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).

  • Patent number: 9522988
    Abstract: 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: Grant
    Filed: January 5, 2012
    Date of Patent: December 20, 2016
    Assignee: BOREALIS AG
    Inventors: Martin Anker, Svein Jamtvedt
  • Patent number: 9278308
    Abstract: 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: Grant
    Filed: July 5, 2012
    Date of Patent: March 8, 2016
    Assignee: Aker Engineering & Technology AS
    Inventors: Svein Jamtvedt, Harry Øysæd, John Ole Gjerp, Frank Henning Forsberg
  • Patent number: 9139709
    Abstract: 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: Grant
    Filed: August 8, 2008
    Date of Patent: September 22, 2015
    Assignee: Borealis Technology OY
    Inventors: Svein Jamtvedt, Balakantharao Kona
  • Patent number: 8969445
    Abstract: 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: Grant
    Filed: December 17, 2009
    Date of Patent: March 3, 2015
    Assignee: Borealis AG
    Inventors: Martin Anker, Per-Ola Hagstrand, Svein Jamtvedt, Tanja Piel
  • Publication number: 20140302266
    Abstract: 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: Application
    Filed: January 5, 2012
    Publication date: October 9, 2014
    Applicant: BOREALIS AG
    Inventors: Martin Anker, Svein Jamtvedt
  • Publication number: 20140123851
    Abstract: 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: Application
    Filed: July 5, 2012
    Publication date: May 8, 2014
    Applicant: Aker Engineering & Technology AS
    Inventors: Svein Jamtvedt, Harry Øysæd, John Ole Gjerp, Frank Henning Forsberg
  • Publication number: 20140113998
    Abstract: 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: Application
    Filed: June 13, 2012
    Publication date: April 24, 2014
    Applicant: BOREALIS AG
    Inventors: Antti Tynys, Martina Sandholzer, Svein Jamtvedt, Astrid-Caroline Knall, Alexander Standler
  • Patent number: 8652604
    Abstract: 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: Grant
    Filed: September 28, 2007
    Date of Patent: February 18, 2014
    Assignee: Borealis Technology Oy
    Inventors: Martin Anker, Svein Jamtvedt
  • Publication number: 20140037879
    Abstract: 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: Application
    Filed: January 2, 2012
    Publication date: February 6, 2014
    Applicant: BOREALIS AG
    Inventors: Martin Anker, Svein Jamtvedt
  • Patent number: 8501844
    Abstract: 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: Grant
    Filed: July 8, 2008
    Date of Patent: August 6, 2013
    Assignee: Borealis Technology Oy
    Inventors: Martin Anker, Svein Jamtvedt, Jeroen Oderkerk
  • Patent number: 8443846
    Abstract: 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: Grant
    Filed: December 17, 2009
    Date of Patent: May 21, 2013
    Assignee: Borealis AG
    Inventors: Per-Ola Hagstrand, Martin Anker, Tanja Piel, Svein Jamtvedt
  • Publication number: 20120000538
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: January 5, 2012
    Applicant: BOREALIS AG
    Inventors: Per-Ola Hagstrand, Martin Anker, Tanja Piel, Svein Jamtvedt
  • Publication number: 20110257311
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: October 20, 2011
    Applicant: BOREALIS AG
    Inventors: Martin Anker, Per-Ola Hagstrand, Svein Jamtvedt, Tanja Piel
  • Publication number: 20110257312
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: October 20, 2011
    Applicant: BOREALIS AG
    Inventors: Martin Anker, Svein Jamtvedt
  • Publication number: 20110132864
    Abstract: 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: Application
    Filed: August 8, 2008
    Publication date: June 9, 2011
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Svein Jamtvedt, Balakantharao Kona
  • Publication number: 20100266798
    Abstract: 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: Application
    Filed: July 8, 2008
    Publication date: October 21, 2010
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Martin Anker, Svein Jamtvedt, Jeroen Oderkerk
  • Publication number: 20100143631
    Abstract: 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: Application
    Filed: September 28, 2007
    Publication date: June 10, 2010
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Martin Anker, Svein Jamtvedt
  • Patent number: 7399138
    Abstract: 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: Grant
    Filed: May 22, 2001
    Date of Patent: July 15, 2008
    Assignee: Borealis Technology Oy
    Inventors: Carl-Gustaf Ek, Tony Lindström, Cecilia Rydin, Svein Jamtvedt
  • Patent number: 7182987
    Abstract: 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: Grant
    Filed: August 15, 2001
    Date of Patent: February 27, 2007
    Assignee: Borealis Technology Oy
    Inventors: Dirk Matthijs, Svein Jamtvedt, Mika Härkönen, Harry Øysaed
  • Publication number: 20060122295
    Abstract: 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: Application
    Filed: October 8, 2002
    Publication date: June 8, 2006
    Applicant: Borealis Polymers Oy
    Inventors: Harry Oysaed, Svein Jamtvedt, Astrid Frohaug