Patents by Inventor Francesca Focante
Francesca Focante 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: 8785575Abstract: A polymerization process comprising contacting under polymerization conditions ethylene and at least propylene to obtain a copolymer containing from 96% by mol to 71% by mol of ethylene derived units, in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I), b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1-R4, L, M and W are described in the text.Type: GrantFiled: April 6, 2007Date of Patent: July 22, 2014Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Francesca Focante
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Patent number: 8742042Abstract: A polymerization process comprising contacting under polymerization conditions ethylene and at least one alpha olefin of formula CH2=CHA wherein A is a C2-C20 alkyl radical to obtain a copolymer containing from 95% by mol to 50% by mol of ethylene derived units in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I) b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1-R4, L, M and W are described in the text.Type: GrantFiled: April 6, 2007Date of Patent: June 3, 2014Assignee: Basell Polyolefine GmbHInventors: Francesca Focante, Luigi Resconi
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Patent number: 7858717Abstract: A bridged metallocene compound of formula (I) wherein: M is an atom of a transition metal selected from those belonging to group 3, 4, or to the lanthanide or actinide groups in the Periodic Table of the Elements; X, equal to or different from each other, is a hydrogen atom, a halogen atom, a R, OR, OSO2CF3, OCOR, SR, NR2 or PR2 group; L is a divalent bridging group; R1 and R2, equal to each other, are C1-C40 hydrocarbon radical; R3 is hydrogen or a are C1-C40 hydrocarbon radical and W is an aromatic 5 or 6 membered ring.Type: GrantFiled: March 5, 2007Date of Patent: December 28, 2010Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Ilya E. Nifant'ev, Pavel V. Ivchenko, Vladimir Bagrov, Francesca Focante, Gilberto Moscardi
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Patent number: 7834205Abstract: A bridged metallocene compound of formula (I) wherein: M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing heteroatoms; L is a divalent bridging group; R1 is a linear C1-C40 hydrocarbon radical optionally containing heteroatoms; T1 and T4 are a oxygen, sulfur atom or a C(R18)3 group; wherein R18, are hydrogen atoms or a C1-C40 hydrocarbon radical; T3 and T4 are C1-C40 hydrocarbon radicals; R4 is a hydrogen atom or a C1-C40 hydrocarbon radical; W is an aromatic 5 or 6 membered ring.Type: GrantFiled: April 6, 2007Date of Patent: November 16, 2010Assignee: Basell Polyolifine GmbHInventors: Luigi Resconi, Francesca Focante, Davide Balboni, Ilya E. Nifant'ev, Pavel V. Ivchenko, Vladimir Bagrov
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Patent number: 7803887Abstract: A bridged metallocene compound of formula (I) wherein: M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing hetematoms; L is a divalent bridging group; R1 is a linear C1C40 hydrocarbon radical optionally containing hetexoatonis; T1, T2, T3 and T4 are an oxygen or sulfur atom or a C(R18)2 group with the proviso that at least one group between T1 and T2 is an oxygen or a sulfur atom; wherein R18, are hydrogen atoms or a C1-C4O hydrocarbon radical; n is 1, 2 or 3; R4 is a hydrogen atom or a C1-C40 hydro carbon radical; W is an aromatic 5 or 6 membered ring.Type: GrantFiled: March 15, 2006Date of Patent: September 28, 2010Assignee: Basell Polyolefine GmbHInventors: Marco Sacco, Ilya Nifant'ev, Pavel Ivchenko, Vladimir Bagrov, Francesca Focante
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Publication number: 20090286946Abstract: A solution polymerization process comprising contacting under polymerization conditions propylene and at least ethylene or an alpha olefin of formula CH2?CHT wherein T is a C2-C20 alkyl radical, in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I) b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1R4, L, M and W are described in the text.Type: ApplicationFiled: June 7, 2006Publication date: November 19, 2009Applicant: Basell PolyolefineInventors: Luigi Resconi, Eleonora Ciaccia, Francesca Focante
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Publication number: 20090275712Abstract: A bridged metallocene compound of formula (I) wherein: M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing heteroatoms; L is a divalent bridging group; R1 is a linear C1-C40 hydrocarbon radical optionally containing heteroatoms; T1 and T4 are a oxygen, sulfur atom or a C(R18)3 group; wherein R18, are hydrogen atoms or a C1-C40 hydrocarbon radical; T3 and T4 are C1-C40 hydrocarbon radicals; R4 is a hydrogen atom or a C1-C40 hydrocarbon radical; W is an aromatic 5 or 6 membered ring.Type: ApplicationFiled: April 6, 2007Publication date: November 5, 2009Applicant: Basell Polyolefine GmbHInventors: Luigi Resconi, Francesca Focante, Davide Balboni, liya E. Nifant'ev, Pavel V. Ivchenko, Vladimir Bagrov
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Publication number: 20090221772Abstract: A bridged metallocene compound of formula (I) wherein: M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing hetematoms; L is a divalent bridging group; R1 is a linear C1C40 hydrocarbon radical optionally containing hetexoatonis; T1, T2, T3 and T4 are an oxygen or sulfur atom or a C(R18)2 group with the proviso that at least one group between T1 and T2 is an oxygen or a sulfur atom; wherein R18, are hydrogen atoms or a C1-C40 hydrocarbon radical; n is 1, 2 or 3; R4 is a hydrogen atom or a C1-C40 hydro carbon radical; W is an aromatic 5 or 6 membered ring.Type: ApplicationFiled: March 15, 2006Publication date: September 3, 2009Applicant: Basell Polylefine GmbHInventors: Marco Sacco, Ilya E. Nifant'Ev, Pavel V. Ivchenko, Vladimir Bagrov, Francesca Focante
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Publication number: 20090198027Abstract: A polymerization process comprising contacting under polymerization conditions ethylene and at least propylene to obtain a copolymer containing from 96% by mol to 71% by mol of ethylene derived units, in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I), b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1-R4, L, M and W are described in the text.Type: ApplicationFiled: April 6, 2007Publication date: August 6, 2009Applicant: Basell Polylolefine GmbHInventors: Luigi Resconi, Francesca Focante
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Publication number: 20090171047Abstract: A bridged metallocene compound of formula (I) wherein: M is an atom of a transition metal selected from those belonging to group 3, 4, or to the lanthanide or actinide groups in the Periodic Table of the Elements; X, equal to or different from each other, is a hydrogen atom, a halogen atom, a R, OR, OSO2CF3, OCOR, SR, NR2 or PR2 group; L is a divalent bridging group; R1 and R2, equal to each other, are C1-C40 hydrocarbon radical; R3 is hydrogen or a are C1-C40 hydrocarbon radical and W is an aromatic 5 or 6 membered ring.Type: ApplicationFiled: March 5, 2007Publication date: July 2, 2009Applicant: Basell Polyolefine GmbHInventors: Luigi Resconi, Iiya E. Nifant'Ev, Pavel V. Ivchenko, Vladimir Bagrov, Francesca Focante, Gilberto Moscardi
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Publication number: 20090156391Abstract: A catalyst component for the polymerization of olefins CH2?CHR, wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms. In particular, the present invention relates to catalyst components comprising Mg, Ti, halogen and a compound selected from phosphorous derivatives, boron derivatives and aromatic heterocyclic nitrogen derivatives. Said catalyst components are particularly suitable for the preparation of homo and copolymers of ethylene with ?-olefins.Type: ApplicationFiled: November 29, 2006Publication date: June 18, 2009Applicant: Basell Poliolefine Italia s.r.l.Inventors: Dario Liguori, Francesca Focante, Giampiero Morini, Luigi Resconi, Gianni Vitale
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Publication number: 20090118449Abstract: A polymerization process comprising contacting under polymerization conditions ethylene and at least one alpha olefin of formula CH2=CHA wherein A is a C2-C20 alkyl radical to obtain a copolymer containing from 95% by mol to 50% by mol of ethylene derived units in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I) b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1-R4, L, M and W are described in the text.Type: ApplicationFiled: April 6, 2007Publication date: May 7, 2009Applicant: Basell Polyolefine GmbHInventors: Francesca Focante, Luigi Resconi
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Patent number: 7314903Abstract: An organometallic compound obtainable by contacting: a compound having the following formula (I), wherein: Ra is a hydrocarbon radical; Rb, Rc and Rd, are hydrogen atoms, halogen atoms, or hydrocarbon radicals; with a Lewis acid of formula (II) MtR13 (II) wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements; R1 are selected from the group consisting of halogen atoms, halogenated C6–C20 aryl and halogenated C7–C20 alkylaryl groupsType: GrantFiled: July 9, 2003Date of Patent: January 1, 2008Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Francesca Focante, Isabella Camurati, Simona Guidotti
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Publication number: 20060094840Abstract: An organometallic compound obtainable by contacting a compound having the following formula (I), wherein: Ra is a hydrocarbon radical; Rb, Rc and Rd, are hydrogen atoms, halogen atoms, or hydrocarbon radicals; with a Lewis acid of formula (11) MtR13 (II) wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements; R1 are selected from the group consisting of halogen atoms, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups.Type: ApplicationFiled: July 9, 2003Publication date: May 4, 2006Applicant: Bassell Pollyolefine GmbHInventors: Luigi Resconi, Francesca Focante, Isabella Camurati, Simona Guidotti