Patents by Inventor Yuri Gulevich
Yuri Gulevich 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: 20110152480Abstract: A solid catalyst component for polymerizing at least one olefin comprising Mg, Ti, at least one halogen, and at least one electron donor selected from arylsulfonates and arylsulfonyl derivatives of a specified formula The solid catalyst component is able to give in high yields polyolefins with high stereoregularity.Type: ApplicationFiled: September 3, 2009Publication date: June 23, 2011Applicant: BASELL POLIOLEFINE ITALIA S.R.L.Inventors: Yuri Gulevich, Fabrizio Piemontesi, Benedetta Gaddi, Simona Guidotti, Ilya E. Nifant'ev, Andrey Lyubimtsev
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Patent number: 7674741Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from y-butyrolactone derivatives of a particular formula. Said catalyst components, when used in the polymerization of olefins and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: GrantFiled: May 27, 2005Date of Patent: March 9, 2010Assignee: Basell Poliolefine Italia s.r.l.Inventors: Yuri Gulevich, Giulio Balbontin, Remco Kelder, Giampiero Morini, Jan Dirk Van Loon
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Patent number: 7544748Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from ?-keto-ester derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: GrantFiled: March 8, 2005Date of Patent: June 9, 2009Assignee: Basell Poliolefine Italia S.r.l.Inventors: Yuri Gulevich, Giulio Balbontin, Giampiero Morini, Ilya Nifant'ev
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Publication number: 20090118446Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from ?-butyrolactone derivatives of a particular formula. Said catalyst components, when used in the polymerization of olefins and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: ApplicationFiled: May 27, 2005Publication date: May 7, 2009Applicant: Basell Poliolefine Italia s.r.l.Inventors: Yuri Gulevich, Giulio Balbontin, Remco Kelder, Giampiero Morini, Jan Dirk Van Loon
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Patent number: 7371802Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from thiophene dicarboxylate derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: GrantFiled: October 13, 2004Date of Patent: May 13, 2008Assignee: Basell Poliolefine Italia s.r.l.Inventors: Yuri Gulevich, Giampiero Morini, Maria Fusto
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Publication number: 20070282147Abstract: Lewis base adducts comprising MgCln(OR)2-n, and an aprotic Lewis base that are in molar ratios to each other defined by the formula MgCln(OR)2-nLBp in which n is from 0.1 to 1.9, p is higher than 0.4, and R is a C1-C15 hydrocarbon group. The adducts of the present invention are particularly useful as precursors of Ziegler-Natta catalyst components for the polymerization of olefins.Type: ApplicationFiled: March 3, 2005Publication date: December 6, 2007Applicant: Basell Poliolefine Italia s.r.l.Inventors: Yuri Gulevich, Isabella Comurati, Antonio Cristofori, Tiziano Dall'Occo, Giampiero Morini, Fabrizio Piemontesi, Gianni Vitale
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Publication number: 20070208150Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2=CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from ?-keto-ester derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: ApplicationFiled: March 8, 2005Publication date: September 6, 2007Applicant: Basell Poliolefine Italia s.r.lInventors: Yuri Gulevich, Giulio Balbontin, Giampiero Morini, Ilya Nifant'Ev
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Publication number: 20070106039Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from thiophene dicarboxylate derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: ApplicationFiled: October 13, 2004Publication date: May 10, 2007Applicant: Basell Poliolefine Italia s.r.l.Inventors: Yuri Gulevich, Giampiero Morini, Maria Fusto
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Patent number: 6914153Abstract: A process for the preparation of alkylidene substituted succinates comprising a step (a) in which is carried out the reaction of a carbonilic compound, a succinic and a base in a reaction medium and a step (b) in which the alkylidene substituted product obtained in (a) is esterified, characterized in that the succinic ester is used in a molar amount substantially equal to, or lower than, the amount of compound carbonilic compound, (ii) the base is used in a molar amount substantially equal to the succinic ester and is selected from metal hydrides and metal and alkoxides, and (iii) the reaction medium comprises an aprotic liquid medium or a protic liquid medium having a Ka, measured in water, lower than that of iPrOH.Type: GrantFiled: June 4, 2002Date of Patent: July 5, 2005Assignee: Bassell Poliolefine Italia S.p.A.Inventors: Giampiero Morini, Yuri Gulevich, Marco Fachini, Giansiro Prini, Antonio Cristofori
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Publication number: 20050113599Abstract: A process for the preparation of a monoalkylidene substituted 1,4-dions derivatives of formula (Ia) or (Ib) or a mixture of (Ia) and (Ib): wherein: R1, R2 and R3, equal to or different from each other, are hydrogen atoms or C1-C20 hydrocarbon groups: T1 and T2, equal to or different from each other, are OR4, R4, NR42, SR4 or PR42; or T1 and T2 can be fused in an oxygen atom or a NR4 group; said process comprises the step of reacting a compound of formula (II) with a compound of formula (IIIa) or (IIIb) in the presence of at least one equivalent with respect to the compound of formula (IIIa) or (IIIb) of a carbonate of metal M or of a compound of formula MTj such as K2CO3 or KHCO3.Type: ApplicationFiled: July 25, 2003Publication date: May 26, 2005Inventors: Yuri Gulevich, Giampietro Morini
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Publication number: 20050080290Abstract: A process for the preparation of an monoalkylidene substituted 1,4-dions derivatives of formula (Ia) or (Ib) or a mixture of (Ia) and (Ib): wherein: R1, R2 and R3, equal to or different from each other, are hydrogen atoms or C1-C20 hydrocarbon groups: T1 and T2, equal to or different from each other, are OR4. R4, NR42, SR4 or PR42; or T1 and T2 can be fused in an oxygen atom or a NR4 group; said process comprises the step of reacting a compound of formula (II), with a compound of formula (IIIa) or (IIIb), in the presence of at least one equivalent with respect to the compound of formula (IIIa) or (IIIb) of a salts of a base or a neutral base at a temperature higher than 70° C.Type: ApplicationFiled: July 9, 2003Publication date: April 14, 2005Applicant: Basell Poliolefine Italia S.P.A.Inventors: Yuri Gulevich, Giampiero Morini
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Publication number: 20030181743Abstract: A process for the preparation of alkylidene substituted succinates comprising a step (a) in which is carried out the reaction of a carbonilic compound, a succinic and a base in a reaction medium and a step (b) in which the alkylidene substituted product obtained in (a) is esterified, characterized in that the succinic ester is used in a molar amount substantially equal to, or lower than, the amount of compound carbonilic compound, (ii) the base is used in a molar amount substantially equal to the succinic ester and is selected from metal hydrides and metal and alkoxides, and (iii) the reaction medium comprises an aprotic liquid medium or a protic liquid medium having a Ka, measured in water, lower than that of iPrOH.Type: ApplicationFiled: February 5, 2003Publication date: September 25, 2003Inventors: Giampiero Morini, Yuri Gulevich, Marco Fachini, Giansiro Prini, Antonio Cristofori