Class / Patent application number | Description | Number of patent applications / Date published |
264211100 | Centripetal extrusion | 9 |
20090091056 | ATTENUATED FIBER SPINNING APPARATUS - A fiber making device, fiber making method, and apparatus which incorporates a series of two or more stacked, thin circular die plates, two end plates and two enclosure plates, where all of the plates cooperate to form a chamber having opposite ends and define a first end and a second end. The first end will receive material to be formed into fibers and the second end will receive a fiberizing fluid, although the second end could be used to supply a second fiber forming fluid to form composite fibers. All of the die plates have a central opening to receive fiber forming material, and at least one of the die plates has an outflow edge peripheral to the plate which will define a spinneret orifice, which is in fluid communication with said central opening, and which will allow the flow of material along a radial path through which fibers can be extruded. At least one of the die plates has an outflow edge peripheral to the plate which will define an opening and allow for the flow of a fiberizing fluid from the opening so that the fiber forming material flowing from the spinneret orifice will form fibers which will be engaged and shaped by the fiberizing fluid. | 04-09-2009 |
20090152762 | METHOD AND DEVICE FOR MELT SPINNING AND DEPOSITING SYNTHETIC FILAMENTS INTO A NON-WOVEN MATERIAL - A method and a device for melt spinning and depositing synthetic filaments into a nonwoven material are described. The synthetic filaments are extruded and pulled off here simultaneously next to one another in several filament groups and deposited jointly on a belt. Taking into consideration a later final processing of the nonwoven material, the filaments of the filament groups are deposited next to one another to form separate filament webs which are guided next to and parallel to one another. Narrower nonwoven webs can be produced even from very large production widths. For this purpose, the extrusion means and the pull-off means are disposed above the belt in such a manner that the filaments of the filament groups can be laid to form separate nonwoven webs. | 06-18-2009 |
20100244310 | REFRACTORY ALLOY, FIBRE-FORMING PLATE AND METHOD FOR PRODUCING MINERAL WOOL - An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): | 09-30-2010 |
20100308494 | Methods for making polylactic acid stereocomplex fibers - PLA stereocomplex fibers are made by separately melting a high-D PLA starting resin and a high-L starting resin, mixing the melts and spinning the molten mixture. Subsequent heat treatment introduces high-melting “stereocomplex” crystallinity into the fibers. The process can form fibers having a high content of “stereocomplex” crystallites that have a high melting temperature. As a result, the fibers have excellent thermal resistance. The process is also easily adaptable to commercial melt spinning operations. | 12-09-2010 |
20110089603 | Fiber and Nanofiber Spinning Method - The present invention relates to a method for spinning fibers, or fiberizers, using a rotary fiber-making die system made up of thin plates, embodied by a housing fixture, configured and stacked to define slots, channels and/or grooves through which the material used to make the fibers will flow. The die system allows for the production of different size and types of fibers, including nanofibers having a diameter of less than 1 micron, and facilitates a variety of cost effective methods for extrusion. The use of plates means the dies can be manufactured cost effectively, with easier clean-outs, replacements and/or variations. | 04-21-2011 |
20120292810 | APPARATUSES HAVING OUTLET ELEMENTS AND METHODS FOR THE PRODUCTION OF MICROFIBERS AND NANOFIBERS - Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device. | 11-22-2012 |
20130049253 | Process and Apparatus for Melt-Spinning, Drawing and Winding Multiple Synthetic Threads - The invention relates to a process for melt-spinning, drawing and winding multiple synthetic threads and to an apparatus for performing the process. The synthetic threads are spun concurrently side by side through extrusion of fine filamentous strands, cooled down and hauled off to be then collectively drawn as a sheet of threads and wound up on bobbins. To obtain ideally identical physical properties in the collective treatment of the threads, the threads are hauled off independently of each other by separate individual godets after extrusion and before collective drawing. This makes it possible to realize for each thread the same conditions during extrusion, cooling and hauling off. The apparatus includes multiple individual godets arranged side by side, which are arranged upstream of the drawing facility and are each associated with one of the threads. To pull off the threads, the individual godets are configured to be individually driveable. | 02-28-2013 |
20150061180 | SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF - Apparatuses and methods for the production of superfine fibers. | 03-05-2015 |
20150084231 | THERMOPLASTIC FIBRES WITH REDUCED SURFACE TENSION - The present invention relates to a process for producing thermoplastic fibres having reduced surface tension and also to products obtainable by the melt-spinning process from these thermoplastic fibres having reduced surface tension, wherein the thermoplastic to be used is admixed with a copolymer of at least one α-olefin and at least one acrylic or methacrylic ester of an aliphatic alcohol. | 03-26-2015 |