Patents by Inventor Ali Harlin
Ali Harlin 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: 7365136Abstract: The present invention concerns a high melt strength propylene polymer or copolymer suitable for manufacturing foams and thermoformed product exhibiting a melt strength of at least 3 g and comprising a high molar mass portion and a low or medium molar mass portion. The polymers are produced by subjecting propylene and optionally other olefins to polymerization in a plurality of polymerization reactors connected in series, employing different amounts of hydrogen as a molar mass modifier in at least two of the reactors, and carrying out the polymerization reaction in the presence of a catalyst system capable of catalyzing the formation of a high molar mass polymerization product having a MFR2 of less than 0.1 g/10 min and a low or medium molar mass polymerization product having a MFR2 of more than 0.5 g/10 min.Type: GrantFiled: March 8, 2005Date of Patent: April 29, 2008Assignee: Borealis Technology OyInventors: Paivi Huovinen, Ali Harlin, Pirjo Jaaskelainen, Amir Karbasi, Nina Manner
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Publication number: 20070292663Abstract: The invention relates to a flexible and porous fabric structure comprising a support structure (1) and a coating material for use in a paper machine. The coating material (2) is arranged solely on the surface of the support structure (1) at a predefined location(s) so that the coating material (2) does not substantially alter the permeability properties of the support structure (1). The invention also relates to a method for manufacturing a fabric structure.Type: ApplicationFiled: September 12, 2005Publication date: December 20, 2007Applicant: Tamfelt OyjabpInventors: Hannu Martikainen, Pekka Kortelainen, Tania Rautio, Mari Seppanen, Ali Harlin, Tuula Wilenius-Jaakonaho
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Publication number: 20060193994Abstract: The invention relates to a method for priming a substrate by contacting the substrate with a primer fed from a primer source and depositing the primer on the substrate. Compared to other priming methods, the claimed priming gives better results because the deposition is carried out electrostatically.Type: ApplicationFiled: June 14, 2005Publication date: August 31, 2006Inventors: Tapani Penttinen, Kimmo Nevalainen, Isto Heiskanen, Kaj Backfolk, Minna Peltola, Ali Harlin
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Publication number: 20050159564Abstract: The present invention concerns a high melt strength propylene polymer or copolymer suitable for manufacturing foams and thermoformed product exhibiting a melt strength of at least 3 g and comprising a high molar mass portion and a low or medium molar mass portion. The polymers are produced by subjecting propylene and optionally other olefins to polymerization in a plurality of polymerization reactors connected in series, employing different amounts of hydrogen as a molar mass modifier in at least two of the reactors, and carrying out the polymerization reaction in the presence of a catalyst system capable of catalyzing the formation of a high molar mass polymerization product having a MFR2 of less than 0.1 g/10 min and a low or medium molar mass polymerization product having a MFR2 of more than 0.5 g/10 min.Type: ApplicationFiled: March 8, 2005Publication date: July 21, 2005Applicant: Borealis Technology OYInventors: Paivi Huovinen, Ali Harlin, Pirjo Jaaskelainen, Amir Karbasi, Nina Manner
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Patent number: 6875826Abstract: The present invention concerns a high melt strength propylene polymer or copolymer suitable for manufacturing foams and thermoformed product exhibiting a melt strength of at least 3 g and comprising a high molar mass portion and a low or medium molar mass portion. The polymers are produced by subjecting propylene and optionally other olefins to polymerization in a plurality of polymerization reactors connected in series, employing different amounts of hydrogen as a molar mass modifier in at least two of the reactors, and carrying out the polymerization reaction in the presence of a catalyst system capable of catalyzing the formation of a high molar mass polymerization product having a MFR2 of less than 0.1 g/l0 min and a low or medium molar mass polymerization product having a MFR2 of more than 0.5 g/10 min.Type: GrantFiled: September 28, 1998Date of Patent: April 5, 2005Assignee: Borealis A/SInventors: Päivi Huovinen, Ali Harlin, Pirjo Jääskeläinen, Amir Karbasi, Nina Manner
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Patent number: 6827568Abstract: An arrangement in connection with clamping tools, which comprises a nozzle structure which consists of coaxially arranged nozzle elements and is arranged to form one or more layers which cover a flexible elongated element on the surface of the flexible elongated element, which passes through the innermost nozzle element, in which arrangement at least the head of the nozzle element, which controls the flexible elongated element, is a separate unit which is arranged to be pushed into its position in the direction of the flexible elongated element and provided with gripping means, which grip the innermost nozzle element of the nozzle structure as the unit arrives at the nozzle element. The joint between the separate unit and the nozzle element of the nozzle structure is arranged to be loosened by repulsive force acting on the separate unit in the direction of the flexible elongated element and the separate unit is arranged to exit from the nozzle structure in the direction of the flexible elongated element.Type: GrantFiled: November 29, 2002Date of Patent: December 7, 2004Assignee: Maillefer S.A.Inventors: Ali Harlin, Jyrki Pennala, Pekka Huotari
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Publication number: 20030143296Abstract: An arrangement in connection with clamping tools, which comprises a nozzle structure which consists of coaxially arranged nozzle elements and is arranged to form one or more layers which cover a flexible elongated element on the surface of the flexible elongated element, which passes through the innermost nozzle element, in which arrangement at least the head of the nozzle element, which controls the flexible elongated element, is a separate unit which is arranged to be pushed into its position in the direction of the flexible elongated element and provided with gripping means, which grip the innermost nozzle element of the nozzle structure as the unit arrives at the nozzle element. The joint between the separate unit and the nozzle element of the nozzle structure is arranged to be loosened by repulsive force acting on the separate unit in the direction of the flexible elongated element and the separate unit is arranged to exit from the nozzle structure in the direction of the flexible elongated element.Type: ApplicationFiled: November 29, 2002Publication date: July 31, 2003Inventors: Ali Harlin, Jyrki Pennala, Pekka Huotari
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Patent number: 6562914Abstract: A process for homo or copolymerizing propylene, wherein propylene is polymerized in the presence of a catalyst at an elevated temperature in a reaction medium in which a major part of the reaction medium is propylene and the polymerization is carried in at least one CSTR or loop reactor, where the polymerization is carried out at a temperature and a pressure which are above the corresponding critical temperature and the pressure of the reaction medium and were the residence time is at least 15 minutes. The process can also have a subcritical loop polymerization before the supercritical stage polymerization or gas phase polymerization after the supercritical stage polymerization.Type: GrantFiled: April 27, 2000Date of Patent: May 13, 2003Assignee: Borealis A/SInventors: Henrik Andtsjö, Ismo Pentti, Ali Harlin
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Publication number: 20020183412Abstract: The invention relates to a process of crosslinking a polymer material with silane by means of heat, in which process a polymer, a grafting agent, an initiator and a crosslinking catalyst and optional additives are fed into an extruder and extruded to a homogenous mass by keeping the process temperature so low that the initiator used does not degrade during the extrusion and the optional additives do not react or degrade in the extruder, and, after the extrusion, the extruded mass is grafted and crosslinked. After the extrusion, the process of the invention comprises a step of heating the initiator, mixed homogenously with the polymer material, by means of infared radiation in a wavelength range absorbed by the initiator.Type: ApplicationFiled: April 29, 2002Publication date: December 5, 2002Applicant: MAILLEFER S.A..Inventors: Ali Harlin, Matti Sistola
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Patent number: 6476161Abstract: The present invention concerns a method and an apparatus of introducing polymer slurry obtained from a slurry reactor into a gas phase reactor containing a fluidized bed (C, D). According to the present invention, the content of the slurry reactor (R1) is conducted directly to the fluidized bed reactor (R2) as a multiphase stream comprising polymer, active catalyst and reaction medium using at least one feed line (10; 11; 12), and the stream is fed below a first fluidized zone (C) of the gas phase reactor via inlet pipe protruding into the fluidized bed in order to increase the once-through conversion of the process. By means of the invention, the amount of unreacted monomers which needs to be recirculated is minimized and investment and operation costs of the recovery section are greatly reduced.Type: GrantFiled: July 17, 2000Date of Patent: November 5, 2002Assignee: Borealis Technology OyInventors: Ali Harlin, Jouni Kivelä, Esa Korhonen, Henrik Andtsjö
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Patent number: 6469110Abstract: Described herein is a process and an apparatus for polymerizing propylene. The process comprises carrying out the polymerization in at least one slurry reactor and at least one gas phase reactor without recycling unreacted monomers to the slurry reactor. A polymerization product containing unreacted monomers is recovered from the slurry reactor and volatile components are separated from the product in a separation unit. The polymerization product is recovered from the separation unit and conducted to a first gas phase reactor; and at least a part of the volatile components a recovered from the separation unit and conducted them to a gas phase reactor. At least 10% of the polymer product is produced in the gas phase reactor(s). The invention provides propylene homopolymers and alloys of propylene homopolymers and copolymers having good impact and creep properties.Type: GrantFiled: February 14, 2000Date of Patent: October 22, 2002Assignee: Borealis Technology OyInventors: Ali Harlin, Kauno Alastalo, Jouni Kivelä, Esa Korhonen
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Patent number: 6455643Abstract: Described herein is a process and an apparatus for preparing propylene homopolymers and copolymers, which comprises polymerizing propylene optionally with comonomers in the presence of a catalyst at elevated temperature and pressure in at least one slurry reactor and at least one gas phase reactor, the polymerization product of at least one slurry reactor, containing unreacted monomers, being conducted to a first gas phase reactor essentially without recycling of the unreacted monomers to the slurry reactor. The invention provides for fast start-ups because the gas phase bed material is available directly from the loop reactor.Type: GrantFiled: June 24, 1998Date of Patent: September 24, 2002Assignee: Borealis Technology OyInventors: Ali Harlin, Kauno Alastalo, Esa Korhonen, Jouni Kivelä
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Patent number: 6339136Abstract: A process for homo or copolymerizing propylene, wherein propylene is polymerized in the presence of a catalyst at an elevated temperature in a reaction medium, in which a major part is formed by propylene. The polymerization is carried in at least one slurry reactor in the presence of liquid propylene at a temperature between 80° C. and the critical temperature of the reaction medium and a catalyst system producing within said temperature range a high productivity and essentially constant isotacticity within wide melt index range.Type: GrantFiled: July 13, 1999Date of Patent: January 15, 2002Assignee: Borealis A/SInventors: Sirpa Ala Huikku, Thomas Garoff, Timo Leinonen, Ali Harlin, Fred Bergmann
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Patent number: 6090893Abstract: The invention relates to polyethylene compositions containing 85-99.5 weight % of component A, which is a linear (co)polymer of ethylene having a bimodal weight distribution, and 0.5-15 weight % of component B having a unimodal molecular weight distribution. Component A is 40-60% by weight of a low molecular weight component (A1) having a weight average molecular weight between 5,000 and 50,000 g/mol, and a molecular weight distribution Mw/Mn between 2.5 and 9 and 60-40% by weight of a high molecular weight component (A2) having a weight average molecular weight between 300,000 and 900,000 g/mol, and a molecular weight distribution M/w/Mn between 4.5 and 12. Component B is a linear ethylene polymer having a molecular weight between 150,000-600,O00 g/mol and an average molecular weight which is higher than the average molecular weight of component (A1) but lower than the average molecular weight of component (A2) and a density controlled within the range of 910-960 kg/m.sup.3.Type: GrantFiled: June 16, 1997Date of Patent: July 18, 2000Assignee: Borealis Polymers OyInventors: Ali Harlin, Aimo Sahila, Veli Kilpelainen, Anders Nymark
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Patent number: 6084041Abstract: A process for homo or copolymerizing propylene, wherein propylene is polymerized in the presence of a catalyst at an elevated temperature in a reaction medium in which a major part of the reaction medium is propylene and the polymerization is carried in at least one CSTR or loop reactor, where the polymerization is carried out at a temperature and a pressure which are above the corresponding critical temperature and the pressure of the reaction medium and where the residence time is at least 15 minutes. The process can also comprise a supercritical loop polymerization before the supercritical stage polymerization or a gas phase polymerization after the supercritical stage polymerization.Type: GrantFiled: May 17, 1996Date of Patent: July 4, 2000Assignee: Borealis A/SInventors: Henrik Andtsjo, Ismo Pentti, Ali Harlin
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Patent number: 5684097Abstract: A process for producing polyethylene compositions in the presence of a catalytic system of ethylene polymerizing catalyst and cocatalyst in a multistage continuous reaction sequence consisting of successive liquid phase and gas phase polymerizations is disclosed. In the first step of the process, ethylene and optionally hydrogen and comonomer are polymerized in a first loop reactor in a low boiling hydrocarbon medium in the presence of ethylene polymerizing catalyst and cocatalyst. The reaction mixture is then removed and then transferred to a second loop reactor where polymerization is continued by addiing ethylene, hydrogen and optionally inert hydrocarbon, comonomers and cocatalysts. Thereafter, the reaction mixture is removed from the second loop reactor along with an essential part of the reaction medium and transferred to a gas phase reactor where polymerizing is continued in the presence of added ethylene and optionally hydrogen, comonomers and cocatalysts to form an end product.Type: GrantFiled: June 7, 1995Date of Patent: November 4, 1997Assignee: Borealis Polymers OYInventors: Ari Palmroos, Ali Harlin, Antero Ahvenainen, Jouni Takakarhu, Aimo Sahila
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Patent number: 5494965Abstract: A process for manufacturing bimodal olefin polymers and copolymers having a ratio between low molecular weight fractions within the range of 40:60-70:30, by mixing under shear conditions 5-50 percent by weight of a low molecular weight unimodal polyolefin having a molecular weight (Mw) between 15,000-30,000, and 95-50 percent by weight of a bimodal polyolefin having a ratio between low molecular weight fractions and high molecular weight fractions within the range of 30:70-55:45. According to a preferred embodiment, there is used a multi-phase process including a loop reactor followed by a gas-phase reactor, wherein a part of the product coming out from the loop reactor is separated and combined with the bimodal product coming out from the gas-phase reactor.Type: GrantFiled: March 24, 1994Date of Patent: February 27, 1996Assignee: Borealis Polymers OyInventors: Ali Harlin, Ulf Palmqvist