AHLSTROM CORPORATION Patent applications |
Patent application number | Title | Published |
20160023149 | METHOD OF MAKING A THIN FILTRATION MEDIA - 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. | 01-28-2016 |
20160016717 | FIBROUS SUBSTRATE CONTAINING FIBERS AND NANOFIBRILLAR POLYSACCHARIDE - A single-layer fibrous substrate comprising, by dry weight compared with the weight of the substrate:
| 01-21-2016 |
20160016101 | FILTRATION MEDIA - 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. | 01-21-2016 |
20140353263 | COALESCENCE MEDIA FOR SEPARATION OF WATER-HYDROCARBON EMULSIONS - A coalescence media for separation of water-hydrocarbon emulsions, the coalescence media comprising an emulsion-contacting sheet formed as a single dry layer from a wet-laid process using a homogenously distributed, wet-laid furnish of (a) a mixture of fibrous components of (a1) at least one type of a first group of cellulose and/or cellulose-based fibers, and (a2) at least one type of a second group of fibers selected from the group consisting of fibrillated fibers and glass microfibers, and (b) at least one non-fibrous component selected from the group consisting of (b1) a dry strength additive, and (b2) a wet strength additive. The fibrous components of the coalescence media constitute at least about 70% of the coalescence media, and includes a pore structure sufficient to coalesce water droplets having a droplet size of <3.5 μm in biodiesel blends or in surfactant stabilized water-hydrocarbon emulsions. | 12-04-2014 |
20140057093 | METHOD FOR MANUFACTURING SOFT, RESISTANT AND BULKY NONWOVEN AND NONWOVEN THUS OBTAINED - Methods for manufacturing nonwovens and nonwovens obtained by such methods are provided. Particularly, nonwovens are provided with improved tactile and absorbent characteristics, which make them suitable for use in the field of surface cleaning, personal hygiene, or formation of garments. The methods are based on the use of lobed spunbonded filaments which have been treated by a thickening apparatus. | 02-27-2014 |
20130269294 | STERILIZABLE AND PRINTABLE NONWOVEN PACKAGING MATERIALS - Sterilizable and printable, wet-laid non-woven substrate exhibiting high-strength and temperature resistance above 140° C., providing sufficient airflow to relieve pressure in a package formed from the substrate during sterilization, providing a significant barrier to penetration by bacteria and debris, and which is sealable to itself and to thermoplastic films, comprises blends of nanofibrillated lyocell fibers, microfibers, fibers having a flat, rectangular cross-section and binder fibers. | 10-17-2013 |
20130104330 | HYDRAULIC PATTERNING OF A FIBROUS, SIDED NONWOVEN WEB | 05-02-2013 |
20120261358 | SEPARATION MEDIA AND METHODS ESPECIALLY USEFUL FOR SEPARATING WATER-HYDROCARBON EMULSIONS HAVING LOW INTERFACIAL TENSIONS - Separation media, separation modules and methods are provided for separating water from a water and hydrocarbon emulsion and include a fibrous nonwoven coalescence layer for receiving the water and hydrocarbon emulsion and coalescing the water present therein as a discontinuous phase to achieve coalesced water droplets having a size of 1 mm or greater, and a fibrous nonwoven drop retention layer downstream of the coalescence layer having a high BET surface area of at least 90 m | 10-18-2012 |
20120261330 | SEPARATION MEDIA AND METHODS ESPECIALLY USEFUL FOR SEPARATING WATER-HYDROCARBON EMULSIONS HAVING LOW INTERFACIAL TENSIONS - Separation media, separation modules and methods are provided for separating water from a water and hydrocarbon emulsion and include a fibrous nonwoven coalescence layer for receiving the water and hydrocarbon emulsion and coalescing the water present therein as a discontinuous phase to achieve coalesced water droplets having a size of 1 mm or greater, and a fibrous nonwoven drop retention layer downstream of the coalescence layer having a high BET surface area of at least 90 m | 10-18-2012 |
20120183771 | FIBRE-BASED SUPPORT CONTAINING A LAYER OF A FUNCTIONALIZED WATER-SOLUBLE POLYMER, METHOD OF PRODUCTION AND USE THEREOF - 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 R | 07-19-2012 |
20120111519 | FIBROUS SUPPORT INTENDED TO BE IMPREGNATED WITH LIQUID - Fibrous support intended to be impregnated, the fibers of which are formed 100% of cellulose fibers, characterized in that it presents, before creping or embossing, a wet traction strength of over 2.4 N/15 mm in the cross-machine direction, a water absorption capacity of at least 300% and contains less than 2% dry wet strength 10 agent in comparison with the dry weight of the fibers. | 05-10-2012 |
20120043281 | SEPARATION MEDIA AND METHODS ESPECIALLY USEFUL FOR SEPARATING WATER-HYDROCARBON EMULSIONS HAVING LOW INTERFACIAL TENSIONS - Separation media, separation modules and methods are provided for separating water from a water and hydrocarbon emulsion and include a fibrous nonwoven coalescence layer for receiving the water and hydrocarbon emulsion and coalescing the water present therein as a discontinuous phase to achieve coalesced water droplets having a size of 1 mm or greater, and a fibrous nonwoven drop retention layer downstream of the coalescence layer having a high BET surface area of at least 90 m | 02-23-2012 |
20110300332 | ACOUSTIC TILE - An acoustic tile comprising a perforated support wherein one of the faces is covered on its entire surface with a nonwoven material, characterized in that the material is coated on at least one face by a photocatalytic composition comprising at least one photocatalyst agent. | 12-08-2011 |
20110147299 | COALESCENCE MEDIA FOR SEPARATION OF WATER-HYDROCARBON EMULSIONS - A coalescence media for separation of water-hydrocarbon emulsions comprises an emulsion-contacting sheet formed of: (a) at least one component of the group consisting of natural fibers, cellulose fibers, natural-based fibers, and cellulose-based fibers, at least one component of the group consisting of high-surface-area fibrillated fibers, surface-area-enhancing synthetic material, glass microfibers, and nanoceramic functionalized fibers; and (c) at least one component of the group consisting of a dry strength additive, and a wet strength additive, wherein the fibrous components of the media constitute at least about 70% of the media. In preferred embodiments, the coalescence media comprises kraft fibers, fibrillated lyocell fibers, glass microfibers or nanoceramic functionalized fibers, a wet strength additive, and a dry strength additive. Preferably, the coalescence media is formed as a single, self- supporting layer from a wet-laid process using a homogenously distributed, wet-laid furnish. It may also be formed as a multi-layer structure. | 06-23-2011 |
20110144608 | NONWOVEN BONDING PATTERNS PRODUCING FABRICS WITH IMPROVED ABRASION RESISTANCE AND SOFTNESS - A thermal bonding pattern for a nonwoven fabric possessing improved abrasion resistance while retaining softness, comprising a basket-weave pattern or other pattern having a transition area ( | 06-16-2011 |
20110084028 | SEPARATION MEDIA AND METHODS ESPECIALLY USEFUL FOR SEPARATING WATER-HYDROCARBON EMULSIONS HAVING LOW INTERFACIAL TENSIONS - Separation media, separation modules and methods are provided for separating water from a water and hydrocarbon emulsion and include a fibrous nonwoven coalescence layer for receiving the water and hydrocarbon emulsion and coalescing the water present therein as a discontinuous phase to achieve coalesced water droplets having a size of 1 mm or greater, and a fibrous nonwoven drop retention layer downstream of the coalescence layer having a high BET surface area of at least 90 m | 04-14-2011 |
20090269482 | LAYERED SECURITY MATERIAL AND METHOD OF MANUFACTURING SUCH - The present invention relates to a layered material such as paper, cardboard, or nonwoven web having a printable surface for text or graphics, composed of a base web ( | 10-29-2009 |
20090211718 | FIBROUS SUPPORT INTENDED TO BE IMPREGNATED WITH LIQUID - Fibrous support intended to be impregnated, the fibers of which are formed 100% of cellulose fibers, characterized in that it presents, before creping or embossing, a wet traction strength of over 2.4 N/15 mm in the cross-machine direction, a water absorption capacity of at least 300% and contains less than 2% dry wet strength | 08-27-2009 |
20090178970 | COALESCENCE MEDIA FOR SEPARATION OF WATER-HYDROCARBON EMULSIONS - A coalescence media for separation of water-hydrocarbon emulsions comprising an emulsion-contacting sheet formed as single dry layer from a wet-laid process using a homogenously distributed, wet-laid furnish including two or more constituents of the group consisting of: (1) up to about 80% cellulose or cellulosic fibers; (2) up to about 50% synthetic fibers; (3) up to about 60% high-surface-area fibrillated fibers; (4) up to about 70% glass microfiber; (5) up to about 80% of a surface-area-enhancing synthetic material; (6) up to about 5% of a wet-laid-paper, dry strength additive; (7) up to about 5% of a wet-laid-paper, wet strength additive; (8) up to about 30% of a strength-enhancing component; and (9) up to about 30% binder resin for the finished sheet (where percent denotes percent of dry weight of the finished sheet). | 07-16-2009 |
20090169827 | NONWOVEN MEDICAL FABRIC - A nonwoven fabric including a nonwoven web material layer having thermoplastic polymer filaments and an initial thickness Ts, and a method to make the nonwoven web fabric including embossing the nonwoven web material layer to form an embossed portion of the layer having a compressed thickness Tc that is less than Ts and an expanded portion of the layer having a thickness Te that is greater than Ts. | 07-02-2009 |
20080260600 | Building Designed For Storing Foul-Smelling Effluents - The present invention relates to an enclosed building designed to store foul-smelling effluents. The building is provided with means for introducing the effluents in the building, means for destroying, by photocatalysis, organic pollutants created during the storage of the effluents, and openings, by means of which the interior of the building is in communication with the atmosphere, the openings being provided with said destroying means. | 10-23-2008 |