Patents by Inventor Svein Jamtvedt
Svein Jamtvedt 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: 9522988Abstract: A polyolefin pipe having a polyolefin base resin (A) including a lower molecular weight fraction and a higher molecular weight fraction, stabilized with at least one stabilizer (B) having a formula: and at least one stabilizer (C) having a formula: wherein the substituents are as described in the specification. The composition demonstrates acceptable stability and low migration of additional additives from the pipe.Type: GrantFiled: January 5, 2012Date of Patent: December 20, 2016Assignee: BOREALIS AGInventors: Martin Anker, Svein Jamtvedt
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Patent number: 9278308Abstract: A construction element for a plant for capture of an acidic gas using an aqueous amine absorbent, wherein at least a part of a surface of said element comprises a polyolefin, and a hydrolytically stable antioxidant, is described. Additionally, a liner comprising said polyolefin and the hydrolytically stable antioxidant, is described. The construction element may be a column, a pipe, an insert, like a column packing element or a tray. An apparatus for capturing CO2 using the construction elements, is also described.Type: GrantFiled: July 5, 2012Date of Patent: March 8, 2016Assignee: Aker Engineering & Technology ASInventors: Svein Jamtvedt, Harry Øysæd, John Ole Gjerp, Frank Henning Forsberg
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Patent number: 9139709Abstract: The present invention provides a cap or closure comprising a polypropylene composition, wherein said composition comprises: (i) a random propylene ethylene copolymer having an ethylene content of 3.3-7% wt, and (ii) an additive selected from an antistatic agent, an antioxidant, an acid scavenger and a nucleating agent.Type: GrantFiled: August 8, 2008Date of Patent: September 22, 2015Assignee: Borealis Technology OYInventors: Svein Jamtvedt, Balakantharao Kona
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Patent number: 8969445Abstract: The present invention relates to a polyolefin composition with good resistance to degradation caused by chlorine dioxide-containing water and at the same time showing low migration of the used additives and its decomposition products, especially phenols, out of the composition. The present invention is also directed to a pipe made of such a polyolefin composition. The present invention further relates to the use of the polyolefin composition for the production of a pipe and to the use of a combination of particular types of antioxidants for increasing the resistance of a polyolefin composition against degradation caused by contact with chlorine dioxide-containing water and for maintaining at the same time a low migration of the used additives and its decomposition products, especially phenols, out of the polyolefin composition.Type: GrantFiled: December 17, 2009Date of Patent: March 3, 2015Assignee: Borealis AGInventors: Martin Anker, Per-Ola Hagstrand, Svein Jamtvedt, Tanja Piel
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Publication number: 20140302266Abstract: The present invention relates to a pipe comprising a polyolefin composition with low migration of the used additives and its decomposition products, especially phenolics, out of the composition, at the same time showing good pressure testing performance.Type: ApplicationFiled: January 5, 2012Publication date: October 9, 2014Applicant: BOREALIS AGInventors: Martin Anker, Svein Jamtvedt
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Publication number: 20140123851Abstract: A construction element for a plant for capture of an acidic gas using an aqueous amine absorbent, wherein at least a part of a surface of said element comprises a polyolefin, and a hydrolytically stable antioxidant, is described. Additionally, a liner comprising said polyolefin and the hydrolytically stable antioxidant, is described. The construction element may be a column, a pipe, an insert, like a column packing element or a tray. An apparatus for capturing CO2 using the construction elements, is also described.Type: ApplicationFiled: July 5, 2012Publication date: May 8, 2014Applicant: Aker Engineering & Technology ASInventors: Svein Jamtvedt, Harry Øysæd, John Ole Gjerp, Frank Henning Forsberg
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Publication number: 20140113998Abstract: The present invention relates to the use of a combination of additives comprising at least two of the following compounds: an antioxidant (A) according to formula (I): wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, an antioxidant (B) according to formula (II): wherein o R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups; o X1, X2, and X3 independently are H or OH, with the provisio that at least one of X1, X2 and X3 is OH; and o the entire molecule does not comprise an ester group; carbon black; reducing taste and/or odour in a polyolefin composition.Type: ApplicationFiled: June 13, 2012Publication date: April 24, 2014Applicant: BOREALIS AGInventors: Antti Tynys, Martina Sandholzer, Svein Jamtvedt, Astrid-Caroline Knall, Alexander Standler
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Patent number: 8652604Abstract: The present invention relates to a composition comprising: a) a polyolefin (A); b) a compound (B) according to formula (I), wherein R and R? each is the same or different residue and comprising at least 6 C-atoms; c) a phenolic compound (C), having the formula (II) wherein R is an non-substituted or substituted aliphatic or aromatic hydrocarbyl radical which may comprise heteroatoms, or R is an heteroatom; X is H, OH, and/or R?; whereby R? is a hydrocarbyl radical or hydrogen, and n is 1 to 4; and d) optionally, an UV-light stabilizer (D), wherein for the composition the total amount of migrated compounds (B), (C) and, if present, (D), as well as their decomposition products is equal to or less than 1.8 microgram per liter with a ratio S/V dm?1 of 11.70 to 12.30, to the use of said composition for the production of a pipe and to a pipe comprising said composition.Type: GrantFiled: September 28, 2007Date of Patent: February 18, 2014Assignee: Borealis Technology OyInventors: Martin Anker, Svein Jamtvedt
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Publication number: 20140037879Abstract: The present invention relates to a pipe comprising a polyolefin composition with low migration of the used additives and its decomposition products, especially phenolics, out of the composition, at the same time showing good pressure testing performance.Type: ApplicationFiled: January 2, 2012Publication date: February 6, 2014Applicant: BOREALIS AGInventors: Martin Anker, Svein Jamtvedt
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Patent number: 8501844Abstract: The present invention relates to a polyolefin composition comprising (a) a polyolefin (A), (b) a vitamin E-type stabilizer (B) according to formula (I), wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, and (c) a phenolic stabilizer (C) according to formula (II), wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups; and X1, X2, and X3 independently are H or OH, with the provisio that at least one of X1, X2 and X3 is OH, and (d) optionally, an UV stabilizer, to an article comprising such a polyolefin composition and to the use of such a composition for the production of an article.Type: GrantFiled: July 8, 2008Date of Patent: August 6, 2013Assignee: Borealis Technology OyInventors: Martin Anker, Svein Jamtvedt, Jeroen Oderkerk
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Patent number: 8443846Abstract: The present invention relates to a polyolefin composition with increased resistance to degradation caused by ClO2-containing water and to a pipe made of such a polyolefin composition. The present invention further relates to the use of the polyolefin composition for the production of a pipe and to the use of a combination of particular types of antioxidants for increasing the resistance of the polyolefin composition against degradation caused by contact with ClO2-containing water.Type: GrantFiled: December 17, 2009Date of Patent: May 21, 2013Assignee: Borealis AGInventors: Per-Ola Hagstrand, Martin Anker, Tanja Piel, Svein Jamtvedt
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Publication number: 20120000538Abstract: The present invention relates to a polyolefin composition with increased resistance to degradation caused by ClO2-containing water and to a pipe made of such a polyolefin composition. The present invention further relates to the use of the polyolefin composition for the production of a pipe and to the use of a combination of particular types of antioxidants for increasing the resistance of the polyolefin composition against degradation caused by contact with ClO2-containing water.Type: ApplicationFiled: December 17, 2009Publication date: January 5, 2012Applicant: BOREALIS AGInventors: Per-Ola Hagstrand, Martin Anker, Tanja Piel, Svein Jamtvedt
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Publication number: 20110257311Abstract: The present invention relates to a polyolefin composition with good resistance to degradation caused by chlorine dioxide-containing water and at the same time showing low migration of the used additives and its decomposition products, especially phenols, out of the composition. The present invention is also directed to a pipe made of such a polyolefin composition. The present invention further relates to the use of the polyolefin composition for the production of a pipe and to the use of a combination of particular types of antioxidants for increasing the resistance of a polyolefin composition against degradation caused by contact with chlorine dioxide-containing water and for maintaining at the same time a low migration of the used additives and its decomposition products, especially phenols, out of the polyolefin composition.Type: ApplicationFiled: December 17, 2009Publication date: October 20, 2011Applicant: BOREALIS AGInventors: Martin Anker, Per-Ola Hagstrand, Svein Jamtvedt, Tanja Piel
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Publication number: 20110257312Abstract: The present invention relates to the use of compound (A) and compound (B) in a polyolefin composition for increasing the lifetime of a pipe made of said polyolefin composition which pipe is in permanent contact with chlorinated water, wherein compound (A) has the following formula (I): wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups, —X1, X2, and X3 independently are H or OH, with the proviso that at least one of X X1, X2, and X3 is OH, and—the entire molecule does not comprise an ester group, wherein compound (B) has the following formula (II): wherein R and R? each is the same or different residue and comprising at least 6 carbon atoms.Type: ApplicationFiled: December 17, 2009Publication date: October 20, 2011Applicant: BOREALIS AGInventors: Martin Anker, Svein Jamtvedt
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Publication number: 20110132864Abstract: The present invention provides a cap or closure comprising a polypropylene composition, wherein said composition comprises: (i) a random propylene ethylene copolymer having an ethylene content of 3.3-7% wt, and (ii) an additive selected from an antistatic agent, an antioxidant, an acid scavenger and a nucleating agent.Type: ApplicationFiled: August 8, 2008Publication date: June 9, 2011Applicant: BOREALIS TECHNOLOGY OYInventors: Svein Jamtvedt, Balakantharao Kona
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Publication number: 20100266798Abstract: The present invention relates to a polyolefin composition comprising (a) a polyolefin (A), (b) a vitamin E-type stabiliser (B) according to formula (I), wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, and (c) a phenolic stabilizer (C) according to formula (II), wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups; and X1, X2, and X3 independently are H or OH, with the provisio that at least one of X1, X2 and X3 is OH, and (d) optionally, an UV stabilizer, to an article comprising such a polyolefin composition and to the use of such a composition for the production of an article.Type: ApplicationFiled: July 8, 2008Publication date: October 21, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Martin Anker, Svein Jamtvedt, Jeroen Oderkerk
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Publication number: 20100143631Abstract: The present invention relates to a composition comprising: a) a polyolefin (A); b) a compound (B) according to formula (I), wherein R and R? each is the same or different residue and comprising at least 6 C-atoms; c) a phenolic compound (C), having the formula (II) wherein R is an non-substituted or substituted aliphatic or aromatic hydrocarbyl radical which may comprise heteroatoms, or R is an heteroatom; X is H, OH, and/or R?; whereby R? is a hydrocarbyl radical or hydrogen, and n is 1 to 4; and d) optionally, an UV-light stabilizer (D), wherein for the composition the total amount of migrated compounds (B), (C) and, if present, (D), as well as their decomposition products is equal to or less than 1.8 microgram per liter with a ratio S/V dm?1 of 11.70 to 12.30, to the use of said composition for the production of a pipe and to a pipe comprising said composition.Type: ApplicationFiled: September 28, 2007Publication date: June 10, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Martin Anker, Svein Jamtvedt
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Patent number: 7399138Abstract: A road restraint system part is made of polyolefin material having an energy absorption of at least 10 kJ/m2 at +23° C. and at least 5 kJ/m2 at ?20° C. (determined according to ISO 179/1eA with notched specimens).Type: GrantFiled: May 22, 2001Date of Patent: July 15, 2008Assignee: Borealis Technology OyInventors: Carl-Gustaf Ek, Tony Lindström, Cecilia Rydin, Svein Jamtvedt
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Patent number: 7182987Abstract: The invention provides a syringe barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax. The invention further provides a syringe having a barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax and a polypropylene composition suitable for such moulding.Type: GrantFiled: August 15, 2001Date of Patent: February 27, 2007Assignee: Borealis Technology OyInventors: Dirk Matthijs, Svein Jamtvedt, Mika Härkönen, Harry Øysaed
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Publication number: 20060122295Abstract: The present invention relates to an antioxidant composition comprising (a) 0.01-0.5% by weight of sterically hindered phenolic compound, (b) 0.01-0.5% by weight of phosphorous compound, and (c) 0.01-1% by weight of sulphurcontaining compound. Said antioxidant composition reduces degradation of plastic materials during processing and end-use and thus, increases the long term thermal stability of those plastic materials. Moreover, this invention relates to methods for producing a final polymeric article with an increased long term thermal stability and stabilization against ageing by radical decomposition processes and polymeric intermediate materials as well as polymeric articles comprising the inventive antioxidant composition.Type: ApplicationFiled: October 8, 2002Publication date: June 8, 2006Applicant: Borealis Polymers OyInventors: Harry Oysaed, Svein Jamtvedt, Astrid Frohaug