Patents by Inventor David Vandewiele
David Vandewiele 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: 9238182Abstract: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H2, N2, O2, CO, CO2, and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H2, N2, O2, CO and CO2. The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.Type: GrantFiled: September 11, 2014Date of Patent: January 19, 2016Assignee: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Denis Mignon, David Vandewiele, Bernard Van Der Schrick, Camille Vercruysse
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Patent number: 9206267Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a blend of a first Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a diether compound as internal electron donor, and a second Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a succinate compound as internal electron donor.Type: GrantFiled: March 17, 2014Date of Patent: December 8, 2015Assignee: Total Research & Technology FeluyInventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Patent number: 9034784Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a Ziegler-Natta catalyst comprising a titanium compound having at least one titanium-halogen bond, and a blend of a diether compound and a succinate compound as internal electron donor, all supported on a magnesium halide in active form, an organoaluminium compound and an optional external donor.Type: GrantFiled: January 15, 2014Date of Patent: May 19, 2015Assignee: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Publication number: 20140377137Abstract: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H2, N2, O2, CO, CO2, and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H2, N2, O2, CO and CO2. The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.Type: ApplicationFiled: September 11, 2014Publication date: December 25, 2014Inventors: Denis Mignon, David Vandewiele, Bernard Van Der Schrick, Camille Vercruysse
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Patent number: 8883918Abstract: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H2, N2, O2, CO, CO2, and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H2, N2, O2, CO and CO2. The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.Type: GrantFiled: September 10, 2010Date of Patent: November 11, 2014Assignee: Total Research & Technology FeluyInventors: Denis Mignon, David Vandewiele, Bernard Van De Schrick, Camille Vercruysse
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Publication number: 20140200316Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a blend of a first Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a diether compound as internal electron donor, and a second Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a succinate compound as internal electron donor.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: Total Research & Technology FeluyInventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Publication number: 20140128250Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a Ziegler-Natta catalyst comprising a titanium compound having at least one titanium-halogen bond, and a blend of a diether compound and a succinate compound as internal electron donor, all supported on a magnesium halide in active form, an organoaluminium compound and an optional external donor.Type: ApplicationFiled: January 15, 2014Publication date: May 8, 2014Applicant: Total Research & Technology FeluyInventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Patent number: 8680222Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a Ziegler-Natta catalyst comprising a titanium compound having at least one titanium-halogen bond, and a blend of a diether compound and a succinate compound as internal electron donor, all supported on a magnesium halide in active form, an organoaluminium compound and an optional external donor.Type: GrantFiled: June 21, 2007Date of Patent: March 25, 2014Assignee: Total Research & Technology FeluyInventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Publication number: 20120178879Abstract: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H2, N2, O2, CO, CO2, and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H2, N2, O2, CO and CO2. The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.Type: ApplicationFiled: September 10, 2010Publication date: July 12, 2012Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Denis Mignon, David Vandewiele, Bernard Van Der Schrick, Camille Vercruysse
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Publication number: 20100234544Abstract: A process for the polymerisation of olefins comprising the steps of: a) passing an olefin-containing hydrocarbon feedstock over a sorbent material comprising nickel deposited on a support material wherein said nickel is present as both nickel oxide and metallic nickel; b) converting at least part of the olefins contained in said hydrocarbon feedstock into a polymer over one or more metallocene catalysts; and c) recovering the polymer product.Type: ApplicationFiled: June 20, 2008Publication date: September 16, 2010Applicant: Total Petrochemicals Research FeluyInventors: Kai Hortmann, David Vandewiele, William Gauthier
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Publication number: 20100069580Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a blend of a first Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a diether compound as internal electron donor, and a second Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a succinate compound as internal electron donor.Type: ApplicationFiled: June 21, 2007Publication date: March 18, 2010Inventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Publication number: 20090326172Abstract: The present invention relates to a process for the production of propylene polymers in the presence of a Ziegler-Natta catalyst comprising a titanium compound having at least one titanium-halogen bond, and a blend of a diether compound and a succinate compound as internal electron donor, all supported on a magnesium halide in active form, an organoaluminium compound and an optional external donor.Type: ApplicationFiled: June 21, 2007Publication date: December 31, 2009Inventors: Alain Standaert, Jerome Gromada, David Vandewiele
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Publication number: 20090312507Abstract: The present invention relates of a polymerization process for the production of propylene polymers with low ash content using a Ziegler-Natta catalyst with a diether as internal electron donor. The present invention also relates to the propylene polymers produced with said process as well as to films, fibers and nonwovens made with said propylene polymer.Type: ApplicationFiled: April 24, 2007Publication date: December 17, 2009Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Alain Standaert, Jerome Gromada, David Vandewiele