Patents by Inventor Paivi Waldvogel
Paivi Waldvogel 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: 9556295Abstract: Procatalyst comprising an inorganic support, a chlorine compound carried on said support, a magnesium compound carried on said support, a titanium compound carried on said support, and a compound comprising two oxygen containing rings, wherein said two rings are linked via a bridge selected from the group consisting of carbon bridge, silicon bridge, ethane-1.2-diyl bridge, ethene-1,2-diyl bridge, alkylaminomethyl bridge and imine bridge.Type: GrantFiled: April 28, 2014Date of Patent: January 31, 2017Assignee: Borealis AGInventors: Irfan Saeed, Esa Kokko, Paivi Waldvogel, Marja Mustonen, Thomas Garoff
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Publication number: 20160060372Abstract: Procatalyst comprising an inorganic support, a chlorine compound carried on said support, a magnesium compound carried on said support, a titanium compound carried on said support, and a compound comprising two oxygen containing rings, wherein said two rings are linked via a bridge selected from the group consisting of carbon bridge, silicon bridge, ethane-1.2-diyl bridge, ethene-1,2-diyl bridge, alkylaminomethyl bridge and imine bridge.Type: ApplicationFiled: April 28, 2014Publication date: March 3, 2016Inventors: Irfan Saeed, Esa Kokko, Paivi Waldvogel, Marja Mustonen, Thomas Garoff
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Patent number: 8546499Abstract: Ziegler-Natta catalyzed linear low density polyethylene which satisfies the following conditions: a) a density, according to ISO 1183, of from 900 to 925 kg/m3, b) a C4-C10-comonomer content, determined by Fourier transform infrared spectroscopy, of 1 to 16 wt % c) a weight average molecular weight Mw, determined by gel permeation chromatography, of at least 200 000, d) wherein the linear low density polyethylene comprises, by Crystallisation Analysis Fractionation (CRYSTAF) an amorphous fraction soluble at a temperature below 30° C. of at most 10 wt % and a fraction crystallising between 60 to 75° C. of at least 35 wt % and e) by temperature rising elution fractionation (TREF) analysis, at least 70 wt % of a crystallising polymer component having an elution temperature range from 60° C. to 94° C. and less than 10 wt % of a crystallising polymer component having an elution temperature range from 30° C. to 60° C.Type: GrantFiled: April 26, 2010Date of Patent: October 1, 2013Assignee: Borealis AGInventors: Thomas Garroff, Paivi Waldvogel, Kallio Kalle, Virginie Eriksson, Aki Aittola, Esa Kokko
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Patent number: 8409681Abstract: A process is disclosed for producing a multi-modal linear low density polyethylene in at least two staged reactors connected in series, comprising (i) polymerizing in a first slurry phase stage ethylene monomers with a Ziegler-Natta polymerization catalyst system to obtain a first polyethylene fraction component (A); and (ii) polymerizing in a second gas or slurry phase stage ethylene monomers with a Ziegler-Natta polymerization catalyst system to obtain a second polyethylene fraction component (B). The Ziegler-Natta polymerization catalyst system comprises: 1) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate complex of formula (I) b) an aluminum compound of formula (II); and c) a vanadium compound and a titanium compound having a molar ratio (V:Ti) from 10:90 to 90:10; and 2) one or more organometallic cocatalvsts of formula (III). The linear low density polyethylene shows an improved comonomer composition distribution Formulas (I), (II), and (III) are described herein.Type: GrantFiled: February 22, 2010Date of Patent: April 2, 2013Assignee: Borealis AGInventors: Thomas Garoff, Paivi Waldvogel, Kalle Kallio, Virginie Eriksson, Aki Aittola, Esa Kokko
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Publication number: 20120095172Abstract: Ziegler-Natta catalyst composition capable of producing ethylene/alpha-olefins copolymers, particularly linear low density polyethylene; the composition having an improved stability of its behaviour during polymerization in respect to time. The Ziegler-Natta catalyst composition comprises: 1.Type: ApplicationFiled: April 26, 2010Publication date: April 19, 2012Inventors: Thomas Garoff, Paivi Waldvogel, Kalle Kallio, Virginie Eriksson
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Patent number: 8143184Abstract: The invention is directed to a process for producing an olefin polymerization catalyst wherein a solution of a soluble magnesium complex containing an element of is Group 13 or 14 of the Periodic Table (IUPAC) is contacted with a halogen containing transition metal compound of Group 3 to 10 of the Periodic Table (IUPAC) to obtain a solid catalyst complex comprising as essential components Mg, said element of is Group 13 or 14 of the Periodic Table (IUPAC) and said transition metal compound.Type: GrantFiled: June 2, 2005Date of Patent: March 27, 2012Assignee: Borealis Technology OyInventors: Thomas Garoff, Päivi Waldvogel
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Publication number: 20120053308Abstract: Ziegler-Natta catalyzed linear low density polyethylene which satisfies the following conditions: a) a density, according to ISO 1183, of from 900 to 925 kg/m3, b) a C4-C10-comonomer content, determined by Fourier transform infrared spectroscopy, of 1 to 16 wt % c) a weight average molecular weight Mw, determined by gel permeation chromatography, of at least 200 000, d) wherein the linear low density polyethylene comprises, by Crystallisation Analysis Fractionation (CRYSTAF) an amorphous fraction soluble at a temperature below 30° C. of at most 10 wt % and a fraction crystallising between 60 to 75° C. of at least 35 wt % and e) by temperature rising elution fractionation (TREF) analysis, at least 70 wt % of a crystallising polymer component having an elution temperature range from 60° C. to 94° C. and less than 10 wt % of a crystallising polymer component having an elution temperature range from 30° C.Type: ApplicationFiled: April 26, 2010Publication date: March 1, 2012Applicant: BOREALIS AGInventors: Thomas Garroff, Paivi Waldvogel, Kallio Kalle, Virginie Eriksson, Aki Aittola, Esa Kokko
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Publication number: 20110306737Abstract: Multi-stage polymerization process for the production of a multi-modal linear low density polyethylene in at least two staged reactors connected in series comprising at least (i) polymerizing in a first slurry phase stage ethylene monomers and optionally one or more alpha-olefin comonomers, in the presence of a Ziegler-Natta polymerization catalyst system to obtain a first polyethylene fraction component (A) (ii) polymerizing in a second gas or slurry phase stage ethylene monomers and one or more alpha-olefin comonomers, in the presence of a Ziegler-Natta polymerization catalyst system to obtain a second polyethylene fraction component (B), whereby the Ziegler-Natta polymerization catalyst system comprises 1) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate complex of the formula (I): Mg(OR1)2-n(R1)n, wherein each R1 independently represents a C1-C20 hydrocarbyl group and 0?n<2 and may or may not be an integer; b) an aluminium compound of the formula (II) Al(R2)mX3-m, wherein each R2 iType: ApplicationFiled: February 22, 2010Publication date: December 15, 2011Inventors: Thomas Garoff, Päivi Waldvogel, Kalle Kallio, Virginie Eriksson, Aki Aittola, Esa Kokko
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Publication number: 20110263801Abstract: Multi-stage polymerization process for the production of a multi-modal linear low density polyethylene in at least two staged reactors connected in series comprising at least (i) polymerizing in a first slurry phase stage ethylene monomers and optionally one or more alpha-olefin comonomers, in the presence of a Ziegler-Natta polymerization catalyst system to obtain a first polyethylene fraction component (A) (ii) polymerizing in a second gas or slurry phase stage ethylene monomers and one or more alpha-olefine comonomers, in the presence of a Ziegler-Natta polymerization catalyst system to obtain a second polyethylene fraction component (B), whereby the Ziegler-Natta polymerization catalyst system comprises: 1) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate complex of the formula (I): Mg(OR1)2-n(R1)n, wherein each R1 independently represents a C1-C20 hydrocarbyl group and 0<n<2 and may or may not be an integer; b) an aluminium compound of the formula (II) Al(R2)mX3-m, wherein eachType: ApplicationFiled: February 22, 2010Publication date: October 27, 2011Inventors: Thomas Garoff, Päivi Waldvogel, Kalle Kallio, Virginie Eriksson, Aki Aittola, Esa Kokko
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Publication number: 20100130705Abstract: The present invention provides a method for tailoring the molecular weight distribution of a multimodal (e.g. bimodal) ethylene polymer having a lower molecular weight component and a higher molecular weight component comprising polymerising ethylene and optionally at least one further alpha olefin in at least two stages, wherein at least one stage is carried out in a slurry phase in the presence of a Ziegler Natta catalyst comprising an electron donor which is an ether.Type: ApplicationFiled: November 1, 2006Publication date: May 27, 2010Applicant: Borelis Technology OYInventors: Jarmo Lindroos, Mats Backman, Thomas Garoff, Peter Idelmann, Solveig Johansonn, Young Soo Ko, Minna Stalhammar, Paivi Waldvogel
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Patent number: 7608555Abstract: The present invention relates to a process for the production of catalysts, particularly of Ziegler-Natta type of catalysts for olefin polymerisation, to the catalysts as such, and to their use in polymerising olefins.Type: GrantFiled: June 6, 2007Date of Patent: October 27, 2009Assignee: Borealis Technology OyInventors: Thomas Garoff, Kari Pesonen, Päivi Waldvogel, Timo V. Laine, Peter Denifl, Jarmo Lindroos
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Publication number: 20080249263Abstract: The invention is directed to a process for producing an olefin polymerization catalyst wherein a solution of a soluble magnesium complex containing an element of is Group 13 or 14 of the Periodic Table (IUPAC) is contacted with a halogen containing transition metal compound of Group 3 to 10 of the Periodic Table (IUPAC) to obtain a solid catalyst complex comprising as essential components Mg, said element of is Group 13 or 14 of the Periodic Table (IUPAC) and said transition metal compound.Type: ApplicationFiled: June 2, 2005Publication date: October 9, 2008Inventors: Thomas Garoff, Paivi Waldvogel
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Patent number: 7432220Abstract: The invention is directed to a process for producing a particulate support for an olefin polymerisation catalyst wherein a solution of a magnesium compound is contacted with a solution of an element of Group (13 or 14) of the Periodic Table (IUPAC) to obtain a solid reaction product. In the process of the invention the solid reaction product is formed by: i) contacting (a) a solution of a magnesium hydrocarbyloxy compound with (b) a solution of a halogen-containing compound of an element of Group (13 or 14) of the Periodic Table (IUPAC); and ii) recovering the solidified reaction product from the reaction mixture.Type: GrantFiled: December 18, 2002Date of Patent: October 7, 2008Assignee: Borealis Technology OyInventors: Thomas Garoff, Päivi Waldvogel, Kari Pesonen
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Publication number: 20070249489Abstract: The present invention relates to a process for the production of catalysts, particularly of Ziegler-Natta type of catalysts for olefin polymerisation, to the catalysts as such, and to their use in polymerising olefins.Type: ApplicationFiled: June 6, 2007Publication date: October 25, 2007Applicant: Borealis Polymers OyInventors: Thomas Garoff, Kari Pesonen, Paivi Waldvogel, Timo Laine, Peter Denifl, Jarmo Lindroos
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Patent number: 7238637Abstract: The invention provides a process for producing an olefin polymerization catalyst comprising a catalyst component formed by contacting at least (a) a compound of Group 1 to 3 of the Periodic Table (IUPAC) with (b) a transition metal compound of Group 4 to 10 of the Periodic Table (IUPAC) or a compound of an actinide or lanthanide, in the form of solid catalyst particles, said process comprising: (1) preparing a solution from said compounds; (2) dispersing said solution to a solvent immiscible therewith and inert in relation to said compounds, to obtain an emulsion in which said solution forms the dispersed phase; and (3) solidifying the catalyst component in the dispersed droplets.Type: GrantFiled: December 18, 2002Date of Patent: July 3, 2007Assignee: Borealis Technology OyInventors: Thomas Garoff, Kari Pesonen, Päivi Waldvogel, Timo V. Laine, Peter Denifl, Jarmo Lindroos
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Publication number: 20060154805Abstract: The invention is directed to a process for producing a particulate support for an olefin polymerisation catalyst wherein a solution of a magnesium compound is contacted with a solution of an element of Group (13 or 14) of the Periodic Table (IUPAC) to obtain a solid reaction product. In the process of the invention the solid reaction product is formed by: i) contacting (a) a solution of a magnesium hydrocarbyloxy compound with (b) a solution of a halogen-containing compound of an element of Group (13 or 14) of the Periodic Table (IUPAC); and ii) recovering the solidified reaction product from the reaction mixture.Type: ApplicationFiled: December 18, 2002Publication date: July 13, 2006Applicant: Borealis Technology OyInventors: Thomas Garoff, Paivi Waldvogel, Kari Personen
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Publication number: 20060111523Abstract: The present invention relates to a process for the production of catalysts, particularly of Ziegler-Natta type of catalysts for olefin polymerisation, to the catalysts as such, and to their use in polymerising olefins.Type: ApplicationFiled: December 18, 2002Publication date: May 25, 2006Applicant: Borealis Polymers OyInventors: Thomas Garoff, Kari Pesonen, Paivi Waldvogel, Timo Laine, Peter Denifl, Jarmo Lindroos
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Patent number: 6924343Abstract: A process for polymerizing olefins using a high activity catalyst. The catalyst utilize in the present process has a good balance in activity and can be used to carry out ethylene polymerization at high and low melt flow rates to produce low gel or gel free product.Type: GrantFiled: June 14, 2004Date of Patent: August 2, 2005Assignee: Borealis Technology OyInventors: Jarmo Lindroos, Solveig Johansson, Päivi Waldvogel
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Publication number: 20050020785Abstract: A process for polymerizing olefins using a high activity catalyst. The catalyst utilize in the present process has a good balance in activity and can be used to carry out ethylene polymerization at high and low melt flow rates to produce low gel or gel free product.Type: ApplicationFiled: June 14, 2004Publication date: January 27, 2005Applicant: Borealis Technology OyInventors: Jarmo Lindroos, Solveig Johansson, Paivi Waldvogel
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Patent number: 6818584Abstract: Especially homogeneous supported Ziegler-Natta catalysts may be prepared in a simple one reaction vessel process from a magnesium hydrocarbyloxy starting material which is soluble in a hydrocarbon solvent. The process comprises: (I) reacting a magnesium hydrocarbyloxy compound with a chlorine-containing compound in a non-polar hydrocarbon solvent in which said magnesium hydrocarbyloxy compound is soluble whereby to produce a solution (A); and then either: (II) contacting the solution (A) with a chlorine containing tetravalent titanium compound to produce a solution (B); (III) impregnating solution (B) into a porous particulate support; or (II) impregnating solution (A) into a porous particulate support; and (III) contacting the solid support with a chlorine containing tetravalent titanium compound; or (II) impregnating solution (A) into a porous particulate support pretreated with a chlorine containing tetravalent titanium compound.Type: GrantFiled: July 29, 2002Date of Patent: November 16, 2004Assignee: Borealis Technology OYInventors: Thomas Garoff, Solveig Johansson, Paivi Waldvogel