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| Number | Title | Issue Date |
| 7998387 | Process for producing a plurality of high-strength, high modulus aromatic polyamide filaments A process for producing a plurality of high strength, high modulus aromatic polyamide filaments that includes extruding an acid solution containing at least 15% by weight of an aromatic polyamide through linearly arranged orifices in a spinneret to provide a warp of... | 08/16/2011 |
| 7655164 | Method for obtaining macroscopic fibres and strips from colloidal particles and in particular carbon nanotubes The invention concerns a method for obtaining fibers and strips from colloidal particles, characterized in that it consists in: 1) dispersing said particles in a solvent optionally using a surfactant; 2) injecting the resulting dispersion solution through at least a... | 02/02/2010 |
| 7364659 | Preparation of asymmetric polyethylene hollow fiber membrane A porous polyethylene hollow fiber membrane having a pore-size gradient across the inner and outer surfaces thereof is prepared by introducing, during the cooling step of a melt-spun polyethylene hollow fiber, a nitrogen flow and a solvent having a boiling point in ... | 04/29/2008 |
| 7326298 | Wire insulating line In a wire insulating line, a cooling device that cools down a traveling high-temperature linear material, which is resin-coated by an extruder, in cooling water includes a reservoir tank that reserves the cooling water and allows the linear material to pass therein,... | 02/05/2008 |
| 7303710 | Method and device for extruding a continuous moulded body The present invention relates to an apparatus and a method as well as a system for extruding continuously molded bodies for producing filaments or staple fibers from an extrusion solution, such as a cellulose solution containing water, cellulose and tertiary amine o... | 12/04/2007 |
| 7267788 | Cavity-creating tool for foaming operation A tool creates a fastener-receiving cavity within a foam-filled structure that includes a panel with a slot for receiving the fastener and foam backing that is cast in place against on the underside of the panel. The tool includes a clip and a plunger. The clip is i... | 09/11/2007 |
| 7140855 | Inner mandrel An internal mandrel for cooling a tubular thin film is disclosed where an air layer is eliminated in the lower side cooler of the internal mandrel, so that the tubular thin film can be continuously and stably produced. In the internal mandrel for directly cooling th... | 11/28/2006 |
| 6955850 | Polymeric structures and method for making same Polymeric structures, methods for making same, fibrous structures comprising same and product incorporating same are provided. ... | 10/18/2005 |
| 6902383 | Apparatus containing cooling and warming devices for the preparation of a polymer solution A novel apparatus for the preparation of a polymer solution includes a stirring device, an extruder connected to the stirring device, a cooling device connected to the extruder, and a warming device connected to the cooling device. The extruder is a fiber or membran... | 06/07/2005 |
| 6875397 | Methods for biopolymer coagulation An apparatus for forming a fiber from a biocompatible biopolymer includes a fiber-formation tube that defines a bore extending generally vertically from an upper end to a lower end. Coagulation fluid enters the tube through a fluid inlet coupled to its upper end and... | 04/05/2005 |
| 6426026 | Process for pelletizing ultra-high melt flow polymers Disclosed is a process for pelletizing high melt flow crystalline polymers to produce crystalline pellet products. The process includes feeding a polyolefin granular or pelleted polymer into a melting/mixing mechanism to provide a molten polymer material.... | 07/30/2002 |
| 6264874 | Method of controlling the diameter of a clear extruded tube A method and apparatus for controlling the diameter of a clear extruded molten tube wherein the extruded tube contains a volume of a clear liquid and the level of the liquid is indicative of the tube diameter so the level rises as the tube diameter decrea... | 07/24/2001 |
| 6245876 | Continuous molded article for polyurethaneurea and production method thereof The present invention relates to a continuous shaped article such as a polyurethaneurea fiber and a polyurethaneurea film having a birefringence index (Ɗn) of from at least 1.0×10-4 to 8.0×10-4 in a nontensile state, a crosslinkin... | 06/12/2001 |
| 6174358 | Method for producing cellulose particles A method for producing cellulose particles whereby a cellulose solution is dispersed in a regenerant or nonsolvent and the cellulose is regenerated or precipitated in dispersed form into cellulose particles.... | 01/16/2001 |
| 6039905 | Apparatus and method for granulating plastic strands A novel apparatus is described for granulating plastic strands (4) which emerge from nozzles (3) in molten form and are supplied to a following, downward inclined runoff channel (1) in which the plastic strands are transported by a liquid stream, in parti... | 03/21/2000 |
| 5976439 | Alginate ropes, method of preparation and use A process for preparing an alginate rope, which process comprises the steps of: (a) extruding an aqueous solution of a water soluble alginate into a coagulation bath; (b) contacting the extruded water soluble alginate with a source of a cation capable of ... | 11/02/1999 |
| 5868985 | Process for manufacturing cellulose fibers A process for manufacturing cellulose fibers by extrusion of a spinning solution, containing dissolved cellulose, into a gaseous medium through a predetermined gas zone, with subsequent immersion in and guidance through a coagulation bath over a predeterm... | 02/09/1999 |
| 5736087 | Method for finishing of sausage casings The present invention relates to improved methods for the regeneration of cellulosic artificial sausage casings including the steps of immersing the regenerating casing in at least one regeneration bath including a solution of sodium sulfate and sulfuric ... | 04/07/1998 |
| 5667813 | Mandrel for cooling Apparatus for cooling a tubular thin film of thermoplastic resin in a melted state is described. The apparatus is capable of cooling the thin film from both the inside and the outside thereof while setting its diameter by interposing the film between the ... | 09/16/1997 |
| 5614095 | Filtration mediam support material and filter comprising same The present invention provides a method of preparing a support for a filtration medium comprising passing a sheet of nonwoven fibrous polymeric material having first and second sides through a calender which comprises a nondeformable roll and a resilient ... | 03/25/1997 |
| 5609892 | Apparatus for the production of encapsulated foaming concentrates The present invention is directed to apparatus for compounding and pelletizing of chemical foaming agents in a high melt resin carrier and producing unique, uniform encapsulated and pelletized chemical foaming concentrates. More specifically, the present ... | 03/11/1997 |
| 5607700 | Synthetic resin pelletizing machine A synthetic resin pelletizing machine includes an extrusion cylinder forming, with a horizontal plane, an installation angle θ which is in the range of 0° | 03/04/1997 |
| 5593703 | Mandrel for cooling Apparatus for cooling a tubular thin film of thermoplastic resin in a melted state is described. The apparatus is capable of cooling the thin film from both the inside and the outside thereof while setting its diameter by interposing the film between the ... | 01/14/1997 |
| 5296286 | Process for preparing subdenier fibers, pulp-like short fibers, fibrids, rovings and mats from isotropic polymer solutions A process for preparing subdenier fibers and structures thereof from isotropic polymer solutions is disclosed. The process comprises extruding a stream of the polymer solution into a chamber, introducing a pressurized gas into the chamber, directing the g... | 03/22/1994 |
| 5244607 | Quenching and coagulation of filaments in an ultrasonic field More uniform and more rapid quenching and coagulation of filaments is achieved by contacting the filaments in a chamber with coagulating liquid and generating pressure fluctuations in the liquid at high frequency sonic or ultrasonic frequencies.... | 09/14/1993 |
| 5211899 | Process for production of polypropylene sheets or films A process for producing a polypropylene resin sheet or film by introducing a polypropylene resin in a film form, which has been extruded from a T-die in a molten state, into a slit through which cooling water is flowing, passing the polypropylene resin fi... | 05/18/1993 |
| 5151227 | Process for continuous spinning of hollow-fiber membranes using a solvent mixture as a precipitation medium Microporous hollow fiber polysulfone membranes can be prepared continuously by using a particular combination of casting solution and precipitation solution formulations, and casting conditions. The concentration of components in the precipitation solutio... | 09/29/1992 |
| 5028372 | Method for producing para-aramid pulp A method for producing para-aramid pulp includes forming a liquid, actively-polymerizing solution and subjecting the solution to orienting flow which produces an optically anisotropic liquid solution with polymer chains oriented in the direction of the fl... | 07/02/1991 |
| 5019316 | Method for producing thermoplastic synthetic yarn A system for producing a drawn yarn having a durable mechanical and thermal stability in practical use from a fiber-forming polymer by means of a single continuous process is disclosed. A yarn extruded from a spinneret is first introduced into a liquid ba... | 05/28/1991 |
| 4978492 | Method to extract material from a running length of fiber A method of extracting a material from a continuous running length of fiber comprising continuously moving the fiber through a conduit while simultaneously flowing a solvent for the material through the conduit with the conduit having a length and cross s... | 12/18/1990 |
| 4965033 | Process for spinning high-strength, high-modulus aromatic polyamides A process for spinning high-strength high-modulus, aromatic polyamide filaments is disclosed in which an acid solution containing at least 30 g per 100 ml acid of aromatic polyamide having an inherent viscosity of at least 4 and chain-extending bonds whic... | 10/23/1990 |
| 4963298 | Process for preparing fiber, rovings and mats from lyotropic liquid crystalline polymers Process for preparing subdenier fiber and structures thereof from lyotropic liquid crystalline polymers comprising extruding a stream of the polymer into a chamber, introducing a pressurized gas into the chamber, directing the gas in the flow direction of... | 10/16/1990 |
| 4952265 | Mat consisting of filament loop aggregations and method and apparatus for producing the same In this mat consisting of filament loop aggregations, irregular form loops are formed in the upright direction by respectively winding to be coil-like many filaments coarse in the arranging intervals and made of a thermoplastic synthetic resin and are fus... | 08/28/1990 |
| 4943218 | Granulation chamber for extruders of materials such as plastics Reduced-size granulation chamber for extruders of materials such as plastics, constituted by a rotating drum wherein the cooling water remains adherent to the walls due to the centrifugal force and which has openings for the exit of the water and of the g... | 07/24/1990 |
| 4923662 | Process for producing polyester fibers A process for producing polyester fibers having excellent tensile properties, particularly suitable as reinforcement material for tires, belts, etc., involves melt-spinning an ethylene terephthalate polyester to form highly oriented low crystalline polyes... | 05/08/1990 |
| 4913757 | Method of producing a mat consisting of filament loop aggregations A method of producing a mat consisting of filament loop aggregations. The first step is that of forming a first filament loop aggregation low in the filament density wherein many filaments are made. These by extruding a thermoplastic synthetic resin out o... | 04/03/1990 |
| 4910850 | Method for coagulation of a polymer latex A method for coagulation of a polymer latex by feeding the polymer latex to an extruder having a base plate and a plurality of fine tubes fixed to said base plate and extending therefrom, said fine tubes being mutually spaced by at least 1 mm and protrudi... | 03/27/1990 |
| 4898704 | Coagulating process for filaments Coagulating a warp of filaments from a linear spinneret by delivering a transparent, jetted sheet of coagulating liquid equally and uniformly along each side of the warp.... | 02/06/1990 |
| 4876040 | Two-stage process for preparing aromatic polyamide fiber A process for preparing aromatic polyamide fibers wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form a... | 10/24/1989 |
| 4869860 | Spinning process for aromatic polyamide filaments Process for producing high-strength, aromatic polyamide filaments by delivering substantially uniform amounts of a spinning solution to a plurality of apertures in a spinneret plate, extruding the solution downwardly in a single vertical warp through a no... | 09/26/1989 |
