Patents by Inventor Amir Karbasi
Amir Karbasi 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: 20110245445Abstract: The invention is directed to a process for the treatment of plastic material comprising a) providing a liquid; b) contacting the plastic material with the liquid; c) keeping the plastic material in the liquid at Tb?25° C. to Tb of the liquid, wherein Tb is the boiling point of the liquid at the applied pressure; and d) removing the plastic material from the liquid. Furthermore, the invention is directed to the use of a liquid for the treatment of plastic material and to a plant for treating plastic material with a liquid.Type: ApplicationFiled: October 24, 2008Publication date: October 6, 2011Inventors: Amir Karbasi, Esa Korhonen, Ensio Hietanen, Karin H. Knudsen, Kai Hagane, Fred Bergmann, Klaus Nyfors
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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: 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: 6503993Abstract: The present invention concerns nucleated propylene polymers having a xylene soluble fraction at 23° C. of less than 2.5%, a crystallization temperature of over 124 ° C. and a tensile modulus of greater than 2,000 MPa. These polymers can be prepared by nucleating a propylene polymer with a polymeric nucleating agent containing vinyl compound units, and by polymerizing propylene optionally with comonomers in the presence of a Ziegler-Natta catalyst system primarily transesterified with a phthalic acid ester—a lower alcohol pair to provide said propylene polymer. The catalyst contains a strongly coordinating external donor.Type: GrantFiled: June 27, 2000Date of Patent: January 7, 2003Assignee: Borealis Technology OyInventors: Päivi Huovinen, Pirjo J{umlaut over (aa)}skeläinen, Amir Karbasi, Christer Lind, Bo Malm, John Haugen
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Patent number: 6437063Abstract: The present invention concerns a process for producing a propylene polymer nucleated with a polymeric nucleating agent containing vinyl compound units. The method comprises modifying a catalyst by polymerizing a vinyl compound in the presence of said catalyst in a medium, which does not essentially dissolve the polymerized vinyl compound, and by continuing the polymerization of the vinyl compound until the concentration of unreacted vinyl compounds is less than about 0.5 wt-%. The thus obtained modified catalyst composition is used for polymerizing propylene optionally together with comonomers to produce in the presence of said modified catalyst composition. Modification of the catalyst according to the present invention will reduce production costs and provide highly reliable catalyst activity.Type: GrantFiled: June 23, 2000Date of Patent: August 20, 2002Assignee: Borealis Technology OyInventors: Amir Karbasi, Pauli Leskinen, Pirjo J{umlaut over (aa)}skeläinen, Bo Malm, Päivi Pitkänen, Mika Härkönen, John Haugen
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Patent number: 6300420Abstract: The invention relates to a copolymer composition prepared from copolymers of propene and &agr;-olefin having 2 to 12 carbon atoms, having high molecular weight, a broad molecular weight distribution and an improved comonomer distribution. The invention relates also to a process for producing the composition and the use of the composition in pipes, fittings, profiles, films and foams. The composition is a so-called reactor mixture of copolymers of said monomers comprising a first copolymer having a higher molecular weight, an &agr;-olefin content of 3 to 10 wt. % and a melt flow rate MFR2 of 0,005 to 0,8, and a second copolymer having a lower molecular weight, thus the final composition has a comonomer content of 2 to 10 wt. %, a melt flow rate MFR2 of 0,05 to 2,5 wt. %, a melt flow ratio MFR10/MFR2 of 6 to 15, and the split of the copolymers in the composition between the higher molecular weight copolymer and the lower molecular weight copolymer is from 40/60 to 70/30.Type: GrantFiled: May 12, 1997Date of Patent: October 9, 2001Assignee: Borealis A/SInventors: Pirjo J{umlaut over (aa)}skeläinen, Amir Karbasi, Bo Malm, Päivi Pitkänen