Patents by Inventor Stefanie Streich
Stefanie Streich 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: 11623427Abstract: A method of preparing a cleaning wipe having a high sustainable polymer content is provided. The cleaning wipe includes a fibrous layer having fibers of a melt spinnable sustainable polymer; and an abrasive layer having meltblown fibers of a melt spinnable sustainable polymer. The abrasive layer defining an outer surface of the cleaning wipe, and includes a plurality of abrasive structures formed thereon in which the abrasive structures are formed from conglomerated fibers, meltblown shot, fibers having average diameters greater than 4 micrometers and fibers having a tortuous geometry. The melt spinnable sustainable polymer content of the cleaning wipe is at least 50 weight % by weight of the cleaning wipe. A method of preparing the cleaning wipe is also provided.Type: GrantFiled: June 28, 2022Date of Patent: April 11, 2023Assignees: FITESA GERMANY GMBH, FITESA SIMPSONVILLE, INC.Inventors: Gary Drews, Elena Novarino, Stefanie Streich, Jason Hamilton, Stephen Chester, Alfredo Izzo, David Newkirk
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Patent number: 11591730Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: GrantFiled: October 30, 2018Date of Patent: February 28, 2023Assignees: Fitesa Nonwoven, Inc., Fitesa Germany GmbHInventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Publication number: 20220332086Abstract: A method of preparing a cleaning wipe having a high sustainable polymer content is provided. The cleaning wipe includes a fibrous layer having fibers of a melt spinnable sustainable polymer; and an abrasive layer having meltblown fibers of a melt spinnable sustainable polymer. The abrasive layer defining an outer surface of the cleaning wipe, and includes a plurality of abrasive structures formed thereon in which the abrasive structures are formed from conglomerated fibers, meltblown shot, fibers having average diameters greater than 4 micrometers and fibers having a tortuous geometry. The melt spinnable sustainable polymer content of the cleaning wipe is at least 50 weight % by weight of the cleaning wipe. A method of preparing the cleaning wipe is also provided.Type: ApplicationFiled: June 28, 2022Publication date: October 20, 2022Applicants: FITESA GERMANY GMBH, FITESA SIMPSONVILLE, INC.Inventors: Gary DREWS, Elena Novarino, Stefanie Streich, Jason Hamilton, Stephen Chester, Alfredo Izzo, David Newkirk
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Patent number: 10240268Abstract: Process of preparing meltblown fibers that are reclaimed from a starting material of a polypropylene component and a sustainable polymer component is provided. In one aspect, the method includes blending starting fibers of a polypropylene component and a sustainable polymer component under heat to form a molten stream, and then vis-breaking the components to obtain a polymeric blend that is suitable for use in meltblowing applications. The molten stream of the vis-broken polymer components are extruded through a meltblowing die to form a stream of meltblown fibers that is then collected on a collection surface to form a coherent meltblown web. The starting material may be bicomponent filaments having a sheath-core configuration in which the polypropylene component is oriented in the sheath and the sustainable polymer component is oriented in the core of the filaments. The invention is also directed to meltblown fibers and webs prepared from the process.Type: GrantFiled: January 23, 2015Date of Patent: March 26, 2019Assignees: FITESA SIMPSONVILLE, INC., FITESA GERMANY GMBHInventors: Elena Novarino, David D. Newkirk, Helmut Hartl, Stefanie Streich
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Publication number: 20190062970Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: ApplicationFiled: October 30, 2018Publication date: February 28, 2019Applicants: Fitesa Nonwoven, Inc., Fitesa Germany GmbHInventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Patent number: 10156031Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: GrantFiled: July 21, 2015Date of Patent: December 18, 2018Assignees: FITESA GERMANY GMBH, FITESA NONWOVEN, INC.Inventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Publication number: 20180327948Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: ApplicationFiled: July 18, 2018Publication date: November 15, 2018Inventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Patent number: 9994982Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: GrantFiled: March 12, 2014Date of Patent: June 12, 2018Assignees: FITESA GERMANY GMBH, FITESA NONWOVEN, INC.Inventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Publication number: 20160333509Abstract: Process of preparing meltblown fibers that are reclaimed from a starting material of a polypropylene component and a sustainable polymer component is provided. In one aspect, the method includes blending starting fibers of a polypropylene component and a sustainable polymer component under heat to form a molten stream, and then vis-breaking the components to obtain a polymeric blend that is suitable for use in meltblowing applications. The molten stream of the vis-broken polymer components are extruded through a meltblowing die to form a stream of meltblown fibers that is then collected on a collection surface to form a coherent meltblown web. The starting material may be bicomponent filaments having a sheath-core configuration in which the polypropylene component is oriented in the sheath and the sustainable polymer component is oriented in the core of the filaments. The invention is also directed to meltblown fibers and webs prepared from the process.Type: ApplicationFiled: January 23, 2015Publication date: November 17, 2016Inventors: Elena Novarino, David D. Newkirk, Helmut Hartl, Stefanie Streich
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Publication number: 20150322605Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: ApplicationFiled: July 21, 2015Publication date: November 12, 2015Inventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Publication number: 20140276517Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Inventors: Stephen O. Chester, Albert Witarsa, Stefanie Streich, Helmut Hartl, Harald Siebner, Daniel Kong, David D. Newkirk
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Patent number: 8138107Abstract: Disclosed is a spunbonded non-woven made of polyolefin filaments having a titer <1.6 dtex, the spunbonded non-woven having a surface weight ?20 g/m2, a density ?0.06 g/cm3, a maximum tensile force of between 9.5 and 62 N in the direction of the machine and of between 4.5 and 35 N perpendicular to the direction of the machine.Type: GrantFiled: March 13, 2009Date of Patent: March 20, 2012Assignee: Fiberweb Corovin GmbHInventors: Steffen Bornemann, Markus Haberer, Stefanie Streich, Dag Fohlin
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Publication number: 20090233073Abstract: Disclosed is a spunbonded non-woven made of polyolefin filaments having a titer <1.6 dtex, the spunbonded non-woven having a surface weight ?20 g/m2, a density ?0.06 g/cm3, a maximum tensile force of between 9.5 and 62 N in the direction of the machine and of between 4.5 and 35 N perpendicular to the direction of the machine.Type: ApplicationFiled: March 13, 2009Publication date: September 17, 2009Inventors: Steffen Bornemann, Markus Haberer, Stefanie Streich, Dag Fohlin
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Patent number: D906692Type: GrantFiled: January 18, 2019Date of Patent: January 5, 2021Assignee: FITESA GERMANY GMBHInventor: Stefanie Streich