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).

  • Patent number: 8785575
    Abstract: 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: Grant
    Filed: April 6, 2007
    Date of Patent: July 22, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Luigi Resconi, Francesca Focante
  • Patent number: 8742042
    Abstract: 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: Grant
    Filed: April 6, 2007
    Date of Patent: June 3, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Francesca Focante, Luigi Resconi
  • Patent number: 7858717
    Abstract: 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: Grant
    Filed: March 5, 2007
    Date of Patent: December 28, 2010
    Assignee: Basell Polyolefine GmbH
    Inventors: Luigi Resconi, Ilya E. Nifant'ev, Pavel V. Ivchenko, Vladimir Bagrov, Francesca Focante, Gilberto Moscardi
  • Patent number: 7834205
    Abstract: 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: Grant
    Filed: April 6, 2007
    Date of Patent: November 16, 2010
    Assignee: Basell Polyolifine GmbH
    Inventors: Luigi Resconi, Francesca Focante, Davide Balboni, Ilya E. Nifant'ev, Pavel V. Ivchenko, Vladimir Bagrov
  • Patent number: 7803887
    Abstract: 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: Grant
    Filed: March 15, 2006
    Date of Patent: September 28, 2010
    Assignee: Basell Polyolefine GmbH
    Inventors: Marco Sacco, Ilya Nifant'ev, Pavel Ivchenko, Vladimir Bagrov, Francesca Focante
  • Publication number: 20090286946
    Abstract: 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: Application
    Filed: June 7, 2006
    Publication date: November 19, 2009
    Applicant: Basell Polyolefine
    Inventors: Luigi Resconi, Eleonora Ciaccia, Francesca Focante
  • Publication number: 20090275712
    Abstract: 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: Application
    Filed: April 6, 2007
    Publication date: November 5, 2009
    Applicant: Basell Polyolefine GmbH
    Inventors: Luigi Resconi, Francesca Focante, Davide Balboni, liya E. Nifant'ev, Pavel V. Ivchenko, Vladimir Bagrov
  • Publication number: 20090221772
    Abstract: 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: Application
    Filed: March 15, 2006
    Publication date: September 3, 2009
    Applicant: Basell Polylefine GmbH
    Inventors: Marco Sacco, Ilya E. Nifant'Ev, Pavel V. Ivchenko, Vladimir Bagrov, Francesca Focante
  • Publication number: 20090198027
    Abstract: 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: Application
    Filed: April 6, 2007
    Publication date: August 6, 2009
    Applicant: Basell Polylolefine GmbH
    Inventors: Luigi Resconi, Francesca Focante
  • Publication number: 20090171047
    Abstract: 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: Application
    Filed: March 5, 2007
    Publication date: July 2, 2009
    Applicant: Basell Polyolefine GmbH
    Inventors: Luigi Resconi, Iiya E. Nifant'Ev, Pavel V. Ivchenko, Vladimir Bagrov, Francesca Focante, Gilberto Moscardi
  • Publication number: 20090156391
    Abstract: 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: Application
    Filed: November 29, 2006
    Publication date: June 18, 2009
    Applicant: Basell Poliolefine Italia s.r.l.
    Inventors: Dario Liguori, Francesca Focante, Giampiero Morini, Luigi Resconi, Gianni Vitale
  • Publication number: 20090118449
    Abstract: 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: Application
    Filed: April 6, 2007
    Publication date: May 7, 2009
    Applicant: Basell Polyolefine GmbH
    Inventors: Francesca Focante, Luigi Resconi
  • Patent number: 7314903
    Abstract: 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 groups
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: January 1, 2008
    Assignee: Basell Polyolefine GmbH
    Inventors: Luigi Resconi, Francesca Focante, Isabella Camurati, Simona Guidotti
  • Publication number: 20060094840
    Abstract: 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: Application
    Filed: July 9, 2003
    Publication date: May 4, 2006
    Applicant: Bassell Pollyolefine GmbH
    Inventors: Luigi Resconi, Francesca Focante, Isabella Camurati, Simona Guidotti