Siw Bodil Fredriksen, Pål Christian Bentzrød