Patents by Inventor Alain Standaert
Alain Standaert 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: 11859316Abstract: Fibers can include a polypropylene composition, which can include a metallocene random copolymer of propylene and a comonomer that is an alpha-olefin different from propylene. The metallocene random copolymer can have a comonomer content of from 1.2 wt % to 1.8 wt %, a molecular weight distribution of at least 1.0 and of at most 4.0 obtained without thermal or chemical degradation, and a melting temperature Tmelt of at most 140° C. A nonwoven can include the fibers, and a laminate can include the nonwoven. The fibers can be produced by polymerizing the propylene and comonomer in presence of a metallocene-based polymerization catalyst to obtain the metallocene random copolymer. The polypropylene composition can be melt-extruded to obtain a molten polypropylene stream, which can be extruded from capillaries of a spinneret to obtain filaments. A diameter of the filaments can be rapidly reduced to obtain a final diameter.Type: GrantFiled: October 30, 2020Date of Patent: January 2, 2024Assignee: TOTALENERGIES ONETECH BELGIUMInventors: Gaetan Henry, Guillaume Pavy, John Bieser, Hugues Haubruge, Alain Standaert
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Publication number: 20230323101Abstract: The invention relates to a polypropylene composition comprising: (a) a first metallocene-catalyzed polypropylene (RPP-A) which is homopolymer, or a random copolymer of propylene and of a co-monomer; and (b) a second metallocene-catalyzed polypropylene (RPP-B) which is a random copolymer of propylene and of a co-monomer; wherein said polypropylene composition has:- a total co-monomer content of at least 1.1% by weight relative to the total weight of said polypropylene composition, as determined by 13C NMR analysis, said co-monomer being an alpha-olefin different from propylene;- a melting temperature Tm of at least 130° C., measured by DSC; - a crystallization temperature Tc of at least 95.0° C., measured by DSC; - a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) [Mw/Mn] of at least 4.50;- a ratio of z-average molecular weight (Mz) to weight average molecular weight (Mw) [Mz/Mw] of at least 2.10; and- a co-monomer distribution ratio R(Mz)/R(Mn) higher than 0.Type: ApplicationFiled: October 14, 2021Publication date: October 12, 2023Applicant: TOTALENERGIES ONETECH BELGIUMInventors: Thomas COUSTHAM, Alain STANDAERT, Aurélien VANTOMME, Armelle SIGWALD
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Publication number: 20220186009Abstract: The invention relates to a polypropylene composition comprising: (A) a first polypropylene which is a metallocene-catalyzed homopolymer, or a metallocene-catalyzed random copolymer of propylene and of a co-monomer having at most 0.5% by weight of co-monomer content, relative to the total weight of the random copolymer, as determined by 13C NMR analysis; and (B) a second polypropylene which is a metallocene-catalyzed random copolymer of propylene and of a co-monomer; wherein said polypropylene composition is as defined in claim 1. The present invention also relates to a process for the preparation of said polypropylene composition. The present invention also relates to an article comprising said polypropylene composition.Type: ApplicationFiled: April 10, 2020Publication date: June 16, 2022Inventors: Thomas Coustham, Aurélien Vantomme, Armelle Sigwald, Alain Standaert
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Publication number: 20220089848Abstract: The present invention relates to an oxygen-scavenging composition comprising: at least 1.0% by weight of polybutadiene based on the total weight of the composition, wherein said polybutadiene has a number average molecular weight Mn of from 1000 to 10000 g/mol as determined by gel permeation chromatography (GPC) as described in the specification under the Determination methods; and a polypropylene component. The present invention also relates to the use of an oxygen-scavenging composition according to the invention for the manufacture of an article.Type: ApplicationFiled: December 20, 2019Publication date: March 24, 2022Inventors: Daniel Libert, Steven Henning, Alain Standaert, Alexandre Welle, Chantal Goreux, Pascal Navez
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Patent number: 11236221Abstract: The present invention relates to a polyethylene resin suitable for preparing moulded articles, such as caps and closures. The invention provides in particular a polyethylene resin comprising at least two polyethylene fractions A and B, wherein said polyethylene resin has a melt index (MI2), of at least 3.0 g/10 min to at most 5.5 g/10 min as measured according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg, and a density of at least 0.955 g/cm3 to at most 0.965 g/cm3 as measured according to ISO 1183 at 23° C., and a molecular weight distribution Mw/Mn which is at most 7.0, as determined by gel permeation chromatography, with Mw being the weight-average molecular weight and Mn being the number-average molecular weight; and wherein said polyethylene fraction A has a high load melt index (HLMI), as measured according to ISO 1133:1997 condition G at 190° C. and under a load of 21.6 kg, of at least 10.5 and a melt index (MI2) of at least 0.5 g/10 min to at most 1.Type: GrantFiled: November 12, 2018Date of Patent: February 1, 2022Assignee: Total Research & Technology FeluyInventors: David Ribour, Alain Standaert, Armelle Sigwald, Aurélien Vantomme
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Patent number: 11208510Abstract: The invention relates to high purity polypropylenes and polypropylene compositions suitable for injection molding in which the polypropylene is characterized by a percentage of 2,1-insertions, relative to the total number of propylene molecules in the polymer chain, of at least 0.2%; a melting temperature Tm ranging from 140° C. to 160° C. as determined according to ISO 3146; a ratio of frequencies at fixed modulus of 1000 Pa for storage shear modulus (G?) and loss shear modulus (G?) greater than 4.7; a molecular weight distribution (MWD) of at least 2.5; a number average molecular weight (Mn) of at most 45 kg/mol and Carreau-Yasuda parameters ?0, b and ? complying with the relationship: 2.18?1.715(b)?0.015(Ln ?0)2+0.944(b)2+0.0149(Ln ?0)(Ln ?)+0.0095(Ln ?)2>1 when fitted to the CY equation, said CY parameters ?0, b and ? are determined from a dynamic rheology analysis (RDA).Type: GrantFiled: January 12, 2018Date of Patent: December 28, 2021Assignee: Total Research & Technology FeluyInventors: Alain Standaert, Davy Francois, Geoffroy Terlinden
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Publication number: 20210179828Abstract: The present invention relates to a polymer composition comprising: at least 31.0% by weight of a polypropylene (PP1) based on the total weight of the polymer composition; a first polyethylene (A) having a melt flow rate MI2 of at least 2.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg and a density of at least 0.940 g/cm3 as determined according to ISO 1183-2:2005 at a temperature of 23° C.; a second polyethylene (B) having a melt flow rate MI2 inferior to 2.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg; and optionally an ethylene vinyl acetate copolymer. The present invention also relates to an article comprising a polymer composition according to the invention and further relates to a process for making said article.Type: ApplicationFiled: October 27, 2018Publication date: June 17, 2021Inventors: Alain Standaert, Daniel Libert, Katty Den Dauw
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Publication number: 20210179830Abstract: The present invention relates to a polymer composition comprising: a polypropylene; a first polyethylene (A) having a melt flow rate MI2 inferior to 0.2 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg; at least one ethylene vinyl acetate copolymer; and optionally a second polyethylene (B) having a melt flow rate MI2 of at least 0.2 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg; wherein the flow rate ratio of the melt flow rate of the polypropylene, determined according to ISO 1133, condition M at 230° C. and under a load of 2.16 kg, to the melt flow rate MI2 of the first polyethylene (A) is at least 200. The present invention also relates to an article comprising a polymer composition according to the invention and further relates to a process for making said article.Type: ApplicationFiled: October 27, 2018Publication date: June 17, 2021Inventors: Alain Standaert, Isabelle Ydens, Gabriela Quevedo Silvetti, Daniel Libert
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Publication number: 20210047755Abstract: Fibers can include a polypropylene composition, which can include a metallocene random copolymer of propylene and a comonomer that is an alpha-olefin different from propylene. The metallocene random copolymer can have a comonomer content of from 1.2 wt % to 1.8 wt %, a molecular weight distribution of at least 1.0 and of at most 4.0 obtained without thermal or chemical degradation, and a melting temperature Tmelt of at most 140° C. A nonwoven can include the fibers, and a laminate can include the nonwoven. The fibers can be produced by polymerizing the propylene and comonomer in presence of a metallocene-based polymerization catalyst to obtain the metallocene random copolymer. The polypropylene composition can be melt-extruded to obtain a molten polypropylene stream, which can be extruded from capillaries of a spinneret to obtain filaments. A diameter of the filaments can be rapidly reduced to obtain a final diameter.Type: ApplicationFiled: October 30, 2020Publication date: February 18, 2021Inventors: Gaetan Henry, Guillaume Pavy, John Bieser, Hugues Haubruge, Alain Standaert
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Publication number: 20200385554Abstract: The present invention relates to a polyethylene resin suitable for preparing moulded articles, such as caps and closures. The invention provides in particular a polyethylene resin comprising at least two polyethylene fractions A and B, wherein said polyethylene resin has a melt index (MI2), of at least 3.0 g/10 min to at most 5.5 g/10 min as measured according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg, and a density of at least 0.955 g/cm3 to at most 0.965 g/cm3 as measured according to ISO 1183 at 23° C., and a molecular weight distribution Mw/Mn which is at most 7.0, as determined by gel permeation chromatography, with Mw being the weight-average molecular weight and Mn being the number-average molecular weight; and wherein said polyethylene fraction A has a high load melt index (HLMI), as measured according to ISO 1133:1997 condition G at 190° C. and under a load of 21.6 kg, of at least 10.5 and a melt index (MI2) of at least 0.5 g/10 min to at most 1.Type: ApplicationFiled: November 12, 2018Publication date: December 10, 2020Inventors: David Ribour, Alain Standaert, Armelle Sigwald, Aurélien Vantomme
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Publication number: 20200339795Abstract: The present invention relates to a polymer composition comprising: a first polypropylene (A); at least one ethylene vinyl acetate copolymer; wherein said first polypropylene (A) is a recycled polypropylene comprising at most 25.0 % by weight of polyethylene based on the total weight of polypropylene (A). The present invention also relates to an article comprising a polymer composition according to the invention and further relates to a process for making said article.Type: ApplicationFiled: October 27, 2018Publication date: October 29, 2020Inventors: Alain Standaert, Isabelle Ydens, Gabriela Quevedo Silvetti, Daniel Libert, Katty Den Dauw
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Patent number: 10501615Abstract: The present invention relates to a polypropylene composition comprising: a first polypropylene homopolymer or random copolymer (PPR1) having a comonomer content lower than the comonomer content of the second polypropylene, a second polypropylene (PPR2) which is a random copolymer of propylene and of the comonomer; said comonomer being an alpha-olefin different from propylene, the melting temperature of the polypropylene composition (Tm(PPR)) being defined as Tm(PPR)>165?6.9*[total comonomer content]?8.4*[comonomer content of the first polypropylene], the difference between the melting temperature and the crystallization temperature of the polypropylene composition ranges from 27 and 33, and a xylene soluble fraction (XS) at 23° C. of not more than 1.5 wt. %. The present invention also relates to a process for the preparation of said polypropylene composition. The present invention further relates to the use of said polypropylene composition for producing films or moulded articles.Type: GrantFiled: January 22, 2016Date of Patent: December 10, 2019Assignee: Total Research & Technology FeluyInventors: Alain Standaert, Kristien Roegiers, Aurélien Vantomme
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Publication number: 20190359746Abstract: The invention relates to high purity polypropylenes and polypropylene compositions suitable for injection molding in which the polypropylene is characterized by a percentage of 2,1-insertions, relative to the total number of propylene molecules in the polymer chain, of at least 0.2%; a melting temperature Tm ranging from 140° C. to 160° C. as determined according to ISO 3146; a ratio of frequencies at fixed modulus of 1000 Pa for storage shear modulus (G?) and loss shear modulus (G?) greater than 4.7; a molecular weight distribution (MWD) of at least 2.5; a number average molecular weight (Mn) of at most 45 kg/mol and Carreau-Yasuda parameters ?0, b and ? complying with the relationship: 2.18?1.715(b)?0.015(Ln ?0)2+0.944(b)2+0.0149(Ln ?0)(Ln ?)+0.0095(Ln ?)2>1 when fitted to the CY equation, said CY parameters ?0, b and ? are determined from a dynamic rheology analysis (RDA).Type: ApplicationFiled: January 12, 2018Publication date: November 28, 2019Inventors: Alain Standaert, Davy Francois, Geoffroy Terlinden
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Publication number: 20180340058Abstract: The present invention relates to a polypropylene composition comprising: a first polypropylene homopolymer or random copolymer (PPR1) having a comonomer content lower than the comonomer content of the second polypropylene, a second polypropylene (PPR2) which is a random copolymer of propylene and of the comonomer; said comonomer being an alpha-olefin different from propylene, the melting temperature of the polypropylene composition (Tm(PPR)) being defined as Tm(PPR)>165?6.9*[total comonomer content]?8.4*[comonomer content of the first polypropylene], the difference between the melting temperature and the crystallization temperature of the polypropylene composition ranges from 27 and 33, and a xylene soluble fraction (XS) at 23° C. of not more than 1.5 wt. %. The present invention also relates to a process for the preparation of said polypropylene composition. The present invention further relates to the use of said polypropylene composition for producing films or moulded articles.Type: ApplicationFiled: January 22, 2016Publication date: November 29, 2018Inventors: Alain Standaert, Kristien Roegiers, Aurélien Vantomme
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Patent number: 10023663Abstract: Propylene polymers having a melt flow index in the range from 3.0 dg/min to 8.0 dg/min can be particularly suited for high-tenacity fibers and yarns and nonwovens. The propylene polymers can be produced by a process that includes polymerizing propylene or propylene and at least one comonomer in presence of a Ziegler-Natta polymerization catalyst, an aluminium alkyl, and hydrogen.Type: GrantFiled: June 27, 2013Date of Patent: July 17, 2018Assignee: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Peter Geeurickx, Alain Standaert, Jean-Luc Zuliani
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Patent number: 10023667Abstract: Propylene homopolymers having a melt flow index in the range from 3.0 dg/min to 8.0 dg/min can be particularly suited for high-tenacity fibers and yarns and nonwovens. The propylene homopolymers can be produced by a process that can include polymerizing propylene in presence of a Ziegler-Natta polymerization catalyst, an aluminum alkyl, hydrogen and an optional external donor.Type: GrantFiled: June 27, 2013Date of Patent: July 17, 2018Assignee: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Peter Geeurickx, Alain Standaert, Jean-Luc Zuliani
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Patent number: 9994973Abstract: The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved bonding performance and mechanical properties. In particular, the present invention relates to fibers comprising a metallocene random copolymer of propylene and one or more comonomers, said metallocene random copolymer having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwovens of the present invention are characterized by improved properties, in particular improved bonding performance and mechanical properties, when compared to the prior art fibers and nonwovens.Type: GrantFiled: February 19, 2009Date of Patent: June 12, 2018Assignee: Total Research & Technology FeluyInventors: John Bieser, Guillaume Pavy, Hugues Haubruge, Alain Standaert, William Rusty Wheat
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Patent number: 9701769Abstract: Propylene polymer including at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer may be characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. The propylene polymer may be particularly suited for thermoforming.Type: GrantFiled: September 18, 2015Date of Patent: July 11, 2017Assignee: Total Research & Technology FeluyInventors: Thomas Forgue, Jerome Gromada, Alain Standaert, Rita De Luca
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Patent number: 9650465Abstract: The present invention concerns heterophasic propylene copolymers, comprising a propylene homopolymer (PPH) and an ethylene-propylene rubber (EPR), having a very broad molecular weight distribution, a well-defined total ethylene content and a specific intrinsic viscosities of the ethylene-propylene rubber (EPR). The invention further concerns the process to produce such heterophasic propylene copolymers. The heterophasic propylene copolymers of the present invention are particularly suited for pails, pallets, IBCs and crates. In particular, the heterophasic propylene copolymers of the present invention are characterized by an improved resistance to creep.Type: GrantFiled: December 18, 2008Date of Patent: May 16, 2017Assignee: Total Research & Technology FeluyInventors: Kristien Roegiers, Geert Snellings, Alain Standaert
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Publication number: 20160208083Abstract: A cap or closure may be made of a high density polyethylene and polylactic acid composition. The cap or closure may be made by injection moulding or compression moulding. The cap or closure may be a screw-on cap for carbonated or still drinks.Type: ApplicationFiled: July 2, 2014Publication date: July 21, 2016Inventors: Alain STANDAERT, Romain LUIJKX, David RIBOUR, Antonio PEREIRA