Patents Assigned to Ahlstrom
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Publication number: 20250050257Abstract: Fibrous filtration media and methods of making and using the same are provided whereby the media includes a wet-laid nonwoven fibrous web having from about 20 wt. % to about 80 wt. %, based on total weight of fibrous web, of bicomponent staple O1 fibers, and from about 10 wt. % to about 50 wt. %, based on total weight of the fibrous web, of fibrillated lyocell staple fibers. The fibrous web exhibits a wet burst strength of greater than 3 bar, for example between about 3 bar to about 6 bar and is especially suitable eqi for use in filtering process fluids (e.g., water) associated with wire electron discharge machining (WEDM).Type: ApplicationFiled: October 31, 2024Publication date: February 13, 2025Applicant: Ahlstrom OyjInventors: Jesse SHIM, Melissa KANG, Jun KIM, Xiling ZENG, Kauter LIU
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Patent number: 12162659Abstract: Compostable lid for sealing a beverage capsule, composed of a multi-layer complex comprising at least: —a non-woven material containing fibres, at least 50% of which by weight are polylactic acid fibres (PLA), —a film containing a polyhydroxyalcanoate (PHA) polymer other than PLA.Type: GrantFiled: September 4, 2019Date of Patent: December 10, 2024Assignee: AHLSTROM OYJInventors: Florence Vidal, Mireille Roux, Gianmaria Pavan
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Patent number: 12146267Abstract: This invention relates to a compostable cellulose-based paper having an oxygen transmission rate of less than 10 cm3/(m2 day), when determined at 23° C. and 50% relative humidity, the compostable cellulose-based paper comprising a continuous cellulosic fiber matrix that comprises native cellulosic fibers and non-fibrous cellulosic material, wherein the content of the non-fibrous cellulosic material in the continuous cellulosic fiber matrix is of from 15 to 50 wt. %.Type: GrantFiled: November 6, 2020Date of Patent: November 19, 2024Assignee: AHLSTROM OYJInventors: Noel Cartier, Hervé Planchard
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Patent number: 12134053Abstract: Fibrous filtration media and methods of making and using the same are provided whereby the media includes a wet-laid nonwoven fibrous web having from about 20 wt. % to about 80 wt. %, based on total weight of fibrous web, of bicomponent staple fibers, and from about 10 wt. % to about 50 wt. %, based on total weight of the fibrous web, of fibrillated lyocell staple fibers. The fibrous web exhibits a wet burst strength of greater than 3 bar, for example between about 3 bar to about 6 bar and is especially suitable for use in filtering process fluids (e.g., water) associated with wire electron discharge machining (WEDM).Type: GrantFiled: April 16, 2019Date of Patent: November 5, 2024Assignee: Ahlstrom OyjInventors: Jesse Shim, Melissa Kang, Jun Kim, Xiling Zeng, Kauter Liu
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Patent number: 12122174Abstract: The present disclosure relates to a transfer paper for sublimation printing comprising a fibrous substrate and an ink-receiving layer ink-receiving layer, wherein the ink-receiving layer comprises a cationic inorganic component, a cationic organic component or both in an amount of from 10 to 90 wt. %, optionally a filler in an amount of up to 75 wt. %, a hydrophilic binder in an amount of from 5 to 50 wt. %, and a hydrophobic binder in an amount of from 5 to 50 wt. %, based on the total weight of the ink-receiving layer. The disclosure also provides a method for preparing a transfer paper for sublimation printing, its use in a method for preparing a printed transfer paper, the printed transfer paper, its use in a method for decorating an article by sublimation and the decorated article.Type: GrantFiled: November 4, 2022Date of Patent: October 22, 2024Assignee: AHLSTROM OYJInventors: Alexandre Decompte, Marco Aversa
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Method of manufacturing a graphene/graphehe oxide layer and a graphene/graphehe oxide-coated support
Patent number: 12122677Abstract: There is provided a method of manufacturing a graphene/graphene oxide layer comprising the steps of: providing a suspension of graphene/graphene oxide in a suspension liquid, applying the suspension on a support, heating the suspension and the support to evaporate liquid to form a layer of graphene/graphene oxide on the support, subjecting the graphene/graphene oxide layer and the support to pressure, and subjecting the graphene/graphene oxide layer to annealing process.Type: GrantFiled: February 15, 2019Date of Patent: October 22, 2024Assignee: AHLSTROM OYJInventors: Göran Bolin, Erkki Laiti, Eric Rousset -
Patent number: 12116731Abstract: This invention relates to a compostable cellulose-based paper having an oxygen transmission rate of less than 10 cm3/(m2 day), when determined at 23° C. and 50% relative humidity, the compostable cellulose-based paper comprising a continuous cellulosic fiber matrix that comprises native cellulosic fibers and non-fibrous cellulosic material, wherein the content of the non-fibrous cellulosic material in the continuous cellulosic fiber matrix is of from 15 to 50 wt. %.Type: GrantFiled: November 6, 2020Date of Patent: October 15, 2024Assignee: AHLSTROM OYJInventors: Noel Cartier, Hervé Planchard
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Publication number: 20240316483Abstract: A self-cleaning filtration media for use in hydrocarbon fluid filtration applications has a first layer on an upstream side and a second layer on a downstream side of the self-cleaning filtration media. The first layer is composed of polyethersulfone nanofibers having a diameter of 50-1000 nm (0.05-1 micron) and a basis weight of at least 1 gsm. The second layer is a nonwoven substrate suitable for filtration applications. The self-cleaning filtration media exhibits a dust holding capacity of at least 6 mg/cm2 and a filtration efficiency of greater than 90% for 4 micron particles when the self-cleaning filtration media is tested according to ISO 19438 for fuel filtration and according to ISO 4548-12 for oil filtration.Type: ApplicationFiled: May 30, 2024Publication date: September 26, 2024Applicant: Ahlstrom OyjInventors: Jesse SHIM, Kevin KIM, Ryan KWON, Jayden BAE, Patrick YEO
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Patent number: 12030006Abstract: Fibrous filtration media for hot oil filtration includes a nonwoven fibrous web containing synthetic fibers and at least about 15 wt. %, based on total weight of the fibrous web, of a binder component selected from thermoset binder resins and/or binder fibers. The synthetic fibers of the fibrous web will contain from about 2 wt. % to about 65 wt. %, for example between about 10 wt. % to about 50 wt. %, based on total weight of fibers in the fibrous web, of thermoplastic synthetic microfibers having an average diameter of less than 5 ?l?l. The synthetic fibers are bonded together with the binder component to form the fibrous web which is capable of forming a self-supporting, pleated oil filter media which retains pleats upon contact with oil having a temperature in a range encountered in an internal combustion engine.Type: GrantFiled: November 15, 2022Date of Patent: July 9, 2024Assignee: Ahlstrom OyjInventors: David Alan Topolenski, Crawford Garland Arrington, IV
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Patent number: 12023610Abstract: A self-cleaning filtration media for use in hydrocarbon fluid filtration applications has a first layer on an upstream side and a second layer on downstream side of the self-cleaning filtration media. The first layer is composed of polyethersulfone nanofibers having a diameter of 50-1000 nm (0.05-1 micron) and a basis weight of at least 1 gsm. The second layer is a nonwoven substrate suitable for filtration applications. The self-cleaning filtration media exhibits a dust holding capacity of at least 6 mg/cm2 and a filtration efficiency of greater than 90% for 4 micron particles when the self-cleaning filtration media is tested according to ISO 19438 for fuel filtration and according to ISO 4548-12 for oil filtration.Type: GrantFiled: August 22, 2016Date of Patent: July 2, 2024Assignee: Ahlstrom OyjInventors: Jesse Shim, Kevin Kim, Ryan Kwon, Jayden Bae, Patrick Yeo
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Patent number: 12023612Abstract: A filtration media with improved filtration, strength, tear resistance and air permeability in the form of a relatively thin and lightweight wet-laid fibrous web that has a wet Mullen ratio of 60% to 80% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when wound into a roll and to permit further processing without the media becoming too brittle. The filtration media comprises a blend of cellulose and synthetic fibers having a weight percent of 81 wt % to 87 wt % of a weight of the media and a resin binder having a weight of 13 wt % to 19 wt % (preferably about 16 wt %) of the weight of the media.Type: GrantFiled: November 22, 2021Date of Patent: July 2, 2024Assignees: AHLSTROM OYJ, DONALDSON COMPANY, INC.Inventors: Kevin R. Schouweiler, Kent Williamson, Kristin Amsden, Steven D. Schmeichel
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Patent number: 12012352Abstract: The invention relates to a fibrous mat facer for preparing a gypsum board, to a gypsum board comprising said mat facer and to a system comprising said gypsum board. The fibrous mat comprises at least one ply of a non-woven fabric, and a binder composition, wherein the binder composition represents from 10 to 40 wt % of the total weight of the mat. The binder composition comprises a copolymer comprising a co-monomer unit of a vinyl ester of an alpha branched aliphatic monocarboxylic acid, said copolymer being present in an amount from 25 to 100 wt % of the binder composition weight.Type: GrantFiled: October 6, 2015Date of Patent: June 18, 2024Assignee: AHLSTROM OYJInventors: Emmanuel Faynot, Marc Berlioz, Samuel Merlet, Claude Leclercq
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Patent number: 11993449Abstract: A compostable lid intended to seal a beverage capsule is provided. The lid is composed of a multilayer complex successively comprising a non-woven material wherein at least 50% by weight of the fibers are composed of polylactic acid (PLA), an adhesive layer suitable for coming into contact with food, and a support layer composed of a vegetable parchment.Type: GrantFiled: May 15, 2023Date of Patent: May 28, 2024Assignee: AHLSTROM OYJInventors: Valerio Miozzo, Hervé Planchard, Florence Vidal, Mireille Roux
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Patent number: 11794985Abstract: A compostable lid intended to seal a beverage capsule is provided. The lid is composed of a multilayer complex successively comprising a non-woven material wherein at least 50% by weight of the fibers are composed of polylactic acid (PLA), an adhesive layer suitable for coming into contact with food, and a support layer composed of a vegetable parchment.Type: GrantFiled: April 28, 2017Date of Patent: October 24, 2023Assignee: AHLSTROM OYJInventors: Valerio Miozzo, Hervé Planchard, Florence Vidal, Mireille Roux
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Patent number: 11787215Abstract: The invention relates to transfer paper for sublimation printing, having one or more alkaline earth salts on at least one face thereof.Type: GrantFiled: January 10, 2018Date of Patent: October 17, 2023Assignee: AHLSTROM OYJInventor: Thierry Mayade
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Patent number: 11684880Abstract: A fibrous media suitable for an oil filter comprising a fibrous web formed from synthetic fibers; optionally at least one additive, and a thermoset binder present at a concentration of at least 15 wt.-% by weight of the fibrous web and/or at least one binder fiber, wherein the synthetic fibers comprise up to 30 wt.-%, preferably up to 20 wt.-%, glass fibers, based on the total weight of the fibers. The fibers are bonded with the thermoset binder and/or the at least one binder fiber to form a web; and the fibrous media is capable of forming a self-supporting, pleated oil filter media which is capable of retaining pleats upon contact with oil having a temperature in the range encountered in a combustion engine.Type: GrantFiled: July 31, 2020Date of Patent: June 27, 2023Assignee: Ahlstrom OyjInventors: Jesse Shim, Kevin Kim, Ryan Kwon, Jinny Kim, Jamie Byeon, David Alan Topolenski, Kevin Ray Townsend
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Patent number: 11649382Abstract: A biodegradable cellulose fiber-based substrate, at least one side of which is coated with a release coating including: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, and b) at least one lactone substituted with at least one linear or branched and/or cyclic C8-C30 hydrocarbon chain which may contain heteroatoms. The biodegradable substrate is certified biodegradable in accordance with EN 13432. A method of production thereof is also disclosed.Type: GrantFiled: June 8, 2020Date of Patent: May 16, 2023Assignee: Ahlstrom OyjInventors: Menno Dufour, Violaine Durand
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Publication number: 20230081040Abstract: Fibrous filtration media for hot oil filtration includes a nonwoven fibrous web containing synthetic fibers and at least about 15 wt. %, based on total weight of the fibrous web, of a binder component selected from thermoset binder resins and/or binder fibers. The synthetic fibers of the fibrous web will contain from about 2 wt. % to about 65 wt. %, for example between about 10 wt. % to about 50 wt. %, based on total weight of fibers in the fibrous web, of thermoplastic synthetic microfibers having an average diameter of less than 5 ?l?l. The synthetic fibers are bonded together with the binder component to form the fibrous web which is capable of forming a self-supporting, pleated oil filter media which retains pleats upon contact with oil having a temperature in a range encountered in an internal combustion engine.Type: ApplicationFiled: November 15, 2022Publication date: March 16, 2023Applicant: Ahlstrom-Munksjö OyjInventors: David Alan TOPOLENSKI, Crawford Garland ARRINGTON
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Patent number: 11518152Abstract: A breathable barrier fabric that is heat sealable and minimizes lint generation without impacting the fabric's overall breathability, comfort and barrier protection, and that can be used to manufacture Helmke Category II or better cleanroom garments suitable for use in ISO Class 3 cleanroom environments and other hygienic applications. The breathable barrier fabric has a composite laminate structure including an inner monolithic film layer made from a breathable polymer bonded to first and second outer spunbond layers comprising thermoplastic bicomponent fibers each having an outer glazed surface where the thermoplastic bicomponent fibers are at least partially flattened.Type: GrantFiled: January 23, 2018Date of Patent: December 6, 2022Assignee: AHLSTROM-MUNKSJÖ OYJInventors: Douglas Benton, Vamsi Krishna Jasti
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Publication number: 20220362695Abstract: The present invention relates to a filter medium comprising a substrate and a fine fiber layer on top of the substrate, wherein the substrate comprises a first layer comprising first fibers having a first average diameter and a first maximum fiber length; a second layer comprising second fibers having a second average diameter and a second maximum fiber length; and a third layer comprising third fibers having a third average diameter and a third maximum fiber length; wherein the boundary area between the first and the second layer forms a first blended area comprising first and second fibers; and the boundary area between the second and the third layer forms a second blended area comprising second and third fibers; and wherein the first and the third average diameters are each larger than the second average diameter.Type: ApplicationFiled: August 1, 2022Publication date: November 17, 2022Applicant: Ahlstrom-Munksjö OyjInventors: Santosh CHAVAN, Praveen JANA, Anne VISKARI