Patents by Inventor Daniel Siraux
Daniel Siraux 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: 8946359Abstract: The present invention relates to a process of preparing a polyolefin in a loop reactor by introducing anti-fouling agent through a sleeve provided around at least part of the shaft of the pump. Also, the invention relates to the use of anti-fouling agent to prevent or reduce fouling by feeding the anti-fouling agent against the impeller of the pump upon introduction to the loop reactor.Type: GrantFiled: July 29, 2011Date of Patent: February 3, 2015Assignee: Total Research & Technology FeluyInventors: Daniel Siraux, Aurélien Vantomme, Eric Damme, Daan Dewachter
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Patent number: 8916657Abstract: The present invention relates to a process of preparing a polyolefin in a loop reactor by introducing anti-fouling agent in by-pass pipes. Also, the invention relates to the use of anti-fouling agent to prevent blockage by feeding the anti-fouling agent into the by-pass pipes of the loop reactor.Type: GrantFiled: July 29, 2011Date of Patent: December 23, 2014Assignee: Total Research & Technology FeluyInventors: Daniel Siraux, Daan Dewachter, Louis Fouarge
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Publication number: 20140371397Abstract: A high-density polyethylene (HDPE) can be adapted for the manufacture of caps and closures. The caps and closures can be used as screw-on caps for carbonated or still drinks. The high-density polyethylene can have a density of at least 940 kg/m3 and of at most 970 kg/m3, and a high load melt index HLMI of at least 35 dg/min and of at most 180 dg/min. The high-density polyethylene can include a first polyethylene fraction and a second polyethylene fraction. The first polyethylene fraction can have a density of at least 920 kg/m3 and of at most 945 kg/m3, and a melt index HL275 of at least 3 dg/min and of at most 12 dg/min. The second polyethylene fraction can have a density of at least 960 kg/m3 and of at most 980 kg/m3.Type: ApplicationFiled: September 28, 2012Publication date: December 18, 2014Inventors: David Ribour, Alain Standaert, Daniel Siraux, Ludovic Horion, Olivier Lhost
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Patent number: 8911872Abstract: The invention relates to A process for the polymerization of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm3, wherein in one reactor 30 to 47 wt % based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10 min (the equivalent of HLMI of from 0.01 to 1.56 g/10 min), a density of from 0.925 to 0.942 g/cm3 and an MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced having an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm3, in the presence of a Ziegler-Natta catalyst system.Type: GrantFiled: June 9, 2014Date of Patent: December 16, 2014Assignee: Total Research & Technology FeluyInventors: Aurélien Vantomme, Daniel Siraux, Alain Van Sinoy, Jean-Léon Gielens
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Publication number: 20140334984Abstract: The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said loop reactor by means of a pump. The present process is characterized in that the catalyst is fed in the loop reactor at a distance to the pump. The invention allows production of the polymer with advantageous properties while leading to fewer blockages of the reactor.Type: ApplicationFiled: July 28, 2014Publication date: November 13, 2014Inventors: Eric Damme, Louis Fouarge, Jerome Bette, Alvaro Fernandez, Aurelien Vantomme, Renaud Oreins, Daniel Siraux
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Publication number: 20140299208Abstract: The present invention relates to an apparatus and process for polymerizing olefins. One embodiment comprises polymerizing at least one monomer in a first loop reactor in the presence of a catalyst to produce a first polyolefin fraction. A portion of the first polyolefin fraction is transferred to a second loop reactor, connected in series with the first loop reactor. The process further comprises polymerizing in the second loop reactor at least one monomer in the presence of a catalyst to produce a second polyolefin fraction in addition to the first polyolefin fraction. The combination of the first and second polyolefin fractions can produce a polymer resin fluff having bimodal molecular weight distribution.Type: ApplicationFiled: May 21, 2014Publication date: October 9, 2014Applicant: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Louis Fouarge, Eric Damme, Olivier Miserque, Daniel Siraux, Philippe Bodart, Andre Lewalle, Marc Van der Auwera, Frans Van den Brande, Giacomo Conti, Hugo Vandaele, Mark Verleysen, Carl Van Camp, Etienne Laurent, Philippe Marechal, Marc Moers, Leopold D'Hooghe, Marjan Sillis, Kai Hortman, Pascal Folie, Renaud Oreins
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Publication number: 20140288258Abstract: The invention relates to A process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm3, wherein in one reactor 30 to 47 wt % based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10 min (the equivalent of HLMI of from 0.01 to 1.56 g/10 min), a density of from 0.925 to 0.942 g/cm3 and an MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced having an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm3, in the presence of a Ziegler-Natta catalyst system.Type: ApplicationFiled: June 9, 2014Publication date: September 25, 2014Inventors: Aurélien Vantomme, Daniel Siraux, Alain Van Sinoy, Jean-Léon Gielens
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Patent number: 8829124Abstract: The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said loop reactor by means of a pump. The present process is characterized in that the catalyst is fed in the loop reactor at a distance to the pump. The invention allows production of the polymer with advantageous properties while leading to fewer blockages of the reactor.Type: GrantFiled: December 2, 2013Date of Patent: September 9, 2014Assignee: Total Research & Technology FeluyInventors: Eric Damme, Louis Fouarge, Jerome Bette, Alvaro Fernandez, Aurelien Vantomme, Renaud Oreins, Daniel Siraux
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Patent number: 8802210Abstract: The invention relates to A process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm3, wherein in one reactor 30 to 47 wt % based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10 min (the equivalent of HLMI of from 0.01 to 1.56 g/10 min), a density of from 0.925 to 0.942 g/cm3 and an MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced having an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm3, in the presence of a Ziegler-Natta catalyst system.Type: GrantFiled: October 23, 2013Date of Patent: August 12, 2014Assignee: Total Research & Technology FeluyInventors: Aurélien Vantomme, Daniel Siraux, Alain Van Sinoy, Jean-Léon Gielens
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Patent number: 8796400Abstract: A method for the copolymerization of ethylene and a C3+ olefin in a loop reactor and polymers formed therefrom are described herein. The method generally includes introducing an ethylene monomer, a C3+ olefin and a diluent carrier liquid into a loop reactor. A catalyst system can be supplied to said loop reactor. The diluent liquid, ethylene monomer, and C3+ olefin can be circulated through said loop reactor, while copolymerizing said ethylene and C3+ olefin in the presence of said catalyst system to produce a slurry. The slurry can be diverted into a settling leg, and sequentially discharged therefrom and withdrawn from said loop reactor. An ethylene monomer co-feed can be introduced into said loop reactor at spaced locations downstream of the ethylene and diluent. The ethylene co-feed can be introduced in an amount effective to reduce the variation in the ratio of ethylene and C3+ olefin.Type: GrantFiled: June 14, 2013Date of Patent: August 5, 2014Assignee: Total Research & Technology FeluyInventors: Louis Fouarge, Eric Damme, Olivier Miserque, Daniel Siraux, Philippe Bodart, Andre Lewalle, Marc Van der Auwera, Frans Van den Brande, Giacomo Conti, Hugo Vandaele, Mark Verleysen, Carl Van Camp, Etienne Laurent, Philippe Marechal, Marc Moers, Leopold D'Hooghe, Marjan Sillis, Kai Hortman, Pascal Folie, Renaud Oreins
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Publication number: 20140088272Abstract: The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said loop reactor by means of a pump. The present process is characterized in that the catalyst is fed in the loop reactor at a distance to the pump. The invention allows production of the polymer with advantageous properties while leading to fewer blockages of the reactor.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Eric Damme, Louis Fouarge, Jerome Bette, Alvaro Fernandez, Aurelien Vantomme, Renaud Oreins, Daniel Siraux
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Publication number: 20140073748Abstract: The present invention relates to a method for initiating an ethylene polymerization reaction in an ethylene polymerization loop reactor. More particularly, the invention relates to the timing upon which hydrogen is introduced into the ethylene polymerization loop reactor. The catalysts used in the ethylene polymerization reaction according to present invention are preferably metallocene catalysts.Type: ApplicationFiled: November 14, 2013Publication date: March 13, 2014Applicant: Total Research & Technology FeluyInventor: Daniel Siraux
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Publication number: 20140050873Abstract: The invention relates to A process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm3, wherein in one reactor 30 to 47 wt % based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10 min (the equivalent of HLMI of from 0.01 to 1.56 g/10 min), a density of from 0.925 to 0.942 g/cm3 and an MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced having an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm3, in the presence of a Ziegler-Natta catalyst system.Type: ApplicationFiled: October 23, 2013Publication date: February 20, 2014Applicant: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Aurélien Vantomme, Daniel Siraux, Alain Van Sinoy, Jean-Léon Gielens
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Patent number: 8642710Abstract: The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said loop reactor by means of a pump. The present process is characterized in that the catalyst is fed in the loop reactor at a distance to the pump. The invention allows production of the polymer with advantageous properties while leading to fewer blockages of the reactor.Type: GrantFiled: February 3, 2011Date of Patent: February 4, 2014Assignee: Total Petrochemicals Research FeluyInventors: Eric Damme, Louis Fouarge, Jerôme Bette, Alvaro Fernandez, Aurélien Vantomme, Renaud Oreins, Daniel Siraux
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Patent number: 8629223Abstract: The present invention relates to a method for initiating an ethylene polymerization reaction in an ethylene polymerization loop reactor. More particularly, the invention relates to the timing upon which hydrogen is introduced into the ethylene polymerization loop reactor. The catalysts used in the ethylene polymerization reaction according to present invention are preferably metallocene catalysts.Type: GrantFiled: December 17, 2010Date of Patent: January 14, 2014Assignee: Total Research & Technology FeluyInventor: Daniel Siraux
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Publication number: 20130345374Abstract: A method for the copolymerization of ethylene and a C3+ olefin in a loop reactor and polymers formed therefrom are described herein. The method generally includes introducing an ethylene monomer, a C3+ olefin and a diluent carrier liquid into a loop reactor. A catalyst system can be supplied to said loop reactor. The diluent liquid, ethylene monomer, and C3+ olefin can be circulated through said loop reactor, while copolymerizing said ethylene and C3+ olefin in the presence of said catalyst system to produce a slurry. The slurry can be diverted into a settling leg, and sequentially discharged therefrom and withdrawn from said loop reactor. An ethylene monomer co-feed can be introduced into said loop reactor at spaced locations downstream of the ethylene and diluent. The ethylene co-feed can be introduced in an amount effective to reduce the variation in the ratio of ethylene and C3+ olefin.Type: ApplicationFiled: June 14, 2013Publication date: December 26, 2013Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Louis Fouarge, Eric Damme, Olivier Miserque, Daniel Siraux, Philippe Bodart, Andre Lewalle, Marc Van der Auwera, Frans Van den Brande, Giacomo Conti, Hugo Vandaele, Mark Verleysen, Carl Van Camp, Etienne Laurent, Philippe Marechal, Marc Moers, Leopold D'Hooghe, Marjan Sillis, Kai Hortman, Pascal Folie, Renaud Oreins
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Patent number: 8609792Abstract: The invention relates to A process for the polymerization of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm3, wherein in one reactor 30 to 47 wt % based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10 min (the equivalent of HLMI of from 0.01 to 1.56 g/10 min), a density of from 0.925 to 0.942 g/cm3 and an MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced having an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm3, in the presence of a Ziegler-Natta catalyst system.Type: GrantFiled: February 7, 2011Date of Patent: December 17, 2013Assignee: Total Research & Technology FeluyInventors: Aurélien Vantomme, Daniel Siraux, Alain Van Sinoy, Jean-Léon Gielens
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Publication number: 20130202834Abstract: The invention relates to A process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm3, wherein in one reactor 30 to 47 wt % based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10 min (the equivalent of HLMI of from 0.01 to 1.56 g/10 min), a density of from 0.925 to 0.942 g/cm3 and an MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced having an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm3, in the presence of a Ziegler-Natta catalyst system.Type: ApplicationFiled: February 7, 2011Publication date: August 8, 2013Applicant: Total Petrochemicals Research FeluyInventors: Aurélien Vantomme, Daniel Siraux, Alain Van Sinoy, Jean-Léon Gielens
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Patent number: 8492489Abstract: A method for the copolymerization of ethylene and a C3+ olefin copolymer in a loop reactor system and polymers formed therefrom are described herein.Type: GrantFiled: August 24, 2010Date of Patent: July 23, 2013Assignee: Total Petrochemicals Research FeluyInventors: Louis Fouarge, Eric Damme, Olivier Miserque, Daniel Siraux, Philippe Bodart, André Lewalle, Marc Van der Auwera, Frans Van den Brande, Giacomo Conti, Hugo Vandaele, Mark Verleysen, Carl Van Camp, Etienne Laurent, Philippe Marechal, Marc Moers, Leopold D'Hooghe, Marjan Sillis, Kai Hortman, Pascal Folie, Renaud Oreins
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Publication number: 20130131287Abstract: The present invention relates to a process of preparing a polyolefin in a loop reactor by introducing anti-fouling agent in by-pass pipes. Also, the invention relates to the use of anti-fouling agent to prevent blockage by feeding the anti-fouling agent into the by-pass pipes of the loop reactor.Type: ApplicationFiled: July 29, 2011Publication date: May 23, 2013Applicant: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Daniel Siraux, Daan Dewachter, Louis Fouarge