Patents by Inventor John Bieser
John Bieser 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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Publication number: 20240110048Abstract: Disclosed is a polymeric blend and a method of making and using the same. The polymeric blend includes 75 wt. % to 99 wt. % of a first polypropylene composition comprising polypropylene and having a melt flow rate (MFR) of A g/10 min as measured by ASTM D1238 (230° C./2.16 kg), wherein the first polypropylene composition has been previously extruded prior to forming the blend, and 1 wt. % to 25 wt. % of a second polypropylene composition comprising polypropylene and an organic peroxide and having a MFR of B g/10 min as measured by ASTM D1238 (230° C./2.16 kg), wherein the second polypropylene composition has been previously extruded prior to forming the blend, wherein the polymeric blend has a MFR of C g/10 min as measured by ASTM D1238 (230° C./2.16 kg), and wherein C is greater than A.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Inventors: Likuo Sun, John Bieser, LuAnn Kelly
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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: 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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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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Publication number: 20150031262Abstract: 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: August 28, 2012Publication date: January 29, 2015Inventors: Gaëtan Henry, Guillaume Pavy, John Bieser, Hugues Haubruge, Alain Standaert
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Publication number: 20120196984Abstract: Polyolefin blends and processes for forming polyolefin blends are described herein. Such processes generally include providing a polyolefin, providing a concentrated monomer system including a first monomer and a first portion of the polyolefin and blending the concentrated monomer system with a second portion of the polyolefin to form a modified polyolefin.Type: ApplicationFiled: March 6, 2012Publication date: August 2, 2012Applicant: FINA TECHNOLOGY, INC.Inventors: John Bieser, Fengkui Li
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Publication number: 20120034838Abstract: Processes of forming a fiber article and articles formed therefrom are described herein. The processes generally include providing a propylene-based polymer; contacting the propylene-based polymer with polylactic acid in the presence of a reactive modifier, a non-reactive modifier or a combination thereof to form a polymeric blend, wherein the reactive modifier is selected from epoxy-functionalized polyolefins and the non-reactive modifier comprises an elastomer; and forming the polymeric blend into a fiber article.Type: ApplicationFiled: August 6, 2010Publication date: February 9, 2012Applicant: Fina Technology, Inc.Inventors: Fengkui Li, Tim Coffy, Michel Daumerie, John Bieser, Ryan Albores
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Publication number: 20110244750Abstract: Bicomponent fibers, methods of forming bicomponent fibers and articles formed from bicomponent fibers, are described herein. The bicomponent fibers generally include a sheath component and a core component, wherein the sheath component consists essentially of a first metallocene polypropylene and the core component consists essentially of a second metallocene polypropylene.Type: ApplicationFiled: June 13, 2011Publication date: October 6, 2011Applicant: Fina Technology, Inc.Inventors: John Bieser, Guillaume Pavy, Hughes Haubruge, Alain Sandaert, William R. Wheat
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Patent number: 8007699Abstract: Bicomponent fibers, methods of forming bicomponent fibers and articles formed from bicomponent fibers are described herein. The bicomponent fibers generally include a sheath component and a core component, wherein the sheath component consists essentially of a first metallocene polypropylene and the core component consists essentially of a second metallocene polypropylene.Type: GrantFiled: August 20, 2008Date of Patent: August 30, 2011Assignee: Fina Technology, Inc.Inventors: John Bieser, Guillaume Pavy, Hughes Haubruge, Alain Sandaert, William R. Wheat
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Publication number: 20110081818Abstract: 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: ApplicationFiled: February 19, 2009Publication date: April 7, 2011Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: John Bieser, Guillaume Pavy, Hugues Haubruge, Alain Standaert, William Rusty Wheat
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Publication number: 20110081817Abstract: The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved mechanical properties. In particular, the present invention relates to fibers comprising a metallocene polypropylene 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 nonwoven of the present invention are characterized by improved properties, in particular improved mechanical properties, when compared to the prior art fibers and nonwovens.Type: ApplicationFiled: February 19, 2009Publication date: April 7, 2011Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: John Bieser, Guillaume Pavy, Hugues Haubruge, Alain Standaert, William Rusty Wheat
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Publication number: 20110059668Abstract: The present invention relates to fibers, in particular to as-spun fibers, having an improved bonding performance. In particular, the present invention relates to as-spun fibers comprising a metallocene random copolymer of propylene and one or more comonomers. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and nonwovens of the present invention are characterized by a wider bonding window as the prior art fibers and nonwovens.Type: ApplicationFiled: February 19, 2009Publication date: March 10, 2011Applicant: TOTAL PETROCHEMICAL RESEARCH FELUYInventors: John Bieser, Guillaume Pavy, Hugues Haubruge, Alain Standaert, William Rusty Wheat
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Publication number: 20100087602Abstract: A method comprising contacting a polypropylene, an acrylate-containing compound, and an initiator to form a composition, and reactive extruding the composition to form a polymer blend. A method comprising contacting a polypropylene, a multi-functional acrylate monomer, and an initiator to form a composition, reactive extruding the composition to form a reactive extruded composition, and forming the reactive extruded composition into a film wherein the reactive extruded composition has a melt flow rate that is reduced by equal to or greater than 5% when compared to neat polypropylene.Type: ApplicationFiled: October 8, 2008Publication date: April 8, 2010Applicant: FINA TECHNOLOGY, INC.Inventors: Fengkui Li, Ryan L. Albores, John Bieser
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Publication number: 20100047571Abstract: Bicomponent fibers, methods of forming bicomponent fibers and articles formed from bicomponent fibers are described herein. Tile bicomponent fibers generally include a sheath component and a core component, wherein the sheath component consists essentially of a first metallocene polypropylene and the core component consists essentially of a second metallocene polypropylene.Type: ApplicationFiled: August 20, 2008Publication date: February 25, 2010Applicant: Fina Technology, Inc.Inventors: John Bieser, Guillaume Pavy, Hughes Haubruge, Alain Sandaert, William R. Wheat
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Publication number: 20070197730Abstract: Polyolefin blends and processes for forming polyolefin blends are described herein. The blends generally include a polyolefin and a monomer system including triacrylate monomers. The blends may further include one or more chain transfer agents.Type: ApplicationFiled: April 26, 2007Publication date: August 23, 2007Applicant: Fina Technology, Inc.Inventors: Fengkui Li, John Bieser, Likuo Sun, Layne Lumus
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Publication number: 20070095453Abstract: The present invention pertains to carpet and method of making it. In one aspect, the carpet includes (a) a primary backing which has a face and a back surface, (b) a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing, (c) an adhesive backing, (d) an optional secondary backing adjacent to the adhesive backing, and (e) at least one homogeneously branched linear ethylene polymer. The method includes extrusion coating at least one homogeneously branched linear ethylene polymer onto the back surface of a primary backing to provide an adhesive backing. The method can include additional steps or procedures, either separately or in various combinations.Type: ApplicationFiled: November 7, 2006Publication date: May 3, 2007Inventors: Julie Brumbelow, Von Moody, Wesley Mullinax, John Bieser, James Goins, David Kelley, Lichih Peng, Robert Turley
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Publication number: 20060264574Abstract: Polyolefin blends and processes for forming polyolefin blends are described herein. Such processes generally include providing a polyolefin, providing a concentrated monomer system including a first monomer and a first portion of the polyolefin and blending the concentrated monomer system with a second portion of the polyolefin to form a modified polyolefin.Type: ApplicationFiled: July 25, 2006Publication date: November 23, 2006Applicant: Fina Technology, Inc.Inventors: John Bieser, Fengkui Li
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Patent number: 7138474Abstract: Articles of manufacture and a method of making the articles are provided. The articles of manufacture comprise CpFlu metallocene catalyzed polypropylene homopolymers and C2–C3 random copolymers having narrow molecular weight distributions and low xylene solubles (or extractables) contents. Because of a number of desirable properties, the polypropylene homopolymers and C2–C3 random copolymers may be used to prepare a wide variety of useful articles, including but not limited to cast films, such as packaging; fibers suitable for use in fabrics and carpet applications, and injection and blow molded items such as bottles.Type: GrantFiled: May 3, 2005Date of Patent: November 21, 2006Assignee: Fina Technology, Inc.Inventors: Mike McLeod, David Young, Likuo Sun, Vincent Barre, David Turner, John Bieser
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Publication number: 20060240733Abstract: A fiber comprising a propylene polymer composition is disclosed. The composition comprises a resin blend of from about 75 to about 95 weight percent of a Ziegler-Natta or metallocene catalyzed isotactic polypropylene homopolymer, and from about 95 to about 75 weight percent of a metallocene catalyzed polypropylene copolymer. In this blend the copolymer component includes a comonomer in an amount from about 0.05 to about 25 weight percent, based on the copolymer. Non-woven fabrics prepared by thermally bonding the inventive fibers show improved tensile strengths, particularly machine direction, at comparable basis weights that are at least about 5 percent higher than those of fabrics prepared using identical preparation techniques but from the isotactic polypropylene homopolymer alone.Type: ApplicationFiled: April 25, 2005Publication date: October 26, 2006Applicant: Fina Technology, Inc.Inventors: John Bieser, Mike McLeod, Darek Wachowicz
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Publication number: 20050266206Abstract: The present invention pertains to carpet and methods of making carpet. In one aspect, the carpet includes (a) a primary backing which has a face and a back surface, (b) a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing, (c) an adhesive backing, (d) an optional secondary backing adjacent to the adhesive backing, and (e) at least one homogeneously branched ethylene polymer. The method includes extrusion coating at least one homogeneously branched ethylene polymer onto the back surface of a primary backing to provide an adhesive backing. The method can include additional steps or procedures, either separately or in various combinations. Additional steps and procedures include washing or scouring the primary backing and fibers prior to the extrusion step, and utilizing implosion agents. The preferred homogeneously branched ethylene polymer is a substantially linear ethylene polymer.Type: ApplicationFiled: July 29, 2005Publication date: December 1, 2005Inventors: John Bieser, Joseph Dibbern, Charles Diehl, James Goins, David Kelley, Rexford Maugans, Osborne McKinney, Lichih Peng, Robert Turley