Patents by Inventor Arja Lehtinen
Arja Lehtinen 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: 20240108667Abstract: This invention relates to the use of bacterial strains for breaking down protein and increasing amino acid and peptide availability, wherein said bacterial strains are of the species Bifidobacterium animalis subsp. lactis, Lacticaseibacillus paracasei, Lactococcus lactis, Lactobacillus acidophilus, Lactiplantibacillus plantarum and/or Lacticaseibacillus rhamnosus or a mixture thereof.Type: ApplicationFiled: December 13, 2021Publication date: April 4, 2024Inventors: Maija Emilia Marttinen, Markku Saarinen, Arja Laitila, Paivi Nurminen, Markus Lehtinen, Mehreen Anjum
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Publication number: 20240108668Abstract: This invention relates to the use of bacterial strains for improving protein digestion and/or increasing amino acid bioavailability in a subject, wherein said bacterial strains are of the species Bifidobacterium animalis subsp. lactis, Lacticaseibacillus paracasei, Lactococcus lactis, Lactobacillus acidophilus, Lactiplantibacillus plantarum and/or Lacticaseibacillus rhamnosus or a mixture thereof.Type: ApplicationFiled: December 13, 2021Publication date: April 4, 2024Inventors: Maija Emilia Marttinen, Markku Saarinen, Arja Laitila, Paivi Nurminen, Markus Lehtinen, Mehreen Anjum
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Publication number: 20080139749Abstract: A multimodal copolymer of ethylene comprising at least (i) a lower molecular weight fraction of a copolymer of ethylene and at least one alpha-olefin comonomer and (ii) a higher molecular weight fraction of a copolymer of ethylene and at least one alpha-olefin comonomer, wherein said copolymer has a density below 920 kg/m3.Type: ApplicationFiled: December 22, 2005Publication date: June 12, 2008Applicant: Borealis Technology OyInventors: Arja Lehtinen, Merete Skar, Jarmo Lindroos, Janne Maaranen, Markku Vahteri, Hans Eklind, Holger Poehler, Alexander Krajete
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Publication number: 20070161739Abstract: Use of talc as a nucleating agent for linear low density polyethylene formed from ethylene and at least one C4-10 alpha-olefin comonomer, said polyethylene having a density below 940 g/cm3.Type: ApplicationFiled: April 25, 2005Publication date: July 12, 2007Applicant: Borealis Technology OYInventors: Irene Helland, Jorunn Nilsen, Ole Myhre, Auli Nummila-Pakarinen, Arja Lehtinen
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Publication number: 20060177675Abstract: An extrusion coated substrate having a coating comprising a polyethylene produced by polymerization catalysed by a single site catalyst and comprising as comonomers to ethylene at least two C4-12 alpha olefins.Type: ApplicationFiled: June 29, 2004Publication date: August 10, 2006Inventors: Arja Lehtinen, Auli Numilla-Pakarinen, Philipp Walter, Martii Vahala
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Patent number: 7048882Abstract: This invention concerns a process for coating a substrate, and an extrusion coating structure. According to the present process, the coating is provided by producing a bimodal polyethylene composition by subjecting ethylene, optionally with hydrogen and/or comonomers to polymerization or copolymerization reactions in a multistage polymerization sequence of successive polymerization stages. The polymerization reactions are carried out in the presence of a single site catalyst capable of forming a composition which comprises a low molecular weight component with an MFR2 of 20 g/10 min or more and a density higher than the density of the composition, and a high molecular weight component, said composition having a melt flow rate MFR2 of 5 g/10 min or more and a density of 915–960 kg/m3. The composition is extruded on the substrate as such or by adding 10 wt-% or less, calculated from the total weight of the coating, of high pressure PE-LD by blending into the extrusion composition or by coextrusion.Type: GrantFiled: February 19, 2001Date of Patent: May 23, 2006Assignee: Borealis Technology OyInventors: Martti Vähälä, Hannu Salminen, Arja Lehtinen
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Patent number: 7018710Abstract: A process for the preparation of a heat sealable film comprising a core layer and a sealing layer, said process comprising attaching said core layer to said sealing layer, said sealing layer comprising an ethylene copolymer composition in which: (1) there are two distinct maxima in the TREF fractogram of the ethylene copolymer composition; (2) at lest 10%, of the ethylene copolymer composition elutes in TREF at a temperature of less than 50° C.; (3) at least 25%, of the ethylene copolymer composition elutes in TREF at a temperature of higher than 75° C.; (4) none of the ethylene copolymer composition elutes in TREF at a temperature of higher than 100° C.Type: GrantFiled: June 29, 2001Date of Patent: March 28, 2006Assignee: Borealis Technology OyInventors: Kalle Kallio, Jari Äärilä , Merete Skar, Arja Lehtinen
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Patent number: 6797886Abstract: An insulating composition for an electric power cable, and an electric power cable that includes a conductor surrounded by an inner semiconducting layer, an insulating layer, and an outer semiconducting layer, where the insulating layer consists of said insulating composition. The insulating composition is characterized in that the ethylene polymer is a multimodal ethylene copolymer obtained by coordination catalyzed polymerization of ethylene and at least one other alpha-olefin in at least one stage, said multimodal ethylene copolymer having a density of 0.890-0.940 g/cm3, a MFR2 of 0.1-10 g/10 min, a MWD of 3.5-8, a melting temperature of at most 125° C., and a comonomer distribution as measured by TREF, such that the fraction of copolymer eluted at a temperature higher than 90° C. does not exceed 10% by weight, and the multimodal ethylene copolymer includes an ethylene copolymer fraction selected from (a) a low molecular weight ethylene copolymer having a density of 0.900-0.Type: GrantFiled: March 28, 2002Date of Patent: September 28, 2004Assignee: Borealis Technology OyInventors: Bill Gustafsson, Annika Smedberg, Jari Aarila, Arja Lehtinen
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Patent number: 6632884Abstract: This invention concerns process for producing polyethylene compositions, films prepared thereof and process for the preparation of the films. The process comprises subjecting ethylene, optionally hydrogen and comonomers to polymerization or copolymerization reactions in a multistage polymerization. At least one polymerization stage is conducted essentially in the absence of hydrogen. The polymerization reactions are carried out in the presence of a single-site catalyst capable of forming a composition comprising a low molecular weight component with MFR2 of at least 10 g/10 min and a density higher than the density of the composition and a high molecular weight component. The melt flow rate of the composition is in the range MFR2=0.1-5.0 g/10 min and the density of the composition is 915-960 kg/m3. The invention makes it possible to produce polyethylene compositions for manufacturing films with a good balance between optical and mechanical properties.Type: GrantFiled: October 1, 2001Date of Patent: October 14, 2003Assignee: Borealis Technology OyInventors: Merete Skar, Ole Jan Myhre, Arja Lehtinen, Harri Hokkanen, Hilkka Knuuttila, Kalle Kallio, Esa Kinnunen, Eija Lappi
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Publication number: 20030171501Abstract: A process for the preparation of a heat sealable film comprising a core layer and a sealing layer, said process comprising attaching said core layer to said sealing layer, said sealing layer comprising an ethylene copolymer composition in which: (1) there are two distinct maxima in the TREF fractogram of the ethylene copolymer composition; (2) at lest 10%, of the ethylene copolymer composition elutes in TREF at a temperature of less than 50° C.; (3) at least 25%, of the ethylene copolymer composition elutes in TREF at a temperature of higher than 75° C.; (4) none of the ethylene copolymer composition elutes in TREF at a temperature of higher than 100° C.Type: ApplicationFiled: May 7, 2003Publication date: September 11, 2003Inventors: Kalle Kallio, Jari Aarila, Merete Skar, Arja Lehtinen
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Publication number: 20030042658Abstract: This invention concerns a process for coating a substrate, and an extrusion coatig structure. According to the present process, the coating is provided by producing a bimodal polyethylene composition by subjecting ethylene, optionally with hydrogen and/or comonomers to polymerization or copolymerization reactions in a multistage polymerization sequence of successive polymerization stages. The polymerization reactions are carried out in the presence of a single site catalyst capable of forming a composition which comprises a low molecular weight component with an MFR2 of 20 g/10 min or more and a density higher than the density of the composition, and a high molecular weight component, said composition having a melt flow rate MFR2 of 5 g/10 min or more and a density of 915-960 kg/m3. The composition is extruded on the substrate as such or by adding 10 wt-% or less, calculated from the total weight of the coating, of high pressure PE-LD by blending into the extrusion composition or by coextrusion.Type: ApplicationFiled: September 30, 2002Publication date: March 6, 2003Inventors: Martti Vahala, Hannu Salminen, Arja Lehtinen
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Patent number: 6441096Abstract: A multimodal polymer composition for pipes is disclosed as well as a pipes made thereof. The polymer is a multimodal polyethylene with a density of 0.930-0.965 g/cm3, and a viscosity at a shear stress of 747 Pa (&eegr;747 Pa) of at least 650 Pa.s, said multimodal polyethylene comprising a low molecular weight (LMW) ethylene homopolymer fraction and a high molecular weight (HMW) ethylene copolymer fraction, said HMW fraction having a weight ratio of the LMW fraction to the HMW fraction of (35-55):(65-45). Preferably, the multimodal polyethylene has a viscosity at a shear stress of 2.7 kPa (&eegr;2.7 kPa) of 260-450 kPa.s; and a shear thinning index (SHI) defined as the ratio of the viscosities at shear stresses of 2.7 and 210 kPa, respectively, of SHI27/210=50-150, and a storage modulus (G′) at a loss modulus (G″) of 5 kPa, of G′5 kPa≧3000 Pa. The pipe is made of the multimodal polymer composition and withstands a stress of 8.0 MPa gauge during 50 years at 20° C. (MRS8.0).Type: GrantFiled: April 10, 2001Date of Patent: August 27, 2002Assignee: Borealis Technology OyInventors: Mats Bäckman, Eeva-Leena Heino, Solveig Johansson, Jussi Laurell, Arja Lehtinen, Jarmo Lindroos, Marja Ora, Elisabeth Ribarits, Teija Sihvonen, Jari {umlaut over (Aa)}rilä
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Publication number: 20020045711Abstract: A multimodal polymer composition for pipes is disclosed as well as a pipes made thereof. The polymer is a multimodal polyethylene with a density of 0.930-0.965 g/cm3, and a viscosity at a shear stress of 747 Pa (&eegr;747Pa) of at least 650 Pa.s, said multimodal polyethylene comprising a low molecular weight (LMW) ethylene homopolymer fraction and a high molecular weight (HMW) ethylene copolymer fraction, said HMW fraction having a weight ratio of the LMW fraction to the HMW fraction of (35-55):(65-45). Preferably, the multimodal polyethylene has a viscosity at a shear stress of 2.7 kPa (&eegr;2.7 kPa ) of 260-450 kPa.s; and a shear thinning index (SHI) defined as the ratio of the viscosities at shear stresses of 2.7 and 210 kPa, respectively, of SHI2 7/210=50-150, and a storage modulus (G′) at a loss modulus (G″) of 5 kPa, of G′5 kPa≧3000 Pa. The pipe is made of the multimodal polymer composition and withstands a stress of 8.0 MPa gauge during 50 years at 20° C. (MRS8.0).Type: ApplicationFiled: April 10, 2001Publication date: April 18, 2002Inventors: Mats Backman, Eeva-Leena Heino, Solveig Johansson, Jussi Laurell, Arja Lehtinen, Jarmo Lindroos, Marja Ora, Elisabeth Ribarits, Teija Sihvonen, Jari Aarila