Class / Patent application number | Description | Number of patent applications / Date published |
442401000 | Spun-bonded nonwoven fabric | 42 |
20080233825 | Articles Including High Modulus Fibrous Material - A composite sheet material including substantially randomly oriented high modulus fibrous material and a nonwoven web of thermoplastic fibrous material is disclosed. The composite sheet material can further include a substantially fluid impervious layer. The resultant composite sheet material can exhibit isotropic physical properties. The isotropic nature of the product can in turn improve the dimensional stability of the product, which can be useful for applications subject to multidirectional stresses, such as roofing membranes exposed to temperature variances. | 09-25-2008 |
20080242178 | Flexible Ceramic Fibers and a Process For Making Same - The present invention is generally directed to ceramic fibers, which when employed in sheets to provide flexibility and to methods for making same. In one embodiment, the present invention relates to ceramic fibers that are heat and chemical resistant, and to a method for making same. In another embodiment, the present invention relates to ceramic nanofibers and ceramic nanofiber sheets, and to a method for making same. In still another embodiment, the present invention relates to electrospun ceramic nanofibers and nanofiber sheets, products that include such fibers, and to methods of making same. | 10-02-2008 |
20080311816 | METHOD AND APPARATUS FOR STRENGTHENING A RUNNING NON-WOVEN WEB, AND A NON-WOVEN WEB - The invention relates to a method and an apparatus for strengthening a running non-woven web. For this purpose, the non-woven web is penetrated by a plurality of fluid streams. In order to create a surface structure, the fluid streams are generated by a movable nozzle beam, which is guided back and forth at a defined amplitude substantially transversely to the running direction of the non-woven web. In order to obtain enough flexibility and a sufficient volume in the non-woven web in spite of the strengthening effect, the amplitude for moving the fluid streams back and forth is selected in such a way according to the invention that the points of impact created in the non-woven web by adjacent fluid streams do not intersect an imaginary separating line in the running direction. To this avail, the amplitude of the back and forth movement of the nozzle beam is adjusted so as to be smaller than half the distance between two nozzle outlets disposed next to each other in the row. | 12-18-2008 |
20090004943 | Method and device for manufacturing splittable fibers and use thereof - The invention relates to a method and a device ( | 01-01-2009 |
20090029621 | Soft Non-Woven Fabrics - Soft filaments and spunbonded non-woven fabrics obtained therefrom, said filaments comprising a blend of a propylene copolymer or a propylene copolymer composition and an heterophasic propylene polymer composition. | 01-29-2009 |
20090075546 | DISPERSIBLE FIBROUS STRUCTURE AND METHOD OF MAKING SAME - A dispersible fibrous structure having an in-use wet tensile strength of at least about 40 g/cm; a disposable wet tensile decay of at least about 35% and a method of making the structure. The structure has at least one property selected from a group consisting of: a wet CD maximum slope of less than about 12 kg/7.62 cm, a wet CD Elongation of greater than about 50%, a low elongation CD modulus of less than about 5.0 kg/7.62 cm, and a wet CD Bending of less than about 0.05 gf cm/cm, | 03-19-2009 |
20090221206 | SPINNING APPARATUS FOR PRODUCING FINE THREADS BY SPLICING - A spinning apparatus for producing fine threads by splicing, which comprises a plurality of protruding spinneret jets disposed in a spinneret jet portion and having spinning orifices from which the spinning dopes exit as monofils and having a plurality of acceleration jets, in particular Laval jets, whose cross section reduces, only to widen downstream of the smallest cross section, which are assigned to the spinning orifices is proposed to be provided with means for feeding gas streams which surround the monofils and are accelerated by the acceleration jets. The acceleration jet, in an at least partially plate-shaped gas jet portion, is constructed as a funnel-shaped depression into which the spinneret jet reaches to form gas flow channels. Means for relative displacement of the gas jet part and of the spinneret jet part relative to one another are provided such that the flow cross section of the gas flow channels is alterable and/or the position of the smallest cross section of the acceleration jets is adjustable in relation to the spinning orifices. | 09-03-2009 |
20090311938 | EXTENSIBLE SPUNBONDED NON-WOVEN FABRICS - Impact copolymers, comprising an in-reactor blend of homopolymer polypropylene and an ethylene-propylene rubber, can be processed into spunbond non-woven fabrics. These fabrics have been shown to have increased ultimate extension without reduction in the ultimate tensile strength, as compared to conventional homopolymer polypropylene derived spunbond non-wovens. | 12-17-2009 |
20100035502 | HIGH-STRENGTH LIGHTWEIGHT NON-WOVEN FABRIC MADE OF SPUNBONDED NON-WOVEN, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF - The invention relates to a high-strength light-weight non-woven fabric made of spunbonded non-woven, particularly for use as a reinforcement or strengthening material, comprising at least one ply of melt-spun synthetic filaments, which are bonded by means of high-energy water jets, characterized in that it includes a thermally activatable binding agent, which is applied onto the ply of melt-spun filaments in the form of at least one thin layer. The invention further relates to a method for producing such a non-woven fabric. | 02-11-2010 |
20100056007 | METHOD OF SOLUTION PREPARATION OF POLYOLEFIN CLASS POLYMERS FOR ELECTROSPINNING PROCESSING INCLUDING - A process to make a polyolefin fiber which has the following steps: mixing at least one polyolefin into a solution at room temperature or a slightly elevated temperature to form a polymer solution and electrospinning at room temperature said polymer solution to form a fiber. | 03-04-2010 |
20100099321 | Process and apparatus for the production of nonwoven fabrics from extruded filaments - In an apparatus for the production of a non-woven fabric, a plurality of filaments ( | 04-22-2010 |
20100105274 | Polypropylene Fibers and Spunbond Nonwoven with Improved Properties - The present invention relates to a process for the production of polypropylene fibers and polypropylene spunbond nonwoven comprising a degradation step, wherein the melt flow of the polypropylene is increased, and a fiber or filament extrusion step. The present invention also relates to the fibers and nonwoven produced with said process and to composites and laminates comprising said fibers and nonwoven. | 04-29-2010 |
20100124864 | Extensible Nonwoven Facing Layer for Elastic Multilayer Fabrics - Disclosed is a multilayer fabric and a method of forming a multilayer fabric comprising one or more facing layers and one or more elastic layers adjacent to or sandwiched there between, the one or more facing layers comprising a polypropylene; and a propylene-α-olefin elastomer having and an MFR of less than 80 dg/min; wherein the facing layer is extensible and non-elastic and has a Handle-O-Meter value of less than 60 g and a 1% Secant Flexural Modulus of less than 1000 MPa. In certain embodiments, polyethylenes are absent from the facing layer(s). | 05-20-2010 |
20100144228 | Nanofibers Having Embedded Particles - The present invention is generally directed to, in one embodiment, a composite electrospun nanofiber being formed of a nanofiber and a particle at least partially embedded within the nanofiber, the particle having a width that is greater than the diameter of the fiber so that at least a portion of the particle is not covered by the nanofiber. | 06-10-2010 |
20100233928 | Polypropylene Spunbond Fibers and Methods for Making Same - Disclosed herein is a spunbond fiber of visbroken polypropylene having an M | 09-16-2010 |
20110028062 | BICOMPONENT FIBERS, TEXTILE SHEETS AND USE THEREOF - Disclosed are bicomponent fibers with aliphatic polyester forming a first component and a polyolefin forming a second component wherein the polyolefin contains an adjuvant improving the biodegradability of said polyolefin. Textile sheets comprising these bicomponent fibers are comparable in their mechanical properties to polyolefin based textile sheets while these are more efficiently decomposed by the action of microorganisms as polyolefin based textile sheets. | 02-03-2011 |
20110059668 | Fibers and Nonwovens with Improved Bonding Properties - The present invention relates to fibers, in particular to as-spun fibers, having an improved bonding performance. In particular, the present invention relates to as-spun fibers comprising a metallocene random copolymer of propylene and one or more comonomers. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and nonwovens of the present invention are characterized by a wider bonding window as the prior art fibers and nonwovens. | 03-10-2011 |
20110081817 | Fibers and Nonwovens with Improved Mechanical Properties - The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved mechanical properties. In particular, the present invention relates to fibers comprising a metallocene polypropylene having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwoven of the present invention are characterized by improved properties, in particular improved mechanical properties, when compared to the prior art fibers and nonwovens. | 04-07-2011 |
20110081818 | Fibers and Nonwovens with Improved Mechanical and Bonding Properties - The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved bonding performance and mechanical properties. In particular, the present invention relates to fibers comprising a metallocene random copolymer of propylene and one or more comonomers, said metallocene random copolymer having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwovens of the present invention are characterized by improved properties, in particular improved bonding performance and mechanical properties, when compared to the prior art fibers and nonwovens. | 04-07-2011 |
20110086568 | SPUNBOND NONWOVENS MADE FROM HIGH-CRYSTALLINITY PROPYLENE POLYMER - The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution M | 04-14-2011 |
20110165811 | Article Formed From Electrospinning A Dispersion - An article of fibers includes a cured compound. The fibers are formed from electrospinning a dispersion. The dispersion includes a liquid and a condensation curable compound. A content of the liquid in the dispersion is reduced such that the condensation curable compound cures. The article is formed from a method of manufacturing which includes the step of forming the dispersion. The method also includes the step of electro spinning the dispersion to reduce the content of the liquid such that the condensation curable compound cures. | 07-07-2011 |
20110217895 | Wipes - The invention relates to wipes for use on either a human or a household surface. The wipe of this invention has at least a wet layer, a dry layer and a moisture impervious layer there between. The moisture impervious layer is impermeable to all liquid leaching from the wet layer to the dry layer. | 09-08-2011 |
20110244750 | Bicomponent Spunbond Fiber and Spunbond Fabric Prepared Therefrom - Bicomponent fibers, methods of forming bicomponent fibers and articles formed from bicomponent fibers, are described herein. The bicomponent fibers generally include a sheath component and a core component, wherein the sheath component consists essentially of a first metallocene polypropylene and the core component consists essentially of a second metallocene polypropylene. | 10-06-2011 |
20120034838 | Polymeric Blends for Fiber Applications and Methods of Making the Same - Processes of forming a fiber article and articles formed therefrom are described herein. The processes generally include providing a propylene-based polymer; contacting the propylene-based polymer with polylactic acid in the presence of a reactive modifier, a non-reactive modifier or a combination thereof to form a polymeric blend, wherein the reactive modifier is selected from epoxy-functionalized polyolefins and the non-reactive modifier comprises an elastomer; and forming the polymeric blend into a fiber article. | 02-09-2012 |
20120058701 | FORMALDEHYDE-FREE PROTEIN-CONTAINING BINDERS FOR SPUNBOND PRODUCTS - One-part binder compositions are described that may include a protein and a crosslinking combination. The crosslinking combination may include at least a first crosslinking compound and a second crosslinking compound. The first and second crosslinking compounds are individually crosslinkable with each other and with the protein. Examples of the protein include soy protein. Fiber products and methods of making the fiber products are also described. The fiber products may include organic fibers, inorganic fibers, or both, in a cured thermoset binder based on solutions of the one-part binder compositions. | 03-08-2012 |
20120094567 | HYDROENGORGED SPUNMELT NONWOVENS - A hydroengorged spunmelt nonwoven formed of thermoplastic continuous fibers and a pattern of fusion bonds. The nonwoven has either a percentage bond area of less than 10 percent, or a percentage bond area of at least 10% wherein the pattern of fusion bonds is anisotropic. | 04-19-2012 |
20120164908 | MIXED FIBER SPUNBONDED NONWOVEN FABRIC, AND METHOD FOR PRODUCTION AND USE THEREOF - A mixed fiber spunbonded nonwoven fabric which comprises 90 to 10% by weight of a long fiber of thermoplastic resin (A) that has been hydrophilization-treated and 10 to 90% by weight of a long fiber of thermoplastic elastomer (B) and which has a strength ratio [the ratio of a strength at 20% of an elongation at a maximum strength (elongation at a maximum point) to the maximum strength] in at least one direction of not more than 40% and a bulk density of 0.10 to 0.40 g/cm | 06-28-2012 |
20130157537 | NONWOVEN COMPOSITE INCLUDING REGENERATED CELLULOSE FIBERS - The present invention provides a soft, bulky, and absorbent hydroentangled nonwoven including regenerated cellulose fibers and staple or wood pulp fibers and a method of making the same that includes the steps of a) placing regenerated cellulose fibers on a forming surface; b) depositing staple or wood pulp fibers on the regenerated cellulose fibers; c) hydroentangling the regenerated cellulose fibers and the staple or wood pulp fibers together to form a hydroentangled composite; d) drying the hydroentangled composite; then, e) creping the hydroentangled composite with a frothed creping solution or dispersion. | 06-20-2013 |
20130165008 | Fibers and Nonwoven Materials Prepared Therefrom - The present invention is directed to fibers, nonwoven fabrics, and nonwoven laminates comprising a blend of at least one impact copolymer and at least one propylene-based elastomer. The blends comprise from about 45 to about 85 wt % of an impact copolymer, where the impact copolymer comprises a blend of a propylene homopolymer and a copolymer comprising from about 20 to about 80 wt % propylene-derived units and from about 20 to about 80 wt % ethylene-derived units. The blends further comprise from about 15 to about 55 wt % of a propylene-based elastomer, where the propylene-based elastomer comprises from about 5 to about 25 wt % units derived from one or more C | 06-27-2013 |
20130217290 | SPINNERET FOR SPINNING THREADS, SPINNING DEVICE FOR SPINNING THREADS AND METHOD FOR SPINNING THREADS - The invention relates to a spinneret for spinning threads from a spinning mass—in the form of a melt or solution of natural or synthetic origin—comprising a rotationally symmetrical spinneret. The rotationally symmetrical spinneret inner part is surrounded at least partially by a rotationally symmetrical outer part, wherein in the longitudinal direction between the spinneret inner part and outer part an insulating chamber is formed, in which a gas, preferably air, is received in order to form an insulating gas layer. The invention further relates to a spinning device for spinning threads from a spinning mass, comprising a spinneret part and a gas nozzle part arranged at a distance from the spinneret part. A plurality of spinnerets according to the invention are inserted in the spinneret part and project from the spinneret part, facing the gas nozzle part, and the gas nozzle part comprises a plurality of gas nozzles associated with the spinnerets. The gas nozzles are designed as acceleration nozzles for a gas flow that is conducted through the respective gas nozzle and encompasses the monofilaments. Said spinnerets are used in a method for producing spunbonded materials or yarns from polymers of natural or synthetic origin, in order to build up said materials or yarns from extremely fine threads having an average thread diameter of less than 1 μm. The threads from the individual spinnerets can also be collected using conventional winding mechanisms to form yarns on bobbins. | 08-22-2013 |
20130244527 | FLAME RETARDANT FIBERS, YARNS, AND FABRICS MADE THEREFROM - Disclosed are technical fibers and yarns made with partially aromatic polyamides and non-halogenated flame retardant additives. Fabrics made from such fibers and yarns demonstrate superior flame retardancy over traditional flame retardant nylon 6,6 fabrics. Further, the disclosed fibers and yarns, when blended with other flame retardant fibers, do not demonstrate the dangerous “scaffolding effect” common with flame retardant nylon 6,6 blended fabrics. | 09-19-2013 |
20130309931 | METHOD FOR PRODUCING SPUN-BONDED NONWOVEN FABRIC AND SPUN-BONDED NONWOVEN FABRIC - The method of producing a spunbond nonwoven fabric promotes the bleed out of the additive, which has pleasant texture such as tactile feel and excellent flexibility. The spunbond nonwoven fabric is obtained by this method. Specifically, (1) the method of producing a spunbond nonwoven fabric includes annealing a spunbond nonwoven fabric formed by using a crystalline resin composition (I) containing a low crystalline olefin polymer (a) with an elastic modulus of 10 to 450 MPa in a content of 1 to 50% by mass, a high crystalline olefin polymer (b) with an elastic modulus of 500 to 2,000 MPa, the content of the component (b) being the rest, and an additive (c) in a content of 1 to 20,000 ppm by mass. Furthermore, (2) the method of producing a spunbond nonwoven fabric includes annealing a spunbond nonwoven fabric formed by using a core-sheath composite fiber containing a crystalline resin composition (I) as the sheath component; and a crystalline resin composition (II) as the core component containing a high crystalline olefin polymer (b′) with an elastic modulus of 500 to 2,000 MPa. | 11-21-2013 |
20140051315 | SPUNBOND NONWOVENS MADE FROM HIGH-CRYSTALLINITY PROPYLENE POLYMER - The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution M | 02-20-2014 |
20140051316 | CENTRIFUGAL ELECTROSPINNING APPARATUS AND METHODS AND FIBROUS STRUCTURES PRODUCED THEREFROM - A centrifugal electrospinning apparatus, centrifugal electrospinning method for the production of fibrous structures, and electrospun fibrous structures are provided. | 02-20-2014 |
20140051317 | SHEET MATERIAL, METHOD FOR PRODUCING THE SAME AND DEVICE FOR CARRYING OUT THE METHOD - A method for producing a sheet material is disclosed, comprising the steps of providing a carrier material solution comprising a carrier material, and depositing the carrier material onto a collector by electrospinning the carrier material solution out of a spinning device, the collector having a first electrical polarity and the spinning device having a second electrical polarity being opposite to the first polarity. The collector comprises at least one differential section, the electrical polarity of which is adjusted during deposition of the carrier material in such a manner that it either resembles the electrical polarity of the remaining sections of the collector or differs from it. The invention further relates to a device for carrying out said method and a sheet material which can be produced by said method. | 02-20-2014 |
20140057516 | THERMALLY INSULATING BATT AND COMPOSITE - The present invention relates to a thermally insulating batt comprising: (i) 10 to 70% by weight staple flash spun plexifilamentary fibers or staple melt spun fibrillated fibers; (ii) 10 to 70% by weight staple fibers; and (ii) 5 to 30% by weight binding agent that can also be used in a thermally insulating composite suitable for use in exterior portions of residential and commercial buildings. | 02-27-2014 |
20140134911 | RANDOM COPOLYMER OF PROPYLENE WITH 1-HEXENE - A propylene and 1-hexene copolymer containing from 0.5 wt % to less than 5 wt % of 1-hexene derived units said copolymer having:
| 05-15-2014 |
20140194025 | Production of Highly Concentrated Solutions of Self-Assembling Proteins - The present invention concerns stable aqueous protein dispersions comprising in an aqueous phase at least one self-assembling protein in dispersed form and also at least one specific dispersant for the self-assembling protein; processes for producing such stable aqueous dispersions; processes for electrospinning self-assembling proteins using such stable aqueous dispersions; processes for producing fibrous sheet bodies or fibers from such aqueous dispersions; the use of such aqueous dispersions for coating surfaces; the use of the materials produced by electrospinning in the manufacture of medical devices, hygiene articles and textiles; and also fibrous or fibrous sheet bodies produced by an electrospinning process of the present invention. | 07-10-2014 |
20150031262 | Fibers and Nonwovens Including a Propylene Random Copolymer, and Processes for Producing the Fibers and Nonwovens - Fibers can include a polypropylene composition, which can include a metallocene random copolymer of propylene and a comonomer that is an alpha-olefin different from propylene. The metallocene random copolymer can have a comonomer content of from 1.2 wt % to 1.8 wt %, a molecular weight distribution of at least 1.0 and of at most 4.0 obtained without thermal or chemical degradation, and a melting temperature T | 01-29-2015 |
20150299921 | APPARATUS FOR THE CONTINUOUS MANUFACTURE OF A SPUNBOND WEB - An apparatus for the continuous manufacture of a spunbond web from aerodynamically stretched thermoplastic filaments has at least one spinneret, a cooling chamber for cooling the filaments, a stretcher, and a deposition device for the deposition of the filaments to form the spunbond web. At least one filament guide having a plurality of filament-guide gaps opens toward the stretcher between the stretcher and the deposition device, and the filament guide or at least one guide part of the filament guide can be moved such that the filament-guide gap or the stretcher-side openings thereof are displaced transversely to the travel direction of the spunbond web. Thus the filaments or filament bundles guided along or through the filament-guide gap are given a transverse orientation to the travel direction of the spunbond web when deposited onto the deposition device. | 10-22-2015 |
20150368836 | FIBROUS NONWOVEN FABRIC - Provided is a fibrous nonwoven fabric including a resin composition (C) containing a high-crystalline polyolefin (A) and a low-crystalline polyolefin (B), wherein a half-crystallization time (t | 12-24-2015 |
20170232691 | THERMOSET COMPOSITE WITH SURFACE VEIL LAYER AND METHOD FOR MAKING THE SAME | 08-17-2017 |