Patents by Inventor Ville Virkkunen
Ville Virkkunen 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: 11807655Abstract: Claimed are metallocene-complexes of formula (I) [formula (I?)] wherein M is Hf or Zr, L is a bridge comprising 1-2 C- or Si-atoms, The other variables are as defined in the claims.Type: GrantFiled: December 21, 2017Date of Patent: November 7, 2023Assignee: BOREALIS AGInventors: Wilfried Toeltsch, Simon Schwarzenberger, Ismo Lehtiniemi, Luigi Resconi, Ville Virkkunen, Noureddine Ajellal, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
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Patent number: 11702487Abstract: The present invention relates to a process for producing a propylene polymer, such as a propylene homopolymer, a propylene-ethylene random copolymer or a heterophasic propylene copolymer using a specific class of metallocene complexes in combination with a cocatalyst system comprising a boron containing cocatalyst and an aluminoxane cocatalyst, preferably in a multistage polymerization process including a gas phase polymerization step.Type: GrantFiled: May 7, 2019Date of Patent: July 18, 2023Assignee: BOREALIS AGInventors: Noureddine Ajellal, Ville Virkkunen
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Patent number: 11643427Abstract: A complex of formula (I): (I?) M is Hf; each X is a sigma ligand; L is a bridge of formula -(ER82)y—; y is 1 or 2; E is C or Si; each R8 is independently a C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl or L is an alkylene group such as methylene or ethylene; Ar and Ar? are each independently an aryl or heteroaryl group optionally substituted by 1 to 3 groups R1 or R1? respectively; R1 and R1? are each independently the same or can be different and are a linear or branched C1-C6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20 aryl group with the proviso that if there are four or more R1 and R1? groups present in total, one or more of R1 and R1? is other than tert butyl; R2 and R2? are the same or are different and are a CH2—R9 group, with R9 being H or linear or branched C1-C6-alkyl group, C3-8 cycloalkyl group, C6-10 aryl group; each R is a —CH2—, —CHRx- or C(Rx)2- group wherein Rx is C1-4 alkyl and where m is 2-6; R5 is a linear or branched C1-C6-aType: GrantFiled: June 28, 2019Date of Patent: May 9, 2023Assignee: BOREALIS AGInventors: Noureddine Ajellal, Ville Virkkunen, Luigi Maria Cristoforo Resconi, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov, Jingbo Wang, Simon Schwarzenberger, Wilfried Peter Töltsch
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Patent number: 11542346Abstract: New bisindenyl ligand complexes and catalysts comprising those complexes. The invention is directed to improving the manufacturing of specific C1-symmetric bisindenyl complexes by modifying one of the indenyl ligands in order to improve the selectivity of the complex synthesis towards the desired anti-isomer, increase the yield and simplify the purification of the complex. The invention also relates to the use of the new bisindenyl metallocene catalysts for the production of polypropylene homopolymers or propylene copolymers.Type: GrantFiled: March 18, 2019Date of Patent: January 3, 2023Assignee: Borealis AGInventors: Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov, Ville Virkkunen, Luigi Maria Cristoforo Resconi
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Publication number: 20220363703Abstract: Claimed are metallocene-complexes of formula (I) [formula (I?)] wherein M is Hf or Zr, L is a bridge comprising 1-2 C- or Si-atoms, The other variables are as defined in the claims.Type: ApplicationFiled: December 21, 2017Publication date: November 17, 2022Inventors: Wilfried TOELTSCH, Simon SCHWARZENBERGER, Ismo LEHTINIEMI, Luigi RESCONI, Ville VIRKKUNEN, Noureddine AJELLAL, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV
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Publication number: 20220356274Abstract: A metallocene complex of formula (I): each X is a sigma-ligand; in the group R2Si— at least one R is methyl or ethyl, and the other R is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl, pentyl, hexyl, cyclohexyl and phenyl; each R1 independently is the same or can be different and are a CH2—R7 group, with R7 being H or linear or branched C1-6-alkyl group, C3-8 cycloalkyl group, or C6-10 aryl group; each R2 is independently a —CH?, —CY?, —CH2—, —CHY— or —CY2— group, wherein Y is a C1-6 hydrocarbyl group and where n is 2-6; each R3 and R4 are independently the same or can be different and are hydrogen, a linear or branched C1-6-alkyl group, a C7-20 arylalkyl, C7-20 alkylaryl group, C6-20 aryl group, or an —OY group, wherein Y is a is a C1-6 hydrocarbyl group; R5 is a linear or branched C1-6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20-aryl group; and R6 is a C(R8)3 group, with R8 being a linear or branched C1-6 alkyl group; (A) wherein at least one R3 per phenyl group and aType: ApplicationFiled: September 25, 2020Publication date: November 10, 2022Inventors: Luigi Maria Cristoforo RESCONI, Simon SCHWARZENBERGER, Ville VIRKKUNEN, Alexander REZNICHENKO, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV
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Publication number: 20220227800Abstract: Improved preparation process for silica supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved catalyst system.Type: ApplicationFiled: May 20, 2020Publication date: July 21, 2022Inventors: Alexander REZNICHENKO, Ville VIRKKUNEN, Luigi RESCONI
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Publication number: 20220220143Abstract: Improved preparation process for supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved catalyst system.Type: ApplicationFiled: May 20, 2020Publication date: July 14, 2022Inventors: Luigi Maria Cristoforo RESCONI, Alexander REZNICHENKO, Ville VIRKKUNEN
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Publication number: 20220220231Abstract: New, improved silica supported catalyst system, which comprises a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst, its use for producing propylene homopolymers, propylene copolymers, especially with ethylene, as well as heterophasic propylene copolymers, preferably in a multistep process including a gas phase polymerization step.Type: ApplicationFiled: May 20, 2020Publication date: July 14, 2022Inventors: Luigi Maria Cristoforo RESCONI, Wilfried TOELTSCH, Ville VIRKKUNEN, Kalle KALLIO, Soile LUSTIG, Noureddine AJELLAL, Marja MUSTONEN, Alexander REZNICHENKO
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Patent number: 11352376Abstract: A complex of formula (I) wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R?2C—, —R?2C—CR?2—, —R?2Si—, —R?2Si—SiR?2—, —R?2Ge—, wherein each R? is independently a hydrogen atom or a C1-C20-hydrocarbyl .Type: GrantFiled: November 17, 2017Date of Patent: June 7, 2022Assignee: BOREALIS AGInventors: Noureddine Ajellal, Luigi Resconi, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov, Ville Virkkunen
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Publication number: 20210292355Abstract: A complex of formula (I): (I?) M is Hf; each X is a sigma ligand; L is a bridge of formula -(ER82)y—; y is 1 or 2; E is C or Si; each R8 is independently a C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20- aryl, C7-C20-arylalkyl or C7-C20-alkylaryl or L is an alkylene group such as methylene or ethylene; Ar and Ar? are each independently an aryl or heteroaryl group optionally substituted by 1 to 3 groups R1 or R1? respectively; R1 and R1? are each independently the same or can be different and are a linear or branched C1-C6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20 aryl group with the proviso that if there are four or more R1 and R1? groups present in total, one or more of R1 and R1? is other than tert butyl; R2 and R2? are the same or are different and are a CH2—R9 group, with R9 being H or linear or branched C1-C6-alkyl group, C3-8 cycloalkyl group, C6-10 aryl group; each R is a —CH2—, —CHRx- or C(Rx)2-group wherein Rx is C1-4 alkyl and where m is 2-6; R5 is a linear or branched C1-C6-aType: ApplicationFiled: June 28, 2019Publication date: September 23, 2021Inventors: Noureddine AJELLAL, Ville VIRKKUNEN, Luigi Maria Cristoforo RESCONI, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV, Jingbo WANG, Simon SCHWARZENBERGER, Wilfried Peter TÖLTSCH
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Patent number: 11078304Abstract: Process for producing a heterophasic propylene copolymer using a specific class of metallocene complexes in a multistage polymerization process including a gas phase polymerization step. The invention further relates to the use of catalysts which comprise a specific class of metallocene complexes to produce a heterophasic propylene copolymer in a multistep process including a gas phase polymerization step.Type: GrantFiled: June 14, 2018Date of Patent: August 3, 2021Assignee: BOREALIS AGInventors: Luigi Maria Cristoforo Resconi, Wilfried Toltsch, Ville Virkkunen, Ismo Lehtiniemi, Noureddine Ajellal
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Publication number: 20210230319Abstract: The present invention relates to a process for producing a propylene polymer, such as a propylene homopolymer, a propylene-ethylene random copolymer or a heterophasic propylene copolymer using a specific class of metallocene complexes in combination with a cocatalyst system comprising a boron containing cocatalyst and an aluminoxane cocatalyst, preferably in a multistage polymerization process including a gas phase polymerization step.Type: ApplicationFiled: May 7, 2019Publication date: July 29, 2021Inventors: Noureddine Ajellal, Ville Virkkunen
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Publication number: 20210017307Abstract: New bisindenyl ligand complexes and catalysts comprising those complexes. The invention is directed to improving the manufacturing of specific C1-symmetric bisindenyl complexes by modifying one of the indenyl ligands in order to improve the selectivity of the complex synthesis towards the desired anti-isomer, increase the yield and simplify the purification of the complex. The invention also relates to the use of the new bisindenyl metallocene catalysts for the production of polypropylene homopolymers or propylene copolymers.Type: ApplicationFiled: March 18, 2019Publication date: January 21, 2021Inventors: Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV, Ville VIRKKUNEN, Luigi Maria Cristoforo RESCONI
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Publication number: 20200131284Abstract: Process for producing a heterophasic propylene copolymer using a specific class of metallocene complexes in a multistage polymerization process including a gas phase polymerization step. The invention further relates to the use of catalysts which comprise a specific class of metallocene complexes to produce a heterophasic propylene copolymer in a multistep process including a gas phase polymerization step.Type: ApplicationFiled: June 14, 2018Publication date: April 30, 2020Inventors: Luigi Maria Cristoforo Resconi, Wilfried Toltsch, Ville Virkkunen, Ismo Lehtiniemi, Noureddine Ajellal
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Publication number: 20190308995Abstract: A complex of formula (I) wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R?2C—, —R?2C—CR?2—, —R?2Si—, —R?2Si—SiR?2—, —R?2Ge—, wherein each R? is independently a hydrogen atom or a C1-C20-hydrocarbyl group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R? groups taken together can form a ring; R2 and R2? are each independently a C1-C20 hydrocarbyl group, —OC1-hydrocarbyl group or —SC1-20 hydrocarbyl group; R5 is a —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group, said R5 group being optionally substituted by one or more halo groups; R5? is hydrogen or a C1-20 hydrocarbyl group; —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; said C1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R6 and R6? are each independently a C1-20 hydrocarbyl group; —C1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; each R1 and R1? areType: ApplicationFiled: November 17, 2017Publication date: October 10, 2019Inventors: Noureddine AJELLAL, Luigi RESCONI, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV, Ville VIRKKUNEN
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Patent number: 10113021Abstract: Propylene random copolymers with low randomness and being free of from catalyst originating phthalates.Type: GrantFiled: March 27, 2017Date of Patent: October 30, 2018Assignee: Borealis AGInventors: Ville Virkkunen, Torvald Vestberg
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Patent number: 9988323Abstract: A process for the preparation of a compound of formula (V): comprising at least the step of reacting a compound of formula (VI) with a compound (VII) wherein; R2 is hydrogen or a C1-C20 hydrocarbyl radical provided that at least one R2 is not hydrogen; R5 is hydrogen or a C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16; R6 is hydrogen or a C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16; n is 1, 2 or 3; each R8 is a C1-20 hydrocarbyl group; and Hal is a halide; in the presence of a nickel imidazolidin-2-ylidene compound.Type: GrantFiled: February 1, 2017Date of Patent: June 5, 2018Assignee: Borealis AGInventors: Pascal Castro, Ville Virkkunen, Vyatcheslav Izmer, Dmitry Kononovich, Alexander Voskoboynikov, Luigi Resconi
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Publication number: 20170218104Abstract: Propylene random copolymers with low randomness and being free of from catalyst originating phthalates.Type: ApplicationFiled: March 27, 2017Publication date: August 3, 2017Inventors: Ville Virkkunen, Torvald Vestberg
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Publication number: 20170137343Abstract: A process for the preparation of a compound of formula (V): comprising at least the step of reacting a compound of formula (VI) ?with a compound (VII) wherein; R2 is hydrogen or a C1-C20 hydrocarbyl radical provided that at least one R2 is not hydrogen; R5 is hydrogen or a C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16; R6 is hydrogen or a C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16; n is 1, 2 or 3; each R8 is a C1-20 hydrocarbyl group; and Hal is a halide; in the presence of a nickel imidazolidin-2-ylidene compound.Type: ApplicationFiled: February 1, 2017Publication date: May 18, 2017Inventors: Pascal Castro, Ville Virkkunen, Vyatcheslav Izmer, Dmitry Kononovich, Alexander Voskoboynikov, Luigi Resconi