Patents by Inventor Doug Berti
Doug Berti 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: 8192695Abstract: Disclosed is a reactor or sparging vessel suitable for use for reaction mixtures containing vapor and/or gas bubbles. It comprises a mechanical agitation means suitable to redistribute flow radially and at least one perforated plate suitable to provide resistance to axial flow. In desirable embodiments it may include at least one electrically or hydraulically-stimulated rotatable shaft upon which at least one blade impeller is mounted, and at least one perforated plate oriented such that it provides resistance to axial flow. The perforated plate may have channels therethrough whose cross-sectional dimension is smaller than the projected average diameter of the vapor and/or gas bubbles. The reactor or sparging vessel offers improved flow dynamics, including reduced back mixing and narrowed residence time distribution. A method of employing the reactor for a reaction mixture containing vapor and/or gas bubbles is also disclosed. An impeller blade having two curvatures is also disclosed.Type: GrantFiled: May 4, 2005Date of Patent: June 5, 2012Assignee: Fina Technology, Inc.Inventors: Laurent Doucet, Philippe Tanguy, Doug Berti, Thanh Nguyen, Guillaume Franc, Jay Reimers
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Patent number: 7488774Abstract: A continuous process for producing high impact polystyrene comprising feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture, polymerizing the reaction mixture in said linear flow reactor to at least the phase inversion point of the mixture, and feeding the reaction mixture from the first linear flow reactor to a second reactor for post-inversion polymerization of the mixture. A method of producing an elastomer-reinforced polymer comprising inverting a reaction mixture comprising at least one vinyl aromatic monomer, an elastomer, and a free radical initiator in a plug flow reactor. A high impact polystyrene reactor system, comprising a linear flow reactor having an inlet and an outlet, and a continuously stirred tank reactor having an inlet in fluid communication with the linear flow reactor outlet and receiving an effluent from the linear flow reactor.Type: GrantFiled: March 20, 2006Date of Patent: February 10, 2009Assignee: Fina Technology, Inc.Inventors: Doug Berti, Aron Griffith, Jay Reimers, Thanh Nguyen
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Publication number: 20070225440Abstract: Disclosed is a composition comprising an impact modified polystyrene prepared using a process comprising dissolving a styrene-butadiene-styrene block copolymer in styrene monomer and polymerizing the styrene monomer wherein the impact modified polystyrene has a haze value of less than or equal to 12 percent. Also disclosed is an impact modified polystyrene prepared using the same process and having a ratio of Mz/Mn of at least 4.1.Type: ApplicationFiled: March 24, 2007Publication date: September 27, 2007Applicant: Fina Technology, Inc.Inventors: Jose Sosa, Kenneth Blackmon, Doug Berti
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Publication number: 20070142594Abstract: A method for removing heat from a horizontal linear flow reactor, comprising introducing vapor bubbles into a liquid medium in the reactor and removing the vapor from the reactor. A method of producing an elastomer reinforced polymer comprising autorefrigerating the reactants in a horizontal linear flow reactor in which both initial polymerization and phase inversion occur. A method of removing heat from a horizontal plug flow reactor comprising aerating the reactants within the reactor, wherein the aeration promotes radial mixing of the reactants but does not substantially promote axial mixing of the reactants. A horizontal linear flow reactor, comprising a horizontal reaction chamber having one or more mechanical flow facilitators disposed therein and a sparger attached to the bottom of at least a portion of the reaction chamber.Type: ApplicationFiled: March 20, 2006Publication date: June 21, 2007Inventors: Doug Berti, Thanh Nguyen, Philippe Tanguy, Marie-Noelle Moutaillier, Jay Reimers
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Publication number: 20070142549Abstract: A continuous process for producing high impact polystyrene comprising feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture, polymerizing the reaction mixture in said linear flow reactor to at least the phase inversion point of the mixture, and feeding the reaction mixture from the first linear flow reactor to a second reactor for post-inversion polymerization of the mixture. A method of producing an elastomer-reinforced polymer comprising inverting a reaction mixture comprising at least one vinyl aromatic monomer, an elastomer, and a free radical initiator in a plug flow reactor. A high impact polystyrene reactor system, comprising a linear flow reactor having an inlet and an outlet, and a continuously stirred tank reactor having an inlet in fluid communication with the linear flow reactor outlet and receiving an effluent from the linear flow reactor.Type: ApplicationFiled: March 20, 2006Publication date: June 21, 2007Inventors: Doug Berti, Aron Griffith, Jay Reimers, Thanh Nguyen
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Publication number: 20060251554Abstract: Disclosed is a reactor or sparging vessel suitable for use for reaction mixtures containing vapor and/or gas bubbles. It comprises a mechanical agitation means suitable to redistribute flow radially and at least one perforated plate suitable to provide resistance to axial flow. In desirable embodiments it may include at least one electrically or hydraulically-stimulated rotatable shaft upon which at least one blade impeller is mounted, and at least one perforated plate oriented such that it provides resistance to axial flow. The perforated plate may have channels therethrough whose cross-sectional dimension is smaller than the projected average diameter of the vapor and/or gas bubbles. The reactor or sparging vessel offers improved flow dynamics, including reduced back mixing and narrowed residence time distribution. A method of employing the reactor for a reaction mixture containing vapor and/or gas bubbles is also disclosed. An impeller blade having two curvatures is also disclosed.Type: ApplicationFiled: May 4, 2005Publication date: November 9, 2006Applicant: Fina Technology, Inc.Inventors: Laurent Doucet, Philippe Tanguy, Doug Berti, Thanh Nguyen, Guillaume Franc, Jay Reimers
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Patent number: 7060736Abstract: The selection of additives to improve the solubility of blowing agents may be facilitated by using a method that involves determining and comparing the activity coefficients of prospective additives to the activity coefficients of candidate blowing agents in a given base polymer for producing a polymeric foam article. The method for the selection of an additive may comprise selecting a representative compound for the base polymer and determining a first activity coefficient for a blowing agent in the representative compound. Also selected are several candidate additives, each having a different functional group, and determining a second activity coefficient for the blowing agent in each of the candidate additives. Among the candidate additives is selected the additive, wherein the second activity coefficient is lower than the first activity coefficient. The method may be incorporated into a process for forming polymeric foams and the manufacture of a polymeric foam.Type: GrantFiled: May 7, 2003Date of Patent: June 13, 2006Assignee: Fine Technology, Inc.Inventors: Jay Reimers, Doug Berti
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Publication number: 20050070663Abstract: Disclosed is a composition comprising an impact modified polystyrene prepared using a process comprising dissolving a styrene-butadiene-styrene block copolymer in styrene monomer and polymerizing the styrene monomer wherein the impact modified polystyrene has a haze value of less than or equal to 12 percent. Also disclosed is an impact modified polystyrene prepared using the same process and having a ratio of Mz/Mn of at least 4.1.Type: ApplicationFiled: December 5, 2003Publication date: March 31, 2005Applicant: Fina Technology, Inc.Inventors: Jose Sosa, Kenneth Blackmon, Doug Berti
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Publication number: 20040225023Abstract: The selection of additives to improve the solubility of blowing agents may be facilitated by using a method that involves determining and comparing the activity coefficients of prospective additives to the activity coefficients of candidate blowing agents in a given base polymer for producing a polymeric foam article. The method for the selection of an additive may comprise selecting a representative compound for the base polymer and determining a first activity coefficient for a blowing agent in the representative compound. Also selected are several candidate additives, each having a different functional group, and determining a second activity coefficient for the blowing agent in each of the candidate additives. Among the candidate additives is selected the additive, wherein the second activity coefficient is lower than the first activity coefficient. The method may be incorporated into a process for forming polymeric foams and the manufacture of a polymeric foam.Type: ApplicationFiled: May 7, 2003Publication date: November 11, 2004Applicant: FINA Technology, Inc.Inventors: Jay Reimers, Doug Berti
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Patent number: 6143833Abstract: A method and apparatus for use in making high impact polystyrene by polymerizing butadiene into polybutadiene, continuously exchanging styrene monomer for the solvent used to produce the polybutadiene, and polymerizing the resultant polybutadiene/styrene solution into high impact polystyrene. Apparatus is disclosed that includes butadiene and solvent preparation means, additive metering means, butadiene polymerization means, solvent exchange means, solvent recovery means and styrene polymerization means.Type: GrantFiled: June 11, 1999Date of Patent: November 7, 2000Assignee: Fina Technology, Inc.Inventors: Brad Klussmann, Jon Schweinle, Doug Berti, Thanh Nguyen, Jose Sosa