Abstract: Fibrous filtration media and method of making the same are provided. According to preferred embodiments, the filtration media includes an embossed wet-laid hot area-calendered nonwoven fibrous web which includes synthetic staple fibers, and from about 20 wt. % to about 80 wt. %, based on total weight of the fibrous web, of bicomponent staple fibers dispersed through the fibrous web. The fibrous web exhibits dry and wet burst strengths of greater than 5 bar, usually greater than 10 bar, and more preferably greater than about 12 bar, or even greater than about 15 bar in some embodiments.
Type:
Application
Filed:
December 8, 2020
Publication date:
March 25, 2021
Applicant:
Ahlstrom-Munksjö Oyj
Inventors:
Jesse Shim, Jessica Lee, Ryan Kwon, Matthew Jeon, Lani Lee
Abstract: Decoration paper for a decorative laminate, which is inkjet printable, comprising a paper substrate comprising at least one opacifying pigment having a refractive index of greater than 2, and on at least one face of the substrate a surface treatment comprising a binder and between 0.5 and 9 g/m2 of a filler having a specific surface area of between 2 and 100 m2/g and a refractive index of less than or equal to 2.
Abstract: 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.
Abstract: A single-layer fibrous substrate comprising, by dry weight compared with the weight of the substrate: between 39.9 and 87.9% natural fibers refined to above 50° SR; between 12 and 60% nanofibrillar polysaccharide; and between 0.1 and 4% of at least one retention agent.
Abstract: The invention relates to transfer paper for sublimation printing, comprising a fibrous substrate, said transfer paper having one or more cationic agents on at least one face thereof, deposited on the fibrous substrate by means of surface treatment, the amount of cationic agent(s) being greater than or equal to 8% by dry weight of the total dry weight of the compound(s) added to the fibrous substrate by means of the surface treatment.
Abstract: 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:
Grant
Filed:
October 30, 2015
Date of Patent:
September 8, 2020
Assignee:
Ahlstrom-Munksjö Oyj
Inventors:
Jesse Shim, Kevin Kim, Ryan Kwon, Jinny Kim, Jamie Byeon, David Alan Topolenski, Kevin Ray Townsend
Abstract: A method for producing a cellulose and/or synthetic fibre-based support of which at least one surface is coated with a layer containing at least one water-soluble polymer comprising hydroxyl or primary-secondary amino functional groups, at least some of which have been functionalized beforehand with at least one organic compound comprising at least one epoxy functional group, and at least one R1 group wherein R1 is a vinyl functional group or at least one Si(R2)3 functional group and wherein R2=hydrogen atom, hydroxyl, alkoxy, alkyl, and combinations thereof.
Abstract: 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:
Application
Filed:
March 20, 2020
Publication date:
July 9, 2020
Applicant:
Ahlstrom-Munksjö Oyj
Inventors:
Santosh Chavan, Praveen JANA, Anne VISKARI
Abstract: Blood separation media include a fibrous web formed by 50 to 99 parts by weight of glass microfibers, and 1 to 50 parts by weight of fibrillated fibers; a polymeric, hydrophilic binder; a wetting agent; and a salt. The binder covers at least a part of the glass microfibers, and the web is further impregnated with a wetting agent and it contains a salt which is capable of crenating red blood cells. The pore size of the media is smaller than the average pore size of red blood cells. Compared to conventional separation media, the invention will improve efficiency of the separation of the red blood cells from the plasma and increase the speed and volume of the separated material. The present invention also provides for a decrease in lysing of the red blood cells during the filtration process which gives improved purity of the material.
Abstract: A wall covering, a method of producing it and a method of covering a wall. The wall covering comprises a planar substrate, such as a nonwoven base substrate, having a front, and a back facing opposite the front. There is a barrier layer on the back of the substrate and an adhesive layer superimposed on the barrier layer. The adhesive layer comprises a first polymer component, a second polymer component, the first polymer component being a non crosslinked polymer and said second polymer component being a crosslinked polymer exhibiting properties of superabsorbency. The adhesive exhibits when exposed to water, a strength sufficient for binding to a wall substrate and a glide resistance low enough for allowing repositioning of the wall cover by sliding the wallcover on the wall without having to lift it up over a period of time of at least 5 minutes.
Type:
Grant
Filed:
May 15, 2015
Date of Patent:
June 16, 2020
Assignee:
Ahlstrom-Munksjö Oyj
Inventors:
Douglas McKee Benton, Erkki Laiti, Hootan Farhat, Noah Tremblay, Madeline Vara, Xinhua Li, Olivier Schueller
Abstract: A cellulose fiber-based substrate, at least one side of which is coated with an aqueous mixture composed of: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, b) at least one lactone substituted with at least one linear or branched and/or cyclic C8-C30 hydrocarbon chain which may contain heteroatoms, c) at least one crosslinking agent. A method of production and use thereof.
Abstract: Gypsum board having a core, said core having at least one side covered with a non-woven fabric; characterized in that the inner side of the non-woven fabric, which is in contact with the core of the gypsum board, has a surface roughness Ra of from 25 to 60 micrometers, preferably from 25 to 50 micrometers, advantageously from 25 to 40 micrometers.
Type:
Grant
Filed:
December 26, 2012
Date of Patent:
May 26, 2020
Assignee:
Ahlstrom-Munksjö Oyj
Inventors:
Emmanuel Faynot, Marc Berlioz, Samuel Merlet, Claude Leclercq
Abstract: A compostable lid for sealing a capsule containing coffee in particular, consisting of a multilayer article comprising at least: a non-woven, the fibers of which contain at least 50% by weight of biodegradable fibers, a support consisting of a vegetable parchment, at least one oxygen barrier layer.
Abstract: 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:
Grant
Filed:
April 3, 2019
Date of Patent:
March 31, 2020
Assignee:
Ahlstrom-Munksjö Oyj
Inventors:
Santosh Chavan, Praveen Jana, Anne Viskari
Abstract: The present invention relates to a filter medium being at least formed of a pre-filter substrate laminated with a fine-filter substrate by means of a third binder, wherein the pre-filter substrate comprises synthetic fibers and a first binder, the pre-filter substrate working as a combined surface and depth filter, and the fine-filter substrate comprises at least a second binder and one of synthetic fibers and inorganic fibers.
Abstract: A method for manufacturing 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 20% to 90% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when would into a roll and to permit further processing.
Abstract: A cellulose and/or synthetic fibre-based support of which at least one surface is coated with a layer containing at least one water-soluble polymer comprising hydroxyl or primary-secondary amino functional groups, at least some of which have been functionalized beforehand with at least one organic compound comprising at least one epoxy functional group, and at least one R1 group wherein R1 is a vinyl functional group or at least one Si(R2)3 functional group and wherein R2=hydrogen atom, hydroxyl, alkoxy, alkyl, and combinations thereof.
Abstract: Decoration paper for a decorative laminate, which is inkjet printable, comprising a paper substrate comprising at least one opacifying pigment having a refractive index of greater than 2, and on at least one face of the substrate a surface treatment comprising a binder and between 0.5 and 9 g/m2 of a filler having a specific surface area of between 2 and 100 m2/g and a refractive index of less than or equal to 2.