Patents by Inventor Sebastian Sommer
Sebastian Sommer 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: 11383481Abstract: A laminate is made by first making by melt-blowing or spunbonding of multicomponent, thermoplastic, and endless filaments a first nonwoven layer lying generally in a plane and having a predetermined shrinkage capacity or potential parallel to the plane and making of thermoplastic and endless filaments a second nonwoven layer also lying generally in a respective plane and having a shrinkage capacity or potential that is smaller than that of the first nonwoven layer. The two layers are directly juxtaposed flatly on each other, and the directly juxtaposed first and second layer are bonded together only at bonded regions while leaving an array of unbonded regions distributed over a surface of the two bonded-together nonwoven layers. Then only the first nonwoven layer is shrunk so that the second layer bunches in the unbonded regions and is there raised transverse to a plane of the bonded-together layers.Type: GrantFiled: January 9, 2017Date of Patent: July 12, 2022Assignees: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK, PFNONWOVENS HOLDING S.R.OInventors: Sebastian Sommer, Michael Maas, Claudio Cinquemani, Markus Jansen, Nicolas Quick
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Publication number: 20220194050Abstract: A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.Type: ApplicationFiled: March 15, 2022Publication date: June 23, 2022Inventors: Tobias WAGNER, Sebastian SOMMER, Patrick BOHL, Andreas ROESNER, Hans-Georg GEUS, Gerold LINKE
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Patent number: 11318712Abstract: A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.Type: GrantFiled: July 28, 2020Date of Patent: May 3, 2022Assignee: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIKInventors: Tobias Wagner, Sebastian Sommer, Patrick Bohl, Andreas Roesner, Hans-Georg Geus, Gerold Linke, Bernd Kunze
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Patent number: 11225739Abstract: An apparatus for making a nonwoven spunbond web has a spinneret for making endless filaments moving in a predetermined direction. A monomer extractor downstream from the spinneret has an upstream extractor end face directed upstream and forming a gap with a downstream spinneret end face. A cooler downstream of the extractor for the filaments has an upstream cooler end face forming with a downstream extractor end face a second gap. A stretcher downstream of the cooler for the cooled filaments has an upstream stretcher end face forming a third gap with the downstream cooler end face. The filaments are deposited on a web former by the stretcher to form the nonwoven spunbond web. A deformable seal for seals one of the gaps, and means connected to the deformable seal press the seal against the end faces forming the one gap with a variable pressure or contact face.Type: GrantFiled: March 29, 2018Date of Patent: January 18, 2022Assignee: REIFENHAEUSER GMBH & CO. KGInventors: Detlef Frey, Martin Neuenhofer, Sebastian Sommer
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Patent number: 11091861Abstract: The invention relates to a spunbonded nonwoven having crimped multicomponent fibers, wherein a first component of the multicomponent fibers consists of a first thermoplastic polymer material comprising a first thermoplastic base polymer and a second component of the multicomponent fibers consists of a second thermoplastic polymer material comprising a second thermoplastic base polymer that is different from the first base polymer. The at least one of the first polymer material or the second polymer material is a polymer blend that comprises, further to the respective base polymer, between 1 and 10 weight percent of a high melt flow rate polymer that has a melt flow rate of between 600 and 3,000 g/10 min. The fibers have a linear mass density of less than 1.5 denier. The average crimp number of the crimped multicomponent fibers is in the range of at least 5 and preferably at least 8 crimps per cm in the fiber.Type: GrantFiled: January 22, 2019Date of Patent: August 17, 2021Assignees: FIBERTEX PERSONAL CARE A/S, REIFENHAUSER GMBH & CO. KG MASCHINENFABRIKInventors: Sebastian Sommer, Morten Rise Hansen
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Publication number: 20210214858Abstract: An apparatus for making nonwoven has a spinning device for spinning continuous filaments and moving the spun filaments in a vertical travel direction along a vertical travel path and a mesh belt below the spinning device, traveling in a horizontal direction, and having a multiplicity of vertically throughgoing openings distributed generally uniformly over its surface and of which a portion are plugged. A cooler and a stretcher are provided along the path downstream of the spinning device and above the belt for cooling and stretching the filaments and depositing the cooled and stretched filaments at a predetermined deposition location on the belt. A blower underneath the belt at the deposition location aspirates air through the openings and thereby holds the deposited filaments down on the belt.Type: ApplicationFiled: March 26, 2021Publication date: July 15, 2021Inventors: Sebastian SOMMER, Tobias WAGNER, Gerold LINKE
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Publication number: 20210172104Abstract: An apparatus for making spunbond from continuous thermoplastic filaments has a spinneret for spinning the continuous filaments and advancing them in a filament-travel direction, a cooler for cooling the filaments, a stretcher for stretching the filaments, a depositing device including a foraminous belt extending in a machine direction transverse to the filament-travel direction for deposition of the filaments as a nonwoven web and conveyance away from the stretcher, a diffusor between the stretcher and the foraminous belt so that filaments and primary air from the stretcher enter into the diffusor, and a suction device for extracting air through the foraminous belt at an unobstructed extraction region underneath the diffusor outlet and having a width b in a machine direction that is greater than a width B of the diffusor outlet. The diffusor forms upstream and downstream secondary air-inlet gaps at opposite ends through which secondary air is aspirated into the diffusor.Type: ApplicationFiled: January 21, 2021Publication date: June 10, 2021Inventors: Detlef Frey, Martin Neuenhofer, Sebastian Sommer
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Patent number: 11021821Abstract: The invention relates to a method for making a spunbonded high loft nonwoven web comprising crimped multicomponent fibers, the process comprising continuously spinning the fibers, directing the fibers to a spin-belt by deflectors and/or air streams, laying down the fibers on the spinbelt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web, wherein a first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm.Type: GrantFiled: June 28, 2019Date of Patent: June 1, 2021Assignees: FIBERTEX PERSONAL CARE A/S, REIFENHAUSER GMBH & CO. KG MASCHINENFABRIKInventors: Morten Rise Hansen, Thomas Broch, Sebastian Sommer
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Patent number: 11021820Abstract: The invention relates to a fabric comprising at least one high loft spunbond nonwoven layer having crimped multicomponent fibers, wherein a first component of the multicomponent fibers comprises a first polymer A and a second component of the multicomponent fibers comprises a blend of the first polymer A and a second polymer B, wherein the melt flow rate of polymer A is at least 25% higher than the melt flow rate of polymer B and wherein the second component comprises at least 40 wt.-% of polymer B.Type: GrantFiled: May 17, 2017Date of Patent: June 1, 2021Assignees: FIBERTEX PERSONAL CARE A/S, REIFENHAUSER GMBH & CO. KG MASCHINENFABRIKInventors: Morten Rise Hansen, Thomas Broch, Sebastian Sommer
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Publication number: 20210032789Abstract: A nonwoven web is made by displacing an air-permeable mesh-belt conveyor in a horizontal travel direction and spinning and then depositing crimped continuous filaments as a web at a deposit region on the air-permeable mesh-belt conveyor. A first preconsolidation stage is provided downstream of the deposit region and a second preconsolidation separated by a suction gap from the first stage. Air is drawn air through the web and the conveyor at the deposit region at a first predetermined speed, the first and second consolidation stages at a second and third predetermined speeds, and at the suction gap either not at all or at a fourth predetermined equal to at most substantially less than the second predetermined speed.Type: ApplicationFiled: July 28, 2020Publication date: February 4, 2021Inventors: Tobias WAGNER, Sebastian SOMMER, Patrick BOHL, Andreas ROESNER, Hans-Georg GEUS
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Publication number: 20210031487Abstract: A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.Type: ApplicationFiled: July 28, 2020Publication date: February 4, 2021Inventors: Tobias WAGNER, Sebastian SOMMER, Patrick BOHL, Andreas ROESNER, Hans-Georg GEUS, Gerold LINKE, Bernd KUNZE
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Publication number: 20210032788Abstract: An apparatus for making a nonwoven fabric from thermoplastic plastic filaments has an air permeable deposit conveyor having a horizontal face displaceable in a horizontal travel direction and a spinneret above the conveyor for spinning the filaments and depositing the spun filaments on the deposit conveyor in a deposit area of the conveyor as a nonwoven web for conveyance in the travel direction. An extractor beneath the conveyor draws air or process air through the deposit conveyor in the deposit area in a main extraction area below the deposit conveyor and is delimited by, relative to the travel direction, upstream and downstream suction partitions. One of the partitions has an upper edge set at a predetermined vertical spacing below the conveyor equal to between 10 mm and 250 mm.Type: ApplicationFiled: July 28, 2020Publication date: February 4, 2021Inventors: Tobias Wagner, Sebastian Sommer, Patrick Bohl, Andreas Roesner, Hans-Georg Geus
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Patent number: 10894384Abstract: A laminate is made by first non-crimping or low-crimping continuous filaments to form a first spunbond layer and preconsolidating the first spunbond layer with a heated or calendering roller. Then continuous filaments with a greater crimp than the continuous filaments of the first spunbond layer are deposited as a second spunbond layer over the first spunbond layer to create a two-layer structure. Finally, the two-layer structure of the first and second spunbond layers is consolidated such that a total thickness of the laminate is 0.15 to 3 mm, preferably 0.2 mm to 2.5 mm and especially 0.2 mm to 2 mm.Type: GrantFiled: February 2, 2016Date of Patent: January 19, 2021Assignees: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK, FIBERTEX PERSONAL CARE A/SInventors: Sebastian Sommer, Morten Rise Hansen, Mikael Staal Axelsen
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Publication number: 20190316284Abstract: The invention relates to a method for making a spunbonded high loft nonwoven web comprising crimped multicomponent fibers, the process comprising continuously spinning the fibers, directing the fibers to a spin-belt by deflectors and/or air streams, laying down the fibers on the spinbelt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web, wherein a first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm.Type: ApplicationFiled: June 28, 2019Publication date: October 17, 2019Applicants: Fibertex Personal Care A/S, Reifenhauser GmbH & Co. KG MaschinenfabrikInventors: Morten Rise Hansen, Thomas Broch, Sebastian Sommer
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Patent number: 10435829Abstract: The invention relates to a method for making a spunbonded high loft nonwoven web comprising crimped multicomponent fibers, the process comprising continuously spinning the fibers, directing the fibers to a spin-belt by deflectors and/or air streams, laying down the fibers on the spinbelt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web, wherein a first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm.Type: GrantFiled: May 17, 2017Date of Patent: October 8, 2019Assignees: Fibertex Personal Care A/S, Reifenhauser GmbH & Co. KG MaschinenfabrikInventors: Morten Rise Hansen, Thomas Broch, Sebastian Sommer
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Publication number: 20190233994Abstract: A spunbond nonwoven laminate has a stack of at least two and at most four spunbond nonwoven layers each formed by or consisting of crimped continuous filaments. A degree of crimping of the filaments in each of the spunbond nonwoven layers is different from a degree of crimping in each of the other spunbond nonwoven layers and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments each having at least one first plastic component and at least one second plastic component with each of the plastic components being present in the respective filament in a proportion of at least 10 wt %.Type: ApplicationFiled: December 1, 2018Publication date: August 1, 2019Inventors: Sebastian Sommer, Tobias Wagner, Gerold Linke, Patrick Bohl, Morton Rise Hansen
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Publication number: 20190233993Abstract: The invention relates to a spunbonded nonwoven having crimped multicomponent fibers, wherein a first component of the multicomponent fibers consists of a first thermoplastic polymer material comprising a first thermoplastic base polymer and a second component of the multicomponent fibers consists of a second thermoplastic polymer material comprising a second thermoplastic base polymer that is different from the first base polymer. The at least one of the first polymer material or the second polymer material is a polymer blend that comprises, further to the respective base polymer, between 1 and 10 weight percent of a high melt flow rate polymer that has a melt flow rate of between 600 and 3000 g/10 min. The fibers have a linear mass density of less than 1.5 denier. The average crimp number of the crimped multicomponent fibers is in the range of at least 5 and preferably at least 8 crimps per cm in the fiber.Type: ApplicationFiled: January 22, 2019Publication date: August 1, 2019Applicants: Fibertex Personal Care A/S, Reifenhauser GmbH & Co. KG MaschinenfabrikInventors: Sebastian SOMMER, Morten Rise HANSEN
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Publication number: 20190194826Abstract: The invention relates to a spunbonded fabric of endless filaments made of thermoplastic plastic, wherein the endless filaments are designed as multi-component filaments having a core/sheath configuration. The filaments contain at least one lubricant, the lubricant being present exclusively or at least to 90 wt. % in the core component. The mass ratio between the core component and the sheath component is 65:35 to 80:20. The proportion of the lubricant is 250 to 5500 ppm with respect to the total filament.Type: ApplicationFiled: May 17, 2017Publication date: June 27, 2019Inventors: Morten Rise HANSEN, Sebastian SOMMER
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Publication number: 20190136426Abstract: The invention relates to a nonwoven laminate fabric comprising a meltblown nonwoven layer sandwiched between first and second spundbond nonwoven layers, wherein at least one of the spundbond layers is a high loft spunbond nonwoven layer comprising or consisting of crimped multicomponent fibers.Type: ApplicationFiled: May 18, 2017Publication date: May 9, 2019Inventors: Morten Rise HANSEN, Sebastian SOMMER, Wong Kuan HWA, Tan Wan WEI
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Publication number: 20180282926Abstract: An apparatus for making spunbond from continuous thermoplastic filaments has a spinneret for spinning the continuous filaments and advancing them in a filament-travel direction, a cooler for cooling the filaments, a stretcher for stretching the filaments, a depositing device including a foraminous belt extending in a machine direction transverse to the filament-travel direction for deposition of the filaments as a nonwoven web and conveyance away from the stretcher, a diffusor between the stretcher and the foraminous belt so that filaments and primary air from the stretcher enter into the diffusor, and a suction device for extracting air through the foraminous belt at an extraction region underneath the diffusor outlet and having a width b in a machine direction that is greater than a width B of the diffusor outlet. The diffusor forms upstream and downstream secondary air-inlet gaps at opposite ends through which secondary air is aspirated into the diffusor.Type: ApplicationFiled: March 29, 2018Publication date: October 4, 2018Inventors: Detlef Frey, Martin Neuenhofer, Sebastian Sommer