Patents by Inventor Giovanni Baruzzi
Giovanni Baruzzi 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: 7365137Abstract: A multistep process for the polymerization of one or more olefins comprising a first step of polymerizing one or more of said olefins in the presence of a catalyst of the Ziegler-Natta type, a step wherein the polymer obtained in the first step is contacted with a catalyst system comprising an half-sandwich metallocene compound, followed by a second polymerization step. The amount of homo- or copolymer of olefins produced in the first polymerization step is between 10% to 90% by weight of the total amount of polymer produced.Type: GrantFiled: July 11, 2002Date of Patent: April 29, 2008Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Giovanni Baruzzi
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Patent number: 7183332Abstract: A process for preparing porous olefin polymers comprising bringing into contact in a polymerization reactor, at a temperature T1, one or more olefins of the formula (I) CH2?CHR1, R1 being hydrogen, a C1–C20-alkyl or a C6–C12-aryl group, with a catalyst obtained by reacting a solid catalyst component in the form of spheroidal particles comprising a compound of Ti or V not containing metal-? bonds and a Mg halide, optionally containing one or more electron donor compounds, with an aluminum-alkyl (Al-alkyl) compound, then raising the temperature up to the polymerization temperature, said process being characterized in that: a) if the temperature T1 is lower than 40° C.Type: GrantFiled: December 21, 2001Date of Patent: February 27, 2007Assignee: Basell Poliolefine Italia S.p.A.Inventors: Angelo Ferraro, Giovanni Baruzzi, Constantine A. Stewart, Ofelia Fusco
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Patent number: 7049377Abstract: Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: i. a solid catalyst component containing an internal donor; ii. an Al-alkyl compound, and optionally iii. an external donor; the internal donor and/or the external donor being cyclopolyenic 1,3-diethers. The catalysts are useful for the polymerization of alpha-olefins.Type: GrantFiled: February 20, 1996Date of Patent: May 23, 2006Assignee: Basell Poliolefine Italia s.r.l.Inventors: Giampiero Morini, Enrico Albizzati, Giulio Balbontin, Giovanni Baruzzi, Antonio Cristofori
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Patent number: 7022640Abstract: Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: i. a solid catalyst component containing an internal donor; ii. an Al-alkyl compound, and optionally iii. an external donor; the internal donor and/or the external donor being cyclopolyenic 1,3-diethers. The catalysts are useful for the polymerization of alpha-olefins.Type: GrantFiled: June 28, 2004Date of Patent: April 4, 2006Assignee: Basell Poliolefine Italia s.r.l.Inventors: Giampiero Morini, Enrico Albizzati, Giulio Balbontin, Giovanni Baruzzi, Antonio Cristofori
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Patent number: 7022793Abstract: A process for the preparation of heterophasic elastomeric polymer comprising the step of polymerizing ethylene, an alpha-olefin CH2?CHL, where L is an alkyl, cycloalkyl or aryl radical with 1–10 carbon atoms and a non-conjugated diene in the presence of a catalyst system comprising a transition metal catalyst component supported on a porous alpha-olefin polymer, characterized in that at least part of the diene is impregnated on the porous alpha-olefin polymer.Type: GrantFiled: November 22, 2002Date of Patent: April 4, 2006Assignee: Basell Polyolefine GmbHInventors: Maurizio Galimberti, Angelo Ferraro, Giovanni Baruzzi, Ofelia Fusco
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Patent number: 6992153Abstract: Multi-stage process for the polymerization of olefins CH2?CHR, where R is hydrogen or a C1–C10 alkyl, cycloalkyl or aryl radical, comprising: (I) a first polymerization stage carried out in the presence of a catalyst comprising the product of the reaction between an alkyl-Al compound and a solid component comprising at least one compound of transition metal M1 not containing M1-? bonds, thus obtaining a porous polymer, (II) a treatment stage, wherein said porous polymer is contacted with a compound capable of deactivating the catalyst used in stage (I) and with a late transition metal complex; and (III) a second stage of polymerization, carried out in the presence of the product obtained from treatment stage (II).Type: GrantFiled: March 6, 2000Date of Patent: January 31, 2006Assignees: Basell Polyolefine GmbH, E.I. du Pont de Nemours and CompanyInventors: Gianni Collina, Edward Bryan Coughlin, Giuliano Cecchin, Giovanni Baruzzi, Anna Fait
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Publication number: 20050049371Abstract: A process for the preparation of heterophasic elastomeric polymer comprising the step of polymerizing ethylene, an alpha-olefin CH2=CHL, where L is an alkyl, cycloalkyl or aryl radical with 1-10 carbon atoms and a non-conjugated diene in the presence of a catalyst system comprising a transition metal catalyst component supported on a porous alpha-olefin polymer, characterized in that at least part of the diene is impregnated on the porous alpha-olefin polymer.Type: ApplicationFiled: November 22, 2002Publication date: March 3, 2005Inventors: Maurizio Galimberti, Angelo Ferraro, Giovanni Baruzzi, Ofelia Fusco
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Publication number: 20050003951Abstract: A porous polymer of propylene optionally containing up to 15% by weight of an alpha-olefins of formula CH2?CHR wherein R is a hydrogen atom or a C2-C10 alkyl radical having the following characteristics: a) in the Temperature Rising Elution Temperature analysis (TREF) a fraction eluted at a temperature range front 25° C. to 97° higher than 20% of the total polymer eluted; and b) a pore volume (determined by mercury absorption) greater than 0.45 cc/g.Type: ApplicationFiled: November 26, 2002Publication date: January 6, 2005Inventors: Angelo Ferraro, Giovanni Baruzzi, Constantine A Stewart
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Publication number: 20040242815Abstract: A multistep process for the polymerization of one or more olefins comprising a first step of polymerizing one or more of said olefins in the presence of a catalyst of the Ziegler-Natta type, a step wherein the polymer obtained in the first step is contacted with a catalyst system comprising an half-sandwich metallocene compound, followed by a second polymerization step. The amount of homo- or copolymer of olefins produced in the first polymerization step is between 10% to 90% by weight of the total amount of polymer produced.Type: ApplicationFiled: January 6, 2004Publication date: December 2, 2004Inventors: Luigi Resconi, Giovanni Baruzzi
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Publication number: 20040235645Abstract: Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of:Type: ApplicationFiled: June 28, 2004Publication date: November 25, 2004Inventors: Giampiero Morini, Enrico Albizzati, Giulio Balbontin, Giovanni Baruzzi, Antonio Christofori
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Publication number: 20040092615Abstract: A process for preparing porous olefin polymers comprising bringing into contact in a polymerization reactor, at a temperature T1, one or more olefins of the formula (I) CH2═CHR1, R1 being hydrogen, a C1-C20-alkyl or a C6-C12-aryl group, with a catalyst obtained by reacting a solid catalyst component in the form of spheroidal particles comprising a compound of Ti or V not containing metal-&pgr; bonds and a Mg halide, optionally containing one or more electron donor compounds, with an aluminum-alkyl (Al-alkyl) compound, then raising the temperature up to the polymerization temperature, said process being characterized in that: a) if the temperature T1 is lower than 40° C.Type: ApplicationFiled: July 13, 2003Publication date: May 13, 2004Inventors: Angelo Ferraro, Giovanni Baruzzi
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Patent number: 6730754Abstract: A process for producing substantially amorphous propylene (co)polymers, comprising contacting propylene optionally in the presence of one or more olefins under polymerization conditions with a catalyst system comprising: A) a half sandwich titanium complex wherein the cyclopentadienyl is substituted with one or two heterocyclic rings, according to formula (I): cf formula (I) in claim 1: wherein X is N or P; Z is C, Si or Ge; Y1 is an atom selected from the group consisting of NR7, O, PR7 or S; Y2 is selected from the group consisting of CR8 or Y1 and m is 0 or 1 and B) an activating cocatalyst. The above titanium complex and the ligand useful as intermediates in their synthesis are also described.Type: GrantFiled: September 18, 2001Date of Patent: May 4, 2004Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Simona Guidotti, Giovanni Baruzzi, Cristiano Grandini, Ilya E. Nifant'ev, Igor A. Kashulin, Pavel V. Ivchenko
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Patent number: 6716940Abstract: Catalyst system for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising the product of the reaction between (a) a solid catalyst component comprising Mg, Ti, and halogen, (b) dimethylaluminium chloride (DMAC) and (c) an alkylaluinium compound, in which the molar ratio between (b) and (c) is lower than 10. This kind of catalyst system is particularly suitable for the preparation of copolymers of ethylene with &agr;-olefins due to its high capacity for incorporating the comonomer while at the same time maintaining high yields.Type: GrantFiled: February 28, 2002Date of Patent: April 6, 2004Assignee: Basell Polyolefine GmbHInventors: Tiziano Dall'Occo, Giovanni Baruzzi, Diego Brita, Mario Sacchetti
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Patent number: 6620888Abstract: Described is a thermoplastic composition including: (A) 10 to 99% by weight of a propylene polymer optionally containing from 0.1 to 5% by moles of units derived from an olefin of the formula CH2═CHR, R being hydrogen, a C2-C20-alkyl or a C6-C12-aryl group, having the following characteristics: 50<isotactic triads (mm)<85; melting point (Tm) from 60° C. to 120° C., and (B) 1 to 90% by weight of a propylene polymer having an essentially isotactic structure, optionally containing from 0.1 to 5% by moles of units derived from an olefin of the formula CH2═CHR, R being hydrogen, a C2-C20-alkyl or a C6-C12-aryl group, which has a melting point (Tm) higher than 153° C. Also described is a process for the preparation of this thermoplastic composition.Type: GrantFiled: November 20, 2001Date of Patent: September 16, 2003Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Angelo Ferraro, Giovanni Baruzzi
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Publication number: 20020198336Abstract: It is described a thermoplastic composition comprising. (A) 10 to 99% by weight of a propylene polymer optionally containing from 0.1 to 5% by moles of units deriving from an olefin of formula CH2═CHR, R being hydrogen, a C2-C20-alkyl or a C6-C12-aryl group, having the following characteristics: 50<isotactic triads (mm)<85; melting point (Tm) from 60° C. to 120° C., and (B) 1 to 90% by weight of a propylene polymer having an essentially isotactic structure, optionally containing from 0.1 to 5% by moles of units deriving from an olefin of formula CH2═CHR, R being hydrogen, a C2-C20-alkyl or a C6-C12-aryl group, which has a melting point (Tm) higher than 153° C. It is also described a process for the preparation of said thermoplastic composition.Type: ApplicationFiled: November 20, 2001Publication date: December 26, 2002Inventors: Luigi Resconi, Angelo Ferraro, Giovanni Baruzzi
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Patent number: 6479609Abstract: A multi-stage process for preparing ethylene (co)polymers having broad molecular weight distributions is disclosed, said process comprising: (A) a first polymerization stage in which, in the presence of a Ti or V catalyst, a first ethylene polymer is prepared; (B) a treatment stage in which the catalyst used in the first stage is deactivated and in which a bridged bis-2-indenyl zirconocene is supported on the ethylene polymer produced in stage (A), optionally in the presence of a suitable cocatalyst; and (C) a second polymerization stage in which ethylene is polymerized in the presence of the product obtained from stage (B). Furthermore, polyethylene obtainable by the above process is disclosed, having intrinsic viscosity ranging from 0.5 to 6 dl/g, Mw/Mn>8 and cold xylene solubility<1.2 % wt.Type: GrantFiled: June 18, 2001Date of Patent: November 12, 2002Assignee: Basell Technology Company BVInventors: Tiziano Dall'Occo, Giovanni Baruzzi, Colin J. Schaverien
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Publication number: 20020147286Abstract: A process for producing substantially amorphous propylene (co)polymers, comprising contacting propylene optionally in the presence of one or more olefins under polymerization conditions with a catalyst system comprising: A) a half sandwich titanium complex wherein the cyclopentadienyl is substituted with one or two heterocyclic rings, according to formula (I): cf formula (I) in claim 1: wherein X is N or P; Z is C, Si or Ge; Y1 is an atom selected from the group consisting of NR7. O, PR7 or S; Y2 is selected from the group consisting of CR8 or Y1 and m is 0 or 1 and B) an activating cocatalyst. The above titanium complex and the ligand useful as intermediates in their synthesis are also described.Type: ApplicationFiled: September 18, 2001Publication date: October 10, 2002Inventors: Luigi Resconi, Simona Guidotti, Giovanni Baruzzi, Cristiano Grandini, Iilya E. Nifant'ev, Igor A. Kashulin, Pavel V. Ivchenko
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Patent number: 6262195Abstract: A multi-stage process for preparing ethylene (co)polymers having broad molecular weight distributions is disclosed, said process comprising: (A) a first polymerization stage in which, in the presence of a Ti or V catalyst, a first ethylene polymer is prepared; (B) a treatment stage in which the catalyst used in the first stage is deactivated and in which a bridged bis-2-indenyl zirconocene is supported on the ethylene polymer produced in stage (A), optionally in the presence of a suitable cocatalyst; and (C) a second polymerization stage in which ethylene is polymerized in the presence of the product obtained from stage (B). Furthermore, polyethylene obtainable by the above process is disclosed, having intrinsic viscosity ranging from 0.5 to 6 dl/g, Mw/Mn>8 and cold xylene solubility<1.2% wt.Type: GrantFiled: March 9, 1999Date of Patent: July 17, 2001Assignee: Montell Technology Company bvInventors: Tiziano Dall'Occo, Giovanni Baruzzi, Colin J. Schaverien
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Patent number: 5902163Abstract: A debris shedding buoy having a float body with a top and a bottom is provided. The buoy includes a slide rail, adapted for slidable engagement to a mooring line, is attached to the bottom of the float body. The slide rail is located in a generally centered position beneath the float body and is oriented in a first direction. A rudder device is affixed to the float body and adapted to produce a stabilizing force to maintain the float body in a quasi stable orientation with respect to a current direction, with the first direction being generally aligned to the current direction. Debris lodging against the float body overcomes the stabilizing force produced by the rudder device, causing the float body to rotate from the quasi stable orientation to a second orientation to shed the debris whereupon the float body rotates back to the quasi stable orientation.Type: GrantFiled: May 9, 1997Date of Patent: May 11, 1999Assignee: Automatic Power, Inc.Inventors: Giovanni Baruzzi, Stephen E. Trenchard
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Patent number: 5723400Abstract: Process for the preparation of a solid catalyst component for olefins polymerization including (1) a magnesium halide in active form, (2) a titanium compound, and (3) an electron-donor compound selected from particular 1,3-diethers, the process being carried out by reaction between the compounds from (1) to (3), and including at least two additions of electron-donor (3) in the following order:a) one addition prior to or during a reaction with the titanium compound or with a halogenated compound, and thenb) one addition prior to or during a further reaction with the titanium compound.Type: GrantFiled: February 20, 1996Date of Patent: March 3, 1998Assignee: Montell North America Inc.Inventors: Giampiero Morini, Enrico Albizzati, Giulio Balbontin, Giovanni Baruzzi, Antonio Cristofori